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.
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。
This paper analyzes the success application influence factors about the roof caving technology of cantilever support and summarized it's main factors.
对影响悬移支架放顶煤技术成功应用因素进行了系统分析，并总结出了其主要影响因素。
Forward support bolt combined with roop rock by bolting can play a roll of combined beam, which can prevent roof rock caving immediately after explosion.
超前支护锚杆锚固后与顶板岩石构成一体，这样使超前锚杆形成组合梁作用，放炮后，能够阻止顶板岩石冒落。
This paper introduces the design of light-duty roof caving coal hydraulic support equipped with flat tramcar and transportation on ground and under ground.
介绍轻型放顶煤液压支架(下文简称轻放支架)配套平板车的设计过程及轻放支架在煤矿地面、井下的运输过程。
In the light of analogue test in laboratory, the stability of roof of fully mechanized working face with top coal caving is studied during withdrawing support at stop line.
通过实验室相似模拟试验，对综放面收尾撤架空间的顶板稳定性进行了研究。
This paper analysed the cause of falling roof, raised some methods of roof management, such as adjusting mineral blast, bolt support and prediction of roof caving. It ensured safety in mining.
本文分析了顶板冒落的原因，提出了顶板管理方法，如调整落矿工艺，顶板锚网支护和冒顶预测预报，结果保证了采矿的安全。
This paper analysed the cause of falling roof, raised some methods of roof management, such as adjusting mineral blast, bolt support and prediction of roof caving. It ensured safety in mining.
本文分析了顶板冒落的原因，提出了顶板管理方法，如调整落矿工艺，顶板锚网支护和冒顶预测预报，结果保证了采矿的安全。
应用推荐