薄基岩浅埋深长壁工作面覆岩结构运动特征  

Movement Characteristic of Overlying Strata Structure over Long-wall Mining Face in Shallow Buried Coal Seam

作　　者：任艳芳[1,2] 刘江[1] 齐庆新[1,3,4] 

机构地区：[1]煤炭科学研究总院开采设计研究分院,北京100013 [2]天地科技股份有限公司开采设计事业部,北京100013 [3]煤炭科学研究总院科技发展部,北京100013 [4]煤炭资源高效开采与洁净利用国家重点实验室(煤炭科学研究总院),北京100013

出　　处：《煤矿开采》2011年第3期35-37,共3页Coal Mining Technology

基　　金：国家科技支撑计划项目(2008BAB36B01;2008BAB36B12);国家重点基础研究发展计划(973)项目(2010CB226806)

摘　　要：利用离散元数值模拟软件,分析了典型浅埋深长壁工作面围岩力学场分布特征和覆岩运动规律,研究了浅埋深长壁工作面覆岩结构形式及运动特征。研究得出浅埋深长壁采场开采后,围岩应力场中可形成"承压拱"结构,该结构具有承载作用,并具有连续性、稳定性和动态性特点。Applying discrete element software,stress field distribution characteristic and movement rule of surrounding rock of long-wall mining face in shallow buried coal-seam was analyzed;surrounding strata structure and movement characteristic was researched.Results showed that bearing arch structure could form in stress filed of surrounding rock and the structure could bear load and had the characteristics of continuity,stability and activity.

关 键 词：浅埋煤层 “承压拱”结构 数值模拟 运动特征 

分 类 号：TD325[矿业工程—矿井建设]