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Letteratura scientifica selezionata sul tema "Seismic refraction method"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 31 luglio 2024

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Articoli di riviste sul tema "Seismic refraction method"

1

Aldridge, David F., and Douglas W. Oldenburg. "Refractor imaging using an automated wavefront reconstruction method." GEOPHYSICS 57, no. 3 (March 1992): 378–85. http://dx.doi.org/10.1190/1.1443252.

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The classical wavefront method for interpreting seismic refraction arrival times is implemented on a digital computer. Modern finite‐difference propagation algorithms are used to downward continue recorded refraction arrival times through a near‐surface heterogeneous velocity structure. Two such subsurface traveltime fields need to be reconstructed from the arrivals observed on a forward and reverse geophone spread. The locus of a shallow refracting horizon is then defined by a simple imaging condition involving the reciprocal time (the traveltime between source positions at either end of the

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2

Alsamarraie, Mundher. "SEISMIC REFRACTION METHOD IN THE DETERMINATION OF SITE CHARACTERISTICS." Iraqi Geological Journal 53, no. 2D (October 31, 2020): 53–63. http://dx.doi.org/10.46717/igj.53.2d.4ms-2020-10-26.

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Preliminary site properties need geophysical methods to determine it, the same as the large use of the seismic refraction method to detect the layers of soil and the depth reaching the bedrock. This study was conducted to find out the subsurface profile characteristics of a backyard field in UTM, Skudai following the principles of this method. The analysis of seismic data processed using ZondST2D software by determining the first arrival time until we get a block model of 2D shape based on the primary propagation of seismic velocity wave’s in soil layers. It was found that the investigated sub

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3

Salim, Ashadi. "Analisis Data Seismik Refraksi dengan Metode Generalized-Reciprocal." ComTech: Computer, Mathematics and Engineering Applications 3, no. 1 (June 1, 2012): 162. http://dx.doi.org/10.21512/comtech.v3i1.2397.

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The analysis of seismic refraction data by the generalized reciprocal method can be used for delineating undulating refractors. The forward and reverse times of arrival at different geophones with XY distance along a refraction profile, are used for calculating time depth. The seismic wave velocity in refractor may be obtained from velocity analysis function, and the depth of refractor under each geophone is obtained from time-depths function. This method has been applied at one line of seismic refraction measurement that was 440 m long with 45 geophone positions. The measurement obtained 20 m

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4

Herlambang, N., and A. Riyanto. "Determination of bedrock depth in Universitas Indonesia using the seismic refraction method." IOP Conference Series: Earth and Environmental Science 846, no. 1 (September 1, 2021): 012016. http://dx.doi.org/10.1088/1755-1315/846/1/012016.

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Abstract The seismic refraction method is used to determine the exact bedrock depth for placing a foundation pole. The study was conducted in Universitas Indonesia precisely at the Fasilkom Universitas Indonesia complex. The seismic survey configuration consists of 24 geophone channels with a length of 67.5 m, geophone intervals of 2.5 m, and near offset of 10 m. The wave source was generated using a hammer, and the distance between blows was 5 m. The secondary data used was geological data from SPT (Soil Penetration Test) borehole as a reference for comparison of seismic survey results. Seism

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Herlambang, N., and A. Riyanto. "Determination of bedrock depth in Universitas Indonesia using the seismic refraction method." IOP Conference Series: Earth and Environmental Science 846, no. 1 (September 1, 2021): 012016. http://dx.doi.org/10.1088/1755-1315/846/1/012016.

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Abstract (sommario):

Abstract The seismic refraction method is used to determine the exact bedrock depth for placing a foundation pole. The study was conducted in Universitas Indonesia precisely at the Fasilkom Universitas Indonesia complex. The seismic survey configuration consists of 24 geophone channels with a length of 67.5 m, geophone intervals of 2.5 m, and near offset of 10 m. The wave source was generated using a hammer, and the distance between blows was 5 m. The secondary data used was geological data from SPT (Soil Penetration Test) borehole as a reference for comparison of seismic survey results. Seism

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6

Shen, Yang, and Jie Zhang. "Refraction wavefield migration." GEOPHYSICS 85, no. 6 (October 22, 2020): Q27—Q37. http://dx.doi.org/10.1190/geo2020-0141.1.

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Refraction methods are often applied to model and image near-surface velocity structures. However, near-surface imaging is very challenging, and no single method can resolve all of the land seismic problems across the world. In addition, deep interfaces are difficult to image from land reflection data due to the associated low signal-to-noise ratio. Following previous research, we have developed a refraction wavefield migration method for imaging shallow and deep interfaces via interferometry. Our method includes two steps: converting refractions into virtual reflection gathers and then applyi

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7

Aka, Mfoniso U., Okechukwu E. Agbasi, Johnson C. Ibuot, and Mboutidem D. Dick. "ASSESSING THE SUSCEPTIBILITY OF STRUCTURAL COLLAPSE USING SEISMIC REFRACTION METHOD." Earth Science Malaysia 4, no. 2 (September 10, 2020): 140–45. http://dx.doi.org/10.26480/esmy.02.2020.140.145.

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Seismic refractive survey is a very important geophysical technique used to investigate the characteristics of the subsurface. The rate of building collapse has demanded the acquaintance about the structure of the subsurface especially in area where lands are recovered from water bodies for the aim of building. This paper presents the technique used in determining the thickness of the overburden for quarry prospecting using a geophysical method called as seismic refraction method. Seismic refraction method was used to delineated two distinct layers with the first layer having a weak and incomp

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8

Mikesell, T. Dylan, Kasper van Wijk, Elmer Ruigrok, Andrew Lamb, and Thomas E. Blum. "A modified delay-time method for statics estimation with the virtual refraction." GEOPHYSICS 77, no. 6 (November 1, 2012): A29—A33. http://dx.doi.org/10.1190/geo2012-0111.1.

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Topography and near-surface heterogeneities lead to traveltime perturbations in surface land-seismic experiments. Usually, these perturbations are estimated and removed prior to further processing of the data. A common technique to estimate these perturbations is the delay-time method. We have developed the “modified delay-time method,” wherein we isolate the arrival times of the virtual refraction and estimate receiver-side delay times. The virtual refraction is a spurious arrival found in wavefields estimated by seismic interferometry. The new method removes the source term from the delay-ti

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Lankston, Robert W., and Marian M. Lankston. "Obtaining multilayer reciprocal times through phantoming." GEOPHYSICS 51, no. 1 (January 1986): 45–49. http://dx.doi.org/10.1190/1.1442038.

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A critical parameter in interpreting seismic refraction data with the generalized reciprocal method (GRM) is the reciprocal time, which must be available for each layer from which refracted rays return to the surface. The reciprocal time can be measured in the field, but this requires special equipment or procedures. Shooting to obtain the reciprocal time from each layer along a long seismic line may be operationally impractical. However, the method of phantoming arrivals overcame the problems. In phantoming, a reciprocal time is actually measured along any length of the seismic refraction lin

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Palmer, Derecke. "The measurement of weak anisotropy with the generalized reciprocal method." GEOPHYSICS 65, no. 5 (September 2000): 1583–91. http://dx.doi.org/10.1190/1.1444846.

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Anisotropy parameters can be determined from seismic refraction data using the generalized reciprocal method (GRM) for a layer in which the velocity can be described with the Crampin approximation for transverse isotropy. The parameters are the standard anisotropy factor, which is the horizontal velocity divided by the vertical velocity, and a second poorly determined parameter which, for weak anisotropy, is approximated by a linear relationship with the anisotropy factor. Although only one anisotropy parameter is effectively determined, the second parameter is essential to ensure that the ani

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Tesi sul tema "Seismic refraction method"

1

Valle, G. Raul del. "Model parameterization in refraction seismology." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66057.

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2

Rumpfhuber, Eva-Maria. "An integrated analysis of controlled-and passive source seismic data /." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2008. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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3

Samson, Claire. "Recording the Kapuskasing pilot reflection survey with refraction instruments : a feasibility study." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66063.

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4

Palmer, Derecke School of Geology UNSW. "Digital processing of shallow seismic refraction data with the convolution section." Awarded by:University of New South Wales. School of Geology, 2001. http://handle.unsw.edu.au/1959.4/19275.

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The refraction convolution section (RCS) is a simple and efficient method for full trace processing of shallow seismic refraction data. It facilitates improved interpretation of shallow seismic refraction data through the convenient use of amplitudes as well as traveltimes. The RCS is generated by the convolution of forward and reverse shot records. The convolution operation effectively adds the first arrival traveltimes of each pair of forward and reverse traces and produces a measure of the depth to the refracting interface in units of time which is equivalent to the time-depth function of t

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5

Harsha, Senusi Mohamed. "Interpretation of Southern Georgia coastal plain velocity structure using refraction and wide-angle reflection methods." Thesis, Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/25886.

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6

O'Brien, Simon. "Interpretation of a seismic refraction profile from the Richardson Mountains, Yukon territory." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/29692.

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In March of 1987, the Geologic Survey of Canada conducted a major seismic refraction experiment in the Mackenzie Delta-Southern Beaufort Sea-Northern Yukon area. This study involves the analysis of a portion of the resulting data set. A 2D velocity profile through the Richardson Mountains of the northern Yukon has been constructed using raytracing to model the travel-times and amplitudes. The line is approximately 320 km long, running from a shotpointon the Eagle Plains in the south to one 50 km offshore in Mackenzie Bay to the north, with an average receiver spacing of 3.5 km. An additional s

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Sen, Ashok Kumar. "Removing near-surface effects in seismic data : application for determination of faults in the Coastal Plain sediments /." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-03022010-020215/.

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8

Jiao, Lingxiu. "Imaging of the Sudbury Structure, Ontario, Canada, using the seismic reflection and refraction method." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ62644.pdf.

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Heimgartner, Michelle N. "The geophysical structure of the Sierra Nevada crustal root." abstract and full text PDF (free order & download UNR users only), 2007. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1442856.

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Dufour, Jocelyn. "Refraction static analysis of P-S seismic data using the plus-minus time analysis method." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq20824.pdf.

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Libri sul tema "Seismic refraction method"

1

Heigold, Paul C. Seismic reflection and seismic refraction surveying in northeastern Illinois. Champaign, Ill. (615 E. Peabody Dr., Champaign 61820): Illinois State Geological Survey, 1990.

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2

ten, Brink Uri S., and Geological Survey (U.S.), eds. Los Angeles Region Seismic Experiment (LARSE), California: Off-shore seismic refraction data. [Reston, Va.]: U.S. Dept. of the Interior, U.S. Geological Survey, 1996.

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3

Lavergne, M. Seismic methods. Paris: Editions Technip, 1989.

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Lavergne, M. Seismic methods. London: Graham & Trotman, 1989.

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5

E, Magner J., United States. Defense Nuclear Agency, United States. Dept. of Energy. Nevada Operations Office, and Geological Survey (U.S.), eds. A portable vacuum hammer seismic source for use in tunnel environments. Denver, Colo: U.S. Dept. of the Interior, Geological Survey, 1993.

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6

M, Epinatʹeva A., ed. Metod prelomlennykh voln. Moskva: "Nedra", 1990.

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7

S, Fuis Gary, and Geological Survey (U.S.), eds. Empirical relationship among shot size, shotpoint site condition, and recording distance for 1984-1987 U.S. Geological Survey Seismic-Refraction Data. [Menlo Park, CA]: U.S. Geological Survey, 1989.

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8

V, Timoshin I͡U. Seĭsmicheskai͡a golografii͡a slozhnopostroennykh sred. Moskva: "Nedra", 1989.

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9

S, Fuis Gary, and Geological Survey (U.S.), eds. Empirical relationship among shot size, shotpoint site condition, and recording distance for 1984-1987 U.S. Geological Survey Seismic-Refraction Data. [Menlo Park, CA]: U.S. Geological Survey, 1989.

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10

Douglas, Catchings Rufus, ed. Data report for the 1984 U.S. Geological Survey central Columbia Plateau seismic refraction experiment, Washington--Oregon. [Menlo Park, CA]: U.S. Geological Survey, 1988.

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Capitoli di libri sul tema "Seismic refraction method"

1

Zelt, Colin A. "Seismic refraction methods." In Engineering Geophysics, 107–16. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003184676-10.

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2

Crutchley, Gareth J., and Heidrun Kopp. "Reflection and Refraction Seismic Methods." In Submarine Geomorphology, 43–62. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-57852-1_4.

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El-Kelani, Radwan, and Abdelhaleem Khader. "Refraction Seismic Study Over a Proposed Landfill Site in South West Bank, Palestine." In On Significant Applications of Geophysical Methods, 99–101. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-01656-2_22.

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Farfour, Mohammed, and Talal Al-Hosni. "Application of Seismic Refraction Tomography to Map Bedrock: A Case Study from Al-Amrat, Oman." In On Significant Applications of Geophysical Methods, 103–6. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-01656-2_23.

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5

Nowack, Robert L. "Applications of Inverse Methods to the Analysis of Refraction and Wide-Angle Seismic Data." In Inverse Problems in Wave Propagation, 395–417. New York, NY: Springer New York, 1997. http://dx.doi.org/10.1007/978-1-4612-1878-4_20.

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Mohamed, Adel, Hosni Ghazala, and Hany Mesbah. "Effectiveness of DC Resistivity Imaging and Shallow Seismic Refraction Techniques Around El Giza-Pyramid Plateau, Egypt." In On Significant Applications of Geophysical Methods, 57–59. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-01656-2_12.

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Hall, M. V. "Depth Variation of Acoustic Horizontal Refraction through a Cold-Core Ocean Eddy." In Full Field Inversion Methods in Ocean and Seismo-Acoustics, 267–72. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-015-8476-0_43.

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Chinedu, Ani. "Application of Varying Geometric Spreads in Seismic Refraction Studies to Characterize the Overburden Strata on the Flanks of Zaria Dam, Northwestern Nigeria." In On Significant Applications of Geophysical Methods, 117–19. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-01656-2_26.

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"(seismic) refraction method." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 1194. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_191817.

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"Seismic Exploration: The Refraction Method." In Introduction to Applied Geophysics, 65–148. Cambridge University Press, 2023. http://dx.doi.org/10.1017/9781009433112.005.

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Atti di convegni sul tema "Seismic refraction method"

1

Khosrojerdi, Mehdi, and H. R. SiahKoohi. "Refraction Interferometery Reciprocal Method (RIRM) for Seismic Refraction Data analysis." In First International Conference on Engineering Geophysics. Netherlands: EAGE Publications BV, 2011. http://dx.doi.org/10.3997/2214-4609.20144003.

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Hanafy, Sherif M. "Seismic Refraction Interpretation Using Finite Difference Method." In Symposium on the Application of Geophysics to Engineering and Environmental Problems 2005. Environment and Engineering Geophysical Society, 2005. http://dx.doi.org/10.4133/1.2923415.

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Holst, Roger, Stephen Jumper, and Howell Pardue. "An interactive seismic refraction statics correction method." In 1985 SEG Technical Program Expanded Abstracts. SEG, 1985. http://dx.doi.org/10.1190/1.1892672.

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M. Hanafy, Sherif. "Seismic Refraction Interpretation Using Finite Difference Method." In 18th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems. European Association of Geoscientists & Engineers, 2005. http://dx.doi.org/10.3997/2214-4609-pdb.183.1012-1024.

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Stanic, S. "Use of seismic refraction method in environmental geophysics." In 3rd EEGS Meeting. European Association of Geoscientists & Engineers, 1997. http://dx.doi.org/10.3997/2214-4609.201407338.

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Seisa, H. H. "The Common Refractor Element ‐CRE‐ method for interpretation of shallow refraction seismic data." In SEG Technical Program Expanded Abstracts 1996. Society of Exploration Geophysicists, 1996. http://dx.doi.org/10.1190/1.1826799.

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Hayashi, K. "Application of High Resolution Seismic Refraction Method to Civil Engineering." In 61st EAGE Conference and Exhibition. European Association of Geoscientists & Engineers, 1999. http://dx.doi.org/10.3997/2214-4609.201407812.

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Sule, M. R., and I. Dani. "Detection of Landslide Plane by Using Refraction Seismic Tomography Method." In Near Surface Geoscience 2015 - 21st European Meeting of Environmental and Engineering Geophysics. Netherlands: EAGE Publications BV, 2015. http://dx.doi.org/10.3997/2214-4609.201413694.

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Engelsfeld, T., F. Šumanovac, V. Krstic, and N. Pavin. "Investigation of Near-surface Anomalies Using the Refraction Seismic Method." In Near Surface 2010 - 16th EAGE European Meeting of Environmental and Engineering Geophysics. European Association of Geoscientists & Engineers, 2010. http://dx.doi.org/10.3997/2214-4609.20144912.

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Hunter, J. A., S. E. Pullan, and M. A. Lockhard. "A vertical seismic array method for shallow seismic refraction surveying of the sea floor." In SEG Technical Program Expanded Abstracts 1988. Society of Exploration Geophysicists, 1988. http://dx.doi.org/10.1190/1.1892228.

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Rapporti di organizzazioni sul tema "Seismic refraction method"

1

Goodwin, J. A., W. Jiang, A. J. Meixner, S. R. B. McAlpine, S. Buckerfield, M. G. Nicoll, and M. Crowe. Estimating cover thickness in the Southern Thomson Orogen: results from the pre-drilling application of refraction seismic, audio-magnetotelluric and targeted magnetic inversion modelling methods on proposed borehole sites. Geoscience Australia, 2017. http://dx.doi.org/10.11636/record.2017.021.

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