地下岩层裂隙的几种勘察研究方法

Several methods for investigating crack in underground rock stratum

本文介绍了地下岩层裂隙的4种勘察研究方法:钻孔岩芯法、超声成像法、钻孔电视法、钻孔流量测井法。经过多项工程实践,我们认为超声成像法对钻孔孔壁扫描获得裂隙产状、开度等参数是研究地下岩层裂隙的有效方法。钻孔流量测井法也可研究裂隙,计算裂隙开度。

This paper introduces four kinds of mehtods that is used to investigate crack in underground rock stratum:borehole core method,ultrasonic imaging method,borehole television method,and borehole discharge well logging method.Through some examples,we think that the ultrasonic imaging method that can obtain some parameters of the crack attitude and the opening is an effective method in studying the crack of underground rock stratum.And the drill discharge well longing method can also be used in studying crack and calculating the opening.