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- Roof coal caving mining 放顶煤回采
- This technique has been used successfully in the air-return gate oJ" 1310 fully mechanized roof coal caving face in Zhangcun Coal Mine. 该项研究在漳村1310综放面回风巷的工程实践中得到了成功应用和检验。
- Finally, the paper considers that the fully mechanized coal caving mining is helpful to control outburst hazard. 认为:具突出危险性的厚煤层采用综采放顶煤开采法对消突是有积极作用的.
- This article introduced applications,observation and research's actuality and developing trend of fully mechanized top coal caving mining under water. 介绍放顶煤开采技术在水体下采煤领域中的应用情况、观测研究现状及其发展趋势。
- Study on Preventing Roof Coal Caving in Big Section Bottom Driving 大断面沿底巷道掘进防顶煤冒落研究
- Design and exploration of forced roof falling for fully mechanized longwall top coal caving mining face 综放工作面强制放顶的设计与探索
- Fully mechanized top coal caving mining technology under unstable thick seam with soft roof, soft coal and soft floor 三软不稳定厚煤层条件下综采放顶煤技术
- longwall top - coal caving mining 综放开采
- top- coal caving mining with light supports 轻放工作面
- mechanized top coal caving mining 综放开采
- mechanized top coal caving mining face 综放工作面
- fully mechanized coal caving mining 综放开采
- fully mechanized longwall top coal caving mining 综放开采
- fully mechanized lop coal caving mining face 综放采场
- comprehensive mechanized coal caving mining face 综放工作面
- comprehensive top coal caving mining 综采放顶煤
- An artificial neural network for distinguishing the difficulty degree of roof coal caving of steep seam 急倾斜煤层顶煤可放性识别的神经网络模型
- gateway and pillar top coal caving mining 巷柱式放顶煤
- fully mechanized top coal caving mining 综放开采
- fully mechanized top coal caving mining face 综放工作面