摘要
复合顶板巷道切顶卸压留巷时往往面临围岩控制困难问题,给巷道后续使用带来制约。以东林公司E;301回风巷复合顶板切顶卸压留巷为工程背景,对留巷技术以及围岩支护方案进行设计。在切顶前采用锚索、锚索梁及恒阻锚索梁超前支护,留巷段采用架棚、单体液压支柱、档杆支架等支护。现场应用后,巷道围岩变形整体较小,可满足巷道后续使用要求。
The roadway with composite roof is often faced with the difficulty of surrounding rock control during roof cutting,pressure relief and roadway retention,which restricts the follow-up use of the roadway.Taking the composite roof cutting,pressure relief and roadway retention of the E;301 return roadway of Donglin Company as the engineering background,the roadway retaining technology and surrounding rock support scheme are designed.The advance support of anchor cable,anchor cable beam and constant resistance anchor cable beam is adopted before roof cutting,and the retaining section is supported by frame shed,single hydraulic prop,pole support and so on.After field application,the deformation of the surrounding rock of the roadway is small as a whole,which can meet the safety of the subsequent use of the roadway.
作者
郭洪雷
陈茜
杨景宏
Guo Honglei;Chen Qian;Yang Jinghong(Inner Mongolia Donglin Coal Co.,Ltd.,Inner Mongolia Xilingol League 013200)
出处
《山东煤炭科技》
2022年第1期78-80,96,共4页
Shandong Coal Science and Technology
关键词
复合
顶板
切顶
留巷
compound
roof
top cutting
retain the roadway
