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- gassy seam mining method 瓦斯煤层采煤法
- This mining technology is innovations in the layout of this kind working face,mining method and technologies act and solves many technological difficult problems for the thin coal seam mining. 该开采技术在工作面巷道布置、开采机械、采煤方法、回采工艺等开采技术上进行综合创新,解决了薄煤层开采的技术难题。
- Inclined Medium-thickness Seam Mining Method 急倾斜中厚煤层开采方法
- inclined superhigh seam mining method 倾斜特厚煤层采煤法
- medium-thickness seam mining method 中厚煤层采煤法
- gently inclined high seam mining method 缓倾斜厚煤层采煤法
- gently inclined medium-thickness seam mining method 缓倾斜中厚煤层采煤法
- inclined high seam mining method 倾斜厚煤层采煤法
- Gateway layout in mining block with high gassy seam 高瓦斯煤层采区巷道布置
- steep low seam mining method 急倾斜薄煤层采煤法
- low seam mining method 薄煤层采煤法
- high seam mining method 厚煤层采煤法
- super high seam mining method 特厚煤层采煤法
- inclined low seam mining method 倾斜薄煤层采煤法
- The effective mining method at small piece section of superhigh and complicated seam is explored. 探索有效的特厚复杂结构煤层小块段的开采方式,可提高效益,降低消耗,开采简单,便于生产。
- Driving in gassy seam and prevention and cure of gas outburst 突出层掘进与瓦斯突出的防治
- The main contents of the water prospection and dewatering design is presented.The mining method for down?coal?seam is discussed.Some safety measures are put forward. 介绍了积水区探放水设计的主要内容;讨论了下煤层开采的基本方法;提出了几点重要的安全措施.
- Water-coal mixture burst is a new mine disaster in exploiting steeply inclined thick coal seam mining. 摘要急倾斜厚煤层开采时发生的水煤体溃泄是一种新的矿井灾害。
- How to extract thin coal seam remains a problem faced by all hydromines.Hydraulic mining of such seam in a hydromine proves to be superior to the conventional mining method. 薄煤层如何开采是水采矿井共同面临的一个问题,在水采矿井搞水采比搞旱采有优势。
- We have raised the coal output by using better mining methods. 我们利用更好的采煤法增加了煤炭产量。
