利用岩石Kaiser效应对地应力的测试实验  

Experimental research on measurement of in-situ stress by using Kaiser effect

作　　者：张金航[1,2] 赵其华[1] 吕韬 罗永 刘玉斌[2] 

机构地区：[1]成都理工大学地质灾害防治与地质环境保护国家专业实验室,四川成都610059 [2]大庆钻探工程公司录井一公司,黑龙江大庆163411 [3]重庆地勘局南江水文地质工程地质队,重庆401147 [4]中油长城钻探公司国际钻修分公司,辽宁盘锦124010

出　　处：《西安科技大学学报》2010年第2期207-211,共5页Journal of Xi’an University of Science and Technology

摘　　要：介绍了利用岩石声发射Kaiser效应测试地应力的原理、方法以及测试技术,根据弹性力学理论推导出岩体测点处地应力方程。按6个特殊方向对所取岩样进行制取,并对岩样进行声发射测试,由此结果计算出单向正应力值和3个主应力的大小及方向。其实验研究结果可为工程提供借鉴和参考。The principle, method and techniques of Kaiser effect to measure initial stresses in rock are described. According to the elastic mechanics theory, the basic equation of ground stress at rock measur- ing point is derived. Through preparing samples on 6 special directions and experiment to observe acoustic emission, the unilateral plus stress values on each direction and their azimuth angles and obliquities of three principal stress directions are obtained. The results of the experiment are of reference for engineering project.

关 键 词：KAISER效应 地应力 声发射 岩石力学 

分 类 号：TU458.3[建筑科学—岩土工程]