层状巷道围岩稳定性的试验研究  

Experimental Study on Surrounding Rock Stability of Layered Roadway

作　　者：王洪建[1] 赵龙翔 李瑾 董金玉[1] 吴琦[1] 赵菲[1] 张一同 WANG Hongjian;ZHAO Longxiang;LI Jin;DONG Jinyu;WU Qi;ZHAO Fei;ZHANG Yitong(North China University of Water Resources and Electric Power,Zhengzhou 450046,China)

机构地区：[1]华北水利水电大学,河南郑州450046

出　　处：《华北水利水电大学学报（自然科学版）》2019年第2期90-96,共7页Journal of North China University of Water Resources and Electric Power：Natural Science Edition

基　　金：国家自然科学基金重点项目(U1704243);国家自然科学基金项目(41807254;41402269;41741019);河南省科技攻关项目(182102310714);深部岩土力学与地下工程国家重点实验室开放基金项目(SKLGDUEK1524);河南省高等学校重点科研项目(18A170008);华北水利水电大学高层次人才启动经费资助项目(40583;40467)

摘　　要：随着我国煤矿深部开采时代的来临,深部软岩层状巷道的稳定性问题越来越受到人们的关注。国内许多煤矿企业没有对深部巷道所处的复杂环境进行针对性的支护设计,从而产生了大大小小的安全问题。为了研究深部软岩巷道的变形及破坏规律,结合徐州矿区旗山矿的工程实际,制作了巷道物理模型,设计了不同地应力条件下的加载试验,成功模拟了深部煤岩体在自重应力和水平构造应力共同作用下的变形及破坏过程,并通过红外图像记录应力集中区域以及能量释放区域,形象再现了实际工程现场巷道两帮非对称变形、底鼓、冒落等破坏现象。研究内容可为深部层状软岩巷道稳定条件和支护方式的确定提供参考。With the coming of the age of deep coal mining in our country,the stability of deep soft rock roadway obtains a growing concern. Many coal mining enterprises in China have no specific design for complex environment of deep roadway,which has caused many safety problems. In order to study the deformation and failure laws of deep soft rock roadway,the physical roadway model was made and the loading experiment under different in-situ stress conditions was designed in combination with the actual engineering practice of Qishan Mine in Xuzhou. The deformation and failure process of deep coal rock mass under the joint action of gravity stress and horizontal tectonic stress were simulated successfully,and the stress concentration region and energy release area were recorded by IR picture.The phenomenon of asymmetric deformation,floor heave and caving in the actual engineering site was reproduced in this paper. The research results in this paper provide a reference for the stability conditions and supporting methods of deep layered soft rock roadway engineering.

关 键 词：层状 巷道围岩 稳定性 红外图像 

分 类 号：P554[天文地球—构造地质学]