摘要
阐述了为了及时接替2608工作面,河北金牛股份东庞矿二水平六采区2610工作面回风巷采用沿空掘巷,在上部相邻的2608工作面停采仅1个月,并且没有撤架的情况下进行2610工作面回风巷掘进的实践,给出了在动压作用期内沿空掘巷矿支护设计、矿压观测情况以及巷道控制效果。
In order to continue coal production by replacing the # 2608 coal face in a timely manner, Dongpang Coal Mine, an affiliate of Hebei Jinniu Energy Co Ltd, applies the technology of gob-side entry driving for the construction of the air-returning tailgate of # 2610 coal face in No. 6 mining district on No. 2 level of this mine. The driving of the air-returning tailgate of #4 2610 coal face is practiced just one month after coal production ceases and no supports are evacuated from the upper # 2608 coal face. The paper provides the technical data of the support design for the gob--side entry driving operation and mine pressure monitoring data during the active period of dynamic pressure. Also described are the results of entry control.
出处
《中国煤炭》
北大核心
2009年第10期50-52,共3页
China Coal
关键词
动压
锚杆
锚索
大断面
dynamic pressure
bolt
cable
large cross-sectional area
