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黏性土力学强度与微结构动态环境能场内在关联分析
引用本文:王伟,冯小平,邹昀,王俭. 黏性土力学强度与微结构动态环境能场内在关联分析[J]. 岩土力学, 2006, 27(12): 2219-2224
作者姓名:王伟  冯小平  邹昀  王俭
作者单位:江南大学 土木工程系,江苏 无锡 214122
摘    要:通过两组不同含水率的黏性土分别在快浸、慢浸、冻融、不同应力条件下的试验,讨论了黏性土力学强度特性与其微结构动态环境能场的本质关联,分析研究了黏性土微结构动态环境能场、外部环境条件变化与其内在介质环境变化之间的密切关联。结果表明,水的浸入对土的微结构特性影响至关重要,对土的抗剪强度的影响明显高于土的变形特性,偏湿土和受振动的土击数越多,对土的初始结构损伤越厉害,但土的后期结构强度有所提高。分析表明冻融对土的微结构破坏最为严重,其次是慢浸。

关 键 词:黏性土  微结构  动态环境能场  力学强度特性  
文章编号:1000-7598-(2006)12-2219-06
收稿时间:2005-04-18
修稿时间:2005-04-18

Analysis of intrinsic correlation of mechanical strength with microstructure dynamic environmental energy field of clayey soils
WANG Wei,FENG Xiao-ping,CHEN Yan,WANG Jian. Analysis of intrinsic correlation of mechanical strength with microstructure dynamic environmental energy field of clayey soils[J]. Rock and Soil Mechanics, 2006, 27(12): 2219-2224
Authors:WANG Wei  FENG Xiao-ping  CHEN Yan  WANG Jian
Affiliation:Department of Civil Engineering, Jiangnan University, Wuxi 214122, China
Abstract:Through two group tests on clayey soils with different water contents under Quick-soaking,slow-soaking,freezing-thawing,different stresses;the following studies were performed: the relationship between mechanical strength and microstructure dynamic environmental energyfield of clayey soil;the interrelation between the microstructure dynamic environmental energyfield;changing of external environment and medium environmental intrinsic of clayey soil.The results show that the water soaking is vital to microstructure,its influence on shear strength is higher than it on deformation properties of clayey soil obviously;when number of blows of more wet and vibrated soil increased,the damage of initial construction increased,but the later strength of construction increased for a little.Analysis indicates that the freezing-thawing is most important to failure of microstructure of soil;the second is slow-soaking.
Keywords:clayey soil   microstructure   dynamic environmental energy field   mechanical strength properties
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