千米深井不同采高下围岩应力分布规律研究  

Different Mining Height Are Broken Surrounding Rock Stress Distribution Law Research in Kilometer Deep Shaft

作　　者：李兴华[1] 林安娜 

机构地区：[1]山东科技大学矿业与安全工程学院,山东青岛266590

出　　处：《煤炭技术》2016年第3期1-3,共3页Coal Technology

摘　　要：以唐口煤矿1305工作面为工程背景,运用三维数值模拟对不同采高下千米深井围岩应力分布特征进行了研究分析。研究表明:在开采过程中,煤壁前方应力集中区分布呈"双肺状"对称分布,超前支承压力峰值与影响范围随着工作面的不断推进而逐渐增加,采空区上覆岩层破坏面积、高度逐渐增大。Based on the engineering background of Tangkou coal mine 1305 working face, using three- dimensional numerical simulation analyze the characteristics of rock surrounding stress distribution under different mining height in the km deep. The results show that the abutment pressure in front of the coal wall distribute symmetrically similar to the ＂double lung appearance＂ the peak value of abutment pressure in front of the coal wall and influence scope increased with the working face advancing, the failure area and height of goaf overlying strata increased as well.

关 键 词：不同采高 数值模拟 动力灾害 支承压力 

分 类 号：TD32[矿业工程—矿井建设]