| 放顶煤工作面顶煤介质状态分析 |
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| 引用本文： | 王金安.放顶煤工作面顶煤介质状态分析[J].西安科技大学学报,1991(4). |
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| 作者姓名： | 王金安 |
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| 作者单位： | 西安矿业学院采矿工程系 |
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| 摘 要： | 本文根据现场实测、相似模拟实验和有限元计算结果,对放顶煤工作面推进过程中,顶煤移动变形规律和介质状态转化机制进行了综合分析研究;论述了顶煤介质状态转化对工作面支架的作用,不同强度顶煤在工作面控顶区上方的性态分布和放顶煤线处的垮落特点;提出了适应顶煤介质状态转变的支架结构形式及力学特性,不同顶煤条件下的放顶煤方案。
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| 关 键 词： | 放顶煤开采 连续介质 裂隙介质 |
ANALYSIS OF ROOF COAL MEDIUM STATE IN CAVING ROOF COAL MINING FACE |
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| Wang Jinan.ANALYSIS OF ROOF COAL MEDIUM STATE IN CAVING ROOF COAL MINING FACE[J].JOurnal of XI’an University of Science and Technology,1991(4). |
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| Authors: | Wang Jinan |
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| Abstract: | Based on the results of field measurement, model test and FEM calculation, the law of roof coal movement-deformation and the transformation mechanism of roof coal medium state have been comprehensively studied and analysed.The loading affection on supports in process of transformation. the roof coal behaviour on the face zone and its caving character at cavity edge are expounded. Conclusively, the paper points out the proper support structure form. the mechanics properties to fit in with roof coal medium state and the roof coal caving scheme for various conditions of roof coal. |
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| Keywords: | mining with caving roof coal continous mediuum fracture medium |
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