平煤八矿硐室围岩控制联合支护技术研究  

Study on Combined Support Technology of Surrounding Rocks Deformation Control of Chamber in Pingdingshan No.8 Coal Mine

作　　者：翟新献[1] 涂兴子[2] 李如波[2] 李明远 李鹏远 郭春生[2] ZHAI Xin-xian;TU Xing-zi;LI Ru-bo;LI Ming-yuan;LI Peng-yuan;GUO Chun-sheng(School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China;Tian＇an Coal Mining Company Limited of Pingdignshan City, Pingdignshan 467000, China;Pingyuan Soft Rock Support Engineering Co., Ltd. of Huaibei City, Huaibei 235000, China)

机构地区：[1]河南理工大学能源科学与工程学院,河南焦作454000 [2]平顶山天安煤业股份有限公司,河南平顶山467000 [3]淮北市平远软岩支护工程技术有限公司,安徽淮北235000

出　　处：《煤炭技术》2018年第5期1-3,共3页Coal Technology

基　　金：国家自然科学基金资助项目(51574110)

摘　　要：平煤八矿二水平轨道下山绞车房硐室,采用锚(索)网喷支护以后,硐室两帮开裂、顶板喷层脱落且底鼓严重。采用理论分析、数值模拟的方法,对硐室围岩稳定性进行了分析。研究结果表明,硐室围岩岩性差、地应力高和采动影响是造成硐室围岩收敛和底鼓严重的主要原因。为此,提出了钢丝绳网锚杆支护-底板卸压槽-围岩注浆联合支护新方案,通过现场工业性试验表明,该方案能够有效地控制硐室围岩变形问题。After supported by bolting with wire mesh,the winch chamber of track-dip in No.2 mining level in Pingdingshan No.8 coal mine was unstable. The two sides of the chamber cracked,its top shotcrete layer exfoliated,and its floor heaved seriously. Using theoretical analysis and numerical simulation, studied the stability of surrounding rocks of chamber. The results show that the main reasons for the convergence of chamber surrounding rocks and severe floor heave are poor surrounding rocks, high stresses,and mining influence. Therefore,new scheme of combined supporting by shotcrete-rope- meshbohing with stress relief slot and grouting was put forward. In-situ industrial test showed that the new supporting scheme can effectively control the surrounding rocks deformation of chamber.

关 键 词：硐室 围岩变形 底鼓 卸压槽 注浆 

分 类 号：TD353[矿业工程—矿井建设]