介绍了组合折叠式耐高温快速密闭的总体设计方案、工作原理、主要技术经济指标等.重点介绍了其金属支架结构和耐高温面料的研究.

本文介绍了组合撑伞式耐高温快速密闭的总体设计方案.重点介绍了其金属支架结构和耐高温面料的研究.

Study was conducted on the roof of No.3604S4 coal face and the actual mining roadway with fractals, and a few kinds of functional values of subsidence velocity of this face were obtained.The analysis on the functional values showed that they can fully reflect roof movement and provide a new method for the scientific forecast of roof weighing.

介绍了GKM降落伞充气式耐高温快速密闭的结构、工作原理、主要技术经济指标及试验情况.

通过对急倾斜煤层工作面矿压的实测研究,弄清了该工作面的矿压显现规律,为该工作面选取可靠合理的支护方式和加强顶板管理提供了科学依据.