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- 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. 用分形对3604S4工作面和回采巷道顶板进行了研究,得到了该工作面下沉速度的几种分维值。
- Study on Bolting Support of Coal Side in Actual Mining Roadway 回采巷道煤帮锚杆支护技术研究
- Research on actual mining roadway of roof bolted roadway 锚杆巷道沿空留巷研究
- Research on the design of actual mining roadway bolt support in Zhengyang mine 正阳矿回采巷道锚杆支护设计的研究
- Keywords flat top;metal support;actual mining roadway;contractibility; 平顶形;金属支架;回采巷道;可缩性;
- The optimum study of the angle of the truss-bolt supporting the roof in the actual mining roadway 回采巷道顶板桁架锚杆支护角度的优化研究
- Full bolt-mesh supporting with the coal roof for the actual mining roadway driving along seam floor 回采巷道沿底掘进留顶煤全锚网支护
- RESEARCH ON PARAMETERS OF BOLTING (CABLING) WITH WIRE MESH IN ACTUAL MINING ROADWAY BY CAVING METHOD 放顶煤回采巷道锚网(索)支护参数研究
- Modification of combined beam theory and its application in actual mining roadway bolting 锚杆支护组合梁方法的改进及其应用
- Support Test of Roof-bolting with Cable Anchor Mesh Used in an Actual Mining Roadway with Large-sectional Composite Roof 大断面复合顶板回采巷道锚杆锚索网支护试验
- Keywords bolt support;surrounding rock loose circle;dyn amic pressure;coal roadway;roof;actual mining roadway;reliability; 锚杆支护;围岩松动圈;动压;煤巷;顶板;回采巷道;稳定性;
- actual mining roadway 回采巷道
- Study on the strata and fracture features of surrounding-rocks and the bolting effect in actual mining roadways 回采巷道围岩结构与裂隙分布特征及锚杆支护机理研究
- This paper summarizes the characters of mining roadway layout adopted in thick coal-seam mining in Xinglongzhuang coal mine . 总结了兴隆庄煤矿厚煤层开采先后所用“采区巷道布置方式”特点与存在的问题。
- Gas accumulation in a mine roadway is a prerequisite condition for the occurrence of gas accidents. 矿井巷道瓦斯积聚是瓦斯灾害事故发生的前提条件。
- This paper introduces a method used to forecast the attitude and character of buried fault and its position and displacement in front of mining roadway. 介绍了一种利用断层影响带参数对掘进巷道前方隐伏断层的产状、性质、断层位置、断距进行超前预测的方法。
- TEM has the advantage of expedition, great efficiency, convenience, which is an effective way for the request of mine roadway leading prospecting. 瞬变电磁法作为一种快速、高效、方便的探测方法，可以很好的满足矿井巷道超前预测、预报的要求。
- Taking the maintenance technology for a mine crosscut roadway under a mining face in above seam in a mine,the paper analyzed the cause of the mine roadway failure. 以某矿石门巷道受上部煤层工作面跨采影响条件下的维护技术为例,对巷道破坏的原因进行了分析,从提高围岩强度的角度出发,提出了在原支护条件下对被保护巷道进行注浆加固的方案。
- The prerequisite of rock burst occurrence is that the elastic energy in coal and rock mass around coal mine roadway and stope has accumulated enough. 冲击地压发生的前提是矿山井巷和采场周围的煤岩体中储存了足够的弹性能。
- Based on the multiple problems existing in design of bolting support in Datun Mining Area nowadays, the parameters of bolting (cabling) with wire mesh in actual mining ... 在综合讨论大屯矿区现用锚网支护设计方法尚存问题的基础上,对厚煤层放顶煤沿底回采巷道的锚网(索)支护参数设计方法进行了全面分析。
