同时研究本分类系统软件在综采放顶煤工作面顶煤的可放性诊断、支架选型和放煤机构设计中的应用。
And study the classification system application in diagnosing the caving and drawing characteristics of top-coal, choosing support and designing drawing mechanism.
对综采放顶煤工作面自燃发火的原因进行了分析，阐述了所采取的综合性预防措施，及取得了良好的效果。
The reason of the spontaneous combustion at fully mechanized workface with top caving are analyzed. The comprehensive preventing measures are elaborated. The good effect is obtained.
在综采放顶煤工作面顺槽掘进过程中，由于顺槽煤层顶板松动破碎，并且顺槽采用矩形断面，顶板跨距较大，不利于巷道支护。
During the drivage of main-gate in long-wall face with fully mechanized caving mining, the gate is hard to support due to its loose and broken roof, large cross-section and long span.
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