大采高采场三维应力分布规律数值模拟研究  

Three Dimensional Stress Law Research of Fully Mechanized Working Face of Large Height Mining

作　　者：赵明[1] 李春香 林佳 张鹏[1] 赵健[1] 

机构地区：[1]中国矿业大学(北京)资源与安全工程学院,北京100083 [2]贵州工程应用技术学院矿业工程学院,贵州毕节551700 [3]中煤西安设计工程有限责任公司,西安710054

出　　处：《煤炭技术》2017年第1期53-56,共4页Coal Technology

基　　金：高等学校博士学科点专项科研基金(20120023110023);中央高校基本科研业务费专项资金项目(2014QZ03)

摘　　要：以谢桥煤矿1232(3)工作面地质条件为基础,利用数值模拟方法研究该工作面采场的三维宏观力学特征,揭示了大采高综采工作面开采过程中工作面煤岩层三维应力分布规律。研究表明:顶板岩层中的最大主应力作用位置位于煤层内最大主应力作用位置前方,采场空间围岩内存在椭球形状的应力拱壳结构,工作面位于压力拱壳结构内部的低应力区。Based on the geological conditions of 1232 （3） working face in Xieqiao coal mine, revealed the three-dimensional stress distribution of coal strata in the process of the large height face mining by using numerical simulation method to study the three-dimensional macroscopic mechanical characteristic of mining stope. The researches show that the position of the maximum principal stress in the roof strata is in front of that in the coal seam and there is the stress arch shell structure of ellipsoid shape in the surrounding rock of the stope space, and that the working face is located in the low stress area of the stress arch shell structure.

关 键 词：大采高 围岩 应力分布 应力拱 

分 类 号：TD322[矿业工程—矿井建设]