| 非均质随机分布对岩石热破裂影响的数值试验 |
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| 引用本文： | 康健,毕秀国,刘超.非均质随机分布对岩石热破裂影响的数值试验[J].岩土力学,2008,29(Z1):491-494. |
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| 作者姓名： | 康健 毕秀国 刘超 |
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| 作者单位： | 大连工业大学 信息科学与工程学院，大连 116034 |
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| 摘 要： | 采用随机固热耦合数学模型及有限元分析方法，仅将热膨胀系数和热传导系数作为随机变量，在正态和韦泊两种随机分布下，采用平面应变模型，对热应力引起的岩石热破裂的变化进行了详细研究，模拟了岩石热破裂的整个过程，揭示了概率分布形式、分布参数m对岩石热破裂的影响，讨论了岩石热破裂与时间t的关系，温度与参数m的关系，温度与时间的变化规律，并研究了热破裂率随时间和温度的变化规律。
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| 关 键 词： | 随机分布 岩石热破裂 数值试验 热破裂率 |
| 收稿时间： | 2008-06-08 |
Numerical tests of influence of heterogeneous random distribution on thermal cracking of rock |
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| KANG Jian,BI Xiu-guo,LIU Chao.Numerical tests of influence of heterogeneous random distribution on thermal cracking of rock[J].Rock and Soil Mechanics,2008,29(Z1):491-494. |
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| Authors: | KANG Jian BI Xiu-guo LIU Chao |
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| Institution: | School of Information Sciences and Engineering, Dalian University of Industry, Dalian 116034, China |
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| Abstract: | Using random solid-heat coupled mathematical model and FEM,only considering thermal dilatability and thermal conduction as random variables,plane stain model is adopted to analyze the changes of thermal cracking of rocks caused by thermal stress;and the whole process of thermal cracking of rocks with Gaussian distribution and Weibull distribution laws is simulated.The influences of probability distribution and distributed parameter m on thermal cracking of rocks are pointed out;the relationships between the... |
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| Keywords: | random distribution thermal cracking of rock numerical test thermal cracking rate |
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