松散煤体预应力锚索全长锚固技术研究及应用  

Research and Application of Full Length Anchorage Technology of Prestressed Anchor Cable in Loose

作　　者：周学斌 ZHOU Xuebin

机构地区：[1]淮北矿业股份有限公司涡北煤矿,安徽亳州233600

出　　处：《中国矿山工程》2023年第6期34-39,共6页China Mine Engineering

摘　　要：为解决极松软易破碎厚煤层煤顶下巷道存在的漏顶、片帮严重,支护效果差,掘进单进效率低,回采进度受制约等系列问题,以涡北煤矿842风巷外段为研究对象,采用现场应用、数值模拟等方法,在调研其工程地质条件及原支护方式下巷道变形概况的基础上,提出了松散煤体预应力锚索全长锚固技术,期望进一步提高我国极松软易破碎厚煤层综放面巷道掘进水平。In order to solve a series of problems such as serious roof leakage and rib spalling,poor support effect,low tunneling efficiency and restricted mining progress in the roadway under the coal roof of extremely soft and fragile thick coal seam,the outer section of 842 air roadway in Wobei Coal Mine is taken as the research object.Based on the investigation of its engineering geological conditions and the deformation of roadway under the original support mode,the full-length anchorage technology of prestressed anchor cable in loose coal body is put forward,which is expected to further improve the tunneling level of fully mechanized caving face in extremely soft and fragile thick coal seam in China.

关 键 词：极松软易破碎煤巷 巷道支护 全长锚固 数值模拟 

分 类 号：TD353[矿业工程—矿井建设]