不同覆岩结构短壁开采上覆岩层运动的数值分析

Numerical simulation of overburden movement of short wall mining with different overlying rocks

不同覆岩性质及其组合对上覆岩层的破坏和运动有着关键性的影响,而回采工作面上覆岩层破坏和运动规律的研究是矿压控制的基础。运用RFPA2D对神东矿区不同覆岩结构的短壁式开采进行模拟,分析比较不同覆岩性质及其组合对上覆岩层运动和破坏的影响,再现受采动影响岩体的破坏和移动规律。

Different natures and compositions of overlying rocks have a critical impact on the overburden movement and destruction and the law of the working face＇s overburden movement and destruction is the basis of the strata control.Using RFPA2D to simulate the short wall mining with different overlying rocks in Shendong,and then analyzing and comparing the impact of different natures and compositions of overlying rocks to the movement and destruction of the overburden.Representing the law of the destruction and movement of the rocks which impacted by mining.