How to improve the recovery rate of top caving face?
How to improve the recovery rate of top caving face?
发布时间：2025-09-29 22:16:23
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由 题搜搜 官方老师解答 )
答案：【计分规则】: The length of working face is lengthened to reduce the end loss;The advancing length of working face is lengthened to reduce the loss of initial and final mining;The parameters of coal caving are determined reasonably to reduce the loss of process;The roadway with roof cutting is adopted to reduce the initial mining loss; Or other feasible technical measures, such as increasing mining height, etc. (2points each item)
相关试题
- 1.How to improve the recovery rate of top caving face?
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