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| Analysis of roadway instability mechanism and surrounding rock control technology in deep coal mine |
| Li Junwei |
| Xiegou Mine, Shanxi Xishan Jinxing Energy Corporation Ltd., Lvliang 033699, China |
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Abstract The deformation and failure of surrounding rock of deep roadway is quite different from that of shallow surrounding rock. In this paper, the instability of roadway in the belt downhill of Xiegou Mine was studied. It was concluded that the main cause of the serious deformation and damage was the serious stress of the roadway and groundwater. The support measures of +U steel + flexible backing plate based on characteristics of the support achieved better repair effect.
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