杨庄矿3煤层残煤复采矿压特征模拟研究  

Numerical Simulation of The Characteristics of Rock Pressure of No.3 Coal Yang-Zhuang Mine During Repeated Mining Period

作　　者：张洪伟[1] 国峰[1] 张博[1] 周鹏[1] 

机构地区：[1]中国矿业大学矿业工程学院,江苏徐州221116

出　　处：《煤矿现代化》2013年第2期65-67,共3页Coal Mine Modernization

摘　　要：为保证残煤复采安全有效进行,通过UDEC4.0数值模拟,分析了工作面推进过程中上覆岩层运移规律、裂隙发育情况以及超前支承压力分布情况;确定直接顶初次垮落步距、老顶初次垮落步距、周期垮落步距、裂隙带高度、超前支承压力峰值和采动影响范围,掌握了研究区破碎围岩矿压显现规律。To ensure the safety and effective of the Residual coal mining,and to know well the mine pressure characteristics of repeated mining area of mine after mining,Through the calculating of numerical simulation software UDEC 4.0 modeling,the overburden migration law during the the process of Promoting,the overburden fractured situation and the forepoling pressure distribution are analyzed to determine the first caving step distance,the old roof first caving step distance,the old roof periodic caving step distance,fissure zone height,lead abutment pressure peak and the mining sphere of influence.

关 键 词：复采区 数值模拟 矿压规律 

分 类 号：TD35[矿业工程—矿井建设]