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《Chinese Journal of Geophysics》 2012-10
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An exact solution for 2-D Lamb problem of arbitrary direction source

SUN Cheng-Yu,ZHANG Li School of Geosciences,China University of Petroleum,Qingdao 266555,China  
The analytic solution of seismic wave field caused by surface or inner seismic source in homogeneous elastic half-space belongs to Lamb problems.With the Cagniard-deHoop method,we developed a Laplace-Fourier double integral transformed solution for a surface line source which is in arbitrary angle with horizontal plane on elastic half-space.Some quantitative relations of displacements of P-wave,S-wave,head wave and Rayleigh wave under(-impulse are shown,and the relationship between amplitudes is analyzed.A digital model is built and the results of wave equation modeling are used to verify the accuracy of the theoretical achievements.Due to the particularity of near surface,the achievement on arbitrary direction source provides theoretical foundation to wave filed analysis.
【Fund】: 国家科技重大专项(2011ZX05006-002);; 国家973课题(2013CB228604);; 中央高校基本科研业务费专项资金(09CX04009A)联合资助
【CateGory Index】: P315.33
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【Citations】
Chinese Journal Full-text Database 3 Hits
1 Wang Ke-cheng(Hunal Conputing Center) Wang Yi-sun(Hunan University);SURFACE DISPLACEMENT OF AN ELASTIC HALF-SPACE DUE TO A VERTICALLY BURIED POINT-SOURCE LOAD[J];Acta Mechanica Solida Sinica;1983-03
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 LI Pei-pei,HE Qiao-deng,XU Shan-hui College of GeoExploration Science and Technology,Jilin University,Changchun 130026,China;Bispectral Picking Moveout Parameter Fields[J];Journal of Jilin University(Earth Science Edition);2007-S1
2 ZHAO Luo-cheng①,LUO Zhi-cai①,WANG Dong-xiao②,WANG De-zheng②(①School of Geodesy and Geomatics,Wuhan University,Wuhan 430079,China;②Surveying and Mapping Institute of Sanya City,Sanya 572003,China);Analysis on frequency spectrum of residual error from A-10 absolute gravity meter[J];Science of Surveying and Mapping;2010-01
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7 Liu Guangyu Liu Kaixin(LTCS and Department of Mechanics & Department of Mechanics & Aerospace Engineering,College of Engineering,Peking University,Beijing,100871);EXACT SOLUTION FOR A TWO-DIMENSIONAL LAMB'S PROBLEM DUE TO A STRIP IMPULSE LOADING[J];Acta Mechanica Solida Sinica;2007-04
8 ZHENG Xin1,2,TAO Xia-xin1,WANG Fu-tong1,3(1.School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China;2.College of Engineering,Heilongjiang Bayi Agricultural University,Daqing 163319,China;3.School of Civil Engineering and Architecture,Heilongjiang University,Harbin 150001,China);Virtual inversion of vibration source parameters of wheel-rail impact[J];Journal of Harbin Institute of Technology;2010-08
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10 ZHAO Qing-xian(Guangzhou Marine Geological Survey,Guangzhou Guangdong 510760,China);Study on Array Length of Gas-Hydrate Semi-three Dimension Seismic Survey[J];Ocean Technology;2010-03
【Secondary Citations】
Chinese Journal Full-text Database 3 Hits
1 Zhang Hong-qing;A United Theory on General Solutions of Systems of Elasticity Equations[J];;1978-03
2 Wang Ke-cheng(Hunal Conputing Center) Wang Yi-sun(Hunan University);SURFACE DISPLACEMENT OF AN ELASTIC HALF-SPACE DUE TO A VERTICALLY BURIED POINT-SOURCE LOAD[J];Acta Mechanica Solida Sinica;1983-03
3 Zheng Jianlcng (Changsha Communications Institute);FUNDAMENTAL SOLUTIONS OF ELASTIC HALF-SPACE FOR DYNAMIC PROBLEMS[J];Acta Mechanica Solida Sinica;1988-01
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