| 用ANSYS分析煤体在燃烧前后边坡稳定性 |
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| 引用本文： | 王毅,王来贵.用ANSYS分析煤体在燃烧前后边坡稳定性[J].辽宁工程技术大学学报(自然科学版),2007(Z2). |
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| 作者姓名： | 王毅 王来贵 |
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| 作者单位： | 辽宁工程技术大学力学与工程学院，辽宁工程技术大学力学与工程学院 辽宁 阜新 123000，辽宁 阜新 123000 |
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| 基金项目： | 国家自然科学基金重点资助项目(504334020)，高等学校博士学科点专项科研基金(20040147003)，教育厅重大基础研究资助项目(202182055) |
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| 摘 要： | 为了解决边坡在燃烧后稳定性遇到的挑战,依据岩石力学和弹性力学理论,建立了煤层燃烧的应力应变模型。将岩体简化为弹塑性煤层的底部与岩体底边的交界出现了应力集中现象,考虑边坡沿弧形滑动。分析岩体的位移和应力分布规律,建立边坡稳定性的条件。岩体介质作为一种非线形材料,具有非线形的应力应变关系,采用基于弹塑性本构模型的有限元法,借助计算软件ANSYS求解岩体中煤层在燃烧前后对边坡稳定性的影响。
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| 关 键 词： | 有限元分析 ANSYS 应力应变 稳定性 |
Analysis of side slope stability of coal body before and after with ANSYS |
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| WANG Yi WANG Lai-gui.Analysis of side slope stability of coal body before and after with ANSYS[J].Journal of Liaoning Technical University (Natural Science Edition),2007(Z2). |
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| Authors: | WANG Yi WANG Lai-gui |
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| Abstract: | In order to solve the side slope stability after burning,according to rock mechanics and the elasticity theory stress-strain model of the coal seam in burning is built.Rock is simplified into the base with elastic-plastic coal seam and in the rock base border the phenomenon of the stress concentration appears.The side slope in sliding along the arc is considered.Analytical solution is given for rule of rock displacement and stress distributions and forming and developing of the crack in interface layer.A condition of the side slope stability is set up.The rock medium is looked upon as a kind of non-linear material.It has the relation of the non-linear stress-strain.Using this elastic-plastic construction model of the finite element method,analyze the side slope stability of the coal before and after burning is analyzed with ANSYS. |
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| Keywords: | finite element analysis ANSYS stress-Strain stability |
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