节点文献
高密度电法在宜春市岩溶地质调查中的应用
The Application of High Density Electrical Method to Karst Geological Survey in Yichun City
【摘要】 灰岩分布区易发生地面塌陷等地质灾害 ,综合物探是岩溶地质调查的重要手段。岩溶灾害物探勘查的主要任务是划分可溶岩与非可溶岩界线、勘查基岩断裂及了解基岩岩溶发育等情况。高密度电法兼具电阻率剖面法与测深法的功能 ,其数据采集密度大、精度高的断面测量结果能较直观地反映地层及电性异常体的形态及纵、横向展布情况。因此 ,高密度电法在岩溶灾害调查中用于划分可溶岩区、勘查基岩断裂构造、了解基岩岩溶发育情况等方面能取得较好的效果。
【Abstract】 Limestone region is apt to the occurrence of karst collapse. Comprehensive physical exploration is an important mean for karst geological survey. The main tasks of karst geophysical exploration are:1) to detect the boundary of soluble rock and insoluble rock; 2) to indentify the bedrock fractures; and 3) to distinguish the karst distribution. High density electrical method possesses the functions of both electrical resistivity profile method and depth sounding method. The detected results of data characterized by large quantity and high precision reflect the strata property and the character and distribution of electrical abnormal body. Therefore, the application of high density electrical method to karst geological survey can obtain good results on detecting the boundary of soluble and insoluble rock, identifying bedrock structure and exploring the karst distribution.
【Key words】 high density electrical method; karst survey; boundary of insoluble and soluble rock; rock fracture;
- 【文献出处】 中国地质灾害与防治学报 ,The Chinese Journal of Geological Hazard and Control , 编辑部邮箱 ,2002年01期
- 【分类号】P642.25
- 【被引频次】118
- 【下载频次】659