Secondly, on the base of the multiplicity of the geology factors what affect the degree of difficulty of top coal caving of steep seam. It builds a compositor model by means of applying to multiplicity principal component analysis.
其次针对影响急斜煤层顶煤可放性地质因素的多元性,应用多元统计分析理论中主成分分析法,建立顶煤可放性排序模型。
参考来源 - 急斜煤层顶煤可放性因素研究·2,447,543篇论文数据，部分数据来源于NoteExpress
叙述了走向长壁后退式柔性掩护支架采煤法在急斜煤层中的应用及效果。
The paper discusses the application and the effects of the coal mining method with retreating-longwall flexible shield support in steeply-inclined coal seam.
急斜煤层水平分段放顶煤开采与缓斜煤层不同，工作面沿煤层厚度的水平线布置，长度短。
The horizontal section top coal caving in steep seam is different from the gently inclined seam.
新型采煤法的实施有利于避免急斜近距煤层开采的相互影响，提高生产能力和采出率，形成规范的通风系统。
The application of new mining method is benefic to avoiding mutual effect between steeply inclined near coal seams, improving production ability and recovery, forming canonical ventilation system.
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