石沟驿煤矿采场矿压分布规律数值模拟研究

Study on Numerical Simulation of Mine Ground Pressure Distribution Law at Shigouyi Coal Mine

本文依据石沟驿煤矿开采工艺、水位地质、岩体力学试验等基础资料,采用FLAC-3d数值软件,对开采过程中采场矿压的释放和转移规律进行研究。通过研究揭示了沿煤层倾斜剖面,工作面上方存在应力拱结构。作为主要的承载体,应力拱起到了力的传导作用,它将上覆岩体的压力传递到工作面上下隅角位置,在上运输巷附近形成支承压力。

The paper studies on the regularity of releases and transfers of ground pressure in mining process by using numerical software FLAC-3d and coal mining process and basic information such as level geology, rock mechanics testing. Through research, it reveals there is stress arch structure at coal section and the work surface. As the main supporting body, stress arch play the role of transmission, it passes the pressure of overlying rock to the work surface from top to bottom corner, and forms support pressure near transport roadways.