Analysis of Deformation and Control Scheme of Surrounding Rock in Underground Coal Mine Roof-Cutting and Unloading Roadway
Aiming at the problem of large deformation and poor stability of the peripheral rock in the roadway of 6306 comprehensive mining face in the underground of Sihe Coal Mine,which greatly affects the efficiency and safety of the comprehensive mining operation in the underground of the coal mine,a scheme of stratified and zoned support according to the structure of the peripheral rock is proposed,which realises the precise control of the deformation of the peripheral rock of the roadway of the top-cutting and depressurized roadway.According to the practical application,the new control technology can reduce the deformation of underground roadway perimeter rock by 66.8％,and improve the efficiency of underground coal mining by 17.2％.
roof cutting and pressure reliefperipheral rock deformationroadway support
NETL
NSTL
万方数据
