大倾角综放面合理区段煤柱宽度数值模拟研究  

Numerical simulation research of reasonable width of coal pillars in fully mechanized sublevel caving coalface with steep gradient

作　　者：张开智[1] 蒋金泉[1] 李大伟[2] 陈国胜[2] 王春增[2] 

机构地区：[1]山东科技大学 [2]平煤集团技术中心,河南平顶山467000

出　　处：《矿山压力与顶板管理》2002年第3期3-5,共3页Ground Pressure and Strata Control

基　　金：山东省自然科学基金项目资助 (Q99F0 7)

摘　　要：平煤集团十三矿为新建矿井 ,1 2 0 1 0为二采区首采工作面 ,最大倾角 3 2°,大倾角条件下合理煤柱留设尺寸是该矿采掘设计必须解决的首要问题。通过对不同煤柱宽度时的煤柱破坏发育规律、上下巷位移与变形、煤柱上方支承压力的数值计算分析认为 ,合理煤柱宽度为 8m,比原设计值节省近一半。No.12010 coalface is the first one in No.2 mining area of No.13 coalmine, which is a new, Pingtingshan mining group corporation, the maximum dip angle of coal seam is 32 degree. It is of first important problem that reasonable width of coal pills should be determined to the arrangement of coal mining and tunneling with steep gradient. By numerical calculation of breaking zone, displacement and deformation of both side roadways, abutment pressure of coal pillars are obtained. The results indicate that reasonable width of coal pillars is 8m, which is only half of the design value.

关 键 词：煤柱 数值模拟 综放面 变形 支承压力 垂直应力分布规律 巷道变形 

分 类 号：TD823.49[矿业工程—煤矿开采] TD8[矿业工程—矿山开采]