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| Deformation and failure characteristics and grouting reinforcement control of fully mechanized thick coal seam roadway surrounding rock |
| Bai Lu |
| Datong Guangfa Chemical Industry Corporation Ltd., Datong 037000, China |
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Abstract Based on the largely surrounding rock broken and deformation instability of thick coal seam fully caving roadway, 9402 working face air return roadway was taken as background, high supporting pressure, roadway surrounding rock structure and low strength of coal were the reason causing roadway deformation, grouting reinforcement improving surrounding rock properties was put forward. The reasonableness of the supporting scheme was verified by field industrial test.
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