• The horizontal section top coal caving in steep seam is different from the gently inclined seam.

    煤层水平分段放顶煤开采与斜煤层不同,工作面沿煤层厚度的水平线布置,长度短。

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  • There have been some problems such as low coal recovery and difficult management after coal mining in steep seam mining method.

    倾斜煤层的回采一直存在着回采率、采难以管理实际问题

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  • On the basis of summarizing testing effects, the extension of crack and the breaking mechanism of top coal caving in steep seam have been analyzed by applying fracture mechanics theory.

    总结现场试验效果基础上应用断裂力学理论分析倾斜煤层巷道放顶煤顶煤裂纹扩展破碎机理

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  • Combined with the production situation of Muchengjian coal Mine, this paper introduced the method of water injection in steep seam coal, and the effect obtained after applied this method.

    结合木城涧煤矿生产情况介绍了急倾斜煤层注水方法煤矿应用所取得效果

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  • The practice on sublevel combined mining in steep seam is approached and the advantage of it is analyzed. It is an efficient way to realize the high efficiency production in steep seam in coal mine.

    介绍急倾斜煤层小阶段联合开采实践探索分析了小阶段联合开采优越性,认为该方法是实现倾斜矿井高产高效的有效途径

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  • The rectilinear home is topped with a steep roof that consists of standing-seam metal panels, which reflect light.

    线型房子顶部陡峭屋顶,屋顶反射光的直立金属面板组成。

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  • Base on the site observation and experimental research, the paper studied the top coal structure for the top coal caving mining in steep inclined seam sections.

    现场观测实验研究基础上,倾斜水平分段顶煤开采过程煤体结构进行了研究。

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  • First, based on similar material model test, top coal cave-in characters in steep and thick seam were studied as well as failure law of main roof and features of surface subsiding.

    首先利用相似模拟实验研究了急斜特煤层顶煤冒落特征顶板破坏规律以及地表下沉特点

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  • The steep inclined seam is a difficult mining seam with a poor safety condition, a poor support stability, a lower mechanization and lower mining rate.

    倾斜煤层采煤层具有安全状况支架稳定性差、机械化程度回采效率低等问题。

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  • The stable-compression-resilience-stable deformation features of the support structure was verified during the steep inclined seam mining process.

    验证倾斜煤层开采过程支护结构稳定-压缩-回弹-稳定变形特性

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  • The feasibility of the protective coal pillar mining in the artificial inclined steep drift in the thick (ultra thick) coal seam of a large slope is discussed.

    论证倾斜(厚)煤层伪斜上山保护煤柱回收可行性。

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  • Research on Destruction Mechanism and Supporting in Roadway of the Steep Coal Seam of Taiping Coal Mine;

    一侧采空巷道稳定性不仅支承压力分布有关,而且与煤体破坏程度有关。

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  • Research on Destruction Mechanism and Supporting in Roadway of the Steep Coal Seam of Taiping Coal Mine;

    一侧采空巷道稳定性不仅支承压力分布有关,而且与煤体破坏程度有关。

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