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| Underground Goaf Local Banding Pack Reducing Sedimentation Technology Research |
| XU Qing-yun,ZHANG Lei,HUANG Qing-guo |
| Coal Engineering Institute, Shanxi Datong University, Datong 037003, China |
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Abstract In order to ensure mine succeeded and production and ensure that the surface building safety, key strata theory in ground control as the instruction, underground goaf local banding pack reducing heavy technology was proposed. Filling material filling construct paralleled to the direction of working face coal wall rectangular strip, after solidification filling body controled on the overlaying strata movement and ensured the surface target building safe.
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