深部区域破碎围岩开拓巷道围岩控制技术  

Surrounding Rock Control Technology of Development Roadway with Broken Surrounding Rock in Deep Area at Fully-mechanized Mining Face

作　　者：薛永 陈晋龙 薛强 Xue Yong;Chen Jinlong;Xue Qiang(Shanxi Wangjialing Coal Industry Co.,Ltd.,Baode,Shanxi 036000)

机构地区：[1]山西王家岭煤业有限公司,山西保德036000

出　　处：《江西煤炭科技》2024年第3期26-28,共3页Jiangxi Coal Science & Technology

摘　　要：山西王家岭煤业2900轨道大巷受埋深大、顶板岩体破碎且强度偏低、原有支护参数设计不合理等多因素影响出现变形量大,无法满足使用需要。结合现场条件以及钻孔窥视成果,提出采用超前(滞后)注浆+围岩喷浆+增加顶锚杆长度+W钢带、菱形金属网强化顶板支护手段控制围岩变形,并具体给出巷道支护参数。采用的巷道支护技术措施通过提升围岩强度、发挥围岩自稳能力以及锚索悬吊效果实现围岩变形有效控制。现场应用后,2900轨道大巷围岩变形量大、顶板冒落及离层量大等问题得以较好解决,顶底板及巷帮变形量分别控制在153 mm、96 mm以内,巷道可满足后续使用需要。Aiming at the large deformation of 2900 track roadway influenced by large buried depth,broken and low-strength roof rock body,and unreasonable parameter of original support,the author proposes the roof support reinforcement methods by advanced(lagging)grouting,surrounding rock guniting,and roof bolt length increase with W-typed steel strip and diamond metal net,whose field application shows that the technology can effectively control the deformation of surrounding rock,the roof falling and the roof bed separation with the roof-floor and side deformation within 153 mm and 96 mm respectively.

关 键 词：深部开采 巷道掘进 破碎围岩 变形控制 

分 类 号：TD263.51[矿业工程—矿井建设] TD353