| 层状破裂顶板的变形分析和计算 |
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| 引用本文： | 戴兴国,钱鸣高.层状破裂顶板的变形分析和计算[J].矿冶工程,1995,15(1):12-16. |
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| 作者姓名： | 戴兴国 钱鸣高 |
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| 作者单位： | [1]中南工业大学 [2]中国矿业大学 |
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| 摘 要： | 受采动裂隙和节理切割的层状破裂顶板不能视为弹性连续梁，其力学结构应力岩块相互挤压而成的压力拱。本建立一种用于这类顶板变形计算的无张纯压拱力学模型，并据计算实例讨论这类顶板桡曲变形特性，分析了不产生屈曲，压溃，剪切滑移及岩梁形成稳定挤压拱的条件。
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| 关 键 词： | 岩梁 成拱 屈曲破坏 层状破裂顶板 变形分析 |
A DEFLECTION ANALYSIS AND CALCULATION OF BEDED AND FRACTURED KOOFS |
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| Dai Xingguo.A DEFLECTION ANALYSIS AND CALCULATION OF BEDED AND FRACTURED KOOFS[J].Mining and Metallurgical Engineering,1995,15(1):12-16. |
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| Authors: | Dai Xingguo |
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| Abstract: | No beded and fractured roof can be treated as an elastic continuous beam,when it consists of rock blocks formed by cross joints and fractures.In fact,it,as a mechan-ic structure , is an arch.In the present work a mechanical model(no-tension arch ) has beendeveloped for calculating the deflection of roofs In this paper, a study in detail is made onthe deflective behaviour of the roof and condition of the formation of a stable compressedarch without buckling, compression and shear failures. |
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| Keywords: | Fractured roof Rock beam Arching Buckling failure |
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