| 冻土蠕变的渐进屈服准则 |
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| 引用本文： | 王正贵,马巍.冻土蠕变的渐进屈服准则[J].冰川冻土,1996,18(2):155-161. |
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| 作者姓名： | 王正贵 马巍 |
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| 作者单位： | 兰州大学力学系，中国科学院兰州冰川冻土研究所冻土工程国家重点实验 |
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| 摘 要： | 基于冻土蠕变的现象分析表明，冻土蠕变的破坏是由于冻土中非弹性变形积累的结果，在冻土的任何变形阶段都存在着非弹性变形。非弹性变形的积累在一定条件下导致了冻土渐进屈服的出现，渐进屈服反过来又促进了冻土蠕变的进一步增加。
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| 关 键 词： | 冻土 蠕变 渐进屈服 |
A Progressive Yield Criteria on Creep of Frozen Soil |
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| Wang Zhenggui ,Ma Wei ,Sheng Yu and Wu Ziwang.A Progressive Yield Criteria on Creep of Frozen Soil[J].Journal of Glaciology and Geocryology,1996,18(2):155-161. |
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| Authors: | Wang Zhenggui Ma Wei Sheng Yu and Wu Ziwang |
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| Institution: | Wang Zhenggui 1,Ma Wei 2,Sheng Yu 2 and Wu Ziwang 2 |
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| Abstract: | Based on of analysis creep of frozen soil, it is considered that the creep failure of frozen soil is caused by accumulation of non elastic deformation. In any deformation stage of frozen soil, threr exists non elastic deformation whose acculumation causes appearence of the progressive yield under certain condition and in trun promotes further increase in creep. Accordingly, considering frozen soil as a viscoelastic plastic material, this paper gives a progressive yield criteria to describe the creep of frozen soil, meanwhile a creep equation describing the whole process of creep is obtained. |
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| Keywords: | progressive yield criteria creep frozen soil |
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