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随着地下矿山的深部开采,采空场愈来愈多,规模也越来越大,并且不可避免地要通过地质条件不良地带,于是,采空场围岩发生破坏的现象屡见不鲜。甚至由于采空场的大规模坍塌,带来矿山井巷工程的开裂错动和地表下沉等影响。破坏学说是以应力或应变为础基的,而了解岩体的破坏现象又是有效设计矿山地下工程的先决条件,所以,研究岩体应力是矿山工程的一项极为重要的课题。一、地下矿山岩体应力的基本问题
With the deep mining of underground mines, more and more mined-out fields and larger and larger scales are inevitable, and inevitably they have to pass the bad geological conditions. Therefore, it is not uncommon for mined-out rock to be destroyed. Even due to the large-scale collapse of the mined-out field, it causes the cracking of the mine shaft and culvert and the surface subsidence. The theory of destructiveness is based on stress or strain. Understanding the destruction of rock mass is also a prerequisite for the effective design of underground engineering in mines. Therefore, studying the stress of rock mass is an extremely important issue in mine engineering. First, the basic problems of underground mine rock stress