【摘要】 掩护支架采煤法是开采急倾斜厚煤层的有效方法之一,但回采工艺大多使用炮采。为进一步扩大急倾斜厚煤层掩护支架采煤法的适用范固,大幅度地提高技术经济效果,必须实现掩护支架下的采煤机械化。本文在总结分析国内外有关经验、资料的基础上,对掩护支架结构型式的改进和采煤机械化问题进行了初步的探讨,提出了设想方案。更多还原

【Abstract】 Shield mining is one of the effective methods usee for mining in steeply inclined thick coal seams in China and Soviet Union.But the blasting mining is the most commonly used method in extraction operation.In order to extend the range of shild mining method and enhance its technical economy effect to a great cxtent,shield-mehanized coal mining must be adopted.This paper has a preliminary discussion on two key problems-the shield construction and mining mechanizatiou -on basis of summarizing and analysing the relevant experience and data collected in China and from abroad,it also offers several assumed plans.更多还原