金能煤矿软岩掘进巷道变形破坏特征及控制技术研究  

Deformation and Failure Characteristics and Control Technology of Soft Rock Heading Roadway in Jinneng Coal Mine

作　　者：王云刚[1,2,3] 康军保 杜炳成 神文龙 WANG Yun-gang;KANG Jun-bao;DU Bing-cheng;SHEN Wen-long(Safety Engineering Experimental Demonstration Center,Henan Polytechnic University,Jiaozuo 454000,China;State Key Laboratory Breeding Base of Gas Geology and Gas Control of Henan Province,Henan Polytechnic University,Jiaozuo 454000,China;Henan Collaborative Innovation Center of Coal Safety Production,Henan Polytechnic University,Jiaozuo 454000,China;School of Energy Science and Engineering,Henan Polytechnic University,Jiaozuo 454000,China)

机构地区：[1]河南理工大学安全工程实验示范中心,焦作454000 [2]河南理工大学河南省瓦斯地质瓦斯治理省部共建国家重点实验室培育基地,焦作454000 [3]河南理工大学煤炭安全生产河南省协同创新中心,焦作454000 [4]河南理工大学能源科学与工程学院,焦作454000

出　　处：《科学技术与工程》2023年第12期5340-5347,共8页Science Technology and Engineering

基　　金：国家自然科学基金(U1704129);河南省高校基本科研业务费专项(NSFRF220440,NSFRF210306)。

摘　　要：针对软岩巷道围岩在掘进过程中呈现出的顶板下沉量大、两帮收敛严重等特点,为解决巷道围岩稳定性控制的难题,以金能煤矿二采区1201工作面的运输顺槽为研究对象,基于工作面巷道工程地质条件,采用现场实测、数值模拟和工业性试验等方法,阐述了软岩巷道的变形破坏特征,提出了3种不同的围岩控制方案,利用FLAC3D软件模拟了该巷道围岩水平位移、垂直位移和塑性区分布情况,并进行现场测试。工程应用结果表明:“锚索+W钢带+U型钢+注浆”的支护方案效果明显,提高了围岩的承载能力,实现了巷道围岩的稳定性控制。For soft rock tunnel surrounding rock during excavation of large amount of roof subsidence and convergence of two serious etc.,to solve the problem of stability control of roadway surrounding rock,taking the two mining 1201 working face Jinneng coal mine transport gateway as the research object,based on the working face roadway engineering geological conditions,using methods of field measurement and numerical simulation and industrial test,the deformation and failure characteristics of soft rock roadway were described,and three different surrounding rock control schemes were proposed.The horizontal displacement,vertical displacement and plastic zone distribution of surrounding rock of the roadway were simulated by using FLAC3D software,and field tests were carried out.The engineering application results show that the supporting scheme of“anchor cable+W steel belt+U steel+grouting”has obvious effect,which improves the bearing capacity of surrounding rock and realizes the stability control of roadway surrounding rock.

关 键 词：软岩巷道 变形破坏 FLAC3D数值模拟 现场试验 

分 类 号：X936[环境科学与工程—安全科学]