| 节理岩体损伤模型的有限元分析 |
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| 引用本文： | 刘新波,盛建龙.节理岩体损伤模型的有限元分析[J].武汉科技大学学报(自然科学版),1997(4). |
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| 作者姓名： | 刘新波 盛建龙 |
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| 作者单位： | 武汉冶金科技大学资源工程系 |
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| 摘 要： | 将岩体中固有的初始节理损伤考虑成宏观损伤场，通过引入损伤张量模拟岩体的多裂隙性。损伤张量由节理组的实测数据确定，并引入有效应力来计算节理岩体的力学效应。编制了损伤模型的平面非线性有限元程序，并采用损伤模型和常规有限元模型的有限元程序对某矿山边坡进行对比计算分析。结果表明，损伤模型的有限元解析能反映节理岩体的各向异性。
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| 关 键 词： | 节理岩体 各向异性 损伤张量 有限元 |
FEM Analysis of Damage Module for Jointed Rock Mass |
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| Liu Xinbo,Engineer.FEM Analysis of Damage Module for Jointed Rock Mass[J].Journal of Wuhan University of Science and Technology(Natural Science Edition),1997(4). |
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| Authors: | Liu Xinbo Engineer |
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| Institution: | Liu Xinbo,Engineer,Department of Resources Engineering,Wuhan Yejin University of Science and Technology,Wuhan 430080,China. Sheng Jianlong |
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| Abstract: | In this paper,the original joint damage intrinsic in rock mass is considered as macrodamage field.The multi cleavage behaviour of rock mass is simulated by introducing the damage tensor which is determined from in situ data of joint sets,and the net stress is also introduced to account the mechanical effects of jointed rock mass.A plane nonlinear program of damage module is compiled.The FEM program of damage module and conventional finite element module are used to calculate and analyze a mining slop.The result shows that FEM analysis of damage module can reflect the anisotropy of jointed rock mass. |
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| Keywords: | jointed rock mass anisotropy damage tensor FEM |
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