| 残煤自燃过程中温度场与应力场耦合作用 |
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| 引用本文： | 王来贵,白羽,牛爽.残煤自燃过程中温度场与应力场耦合作用[J].辽宁工程技术大学学报(自然科学版),2009,28(6). |
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| 作者姓名： | 王来贵 白羽 牛爽 |
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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,阜新,123000 |
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| 基金项目： | 地质灾害防治与地质环境保护国家重点实验室开放基金资助项目，国家自然科学基金资助项目， |
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| 摘 要： | 为了研究采空区残煤自燃过程中温度场与应力场耦合作用下温度、位移与应力的变化规律.应用飞箭有限元分析软件,利用耦合理论方程,编制了相应的二维有限元程序模拟残煤自燃的过程.模拟结果显示:残煤燃烧导致整个岩体结构发生性质上的改变,内部应力场重新分配,进而产生应力释放,回弹效应.在一定范围内,使地表产生变形和移动.有限元模拟与试验结果类似.
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| 关 键 词： | 残煤 自燃 应力场 温度场 耦合作用 |
Coupling effect of temperature field and stress field in residual coal spontaneous combustion |
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| WANG Laigui,BAI Yu,NIU Shuang.Coupling effect of temperature field and stress field in residual coal spontaneous combustion[J].Journal of Liaoning Technical University (Natural Science Edition),2009,28(6). |
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| Authors: | WANG Laigui BAI Yu NIU Shuang |
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| Institution: | WANG Laigui,BAI Yu,NIU Shuang (College of Mechanics and Engineering Science,Liaoning Technical University,Fuxin 123000,China) |
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| Abstract: | A study is conducted to investigate the process of the changes in temperature,displacement and stress under the coupling effect of temperature field and stress field during the residual coal spontaneous combustion.Based on the software FEPG,a program of two-dimensional finite element is developed to simulate the process of spontaneous combustion using coupling theory.Simulation results show that residual coal spontaneous combustion changes the structure of the whole nature of rock and causes the redistribut... |
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| Keywords: | coal spontaneous combustion stress field temperature field coupling effect |
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