摘要
现场调查了夹河矿深部巷道变形破坏特征,初步分析了其变形破坏原因。采用空芯包体应变法进行了地应力测量,分析了夹河矿深部地应力分布规律及其与区域地质构造的关系。采用扫描电镜试验、X射线衍射试验和室内物理力学性质试验等方法,对该矿深部巷道围岩特性进行了试验研究,确定了巷道围岩为典型的高应力-节理化-膨胀性复合型软岩,具有复合型变形力学机制,为巷道支护设计和施工提供了依据。
The characteristics of deformation and failure of deep roadway at Jiahe coal mine are obtained by field investigation, the reasons of deformation and failure are analyzed preliminaryily. The ground stress is tested by hollow inclusion stress measurement method, and the distribution law of the ground stress and the relationship with areal geologic structure are analyzed. The characteristics of the surrounding rockmass in deep roadway are analyzed by means of scanning electron microscopic test, X-ray diffraction test and la- boratory physical mechanics experiment. Finally, the type of the surrounding rockmass is determined to he tapical high stess-jionted-swelling one with the composite deformation mechanical mechanism, which provides scientific basis for the support design.
出处
《中国矿业》
北大核心
2011年第2期98-102,共5页
China Mining Magazine
基金
长江学者和创新团队发展计划(IRT0656)
关键词
深部工程
软岩
地应力测试
扫描电镜
X射线衍射
deep engineering
soft rock
ground stress test
scanning electron mieroscope
X-ray diffraction
