从而提出石圪节煤矿残留煤柱顶板岩层具有明显的薄板特征、波动特征的基本顶载荷是支架选型的关键因素及综采回收矿井残留煤柱支架选型的依据。
Thereby it can be seen that the load of Shi ge-jie mine coal pillar roof with sheet character and fluctuate character are the key factors of support selecting.
本发明公开了一种用于车辆的支撑横梁,该支撑横梁具有A柱部分和顶板横梁部分。
A support rail for a vehicle is disclosed that has an A-pillar portion and a roof rail portion.
将顶板视为中点有支承的弹性固结梁,将煤柱视为支座,形成了顶板-煤柱系统。
The roof of cavern is regarded as an elastic beam with support at the midpoint and the coal pillars are regarded as bearings so as to establishing a cavern roof-coal pillar system.
揭示了煤体边缘水平应力和垂直应力峰值不耦合的规律以及巷道顶板应力峰值随煤柱宽度不同而演化的轨迹。
The study manifested the uncoupled pattern of the peak stresses in vertical and horizontal directions, as well as the stress evolution trace varying with pillar width.
阐述了哈拉沟煤矿主采煤层顶板的赋存特征,以现场监测、现场调研为手段,分析了煤层开采、护巷煤柱尺寸及地下水对煤巷顶板稳定性的影响,为今后煤巷顶板稳定性分类及合理支护提供依据。
By taking the on-site monitoring and research as a tool, the influence of coal mining, coal pillar size and underwater on the roof stability of coal roadways is analyzed.
溶洞顶板持续塌陷会形成陷落柱。
控制顶板事故,防范冲击矿压的发生是开采埋深较大的孤岛煤柱工作面的重点和难点。
Controlling roof accidents and preventing the occurrence of bursting underground pressure are the priorities and difficulties to mine deeper isolated pillar face.
文章就顶板稳定性有关的普通顶板、节理化顶板、放顶、顶板加固和人工柱变形破坏等问题,用岩石梁理论进行了分析讨论。
With theory of rock beams, cutting roof, reinforcing roof, manual pillar deformation and failure, and obtains some kinds of knowledge.
采用声发射与声波对云南大姚铜矿盘区开采过程进行监测分析,用声彼仪对支撑顶板的点柱进行监测;
The panel mining process of Dayao Copper Mine, Yunnan was monitored and analysed with acoustic emission(AE)and acoustic wave (AW)methods.
本文提出了一种全新的综放工作面通风系统:顶层瓦斯巷小煤柱外错底层回风顺槽布置,具体是一种放顶煤工作面顶板排瓦斯巷位置的改进。
This paper proposes a new working face ventilation system: top gas tunnel small pillar outside the bottom return air laneway layout, in other words, which is gas tunnel location evolution.
本文提出了一种全新的综放工作面通风系统:顶层瓦斯巷小煤柱外错底层回风顺槽布置,具体是一种放顶煤工作面顶板排瓦斯巷位置的改进。
This paper proposes a new working face ventilation system: top gas tunnel small pillar outside the bottom return air laneway layout, in other words, which is gas tunnel location evolution.
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