采矿与安全工程学报Issue(4)：587-592,6.
深井软岩巷道连续“双壳”治理底鼓机理与技术
Study on technology and mechanism of continuous“double shell”harnessing floor heave in deep soft-engineering rock roadway
摘要
Abstract
Harnessing floor heave of roadway is one of the difficult but key problems in roadway sup-porting. The influence factors and mechanism of floor heave in the deep soft-engineering rock roadway are analyzed through site investigations and monitoring in the middle-strip track roadway at Xinjing Coal Mine. It is confirmed that the main causes of floor heave are that there is no support in the floor rock,which means the shear failure occurs firstly because of high-stress,and then stratum crushes further into squeezing and flowing because of water leading to further fragmentation. Therefore,the mechanism of the continuous “double shell” harnessing floor heave is studied by using continuous“double shell”to control floor heave and the technique of the continuous“double shell”harnessing floor heave that uses “bottom shallow hole grouting (shallow shell) +deep-anchor-beam with high-pressure grouting (deep shell)”to control floor heave is established. The technique has obtained a good effect.关键词
深井巷道/工程软岩/底鼓治理/连续“双壳”/支护机理Key words
deep roadway/soft-engineering rock/harnessing floor heave/continuous“double shell”/support mechanism分类
矿业与冶金引用本文复制引用
杨本生,高斌,孙利辉,杨万斌..深井软岩巷道连续“双壳”治理底鼓机理与技术[J].采矿与安全工程学报,2014,(4):587-592,6.基金项目
国家自然科学基金项目(51174070)；河北省自然科学基金项目(E2011402046) （51174070）
