地震横波勘探及其在浅层岩土分层中的应用
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摘要
简单论述了横波的基本特点,指出在松散层勘探中,横波勘探的优势主要在于探测精度高且不受饱水度的影响.因此,可以选择地震横波勘探进行第四纪松散层层序划分及厚度探测.并以广州市城市地质调查项目为例,介绍了地震横波勘探在浅层地层勘测中的数据采集方法,分析了地质解释依据,并结合波速测井方法对地层层面进行了划分.分析结果表明了多数岩土层与反射界面有较好的对应关系,用地震横波勘探结合波速测井进行第四纪松散层层序划分及厚度探测是可行的.
This paper discusses basic characteristic of transverse wave and indicates that shear wave detection,which has high exploration precision and is not influenced by the degree of saturation,has advantage in unconsolidated strata as well as thickness detection.Therefore,seismic shear wave detection can be used to divide Quaternary unconsolidated strata.Based on the case of urban geologic survey in Guangzhou,the paper introduces data collection method used in shallow exploration in process of seismic transverse wave detection,and analyses the geologic explanation for results as well as divides the strata in this way coupled with method of well logging.The analysis shows that most of rock-soil strata have good corresponding relation to reflecting surface,and that seismic shear wave exploration method combined with well logging is feasible to divide Quaternary unconsolidated strata.
This paper discusses basic characteristic of transverse wave and indicates that shear wave detection,which has high exploration precision and is not influenced by the degree of saturation,has advantage in unconsolidated strata as well as thickness detection.Therefore,seismic shear wave detection can be used to divide Quaternary unconsolidated strata.Based on the case of urban geologic survey in Guangzhou,the paper introduces data collection method used in shallow exploration in process of seismic transverse wave detection,and analyses the geologic explanation for results as well as divides the strata in this way coupled with method of well logging.The analysis shows that most of rock-soil strata have good corresponding relation to reflecting surface,and that seismic shear wave exploration method combined with well logging is feasible to divide Quaternary unconsolidated strata.
引文
[1]陆基孟.地震勘探原理[M].东营:中国石油大学出版社,1993.Lu J M.The principle of seismic exploration[M].Dongying:China university of petroleum press,1993.
[2]王东,张海澜,王秀明.部分饱和孔隙岩石中声波传播数值研究[J].地球物理学报,2006,49(2):524~532.Wang D,Zhang H L,Wang X M.A numerical study of acous-tic wave propagation in partially saturated poroelastic rock[J].Chinese J.Geophys.,2006,49(2):524~532.
[3]王大兴,辛可锋,李幼铭,等.地层条件下砂岩含水饱和度对波速及衰减影响的实验研究[J].地球物理学报,2006,49(3):908~914.Wang D X,Xin K F,Li Y M,et al.An experimental studyof influence of water saturation on velocity and attenuation insandstone under stratum conditions[J].Chinese J.Geophys.,2006,49(3):908~914.
[4]施行觉,徐果明,靳平,等.岩石的含水饱和度对纵、横波速及衰减影响的实验研究[J].地球物理学报,1995,38(增1):281~287.Shi X J,Xu G M,Jin P,et al.The laboratory study of influ-ence of water saturation on rock’s velocity and attenuation[J].Chinese J.Geophys.,1995,38(supp.I):908~914.
[5]韩文功.地震技术新进展[M].东营:中国石油大学出版社,2005.Han W G.Progress in seismic technology[M].Dongying:China university of petroleum press,2005.
[6]张淑梅,杨国敏,王叔林.横波地震勘探技术在伊敏露天矿区勘探中的应用[J].煤炭技术,2004,23(10):82~84.Zhang S M,Yang G M,Wang S L.Application of SeismicShear Wave Detection in Yiming coal diggings[J].Coal Tech-nolog,2004,23(10):82~84.
[7]牛向东,李文勇,介伟.黄河大堤根石探测的地震SH横波方法研究[J].工程地球物理学报,2005,2(3):195~201.Niu X D,Li W Y,Jie W.Study on SH-wave detection meth-od of root stones along the yellow river dyke[J].Chinese J.ofEng.Geophys.,2005,2(3):195~201.
[8]张达敏,石瑞平.探索横波地震的理论误区[J].工程地球物理学报,2005,2(2):139~144.Zhang D M,Shi R P.Exploring misunderstandings of S-waveseismic theory[J].Chinese J.of Eng.Geophys.,2005,2(2):139~144.
[9]王旭高,朱正亚,李小虹,等.横波测井的原理和方法研究[J].地球物理学报,1995,38(3):387~395.Wang X G,Zhu Z Y,Li X H,et al.Study on the principleand method of shear wave logging[J].Chinese J.Geophys.,1995,38(3):387~395.
[2]王东,张海澜,王秀明.部分饱和孔隙岩石中声波传播数值研究[J].地球物理学报,2006,49(2):524~532.Wang D,Zhang H L,Wang X M.A numerical study of acous-tic wave propagation in partially saturated poroelastic rock[J].Chinese J.Geophys.,2006,49(2):524~532.
[3]王大兴,辛可锋,李幼铭,等.地层条件下砂岩含水饱和度对波速及衰减影响的实验研究[J].地球物理学报,2006,49(3):908~914.Wang D X,Xin K F,Li Y M,et al.An experimental studyof influence of water saturation on velocity and attenuation insandstone under stratum conditions[J].Chinese J.Geophys.,2006,49(3):908~914.
[4]施行觉,徐果明,靳平,等.岩石的含水饱和度对纵、横波速及衰减影响的实验研究[J].地球物理学报,1995,38(增1):281~287.Shi X J,Xu G M,Jin P,et al.The laboratory study of influ-ence of water saturation on rock’s velocity and attenuation[J].Chinese J.Geophys.,1995,38(supp.I):908~914.
[5]韩文功.地震技术新进展[M].东营:中国石油大学出版社,2005.Han W G.Progress in seismic technology[M].Dongying:China university of petroleum press,2005.
[6]张淑梅,杨国敏,王叔林.横波地震勘探技术在伊敏露天矿区勘探中的应用[J].煤炭技术,2004,23(10):82~84.Zhang S M,Yang G M,Wang S L.Application of SeismicShear Wave Detection in Yiming coal diggings[J].Coal Tech-nolog,2004,23(10):82~84.
[7]牛向东,李文勇,介伟.黄河大堤根石探测的地震SH横波方法研究[J].工程地球物理学报,2005,2(3):195~201.Niu X D,Li W Y,Jie W.Study on SH-wave detection meth-od of root stones along the yellow river dyke[J].Chinese J.ofEng.Geophys.,2005,2(3):195~201.
[8]张达敏,石瑞平.探索横波地震的理论误区[J].工程地球物理学报,2005,2(2):139~144.Zhang D M,Shi R P.Exploring misunderstandings of S-waveseismic theory[J].Chinese J.of Eng.Geophys.,2005,2(2):139~144.
[9]王旭高,朱正亚,李小虹,等.横波测井的原理和方法研究[J].地球物理学报,1995,38(3):387~395.Wang X G,Zhu Z Y,Li X H,et al.Study on the principleand method of shear wave logging[J].Chinese J.Geophys.,1995,38(3):387~395.
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