太原理工大学学报

2019, v.50;No.225(05) 616-621

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高地应力深部巷道变形破坏特征的相似模拟实验研究
Similar Simulation Test on Deformation and Failure Characteristics of Deep Roadway under High Geostress

薛光武;
XUE Guangwu;Department of Mining Engineering, Lvliang University;College of Mining Engineering, Taiyuan University of Technology;

摘要(Abstract):

针对高地应力深部巷道的大变形与动态破坏问题,以某煤矿深部847 m处运输大巷为例,进行了高地应力条件下巷道变形破坏规律的二维相似模拟实验。首先通过地质调查得出该巷道上覆岩层和底部岩层的物理力学性质,然后根据相似理论建立了二维相似地质模型。通过对巷道进行开挖作业,并实时监测巷道顶底板和两帮不同位置点的位移和应力的变化规律,得出了巷道的变形破坏特征与时间的关联性。
In this paper, the problem of large deformation and dynamic failure of deep roadway with high in-situ stress is studied. Then, taking a transport roadway with a depth of 847 m in a coal mine as an example, a two-dimensional similarity simulation experiment on the deformation and failure law of roadway under high in-situ stress was carried out. Firstly, the physical and mechanical properties of the overburden and bottom strata of the roadway are obtained through geological survey, and then a two-dimensional similar geological model is established based on the similarity theory. Through the excavation of the roadway, and real-time monitoring of the displacement and stress of the roof, floor and left and right sides of the roadway at different locations, the relationship between the deformation and failure characteristics of the roadway and the time is obtained. The research results of this paper can provide some theoretical support for deep roadway support.

关键词(KeyWords): 深部巷道;高地应力巷道;变形破坏;相似模拟;位移;应力
deep roadway;high geostress roadway;deformation and failure;similarity simulation;displacement;stress

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作者(Author): 薛光武;
XUE Guangwu;Department of Mining Engineering, Lvliang University;College of Mining Engineering, Taiyuan University of Technology;

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