松软破碎围岩巷道重复扩修支护技术研究  

Repeated Expansion and Support Technology for Soft and Fractured Surrounding Rock Roadways

作　　者：周洪应 ZHOU Hongying(Dahebian Coal Mine,Guizhou Shuicheng Mining Co.,Ltd.,Liupanshui 553000,Guizhou,China)

机构地区：[1]贵州水城矿业股份有限公司大河边煤矿,贵州六盘水553000

出　　处：《能源与节能》2023年第7期90-92,138,共4页Energy and Energy Conservation

摘　　要：在煤矿开采过程中,一些巷道由于围岩松软、支护设计不合理或矿山压力过大而出现变形、撕网、漏顶等现象,为了保证巷道的安全使用,需要对巷道进行修复。经过多次翻修,巷道围岩松动圈越来越大,支护也更加困难。结合大河边煤矿31运输上山的实际情况,采用了“锚网+U型棚+注浆锚索+喷浆+注浆”的联合支护形式。为了保证修复的安全施工,制定了一系列的安全措施。In the process of coal mining,some roadways may experience deformation,mesh tearing,and roof leakage due to soft surrounding rock,unreasonable support design,or excessive mine pressure.In order to ensure the safe use of the roadways,it is necessary to repair them.After multiple renovations,the loose zone of the surrounding rock in the roadway is becoming larger and the support is becoming more difficult.Based on the actual situation of 31 transportation rise in Dahebian Coal Mine,a combined support form of"anchor net+U-shaped shed+grouting anchor cable+guniting+grouting"was adopted.In order to ensure the safe construction of the repair,a series of safety measures had been formulated.

关 键 词：煤矿开采 巷道修复 支护技术 锚网支护 注浆锚索 

分 类 号：TD353[矿业工程—矿井建设]