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.
出处
《工程勘察》
CSCD
北大核心
2011年第12期72-76,共5页
Geotechnical Investigation & Surveying
基金
中国科学院广州天然气水合物研究中心开放基金项目(No.CASHYD07s2)
关键词
反射横波勘探
联剖法
地质调查
S-wave seismic exploration
resistivity composite profile
geological survey
