工作面巷道高压水力切顶卸压技术研究  

High-pressure Hydraulic Top Cutting and Pressure Relief Technology for Working Face Tunnels

作　　者：李旸 LI Yang(Jingfu Coal Industry Co.,Ltd.,Huayang New Material Technology Group,Jinzhong 045400,Shanxi,China)

机构地区：[1]华阳新材料科技集团景福煤业有限公司,山西晋中045400

出　　处：《能源与节能》2024年第11期140-142,168,共4页Energy and Energy Conservation

摘　　要：为降低采动压力对景福煤业15107进风顺槽、采区运输大巷的影响,将高压水力切顶卸压技术应用到了15106回风顺槽中,并具体分析了其应用效果。15106回风顺槽高压水力切顶后可切断15106采空区顶板应力传递路径,实现了采空区顶板的及时垮落,从而降低了采动压力对邻近回采巷道及采区大巷的影响。工程应用后,15107回风顺槽顶底板、两帮位移量分别为134、193 mm,变形量较未压裂段降幅分别达到了82.6%、70.4%,运输大巷顶板下沉量控制在了31~40 mm之间,工程应用效果显著。To reduce the impact of mining pressure on the 15107 intake airway and mining area transportation roadway of Jingfu Coal Industry Co.,Ltd.,high-pressure hydraulic top cutting and pressure relief technology was applied to the 15106 return airway,and its application effect was specifically analyzed.After high-pressure hydraulic cutting of the 15106 return airway,the stress transmission path of the 15106 goaf roof can be cut off,achieving timely collapse of the goaf roof and reducing the impact of mining pressure on adjacent mining tunnels and mining area tunnels.After engineering application,the displacement of the roof and floor,as well as the two sides of the 15107 return air duct,were 134 mm and 193 mm respectively.The deformation reduction compared to the non fractured section reached 82.6%and 70.4%,respectively.The subsidence of the transportation roadway roof was controlled between 31-40 mm,and the engineering application effect was significant.

关 键 词：采动压力 巷道支护 切顶卸压 水力压裂 

分 类 号：TD327.2[矿业工程—矿井建设]