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| Application of high water material in crossing roadway of fully mechanized caving face |
| Yuan Hongwei |
| Shanxi Anxin Construction Engineering Inspection Corporation Ltd., Jincheng 048000, China |
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Abstract Aiming at the problems of the front support pressure when the 3311 fully mechanized caving face in Chengzhuang Mine passing through the empty roadway, with possible problems of rib-spalling and roof falling in the empty roadway. The properties of high-water materials were analyzed and studied, and a scientific and reasonable empty roadway filling process and pre-reinforcement measures were put forward. Practice showed that high-water material filling can maintain the stability of empty roadway surrounding rock and ensure safe and efficient mining of working face.
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