【摘要】 在矿山地下工程中 ,原岩应力是合理评价矿体开采过程中围岩稳定性的首要条件 ,是确定合理采场结构参数的基础条件之一。本文利用矿山已有巷道进行钻孔岩芯定向取样 ,在实验室进行声发射Kaiser效应的实验 ,获得矿区原岩应力。由于声发射效应实验测试方法具有简单、方便的优点 ,可大量进行 ,从而在矿山岩体应力测试及评价时可以普遍推广应用。更多还原

【Abstract】 In underground mining,the field stress is the most important factor for assesment of stability of wall rock during ore body excavation and the basis of proper determination of stope parameters.In this study,the sample was taken from existing workings by core drilling and tested with sonic emission Kaiser effect to determine the field stress.This method can be widely used in test and evaluation of field stress due to its advantages of simple and easy operation.更多还原