CN101705821B - 一种用于煤矿开采中坚硬顶板控制放顶的方法 - Google Patents
一种用于煤矿开采中坚硬顶板控制放顶的方法 Download PDFInfo
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CN112727459B (zh) * | 2020-12-25 | 2022-05-17 | 中国矿业大学 | 一种减小浅埋煤层开采影响的开采方法 |
CN112814679A (zh) * | 2021-01-07 | 2021-05-18 | 淮南矿业(集团)有限责任公司 | 一种缓倾斜厚煤层分层俯斜综采直覆坚硬顶板的预裂爆破方法 |
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CN114135287B (zh) * | 2021-12-03 | 2023-09-08 | 太原理工大学 | 一种岩石钻孔高温热破裂三维定向预裂方法 |
CN116988792B (zh) * | 2023-09-25 | 2023-12-15 | 太原理工大学 | 一种煤下硬水铝矿综合机械化开采工艺 |
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Inventor after: Kang Tianhe Inventor after: Wang Kai Inventor after: Zhang Yuxiao Inventor after: Yang Yongkang Inventor after: Zhang Shuyu Inventor before: Wang Kai Inventor before: Kang Tianhe Inventor before: Wang Dong |
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