摘要
应用无线电波透视法,对我国十多个大中型水利水电坝址的深部岩溶洞穴发育情况进行了探测和研究,先后圈定了许多岩溶洞穴异常和异常地段,为地质上选择坝线和工程上进行防渗处理提供了资料。其中有乌江渡水电站等坝址的透视成果已得到了验证,取得了较好的地质效果。文中着重介绍了一些应用实例。实践证明:透视法较之地面电法有不可比拟的一些优点,它是目前探测深部岩溶洞穴的最好的物探方法.在多年的实践中,也发现了该法在应用中存在着几个主要问题,影响了它在岩溶洞穴探测中的地质效果。
Radiowave penetration method has been applied to detect and study deep karst caverns in more than ten dam sites for large hydroelectric projects in China.Anomalies indicating caverns and anomalous areas have been delineated to provide data for selection of dam site and prevention treatment of percolation.Good geologic results have been obtained, for example the perspectives of dam site of the Wujiangdu Hydroelectric Station have been verified.
Some cases of application of the method are presented in this paper. Practice proved that radiowave penetration method has some imcom-parable advantages than surface geophysical methods, probably, it is the best measure to find deep karst caverns at present.
However, there still remain some problems in applications for years, which affect the geologic effectiveness in detecting karst caverns at depth.
出处
《中国岩溶》
CAS
CSCD
北大核心
1989年第2期156-162,共7页
Carsologica Sinica
