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san ruan mei ceng pao fang cai chang zhi hu he fang mei gong yi
Author(s): 
Pages: 44-45
Year: Issue:  11
Journal: Safety in Coal Mines

Abstract: 为探索“三软”构造煤采场顶板来压机理,优化放煤工艺,对国投煤炭郑州能源开发有限公司教学三矿11011工作面进行了矿压观测,取得了大量观测数据,掌握了工作面上覆岩层活动规律及其运动参数,在此基础上,对工作面顶煤放出规律、放煤工艺参数进行了研究,提出了整套采场支护和放煤工艺改革方案,改善了回采工作面顶板控制状态,提高了顶煤放出率。
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