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- W3199176295 abstract "随着推采工作面出现较为复杂的地质条件,煤层出现折返现象,最大倾角达22°,工作面最长时达143m,前后部运输机需挺溜槽.同时,煤层倾角变化大,冲击地压威胁严重,给回采带来很大的难度.为了控制机尾犄角顶板压力,减少支护浪费的时间,经研究制定了方案,通过对工作面回采复杂条件实行综放与高档的交替联合布置,有效控制了冲击地压威胁,顺利推采过此区域,节约了生产投入,降低了劳动成本,增加了煤炭资源回收率,提高了工作面的回采效率." @default.
- W3199176295 created "2021-09-27" @default.
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- W3199176295 date "2019-01-01" @default.
- W3199176295 modified "2023-09-24" @default.
- W3199176295 title "bu deng chang zong fang gong zuo mian zhi hu you hua fang shi de tan tao" @default.
- W3199176295 hasPublicationYear "2019" @default.
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