地震横波勘探与联合剖面法在城市地质调查中的综合应用
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摘要
本文分别阐述了横波勘探与联合剖面法的工作原理,并详细阐述了反射横波勘探在浅地层特别是松散的浅表层勘探中比纵波具有更高分辨率的优势。并以珠三角某地城市环境地质调查工区作为试验区,采用反射横波勘探和联合剖面法两种物探方法进行,根据横波地震剖面以及联剖电阻率曲线划分了该区浅表层的地层分布特征以及咸水区与淡水区的界限,不但与钻孔资料能够完全吻合,而且两种资料在地层和咸、淡水界限划分上能够互相印证。
The operational principles of the S-wave seismic exploration and the resistivity composite profile are respectively expounded,and the reason that the vertical resolution of S-wave is higher than P-wave in the shallow seismic exploration is expressed.The S-wave seismic exploration and resistivity composite profile geophysical methods are used for urban geological survey in the Pearl River delta.The features of shallow strata are interpreted from the S-wave seismic profile and the borderline of the salt water and the freshwater in underground is compartmentalized by using the curves of resistivity composite profile.The results are not only suitable for the data of borehole,but also for these data from the two methods which could be mutually validated on the results.
The operational principles of the S-wave seismic exploration and the resistivity composite profile are respectively expounded,and the reason that the vertical resolution of S-wave is higher than P-wave in the shallow seismic exploration is expressed.The S-wave seismic exploration and resistivity composite profile geophysical methods are used for urban geological survey in the Pearl River delta.The features of shallow strata are interpreted from the S-wave seismic profile and the borderline of the salt water and the freshwater in underground is compartmentalized by using the curves of resistivity composite profile.The results are not only suitable for the data of borehole,but also for these data from the two methods which could be mutually validated on the results.
引文
[1]高建华,王正军,曾驿.准噶尔盆地深层弱反射地震勘探采集方法研究[J].江汉石油学院学报,2002,24(2):33～35.
[2]卢占武,高锐,李秋生.横过青藏高原羌塘地体中央隆起区的深反射地震试验剖面[J].地球物理学报,2009,(8):2008～2014.
[3]郑红波,阎贫.地震海洋学方法在研究南海东北部海水水体结构中的应用[J].地球物理学报,2010,53(8):1852～1858.
[4]柴铭涛,高景华.城市活断层探测中的反射地震数据采集和处理技术[J].物探与化探,2007,31(4):365～369.
[5]涂宏.视电阻率联合剖面在8971金矿的应用[J].汉中科技,2010,(3):58～60.
[6]卞兆津,叶明金,刘斌辉.红层地区综合应用联合剖面法和激发极化法找水一例[J].物探与化探,2008,32(3):306～307.
[7]李正文.高分辨率地震勘探[M].成都:成都科技大学出版社,1993.
[2]卢占武,高锐,李秋生.横过青藏高原羌塘地体中央隆起区的深反射地震试验剖面[J].地球物理学报,2009,(8):2008～2014.
[3]郑红波,阎贫.地震海洋学方法在研究南海东北部海水水体结构中的应用[J].地球物理学报,2010,53(8):1852～1858.
[4]柴铭涛,高景华.城市活断层探测中的反射地震数据采集和处理技术[J].物探与化探,2007,31(4):365～369.
[5]涂宏.视电阻率联合剖面在8971金矿的应用[J].汉中科技,2010,(3):58～60.
[6]卞兆津,叶明金,刘斌辉.红层地区综合应用联合剖面法和激发极化法找水一例[J].物探与化探,2008,32(3):306～307.
[7]李正文.高分辨率地震勘探[M].成都:成都科技大学出版社,1993.
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