含水岩层下大巷支护技术研究与应用  

Research and Application of Support Technology for Main Roadway under Water-bearing Strata

作　　者：焦彪 Jiao Biao(Lanhua Group Jushan Coal Mine Co.,Ltd.,Shanxi Zezhou 048200)

机构地区：[1]兰花集团莒山煤矿有限公司,山西泽州048200

出　　处：《山东煤炭科技》2021年第11期63-65,共3页Shandong Coal Science and Technology

摘　　要：为解决含水层影响下莒山煤矿9^(#)煤层辅运大巷支护问题,通过数值模拟研究含水层对大巷围岩的影响,依据围岩破坏特征提出相应的围岩控制思路和措施,工业应用期间进行巷道表面位移监测。研究表明:含水层影响下,巷道围岩塑性破坏范围增大,采用"高预应力高强锚杆+预应力锚索+混凝土喷浆"联合支护技术,辅运大巷顶底板最大移近量131 mm,两帮76 mm,围岩变形量控制在合理范围内。In order to solve the support problem of auxiliary transportation roadway in the 9^(#)coal seam of Jushan Coal Mine under the influence of aquifer,the influence of aquifer on surrounding rock of roadway is studied by numerical simulation,and the corresponding control ideas and measures of surrounding rock are put forward according to the failure characteristics of surrounding rock.Roadway surface displacement monitoring is carried out during industrial application.The study shows that under the influence of aquifer,the plastic failure range of surrounding rock of roadway increases,and the combined support technology of"high prestressed high strength anchor+prestressed anchor cable+concrete shotcreting"is adopted,the maximum displacement of roof and floor of auxiliary roadway is 131 mm,the two sides are 76 mm,and the deformation of surrounding rock is controlled within a reasonable range.

关 键 词：含水层 大巷 支护 

分 类 号：TD353[矿业工程—矿井建设]