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Research on Equivalent Stress Properties of Water-Sensitive Loess during Moistening

Author: ZhangJiWen
Tutor: XieDingYi
School: Xi'an University of Technology
Course: Geotechnical Engineering
Keywords: Water sensitivity loess Deformation equivalence principle Humidifier stress
CLC: TU444
Type: Master's thesis
Year: 2004
Downloads: 152
Quote: 6
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Abstract


Loess areas of engineering practice in the vast majority of the root causes of the accident can be traced back to the of loess foundation soil water content change , while the of loess deformation and strength with the water content of the change is a dynamic process of change , simply a water content or saturation immersion in water under the conditions of loess characteristics can not meet the needs of the engineering practice . Thick layer of loess , saturated flooding probability smaller areas , collapse deformation design with fully saturated wet , and no doubt will give the project an unnecessary waste , loess compression deformation and moistening deformation unify be considered undoubtedly progressive significance of engineering construction of the loess area . Loess collapsibility incentive for power and water . Under certain stress level in the steady state of deformation of collapsible loess , only increase the stress level or water content , both will deform increase even strength failure phenomenon . Therefore, the single purpose of the consequences of the deformation , flooding humidifier collapsible loess in a certain state of stress is applied to the loess additional force load equivalent role . In this paper, based on the large number of documents on the humidifier state the humidifier level , humidifiers history , the humidifier path with increasing charge state of stress , stress level , stress history , stress path aspects of similarity analysis , presented for the first time humidifiers stress concept and its theoretical basis , and by the the humidification conditions under the compression , shear and triaxial test and deformation equivalence principle reveals humidifier stress and loess initial dry severe initial regularity of the water content, humidifiers stress, the humidifier water content changes , humidifiers and other stress calculation expression , and finally the reasonableness of humidifiers and other stress resulted in a comprehensive examination from both qualitative and quantitative aspects , included in the stress- strain research and development \Keywords: water sensitivity loess stress deformation equivalence principle humidifier etc.

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CLC: > Industrial Technology > Building Science > Soil mechanics,foundation engineering > Various types of soil and foundation > Loess and foundation
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