构造应力作用下厚煤层巷道合理掘进层位及围岩控制研究  

Research on Reasonable Excavation Layer and Surrounding Rock Control of Thick Coal Seam Tunnels under Structural Stress

作　　者：柴亚栋 徐杰 毕青泉 李小龙 孙鑫 程敬义[2] 刘克臣 CHAI Yadong;XU Jie;BI Qingquan;LI Xiaolong;SUN Xin;CHENG Jingyi;LIU Kechen(Changzhi Sanyuanzhongneng Mining Industry Co.,Ltd.,Changzhi 046000,China;School of Mining Engineering,China University of Mining and Technology,Xuzhou 221000,China;Shanxi Zhengtong Mining Industry Co.,Ltd.,Xianyang 712000,China)

机构地区：[1]长治三元中能煤业有限公司,山西长治046000 [2]中国矿业大学矿业工程学院,江苏徐州221000 [3]陕西正通煤业有限责任公司,陕西咸阳712000

出　　处：《煤》2025年第1期11-17,共7页Coal

基　　金：国家自然科学基金面上项目(52274102)。

摘　　要：为解决厚煤层在构造应力作用下的支护问题,文章结合下霍煤矿2307工作面的地质条件,分别以沿厚煤层顶板、底板掘进的巷道为主要研究对象,运用数值模拟的方法研究了构造应力场中两类巷道的围岩稳定性。由结果可知,掘进过程中沿顶掘进巷道的变形破坏以底鼓和片帮为主,能有效保持顶板完整度,而沿底掘进巷道的变形破坏以冒顶和片帮为主,可有效保持底板和煤帮完整度;在相同煤柱宽度下,沿底掘进巷道受到的采动影响较小,而在相同埋深下,沿顶掘进巷道受到的采动影响较小,为此类工程场景中合理选取巷道掘进层位和进行支护提供了理论和技术的支持。In order to solve the support problem of thick coal seams under structural stress,this paper combines the geological conditions of the 2307 working face of Xiahuo Coal Mine,and takes the tunnels excavated along the roof and floor of thick coal seams as the main research objects.The numerical simulation method is used to study the surrounding rock stability of two types of tunnels in the structural stress field,from the results,it can be seen that the deformation and damage of the roadway along the top during excavation are mainly caused by bottom bulges and sheet walls,which can effectively maintain the integrity of the roof.However,the deformation and damage of the roadway along the bottom are mainly caused by roof caving and sheet walls,which can effectively maintain the integrity of the bottom plate and coal wall.Under the same coal pillar width,the mining impact on the bottom excavation roadway is relatively small,while under the same burial depth,the mining impact on the top excavation roadway is relatively small,providing theoretical and technical support for the reasonable selection of tunnel excavation layers and support in such engineering scenarios.

关 键 词：构造应力 掘进层位 数值模拟 围岩控制 

分 类 号：TD353[矿业工程—矿井建设]