深井大采高工作面覆岩破坏过程数值模拟研究

Numerical Simulation Research on Deep Well Mining Height Overburden Rock Failure Process

以唐口煤矿1305工作面为工程背景,采用RFPA2D数值模拟软件,对埋深1 000 m,采高5.5 m条件下大采高工作面覆岩破坏过程进行了反演,得到了深井大采高条件下上覆岩层运动的主应力、位移矢量变化规律以及声发射特征,为类似工程地质条件下工作面的安全开采和支护设计提供了理论依据。

Papers to the Tangkou coal mines 1305 working face for background,it used numerical simulation software named RFPA2D ,it inverted the mining height working face overburden rock failure process under conditions that mining height is 5.5 m and depth of burial is 1 000 m, it obtained stratum movement principal stress, characteristics of variation of the displacement vector and acoustic emission in deep well under mining height,it provides a theoretical basis for working face safe exploitation and support design under similar engi- neering geological conditions.