【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。更多还原

【Abstract】 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 measuring 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.更多还原