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- simple caving mining face 简放工作面
- Nitrogen injection to the gob with buried pipes is used in 7235 full-mechanized caving mining face in Xuzhuang Colliery to prevent the left coal oxidizing and self-igniting. 摘要介绍了徐庄煤矿7235综放面开采中,采用埋管注氮方式向采空区注氮,防止采空区遗煤氧化自燃。
- mechanized top coal caving mining face 综放工作面
- full-mechanized caving mining face 综放工作面
- fully mechanized longwall caving mining face 综放工作面
- fully mechanized lop coal caving mining face 综放采场
- fully mechanized sublevel caving mining face 综放工作面
- fully mechanized top-coal caving mining face 综放面
- fully-mechanized caving mining face 综放工作面
- comprehensive mechanized coal caving mining face 综放工作面
- fully mechanized top coal caving mining face 综放工作面
- The mechanism of rock bursts occurred in gateways, combined with engineering practice, is studied and the mining in fully-mechanized sublevel caving mining faces is simulated by using the software FLAC(superscript 3D). 研究综放工作面回采巷道冲击地压发生机理,结合工程实例,运用FLAC(上标3D)软件模拟综放面回采。
- Water injection test in seam of coal caving mining face 简易放顶煤工作面煤层注水试验
- Gas Control on Caving Mining Face of Single and Thick Coal Seam 单一厚煤层放顶煤工作面的瓦斯治理
- over-long and island fully mechanized top coal caving mining face “超长”“孤岛”综放面
- fully mechanized caving mining face with extra long mining length 大采长综放面
- fully mechanized longwall top coal caving mining face 综放面
- fully mechanized top coal caving mining face in island seam 孤岛综放面
- Roof Control of Tunnls of Full-mechanized Caving Mining Face in Soft Coal Seam 软煤层综放工作面两巷顶板管理
- Feasibility Research of First Full-mechanized Caving Mining Face under Sea Area 首个海域下综放工作面试采可行性研究