动压软岩巷道U型钢-锚索协同支护技术研究与应用  

U steel-cable bolt supports used in soft rock roadways with dynamic pressure:a research and application

作　　者：荆升国[1] 谢文兵[1] 王涛[1] 任有奎[1] 孙其飞[1] 

机构地区：[1]中国矿业大学矿业工程学院,江苏省徐州市221008

出　　处：《中国煤炭》2009年第1期42-44,共3页China Coal

摘　　要：针对裴沟煤矿-300 m水平大巷地质构造带围岩破碎且经受工作面动压影响的特点,分析了原有锚网、U型钢支护存在的问题,运用数值模拟软件FLAC对比分析3种支护下围岩变形特征,提出该地质条件下U型钢-锚索协同支护技术方案,并成功应用于工程实践。The characteristics of Peigou coal mine is that the tectonic structure surrounding the main roadway is broken and is always under the impact of the dynamic pressure from the working faces.On the basis of such conditions,the paper analyzes the problems of the conventional bolt-mesh and U steel supports and thus proposes a novel support solution of using U steel-cable bolt support system for use under such geological conditions.Then,numerical simulation software FLAC is used to analyze the surrounding rock deformation under the three support schemes and the result is applied successful in the practice.

关 键 词：U型钢 锚索 动压 数值模拟 

分 类 号：TD353.5[矿业工程—矿井建设]