确定支架合理支护强度的数值模拟方法  

Numerical simulation to determine rational supporting strength of roof supports

作　　者：李春睿[1,2] 

机构地区：[1]天地科技股份有限公司开采设计事业部,北京市朝阳区100013 [2]煤炭科学研究总院岩石力学与支护专业委员会,北京市朝阳区100013

出　　处：《中国煤炭》2011年第5期79-82,共4页China Coal

基　　金："十一五"国家科技支撑计划重点项目课题(2008BAB36B01)

摘　　要：以支架和围岩的相互作用关系为理论依据,利用FLAC3D数值模拟软件对液压支架合理支护强度的确定方法进行了研究,提出了两种方法来确定液压支架的支护强度,一种是以工作面控顶区岩(煤)体的下沉量来判断支架的合理支护强度,另一种是以顶板(煤)对支架的直接作用力来判断合理的支护强度,并结合现场应用实例说明了两种方法的合理性。Research is conducted by taking the interaction between roof supports and the wall rock as the theoretical basis and using the FLAC3D to determine the rational supporting strength of hydraulic roof supports,which results in two methods-one using the level of subsidence of rock（or coal） mass in the roof control zone at the coalface and the other using the direct force of roof on the supports for determining the rational supporting strength.The rationality of the two methods is demonstrated in field application.

关 键 词：液压支架 支护强度 数值模拟 控顶区域 

分 类 号：TD355.41[矿业工程—矿井建设]