Key Technology of Active Advance Support and Its Application in Longwall Coal Mining
At present,China's mines mainly adopt the passive advanced support of single column such as joint roof beam and hydraulic support,which is difficult to achieve unattended in mining areas.Therefore,taking the mining roadway as the research object,its influence law in the key links of the excavation process was studied,the influence of the excavation process on the excavation speed was revealed,and the internal relationship between the two was explored,so as to reduce the excavation cost and improve the excavation efficiency of the roadway.
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