The mechanism of water inrush from coal floor in longwall face is simulated by the similar material tests.
利用相似材料模拟试验,模拟了采场底板突水机理。
Using hydraulic supports in heavy grade longwall face with sublevel caving, anti-topple and antiskid are the key factors.
在大倾角倾斜煤层进行综放开采,支架的防倒、防滑成为决定放顶煤开采成功与否的关键。
The mining practice of sub-level longwall face in Yima coal mine of Henan Province was introduced. These techniques could be used in coal mines with similar condition.
开采结果表明,论文中提出的对巖层结构的认识和采取的控制技术是正确的,可以在条件相似的矿区推广应用。