Relevant bibliographies by topics / Geotechnické metody

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Geotechnické metody'

Author: Grafiati
Published: 28 June 2021
Last updated: 2 February 2022

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Journal articles on the topic "Geotechnické metody"

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Zakaria, Zufialdi, and Luthfan Harisan Jihadi. "Peran Ilmu Dasar dalam Geoteknik untuk Menunjang Pembangunan Berkelanjutan yang Berwawasan Lingkungan." Bulletin of Scientific Contribution 14, no. 3 (January 26, 2017): 239. http://dx.doi.org/10.24198/bsc.vol14.yr2016.art10971.

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Geoteknik adalah salah satu dari cabang dari ilmu geologi yang erat hubungannya dengan pembangunan berkelanjutan yang berwawasan lingkungan. Kajian-kajian geoteknik memerlukan ilmu dasar seperti matematika, statistika, fisika, biologi, dan kimia. Beberapa kajian geoteknik berhubungan dengan pembangunan infrastruktur seperti jalan tol, jalan kereta api, jembatan, menara, pondasi gedung, desain lereng rekayasa, dan lain-lain. Makalah ini memperlihatkan beberapa penelitian geoteknik yang memanfaatkan ilmu dasar, yaitu desain lereng stabil, desain pondasi, hubungan antar variabel tanah, maupun perbaikan tanah. Penelitiannya a.l.: 1) Analisis kestabilan lereng, tujuan untuk mendapatkan lereng stabil, metode menggunakan model Starlet, hasil yang didapatkan adalah desain lereng stabil dan antisipasi keruntuhan lereng pada zona kerentanan gerakan tanah. 2) Analisis dayadukung tanah, tujuan untuk menentukan dayadukung yang aman bagi fondasi, metode yang digunakan adalah melalui cara Terzaghi, hasil yang didapatkan adalah nilai dayadukung tanah yang diijinkan untuk peletakan fondasi. 3) Soil improvement, tujuan untuk perkuatan fondasi, metode melalui pencampuran tanah dasar dengan kapur (CaO), hasil yang didapatkan adalah meningkatnya kekuatan dayadukung tanah pada tanah ekspansif. Kesimpulan dari semua penelitan geoteknik tersebut adalah kajian geoteknik tidak bisa lepas dari ilmu dasar matematika dan ilmu pengetahuan alam. Kata Kunci: geoteknik, pembangunan berkelanjutan, lereng stabil, dayadukung tanah, soil improvement Geotechnics is one of branches of geological science are closely related to environmentally sustainable development. Geotechnical studies require some basic sciences such as mathematics, statistics, physics, biology, and chemistry. Some geotechnical studies related to the development of infrastructure such as toll roads, railways, bridges, towers, building foundation, slope design engineering, and others. This paper shows some geotechnical studies that utilize basic sciences, namely: stable slope design, foundation design, the relationship between variables soil, and soil improvement. The study included: 1) Slope stability analysis, objective research is to get a stable slope, the method is using the Starlet model, the results obtained are stable slope design and anticipation of the slope landslide on vulnerability zone of mass movement, 2) Analysis of soil bearing capacity, in order to determine safety bearing capacity for the foundation, the method is using Terzaghi equtaion, the results obtained are allowable soil bearing capacity for safety foundation. 3) Soil improvement, the goal of strengthening the foundation, the basic method by mixing soil with lime (CaO), the results obtained are the increasing strength of the soil bearing capacity on expansive soil. The conclusion of all geotechnical research are geotechnical studies cannot be separated from the basic sciences of mathematics and natural science. Keywords: geotechnical, sustainable development, stable slope, soil bearing capacity, soil improvement
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S.Si, MT, Alam Tronics,, and Ivan Bahder, S.Si, MTA. "PENGGUNAAN APLIKASI GPR (GROUND PENETRATING RADAR) DENGAN METODE NON-DESTRUCTIVE UNTUK KOLEKTIFITAS DATA KUALITATIF PADA ANALISA SUBSURFACE TANAH EKSTRIM LUNAK." Prosiding Temu Profesi Tahunan PERHAPI 1, no. 1 (March 29, 2020): 167–80. http://dx.doi.org/10.36986/ptptp.v1i1.60.

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ABSTRAK Ground-Penetrating Radar (GPR) adalah metode Geofisika dengan menggunakan teknologi radar untuk identifikasi perlapisan batuan dan “subsurface” pada investigasi geoteknik. Metode ini termasuk metode “non-destructive” (tanpa melakukan perusakan pada original base) menggunakan gelombang elektromagnetik dengan panjang gelombang mikro (Frekuensi UHF/VHF) yaitu pada garis spektrum gelombang radio dan dapat mendeteksi signal reflektif dari struktur bawah tanah. Kedalaman kemampuan alat GPR untuk “sensing” (penetrasi pembacaan) pada struktur batuan/tanah dengan GPR mencapai ketebalan 50m. GPR bisa mendeteksi (sensing) perubahan arah perlapisan batuan dan memprediksi ketebalan tanah ekstrim lunak, sehingga dapat mengidentifikasi resiko dan menekan biaya penanganan (reduction impact cost) dari perilaku extreme base sebelum proses “dumping” di area berawa atau gambut. Penggunaan instrumen GPR juga dapat menunjang detail interpretasi pengeboran geologi PT. KPC. Metode ini digunakan sebagai metode alternatif jika metode pengeboran geologi terlalu berbahaya dilakukan karena lereng yang diinvestigasi berada pada kondisi kritis atau area rawa yang tidak bisa dilalui mobilisasi rig drilling. Geoteknik KPC telah melakukan investigasi geoteknik dengan alat GPR yang telah dikorelasikan dengan data CPT. Pada korelasi nilai konstanta dielektrik dengan nilai CPT, dengan rentang 56.09 sampai 61.08 memiliki nilai konus terkoreksi, qt dengan rentang 0.12 MPa sampai 0.21 MPa. Hasil akhirnya akan diperoleh persamaan empiris data GPR vs data CPT.Kata kunci: investigasi geoteknik, non-destructive, sensing, dan reduction impact cost ABSTRACT Ground-Penetrating Radar (GPR) is Geophysical Method by using Radar Technology to purpose identification rock bedding and subsurface on geotechnical investigation. This method is classified for non-destructive application (without doing damage the original base) and applied by Electromagnetic Wave with microwave bandwidth (Frequency UHF/VHF) in spectrographic transmitting-wave (radio wave) and also to detect reflective pulse from the ground. Performance modulation depth of the GPR for sensing (beam penetration) rock/soil is for 50m. The GPR can detect (sensing) changes in the direction of rock bedding and for predicting extremely soft soil thickness, so as to identify risks and reduce handling cost (reduction impact cost) from extreme base behavior before the dumping process in marshy or peat areas. The use of GPR instruments can also support detailed interpretation of geological drilling in PT. KPC.This method is used as an alternative method if the geological drilling method is too dangerous to act, because the slopes investigated are in critical condition or swampy areas that cannot be traversed by drilling rig mobilization. KPC geotechnics have conducted geotechnical investigations with GPR tools that have been correlated with data CPT. The result of the correlation of dielectric constant values with CPT values, with a range of 56.09 to 61.08 has a corrected cone value, qt with a range of 0.12 MPa to 0.21 MPa. The final result is empirical correlation between data GPR and data CPT.Keynote: geotechnical investigation, non-destructive, sensing, and reduction impact cost
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Wu, Jian Chuan, Xin Li Hu, Miao Jun Sun, and Shuai Hua. "Research Status and Prospect of Strain Monitoring Method of Geotechnical Engineering." Advanced Materials Research 594-597 (November 2012): 532–41. http://dx.doi.org/10.4028/www.scientific.net/amr.594-597.532.

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This paper summarizes the importance of strain monitoring, points the characteristics and the main difficulty in strain monitoring of geotechnical. From the current situation in Strain monitoring of geotechnical engineering, it analyzes and summarizes the principle and the practical application of the advantages and disadvantages of strain gauges, fiber Bragg grating and distributed optical fiber. Finally, it designs an overview of geotechnical engineering strain monitoring system, nine principles of strain monitoring system to be put forward, and the direction of geotechnical engineering is the development of strain monitoring system and application.
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Kieu, Chung Le Thuy, Ha Thi San Phan, and Son Minh Le. "A case study on optimizing the geotechnical site investigation using Kriging method." Science and Technology Development Journal 17, no. 3 (September 30, 2014): 54–61. http://dx.doi.org/10.32508/stdj.v17i3.1474.

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One of the major tasks in geotechnical investigation is the stratigraphy distribution and the physico-mechanical properties of strata encountered in the investigation area. In order to reduce the project risks associated with uncertainties in predicting the distribution of strata (in area and in depth), a geotechnical investigation plan is usually designed with as many as possible of the boreholes. And this, in turn, increases the investigation costs. On the contrary, the owner of the project is expected to gather as much information about the subsurface soils as possible at the lowest cost. To deal with this contradiction, geotechnical engineers not only mobilize their knowledge on the investigation area and their experiences in the field of geotechnical investigation but also should be supported by geostatistical tools, especially the interpolation method of Kriging. Based on the real data taken from a geotechnical investigation project in Saigon (Vietnam), this paper will introduce two geotechnical investigation plans: a) an actual investigation plan; b) an optimized investigation plan designed with the support of Kriging method. From these two plans, the ability of Kriging in optimization of geotechnical investigation will be evaluated.
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Zhang, Shu Jun, Zhi Jun Xu, Luo Zhong, and Zhao Ran Xiao. "A Modified Method to Fit Probability Distributions of Geotechnical Parameters Using Stochastic Weighted Entropy Principle." Applied Mechanics and Materials 580-583 (July 2014): 9–16. http://dx.doi.org/10.4028/www.scientific.net/amm.580-583.9.

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Due to various uncertainties, most of geotechnical parameters are small samples, which causes much trouble when the probability distribution of geotechnical parameter is fitted using traditional distributions. This paper uses stochastic weighted method to improve the small samples of Geotechnical parameters into big samples, thus solving the problems caused by the small samples. Meanwhile, the probability density function of geotechnical parameter is derived based on maximum entropy principle, the advantage of presented method is verified through Kolmogorov-Smirnov Test. Case study shows that the proposed method not only overcomes the dependence of conventional fitting methods on classical probability distributions, but also the fitting more close to the fact because the data come from the big sample improved by geotechnical parameters, which has important engineering significance.
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Heesen, E., and E. Kreuzer. "Discrete Element Method in der Geotechnik." PAMM 7, no. 1 (December 2007): 4010039–40. http://dx.doi.org/10.1002/pamm.200700890.

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IWATSUKI, Osamu, Masaaki TABATA, Ryuji KUBOTA, Masakazu FURUTANI, and Oshie TAZAWA. "Shallow Seismic Reflection Method for Geotechnical Surveys." Journal of the Japan Society of Engineering Geology 38, no. 6 (1998): 359–69. http://dx.doi.org/10.5110/jjseg.38.359.

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Li, Ruilin, Guoqing Zhou, Guozhou Chen, Matthew R. Hall, and Xiaodong Zhao. "Geotechnical magnetic–similitude–gravity model testing method." International Journal of Physical Modelling in Geotechnics 19, no. 4 (July 2019): 181–99. http://dx.doi.org/10.1680/jphmg.17.00014.

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Heibaum, Michael, and Markus Herten. "Geotechnical verifications using the finite-element method?" Bautechnik 86, S1 (August 2009): 7–15. http://dx.doi.org/10.1002/bate.200910037.

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Yang, Zhiyong, and Jianye Ching. "A novel simplified geotechnical reliability analysis method." Applied Mathematical Modelling 74 (October 2019): 337–49. http://dx.doi.org/10.1016/j.apm.2019.04.055.

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Dissertations / Theses on the topic "Geotechnické metody"

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Černý, Vít. "Optimalizace geotechnického průzkumu a monitoringu při navrhování a provádění podzemních staveb." Doctoral thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-234559.

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The presented thesis focuses primarily on issues of geotechnical survey and geotechnical monitoring for underground line constructions. It deals with the current practice of geotechnical survey and monitoring. Based on the knowledge gained from specific buildings in the Czech Republic (Královopolské tunnels, tram tunnel Žabovřeská) and based on the author's practical local and foreign experience submits suggestions regarding their mutual optimization in order to improve outputs and reduce financial costs.
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Červenka, Jan. "Výpočet sedání výškové budovy s využitím metody konečných prvků." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409746.

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The focus of this thesis is to deal with reverse engineering of high-rise building settlements. This is modeled via the finite element method performed in the Plaxis 3D program. In the first part of this thesis, a calibration of input parameters of an appropriate material model – Hardening soil – is conducted. This calibration is a result of oedometric test data which were obtained within a geotechnical survey. An influence of soils over consolidation affecting calibration and the material model choice is described. Final values of reference stiffness parameters are used in a mathematical model of the focused area. This model is created for one half of the high-rise building plan, including vestibule. The high-rise building is founded in a foundation pit. The foundations of this building consist of raft foundation and piles of jet grouting. In the model, there are also changes in pore pressure during an excavation of foundation pit included. The functional model is used for parametric analyses, namely examining cases of object´s foundations and the possible influence of foundation pit´s symmetry on the object´s settlement. All the calculated processes in the object´s settlements are then compared to data obtained from geotechnical monitoring of the structure.
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Wetterová, Alice. "Řešení stability svahu v náročných geotechnických podmínkách." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225706.

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Aim of the diploma thesis is design elements of slope stabilization in accordance with the planned highway D3 in Slovakia section of Cadca, Bukov - Svrčinovec and relocation of a local road. Objective subject is situated on the slopes of Cadca. In diploma thesis is an analysis of the area with the proposed stabilizing elements in the 5 GEO FEM, their assessment, including determining the overall stability of the territory according to the degree of safety.
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Ho, David Kar Hung. "Analyses of geotechnical construction by the finite element method." Thesis, University of Manchester, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.277388.

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Koudela, Pavel. "Stanovení hodnot vstupních parametrů pokročilých materiálových modelů s využitím optimalizačních metod." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-372248.

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Choice of the constitutive model and determination of input parameters are necessary for a successful application of numerical methods in geotechnical engineering. Higher complexity of modern constitutive models results in an increase of the number of input parameters and time requirements for their calibration. Optimization methods are a possible solution for this problem. An application in which metaheuristic optimization method Particle swarm optimization (PSO) is involved is presented in this thesis. Critical review and testing of various PSO alternatives was performed in the first part of this thesis. The most efective PSO alternatives were chosen. In the second part connection between PSO algorithm and finite element solver was prepared. Automatization of determination of constitutive models input parameters was performed on three boundary value problems: laboratory test (oedometer), in-situ test (pressuremeter) and geotechical construction (retaining wall). Three types of constitutive models are used. Linear elastic-perfectly plastic Mohr-Coulomb model, elastoplastic non-linear Hardening soil model and Hardening soil - small strain model.
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Bandara, Samila Sanjeevanie. "Material point method to simulate large deformation problems in fluid-saturated granular medium." Thesis, University of Cambridge, 2013. https://www.repository.cam.ac.uk/handle/1810/283928.

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Serna, Marcelo Alejandro Llano. "Experimental and numerical study of geotechnical problems using the material point method." reponame:Repositório Institucional da UnB, 2016. http://repositorio.unb.br/handle/10482/22294.

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Tese (doutorado)—Universidade de Brasília, Faculdade de Tecnologia, Programa de Pós-Graduação em Geotecnia, 2016.
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O objetivo deste trabalho é investigar os mecanismos de alguns problemas geotécnicos submetidos a grandes deformações, e mais especificamente o cone de penetração e escorregamentos na área de estabilidade de taludes. O fenômeno de grandes deformações em Geotecnia pode ser observado em problemas de ensaios de campo como SPT, CPT, DMT; ensaios de laboratório como o ensaio de cone e de palheta; em aplicações práticas como a cravação de estacas e em encostas após a ruptura de um talude. Uma das principais limitações na prática da engenharia geotécnica é que as formulações tradicionais para o cálculo de estruturas dependem da hipótese de pequenas deformações. Na última década, com o aumento da capacidade computacional e surgimento de novos métodos numéricos, tornou-se factível a modelagem numérica de problemas de grandes deformações, gerando a possibilidade de estudá-los em maior detalhe. Este trabalho centra-se na aplicação do Método do Ponto Material (MPM). O MPM é uma ferramenta numérica que adota um esquema de discretização Euleriano-Lagrangiano, o que fornece um esquema sofisticado para resolver o balanço de momento linear quando se observam grandes deformações. O método foi aplicado à análise de ensaios de penetração de cone em laboratório e a problemas reais de escorregamentos de taludes com grandes movimentos de massa. Inicialmente, foram feitos ensaios diretos e indiretos de resistência ao cisalhamento em amostras de caulim. O programa de ensaios de laboratório inclui o ensaio de palheta, ensaio de cone, ensaio de compressão oedométrica e ensaio de compressão triaxial convencional. Como produto dos ensaios de laboratório, foram propostas algumas relações entre parâmetros de estados críticos e o ensaio de queda de cone. Também baseado nos ensaios de laboratório, o programa NairnMPM foi testado e calibrado para resolver problemas geotécnicos simples como o ensaio de cone e o colapso de uma coluna de solo. Depois disso e com o intuito de verificar a capacidade do MPM para resolver problemas de grande escala, foram simulados os escorregamentos de taludes na barragem de Vajont, na Itália, e na rodovia Tokai-Hokuriku, no Japão. Finalmente, foi testado o processo de modelagem do escorregamento de Alto Verde, na Colômbia, e as variáveis dinâmicas previstas no modelo foram usadas no cálculo de risco. Os resultados se ajustaram muito bem às observações de campo, destacando a potencialidade do MPM como ferramenta prática na modelagem de vários problemas de grandes deformações na engenharia geotécnica.
The goal of this work is to investigate the mechanisms of various geotechnical problems subjected to finite strains, more specifically the fall cone test and run-out process during landslides. Large deformation phenomena may be observed in field testing such as SPT, CPT, DMT; laboratory testing such as fall cone test, mini-vane test, and practical problems such as pile driving and run-out process during landslides. The main limitations in the practice of geotechnical engineering are due to the fact that a wide number of design frameworks are based on the small strain hypothesis. In the last decade, with the increasing computational capacity and the development of novel numerical methods; solving large deformation models have become feasible. This fact allows studying in detail a wide number of phenomena in geotechnics. This work focuses on the application of the Material Point Method (MPM). The MPM is a numerical tool that adopts a Eulerian-Lagrangian scheme. Moreover, it allows a solid framework to solve the linear momentum balance when finite strains are observed. The method was used in the simulation of the fall cone test and real scale mass movements in landslides. Initially, direct and indirect shear strength measurements on kaolin clay were performed. The laboratory testing program included mini-vane shear test, fall cone test, oedometric compression, and conventional triaxial compression test. As a result of the laboratory testing, interesting relationships between the critical state parameters and the fall cone were established. Furthermore, NairnMPM open source code was tested and calibrated using the laboratory results to later solve simple geotechnical problems such as fall cone test and the collapse of a soil column. Afterwards, the possibility of simulating real-scale problems in landslides was addressed. The slope failure in Vajont, Italy, and Tokai-Hokuriku Expressway, Japan, were considered. Finally, the framework was tested in a landslide in Alto Verde, Colombia. The computed dynamic quantities were used in risk assessment of landslides. The results matched very well with field observations highlighting the potential of using MPM as a practical tool for modelling various problems involving large strains in geotechnical engineering.
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Sleiman, Maya. "2D Modelling of GeosyntheticallyReinforced Piled Embankments : Calibration Methods in PLAXIS 2D & Review of AnalyticalGuidelines." Thesis, KTH, Jord- och bergmekanik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-291424.

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This thesis focuses on the 2D modelling of Geosyntheticaly Reinforced Piled Embankments (GRPE) in PLAXIS 2D. In doing so, it explores two main aspects: 1) the calibration of Interface Stiffness Factors (ISFs) governing the soil-pile interaction of Embedded BeamRow (EBR) elements in PLAXIS 2D, and 2) the prospects and limitations of modelling geogrids (GR) in PLAXIS 2D when underlain by EBR elements; although several studies have validates the EBR element in modelling piles, none address the geogrid-EBR interaction and its implications on modelling GRPE systems. The thesis performs the calibration and validation processes using the full-scale GRPE structure ASIRI (Amélioration des Sols parInclusions Rigide) as documented in Briançon and Simon, 2012 and Nunez et al., 2013. Calibration of the EBR’s ISFs is done against 1) load-displacement curve of a test pile, 2)load-displacement of the structure’s monitored piles, and 3) differential soil-pile settlement. Model results for soil settlement, pile settlement, and pile load are then compared to reported values from the ASIRI site. Results show that the natural deviation between the structure and test pile’s load - displacement results in a wide range of possible calibration values for the ISFs, making calibration based on a test pile’s load-displacement curve an unpractical method. Even when such natural deviations were eliminated by calibrating the model against the structure’s reported values for pile load-displacement, model predictions for subsoil displacement were compromised. It is thus advisable to calibrate the EBR element with respect to soil settlement, pile settlement, and pile load rather than solely on a load-displacement curve as to avoid high divergences in soil-pile differential settlement. Modelling geogrids in GRPE systems, PLAXIS 2D underestimates GR strain due to its inability to simulate GR deflection: EBR elements are superimposed on top of a continuous soil mesh, thus allowing the embankment soil to settle through the EBR element. This unrealistically minimizes GR deflection, which underestimates GR strain when modelling GRPEs in PLAXIS 2D. In addition to validating the 2D modelling of GRPE systems, the thesis conducts a comparative literature review of GRPE design guidelines, focusing on the British BS8006 (2010), the German EBGEO (2011), and the Dutch CUR226 (2016). It then applies the latter two to the ASIRI full scale case study and compares results for predicted maximum GR strainand displacement to those from the PLAXIS 2D model and ASIRI measurements. The literature review shows that the geogrid load distribution is highly dependent on the state of subsoil support, where a uniform distribution is more appropriate for high subsoil support, and an inverse-triangular one more appropriate for low subsoil support. However, the analytical analysis of the ASIRI case shows that the triangular distribution, previously dismissed as unrealistic by the literature review, gives satisfactory results due to a combination of soil sliding and high subsoil support at the ASIRI site.
Examensarbetet utvärderar 2D modellering av bankpålning med geosyntetisk armering (Geosyntheticallt Reinforced Piled Embankments – GRPE) i PLAXIS 2D. Examensarbetet utforskar två huvudaspekter: 1) kalibrering av Interface Stiffness Factors (ISFs) som styrjord-påle samspelet av Embedded Beam Row (EBR) element i PLAXIS 2D, och 2) möjligheter och begränsningar vid modellering av geonät i PLAXIS 2D när de ligger över EBR element. Även om flera studier har validerat användningen av EBR element för modelleringenav pålning, har inga behandlat samspelet geonät-EBR samt dess implikationer på modelleringen av GRPE. I arbetet har kalibrerings- och valideringsprocesser genomförts genom att använda den fullskaliga GRPE strukturen ASIRI (Amélioration des Sols par Inclusions Rigide) som dokumenterats i Briançon och Simon(2012) samt Nunez et al. (2013). Kalibrering av EBR ISFshar utförts mot: 1) last/förskjutningssamband av testpålar, 2) last/förskjutningssambad av övervakade pålar i strukturen, och 3) jord-påle differenssättningen. Modellens resultat försättningar i jorden, deformation i pålarna och lasten i pålarna jämförs med mätningar från ASIRI. Resultaten visar att naturliga avvikelser mellan strukturens- och testpålens last/förskjutningssambad resulterar i ett brett spektrum av möjliga kalibreringsvärden för ISFs, som gör kalibrering mot testpålens last/förskjutningssambad opraktisk. Även vid justering för detta genom kalibrering mot strukturpålens last/förskjutningssambad minskade modellens noggrannhet för sättningar i jorden. Det är således lämpligt att kalibrera EBR element motsättningar i jorden, deformation i pålarna och lasten i pålarna i stället för bara last/förskjutningssambaden för att undvika hög divergens i differenssättningen jord-påle. Vid modellering av GRPE-geonät underskattar PLAXIS 2D töjningen i geonäten på grund av sin oförmåga att simulera geonätens utböjning. EBR element ligger över ett kontinuerligt beräkningsnät av jord (soil mesh) som tillåter bankfyllningen att sätta genom EBRelement. Detta förhindrar utböjningen i geonätet som resulterar i en underskattning av töjningen i nätet vid modellering av GRPE i PLAXIS 2D. Förutom validering av 2D modelleringen av GRPE strukturer utför examensarbetet en jämförande literaturstudie av GRPE dimensioneringsriktlinjer med fokus på Brittisk BS8006 (2010), Tysk EBGEO (2011), och Nederländsk CUR226 (2016). De två sista nämnda riktlinjerna tillämpas på ASIRI för att prognosticera maximum geonättöjning och utböjning. Beräkningsresultat jämförs med värden från PLAXIS 2D modellen och mätningar från ASIRI. Litteraturstudien visar att geonätens belastningsfördelning är beroende främst på stödet från den underliggande jorden. Likformig belastningsfördelningen är lämpligare för en hög stödnivå och en invers-triangulär belastningsfördelningen för en låg stödnivå. Dock visar den analytiska analysen av ASIRI strukturen att en triangulär belastningsfördelning, som ansågs vara orealistisk i litteraturstudien, ger tillfredsställande resultat. Det är på grund av kombinationen av ’jordensglidning’ och hög stödnivå från den underliggandejorden i ASIRI:s fall.
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Herle, Ivo. "Ohde-Kolloquium 2014: Aktuelle Themen der Geotechnik." Technische Universität Dresden, 2014. https://tud.qucosa.de/id/qucosa%3A27847.

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Tagungsband des Ohde-Kolloquiums 2014. Die Fachtagung fand am 26.03.2014 an der TU Dresden statt.:Experimentelle Untersuchung der Kapillarität bei Sand unter monotoner und zyklischer Belastung, Marius Milatz Mehrphasen-Modell zur Simulation von Suffosion, Heike Pfletschinger-Pfaff, Jan Kayser, Holger Steeb Experimentelle Ermittlung intergranularer Kräfte unter Nutzung von 2D-DIC, Max Wiebicke, Edward Andò, Denis Caillerie, Gioacchino Viggiani Systeme paralleler Scherbänder - Experimentelle und analytische Untersuchungen, Lars Röchter Rechnerischer Stabilitätsnachweis für verflüssigungsgefährdete Standorte, Nándor Tamáskovics Untersuchung des Einflusses von Gaseinschlüssen unterhalb des Grundwasserspiegels auf Druckausbreitung und Bodenverformungen mittels gekoppelter FE-Berechnungen, Hector Montenegro, Oliver Stelzer Zeitabhängige Setzungen von Sand und FE-Simulationen einer Tagebaukippe, Stefan Vogt, Emanuel Birle, Gero Vinzelberg Über die Berücksichtigung großer Bodendeformationen in numerischen Modellen, Daniel Aubram Die Gefrierkernmethode - Weiterentwicklung des Erkundungsverfahrens zur geohydraulischen Charakterisierung von Sohlsedimenten, Daniel Straßer, Hermann-Josef Lensing, Dominik Richter, Simon Frank, Nico Goldscheider Nutzung von Verfahren der Bildanalyse zur Baugrundbeurteilung, Markus Wacker, Thomas Neumann, Jens Engel, Gunter Gräfe Anwendung von Elektroosmose zur Reduzierung des Herausziehwiderstandes von Spundwänden: Großmaßstäbliche Modellversuche in Ton, Christos Vrettos, Kai Merz Zementfiltration bei der Herstellung von Verpressankern in nichtbindigen Böden, Xenia Stodieck, Thomas Benz Modell- und Elementversuche zur Bodenverflüssigung, Erik Schwiteilo, Ivo Herle Dynamische Probebelastung einer Mikropfahlgründung - Feldversuch und dynamische 3D-FE-Simulation mittels Hypoplastizität, Thomas Meier, Jens Jähnig, Sina Meybodi Numerische und analytische Berechnungen zur Erdbebenbemessung von Böschungen, Hassan AlKayyal
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Sleiman, Maya. "2D Modelling of Geosynthetically Reinforced Piled Embankments : Calibration Methods in PLAXIS 2D & Review of Analytical Guidelines." Thesis, KTH, Jord- och bergmekanik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-291424.

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This thesis focuses on the 2D modelling of Geosyntheticaly Reinforced Piled Embankments (GRPE) in PLAXIS 2D. In doing so, it explores two main aspects: 1) the calibration of Interface Stiffness Factors (ISFs) governing the soil-pile interaction of Embedded BeamRow (EBR) elements in PLAXIS 2D, and 2) the prospects and limitations of modelling geogrids (GR) in PLAXIS 2D when underlain by EBR elements; although several studies have validates the EBR element in modelling piles, none address the geogrid-EBR interaction and its implications on modelling GRPE systems. The thesis performs the calibration and validation processes using the full-scale GRPE structure ASIRI (Amélioration des Sols parInclusions Rigide) as documented in Briançon and Simon, 2012 and Nunez et al., 2013. Calibration of the EBR’s ISFs is done against 1) load-displacement curve of a test pile, 2)load-displacement of the structure’s monitored piles, and 3) differential soil-pile settlement. Model results for soil settlement, pile settlement, and pile load are then compared to reported values from the ASIRI site. Results show that the natural deviation between the structure and test pile’s load - displacement results in a wide range of possible calibration values for the ISFs, making calibration based on a test pile’s load-displacement curve an unpractical method. Even when such natural deviations were eliminated by calibrating the model against the structure’s reported values for pile load-displacement, model predictions for subsoil displacement were compromised. It is thus advisable to calibrate the EBR element with respect to soil settlement, pile settlement, and pile load rather than solely on a load-displacement curve as to avoid high divergences in soil-pile differential settlement. Modelling geogrids in GRPE systems, PLAXIS 2D underestimates GR strain due to its inability to simulate GR deflection: EBR elements are superimposed on top of a continuous soil mesh, thus allowing the embankment soil to settle through the EBR element. This unrealistically minimizes GR deflection, which underestimates GR strain when modelling GRPEs in PLAXIS 2D. In addition to validating the 2D modelling of GRPE systems, the thesis conducts a comparative literature review of GRPE design guidelines, focusing on the British BS8006 (2010), the German EBGEO (2011), and the Dutch CUR226 (2016). It then applies the latter two to the ASIRI full scale case study and compares results for predicted maximum GR strainand displacement to those from the PLAXIS 2D model and ASIRI measurements. The literature review shows that the geogrid load distribution is highly dependent on the state of subsoil support, where a uniform distribution is more appropriate for high subsoil support, and an inverse-triangular one more appropriate for low subsoil support. However, the analytical analysis of the ASIRI case shows that the triangular distribution, previously dismissed as unrealistic by the literature review, gives satisfactory results due to a combination of soil sliding and high subsoil support at the ASIRI site.
Examensarbetet utvärderar 2D modellering av bankpålning med geosyntetisk armering (Geosyntheticallt Reinforced Piled Embankments – GRPE) i PLAXIS 2D. Examensarbetet utforskar två huvudaspekter: 1) kalibrering av Interface Stiffness Factors (ISFs) som styrjord-påle samspelet av Embedded Beam Row (EBR) element i PLAXIS 2D, och 2) möjligheter och begränsningar vid modellering av geonät i PLAXIS 2D när de ligger över EBR element. Även om flera studier har validerat användningen av EBR element för modelleringenav pålning, har inga behandlat samspelet geonät-EBR samt dess implikationer på modelleringen av GRPE. I arbetet har kalibrerings- och valideringsprocesser genomförts genom att använda den fullskaliga GRPE strukturen ASIRI (Amélioration des Sols par Inclusions Rigide) som dokumenterats i Briançon och Simon(2012) samt Nunez et al. (2013). Kalibrering av EBR ISFshar utförts mot: 1) last/förskjutningssamband av testpålar, 2) last/förskjutningssambad av övervakade pålar i strukturen, och 3) jord-påle differenssättningen. Modellens resultat försättningar i jorden, deformation i pålarna och lasten i pålarna jämförs med mätningar från ASIRI. Resultaten visar att naturliga avvikelser mellan strukturens- och testpålens last/förskjutningssambad resulterar i ett brett spektrum av möjliga kalibreringsvärden för ISFs, som gör kalibrering mot testpålens last/förskjutningssambad opraktisk. Även vid justering för detta genom kalibrering mot strukturpålens last/förskjutningssambad minskade modellens noggrannhet för sättningar i jorden. Det är således lämpligt att kalibrera EBR element motsättningar i jorden, deformation i pålarna och lasten i pålarna i stället för bara last/förskjutningssambaden för att undvika hög divergens i differenssättningen jord-påle. Vid modellering av GRPE-geonät underskattar PLAXIS 2D töjningen i geonäten på grund av sin oförmåga att simulera geonätens utböjning. EBR element ligger över ett kontinuerligt beräkningsnät av jord (soil mesh) som tillåter bankfyllningen att sätta genom EBRelement. Detta förhindrar utböjningen i geonätet som resulterar i en underskattning av töjningen i nätet vid modellering av GRPE i PLAXIS 2D. Förutom validering av 2D modelleringen av GRPE strukturer utför examensarbetet en jämförande literaturstudie av GRPE dimensioneringsriktlinjer med fokus på Brittisk BS8006 (2010), Tysk EBGEO (2011), och Nederländsk CUR226 (2016). De två sista nämnda riktlinjerna tillämpas på ASIRI för att prognosticera maximum geonättöjning och utböjning. Beräkningsresultat jämförs med värden från PLAXIS 2D modellen och mätningar från ASIRI. Litteraturstudien visar att geonätens belastningsfördelning är beroende främst på stödet från den underliggande jorden. Likformig belastningsfördelningen är lämpligare för en hög stödnivå och en invers-triangulär belastningsfördelningen för en låg stödnivå. Dock visar den analytiska analysen av ASIRI strukturen att en triangulär belastningsfördelning, som ansågs vara orealistisk i litteraturstudien, ger tillfredsställande resultat. Det är på grund av kombinationen av ’jordensglidning’ och hög stödnivå från den underliggandejorden i ASIRI:s fall.
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Books on the topic "Geotechnické metody"

1

Griffiths, D. V., and Gordon A. Fenton, eds. Probabilistic Methods in Geotechnical Engineering. Vienna: Springer Vienna, 2007. http://dx.doi.org/10.1007/978-3-211-73366-0.

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László, Rétháti. Probabilistic solutions in geotechnics. Budapest: Akadémiai Kisdó, 1988.

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Probabilistic solutions in geotechnics. Amsterdam: Elsevier, 1988.

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László, Rétháti. Probabilistic solutions in geotechnics. Amsterdam: Elsevier, 1988.

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Shehata, Hany, and Chandrakant S. Desai, eds. Advances in Numerical Methods in Geotechnical Engineering. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-01926-6.

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Cividini, Annamaria, ed. Application of Numerical Methods to Geotechnical Problems. Vienna: Springer Vienna, 1998. http://dx.doi.org/10.1007/978-3-7091-2512-0.

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The geotechnics of real materials: The [epsilon] g̳, [epsilon] k̳ method. Amsterdam: Elsevier, 1985.

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Conference on Probabilistic Methods in Geotechnical Engineering (1993 Canberra, A.C.T.). Probabilistic methods in geotechnical engineering: Proceedings of the Conference on Probabilistic Methods in Geotechnical Engineering, Canberra, Australia, 10-12 February 1993. Rotterdam: A.A. Balkema, 1993.

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Hanrahan, E. T. The geotechnics of real materials, the Eg, Ek method. Amsterdam: Elsevier, 1985.

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Lidija, Zdravković, ed. Finite element analysis in geotechnical engineering. London: Thomas Telford, 2001.

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Book chapters on the topic "Geotechnické metody"

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Kesimal, Ayhan, Kadir Karaman, Ferdi Cihangir, and Bayram Ercikdi. "Excavatability Assessment of Rock Masses for Geotechnical Studies." In Advances in Civil and Industrial Engineering, 231–56. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-2709-1.ch006.

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The excavatability of rocks is of importance for the selection of suitable and cost–effective excavation methods not only in mining and quarrying but also in the construction of tunnels, subways, highways and dams. Moreover, selection of the right excavation method and equipment in mining and geotechnical projects depends on the excavatability properties of rocks. A number of different methods have been proposed to evaluate the excavatability of rocks based on their geotechnical properties, such as rock mass rating (RMR), uniaxial compressive strength (UCS), discontinuity spacing of rock masses, point load index (PLI) and seismic velocity of intact rock. The type of equipment used and the method of working also affect the excavatability of rocks. In this work, the term excavatability is considered as the ease of excavation of rock and rock masses and comprises the methods of digging, ripping, breaking and blasting for easy/very easy, moderate to difficult, soft or moderately to highly fractured rock and very difficult excavation conditions, respectively.
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"Environmental geotechnics." In Computer Methods and Recent Advances in Geomechanics, 1629. CRC Press, 2014. http://dx.doi.org/10.1201/b17435-287.

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"approximation method." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 60. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_12353.

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"makeshift method." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 836. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_130325.

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"MacGeorge’s method." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 829. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_130007.

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"Hirschback method." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 681. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_81105.

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"ice method." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 711. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_90125.

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"imbibometric method." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 717. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_90378.

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"hydrometallurgical method." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 704. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_82029.

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"hydrographic method." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 702. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_81966.

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Conference papers on the topic "Geotechnické metody"

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Rossi, Nicola, and Meho-Saša Kovačević. "Statistical methods in geotechnics." In 4th Symposium on Doctoral Studies in Civil Engineering. University of Zagreb Faculty of Civil Engineering, 2018. http://dx.doi.org/10.5592/co/phdsym.2018.03.

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Suzuki, Yusuke, and Rune Dyvik. "Comparisons of Two Reconstitution Methods for Clay Specimens." In Geotechnical Frontiers 2017. Reston, VA: American Society of Civil Engineers, 2017. http://dx.doi.org/10.1061/9780784480472.037.

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Karatzia, Xenia, and George Mylonakis. "GEOTECHNICAL SEISMIC ISOLATION USING EPS GEOFOAM AROUND PILES." In 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering Methods in Structural Dynamics and Earthquake Engineering. Athens: Institute of Structural Analysis and Antiseismic Research School of Civil Engineering National Technical University of Athens (NTUA) Greece, 2017. http://dx.doi.org/10.7712/120117.5475.17924.

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Dreyer, C. B., O. R. Walton, Dan Scheld, Terry Gamber, Logan Knowles, David Hall, and Jefferey Hayden. "Evaluating Geotechnical Characterization Methods for NEOs." In Earth and Space 2014. Reston, VA: American Society of Civil Engineers, 2015. http://dx.doi.org/10.1061/9780784479179.004.

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Menq, Farnyuh, Shin Tower Wang, and William Isenhower. "Applications of the Continuous Wavelet Transform Method in Crosshole Sonic Logging Tests." In Geotechnical Frontiers 2017. Reston, VA: American Society of Civil Engineers, 2017. http://dx.doi.org/10.1061/9780784480465.018.

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Lingwall, Bret N., Byron Foster, Omololu Ogunseye, and James Gingery. "A Robust Method for a Lateral Loading Analysis of Large Diameter Piles." In Geotechnical Frontiers 2017. Reston, VA: American Society of Civil Engineers, 2017. http://dx.doi.org/10.1061/9780784480465.019.

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Rubin, Aaron J., and Carlton L. Ho. "A Review of Two Methods to Model the Thermal Conductivity of Sands." In Geotechnical Frontiers 2017. Reston, VA: American Society of Civil Engineers, 2017. http://dx.doi.org/10.1061/9780784480472.085.

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Stephenson, Ruth, Gabriel Chilala, and Owen Watson. "Establishing geotechnical processes for improved mine design at Bulyanhulu." In International Seminar on Design Methods in Underground Mining. Australian Centre for Geomechanics, Perth, 2015. http://dx.doi.org/10.36487/acg_rep/1511_11_stephenson.

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Kermani, Elnaz, and Tong Qiu. "Simulation of Seepage through Fixed Porous Media Using the Smoothed Particle Hydrodynamics Method." In Geotechnical Frontiers 2017. Reston, VA: American Society of Civil Engineers, 2017. http://dx.doi.org/10.1061/9780784480472.074.

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Oh, Hyunjun, and James M. Tinjum. "Comparison of Two Laboratory Methods for Measuring the Critical Temperature of Sandy Soils." In Geotechnical Frontiers 2017. Reston, VA: American Society of Civil Engineers, 2017. http://dx.doi.org/10.1061/9780784480472.086.

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Reports on the topic "Geotechnické metody"

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Fritz, Bradley G., Douglas McFarland, William Hertz, and Jeffrey Gamey. Application of Magnetic and Geotechnical Methods for Archaeological Site Investigations. Fort Belvoir, VA: Defense Technical Information Center, July 2011. http://dx.doi.org/10.21236/ada551819.

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