基于凯瑟效应的小厂坝矿区地应力分布规律研究  

Study on stress distribution law of in Xiaochangba mining area based on Kaiser effect

作　　者：焦满岱[1] 刘涛[1,2] JIAO Mandai;LIU Tao(Northwest Institute of Mining and Metallurgy,Baiyin 730900,China;School of Civil and Resource Engineering,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]西北矿冶研究院,甘肃白银730900 [2]北京科技大学土木与资源工程学院,北京100083

出　　处：《中国矿业》2019年第3期161-165,共5页China Mining Magazine

摘　　要：正确掌握矿区地应力分布规律对于深井开采过程中如何合理选择巷道布置方式、巷道断面形状、采场推进方向、支护形式、支护参数、开采顺序、顶板管理方法等有重要意义。本文采用AE法对小厂坝深部地应力进行了测量,掌握深部地应力的方向、大小和分布规律,测量结果显示:小厂坝矿区深部地应力较大,属于高应力状态,地应力随开采深度的增加呈增大趋势,在深部矿体开采过程中,应加强地压监测,合理布置采矿工程。It is great significance to correctly understand the law of distribution of ground stress in mining area for how to reasonably choose the layout of roadway,the shape of roadway section,the direction of stope movement,the form of support,the supporting parameters,the order of mining,and the method of roof management.This paper used AE method to measure the stress of the Xiaochangba mine,and the direction,size and distribution law of the deep stress was measured.The measurement results showed that the deep stress in the Xiaochangba mining area was relatively high,and it belongs to a high stress state.The increase in depth showed an increasing trend.During the mining of deep ore bodies,ground pressure monitoring should be strengthened and mining projects should be rationally arranged.

关 键 词：声发射 凯瑟效应 地应力 深部开采 地压监测 

分 类 号：TU459.4[建筑科学—岩土工程]