| 在围压作用下硬包体模型若干力学性质的研究 |
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| 引用本文： | 陈宇坤,王文.在围压作用下硬包体模型若干力学性质的研究[J].华北地震科学,1999,17(2):13-18. |
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| 作者姓名： | 陈宇坤 王文 |
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| 作者单位： | [1]天津市地震局 [2]天津市建筑设计院 |
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| 基金项目： | 中国地震局“九五”重点项目 |
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| 摘 要： | 为全国了解硬包体力学模型的基本力学性质，本文对软、硬匀质介质模型，非匀质软、硬包体模型及含有软弱层或空穴的不连续介质模型进行了三维弹性有限元分析。在常规围压作用下，得到了各具不同特征的位移场、应力场及变形势能密度场，对硬包体模型的发震条件、震源分布及前兆机理进行了探讨性研究。
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| 关 键 词： | 力学模型 有限元 围压 硬包体模型 地震前兆 |
MECHANICS BEHAVIOUR OF HARD INCLUSION UNDER SURROUNDING PRESSURES |
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| Chen Yukun Nie Yongan Cui Xiaofeng.MECHANICS BEHAVIOUR OF HARD INCLUSION UNDER SURROUNDING PRESSURES[J].North China Earthquake Sciences,1999,17(2):13-18. |
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| Authors: | Chen Yukun Nie Yongan Cui Xiaofeng |
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| Abstract: | Scientists over the world support hard inclusion proposed by Mei Shirong in eighties,but papers about its mechanics behavior are little.In this paper,soft,hard homogeneous model,soft,hard inhomogeneous inclusion,and model with weak layer or hole are analyzed by using 3-d linear elastic finite element method under conventional surrounding pressures.Variation of displaceements stress and corresponding strain energy field are obtained.The result and conclusions are valuable to study seismogenetic mechanism etc. |
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| Keywords: | mechanical model Strain energy finite element analysis |
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