平煤十二矿31030工作面进风巷破碎围岩控制技术  

Broken surrounding rock control technology for air intake roadway in 31030 working face of Pingdingshan No.12 Mine

作　　者：赵云龙 ZHAO Yunlong(Ping Coal Share swelfth mine Pingdingshan WeidongDistrict,Pingdingshan 467000,China)

机构地区：[1]平煤股份十二矿安检科,河南平顶山467000

出　　处：《煤矿现代化》2020年第6期4-6,共3页Coal Mine Modernization

摘　　要：为保障31030工作面进风巷围岩的稳定,根据其与上覆己15煤层采空区间的赋存关系可知巷道围岩较为破碎,通过具体分析破碎围岩支护原则,确定巷道采用棚索耦合支护,支护方案实施时主要采用支架搭接强化技术、支架间围岩强化技术和U型钢-锚索协同支护技术,结合巷道围岩的具体特征,进行棚索协同支护方案的设计,并在支护方案实施后进行巷道表面位移情况的观测分析。结果表明:31030工作面进风巷在该种支护方案下,掘进期间顶底板及两帮最大变形量分别220mm和149mm,保障了巷道破碎围岩的稳定。In order to ensure the stability of the surrounding rock of the inlet tunnel of 31030 face,according to its existence relationship with the mined section of the overlying 15 coal seam,it can be seen that the surrounding rock of the roadway is relatively broken.Through the specific analysis of the supporting principle of broken surrounding rock,it is determined that the roadway adopts shed cable Coupling support,the implementation of the support plan mainly adopts the bracket lap strengthening technology,the surrounding rock strengthening technology between the supports and the U-shaped steel-anchor cable cooperative support technology,combined with the specific characteristics of the roadway surrounding rock,the shed cable cooperative support program Design and observe and analyze the surface displacement of the roadway after the implementation of the support plan.The results show that:under the support scheme of 31030 working face air inlet tunnel,the maximum deformation of roof and floor and the two sides during excavation are 220mm and 149mm respectively,which guarantees the stability of the broken surrounding rock of the roadway.

关 键 词：破碎围岩 棚索耦合 围岩控制 表面位移 

分 类 号：TD353[矿业工程—矿井建设]