深部条采工作面上覆岩层下沉系数影响因素关系

Influence factors of overlying strata subsidence coefficient in deep strip mining face

为探讨深部条采工作面上覆岩层下沉系数与开采深度、采、留煤柱宽度及开采深度与开采厚度之间的关系,指导三下压煤回采,文中建立了以中兴煤业为原型的数值模拟模型,并设计采深为800m、900m、1000m、1100m四种模型,建立了采留宽度为80m、100m、120m、140m几个模型,并根据模拟结果拟合出相应方程,为深部三下压煤回采提供依据。

In order to investigate the relationship between the deep mining overlying strata subsidence coefficient and the depth of mining,coal pillars width and mining depth and mining thickness to guide the three under coal mining,this paper established the simulation model of the numerical prototype according to Zhongxing coal mining,designed four kinds of models that mining depth is800m and900m1100m,1000m,established the model that the mining width is80m,100m,120m,140m,and fitted the corresponding equations according to the simulation results,which provide reference for deep”three under”coal mining.