综采工作面上覆岩层运移破坏规律研究

Research on migration and failure law of overlying strata in fully-mechanized mining face

根据火烧铺矿2632综采工作面概况,首先理论分析了该工作面来压步距,并采用UDEC2D数值模拟软件对2632综采工作面上覆岩层运移破坏规律进行了研究,主要研究了2632综采工作面塑性区分布、工作面超前支承压力分布规律以及不同基载比条件下基本顶破坏特征分析。研究为综采工作面支护设计提供了理论基础。

According to the general situation of 2632 fully-mechanized working face in Huoshaopu Coal Mine,the weighting step distance of the working face was theoretically analyzed,and the migration and failure law of overlying strata in 2632 fully-mechanized working face was studied by using UDEC2 D numerical simulation software.This paper mainly studied the distribution of plastic zone,the distribution of advanced abutment pressure and the failure characteristics of basic roof under different base load ratio.The research provided a theoretical basis for the support design of fully mechanized mining face.