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.
以双鸭山矿务局东荣三矿东九采区综采工作面为研究对象，进行采区巷道监测设计。
Take the Shuangyashan mining bureau east nine to picking zone the working surface as the object of study the third coal mine of Dongrong, carries on the tunnel picking zone monitor design.
介绍了国内外长壁综采工作面的尺寸、设备、回采巷道布置及工作面单产的现状及发展趋势。
The paper introduced the size, equipment, gateway arrangement and production of the fully mechanized longwall coal mining faces at home and abroad.
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