工程反射地震非常规方法野外施工的探讨

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A Study of Engineering Reflect Seismic with Unconventional Geometry Layout

WANG Zhe-jiang,HE Qiao-deng,TIAN Gang,ZENG Zhao-fa,XUE Jian

College of GeoExploration Science and Technology,Jilin University,Changchun 130026,China

Received:2005-03-01 Revised:1900-01-01 Online:2005-11-26 Published:2005-11-26
Contact: WANG Zhe-jiang

Abstract

Abstract: The conventional layout for CDP reflection survey in engineering geophysics, in which the receiving arrays and the shooting points are moving simultaneously, often causes lower efficiency. Based on the principle of common depth point, the authors present an unconventional geometry system in which only shooting points are moved. The geometry system is discussed in detail, and is also compared with the conventional layout. It is believed that not only increases the new geometry field work efficiency, but also could improve the data S/N ratio and the accuracy of velocity analysis. It can be applied in refraction seismology and multichannel analysis of surface waves（MASW）survey as well.

Key words: shallow reflection survey, geometry system of moving shooting points, conventional geometry system, common depth points（CDP）, stacking times

CLC Number:

Q914.81

WANG Zhe-jiang,HE Qiao-deng,TIAN Gang,ZENG Zhao-fa,XUE Jian. A Study of Engineering Reflect Seismic with Unconventional Geometry Layout[J].J4, 2005, 35(06): 796-0800.

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