耦合让压支护技术在动压影响巷道中的应用  

Application of Coupling Release-pressure Support Technology in Dynamical Pressure Roadway

作　　者：赵洪月 王宪勇 

机构地区：[1]山西晋神能源有限公司,山西河曲036500

出　　处：《煤矿安全》2015年第8期135-137,共3页Safety in Coal Mines

摘　　要：为控制受动压影响的掘进巷道围岩变形及锚杆破断情况,分析巷道的破坏形式为典型的留煤柱沿空掘巷巷道破坏现象。经计算,选取耦合让压应力显示锚杆,规格为20 mm×2 500mm;顶锚杆排间距1 000 mm×920 mm;帮锚杆排间距1 000 mm×1 000 mm,采用新支护技术后,顶板与两帮最大移近量分别为50、90 mm,巷道围岩变形得到有效控制。To control the deformation of surrounding rock and the bolt fracture phenomenon of the dynamical pressure heading roadway,the study analyzes that the damage form of roadway is a typical destruction of the remaining coal pillar gob- side entry driving. According to the theoretical calculation,the coal mine selects coupling release- pressure anchor. The specifications for the anchor is 20 mm× 2 500 mm; the roof bolt spacing is 1 000 mm × 920 mm; the end anchor bolt spacing is 1 000 mm × 1 000 mm; after adopting new supporting system,the biggest roof and end anchor rock deformation is 50 mm and 90 mm. The deformation rock of roadway receives effectively control.

关 键 词：耦合让压 围岩变形 巷道支护 支护参数 锚杆支护 锚索支护 

分 类 号：TD353[矿业工程—矿井建设]