让压支护技术在动压影响巷道中的应用研究  

Application of Yielding Support Technology in Dynamic-Pressure-Influenced Roadway

作　　者：辛卫军 

机构地区：[1]阳煤集团山西新景矿煤业有限责任公司,山西阳泉045000

出　　处：《江西煤炭科技》2015年第3期100-102,共3页Jiangxi Coal Science & Technology

摘　　要：由掘进巷道围岩变形、及锚杆断裂现象,分析巷道的破坏形式为典型的留煤柱沿空掘巷巷道破坏显现。经理论计算,选取耦合让压应力显示锚杆,规格为Φ20mm,L 2500mm;顶锚杆排间距1000mm×920mm;帮锚杆排间距1000mm×1000mm,采用新支护系统后,顶板与两帮最大移近量分别为50mm、90mm,巷道围岩变形得到有效控制。To prevent the surrounding rock deformation and bolt fracture in dynamic - Pressure -influenced roadway ,the author suggests the application of coupling yielding support with bolt specification of Φ 20 mm and L 2500 mm ,roof bolts spacing of 1000 mm x920 mm and rib bolts spacing of 1000 mmx 1000 mm ,which would effectively control the surrounding rock deformation with maximum convergence of 50 mm in roof and 90 mm in two ribs .

关 键 词：耦合让压 围岩变形 支护 参数设计 

分 类 号：TD353.6[矿业工程—矿井建设]