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| Study on deep roadway surrounding rock Deformation Destroy influencing factors and control technology |
| LIU Meng-yu1, BI Xiong-fei2, HU Cheng-jun1 |
| 1. China Coal Handan Design Engineering Corporation Ltd., Handan 056031, China; 2. Shanxi Shenzhou Mining Industry Corporation Ltd., Lishi 033000, China |
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Abstract The degree of deep roadway surrounding rock control seriously confines deep coal resource mining, whole section deformation and failure of Dafosi Mine enlarging area north roadway was taken as study object, through field monitoring, factor and mechanism influencing the stability of the roadway were analyzed, high ground stress, floor without support, groundwater erosion were the main factors. Long ring support +bolt and anchor cable grouting combined support was put forward, the support parameters were designed. the deformation quantity of the roadway by the field monitoring showed that the technology could ensure the efficient surrounding rock stability of the deep roadway.
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