综采工作面支架工作阻力数值模拟研究

Numerical simulation research on working yield of support on fully-mechanized working faces

近些年来,随着煤矿开采深度的增加,矿山压力也逐渐增大,而由此引发的安全事故也逐年递增。为了确定某煤矿首采工作面的支架工作阻力,运用通用离散元软件UDEC,对采场开采过程进行数值模拟分析。并通过现场实测,获取基础数据。通过UDEC数值模拟得到该工作面顶板的下沉量与液压支架支护强度的关系,从而对该综采工作面液压支架的工作阻力进行确定。

In recent years,the ground pressure and the safety accidents have gradually increased because of the mining depth becoming more and more deeper. To study the working resistance of hydraulic support of the first working face in a mine,the paper used the universal distinct element code analyzing the mining process. The basic data were obtained through the field measurement. The relationship of the working face＇s roof subsidence and the strength of hydraulic support has been got through the universal distinct element code＇ s numerical simulation,and the working resistance of hydraulic support on fully-mechanized coal face has been defined.