高密度电法数据处理结合钻孔波速测试在土洞发育区的应用实例  

The application of high-density resistivity method data processing combined with borehole wave velocity measurement in soil hole development area

作　　者：易强 李望明 景营利 帅焕 卞兆津 YI Qiang;LI Wangming;JING Yingli;SHUAI Huan;BIAN Zhaojin(No.416 Geological Party,Hunan Bureau of Geology and Mineral Exploration and Develonent,Zhuzhou 412003,China)

机构地区：[1]湖南省地质矿产勘查开发局四一六队,株洲412003

出　　处：《物探化探计算技术》2021年第1期104-107,共4页Computing Techniques For Geophysical and Geochemical Exploration

摘　　要：土洞是发育在可溶岩上覆土层中的空洞,尤其是对于灰岩等可溶岩地区,分布较为广泛,易引发地面塌陷,影响工程施工,是工程建筑设施的重要隐患。通过对高密度电法数据进行处理并抽取电测深曲线及结合钻孔波速测试,对土洞发育深度进行定量分析,能有效地对土洞进行勘查,取得了较好的效果。Soil cave is a hole developed in the overlying soil layer of the soluble rock.Especially for the limestone and other soluble rock areas,it is widely distributed and easy to cause ground collapse and affect the construction of the project.It is an important hidden danger of the engineering construction facilities.Although the analysis and interpretation of the data of the high-density resistivity method by sounding curves extracted from high density electrical data and combining with the borehole wave velocity test,the development depth of soil holes can be quantitatively analyzed.This can effectively investigate the soil holes and achieve good results.

关 键 词：高密度电法 电测深曲线 波速测试 土洞 地面塌陷 

分 类 号：P631.3[天文地球—地质矿产勘探]