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- This technique has been used successfully in the air-return gate oJ" 1310 fully mechanized roof coal caving face in Zhangcun Coal Mine. 该项研究在漳村1310综放面回风巷的工程实践中得到了成功应用和检验。
- Study on Preventing Roof Coal Caving in Big Section Bottom Driving 大断面沿底巷道掘进防顶煤冒落研究
- An artificial neural network for distinguishing the difficulty degree of roof coal caving of steep seam 急倾斜煤层顶煤可放性识别的神经网络模型
- Roof coal caving mining 放顶煤回采
- teclmology of Roof Coal Caving 放顶煤技术
- roof coal caving 放项煤开采
- The key point of Grand pressure law on working face of seam top coal caving method,the method of dealing with them,firstly caving and end caving of working face roof control are discussed. 论述了中厚煤层综采放顶煤工作面矿压显现规律和顶板管理的特点,指出了综放工作面顶板管理的方法,以及工作面初采、收作时顶板管理的要点。
- By using UDEC program to simulate the roof stability in face area under different top coal in fully-mechanized mining with top coal caving, simulated model is founded, simulated projects are designed and mechanical parameters are set. 运用UDEC数值模拟程序,以不同顶煤条件下的综放开采端面顶板稳定性模拟为例,建立了数值模型、设计了计算方案、设定了力学参数;
- Mechanical model for the elastic thick outrigger of roof coal is set up. 建立了顶煤弹性深梁力学模型,分析了顶煤应力分布及顶煤破坏形式。
- blasting mining with caving of roof coal 炮采放顶煤
- fully mechanized coal face with caving of roof coal 综放工作面
- Finally, the paper considers that the fully mechanized coal caving mining is helpful to control outburst hazard. 认为:具突出危险性的厚煤层采用综采放顶煤开采法对消突是有积极作用的.
- fully mechanized mining with caving of roof coal 放顶煤开采
- fully mechanized face with caving of roof coal 综放工作面
- Practices have proved that quick advancing techniqe is applicable in isolated unmined area Comprehensive top coal caving face. 实践证明,孤岛综放工作面快速推进技术是可行的。
- According to the conditions of seam No.5 in Shifengshan Coal Mine,longwall face roof coal drawing method is chosen. 通过对峙峰山煤矿5号煤采煤方法的设计,提出了采用综采放顶煤法回采5号煤。
- This article introduced applications,observation and research's actuality and developing trend of fully mechanized top coal caving mining under water. 介绍放顶煤开采技术在水体下采煤领域中的应用情况、观测研究现状及其发展趋势。
- The law of top coal movement on a fully mechanized longwall face with top coal caving wasanalysed thoroughly on the basis of field observation andfinite element calculation. 本文根据现场观测、数值计算以及理论分析,详细阐述了放顶煤采场的顶煤变形运动规律,指出了顶煤变形运动可划分成四个区:顶煤变形区,压裂区,松动区和放落区。
- In early application of fully mechanized top coal mining,Spontaneous fire took place when the backout of fully mechanized top coal caving face was stopped mining. 在应用综放开采的初期,每当综放工作面停采回撤时,就会发生自燃发火。
- She and I can't live under the same roof. 她和我不能住在一起。