收稿日期: 2015-01-17
网络出版日期: 2016-10-31
基金资助
上海市自然科学基金资助项目(13ZR1416200); 上海市教委科研创新基金资助项目(13YZ018)
Analysis of one-dimensional consolidation characteristics in unsaturated soil under line loads
Received date: 2015-01-17
Online published: 2016-10-31
秦爱芳, 葛航 . 线性加荷情况下非饱和土层一维固结特性分析[J]. 上海大学学报(自然科学版), 2016 , 22(5) : 624 -636 . DOI: 10.3969/j.issn.1007-2861.2015.01.002
Semi-analytical solutions of excess pore-air pressure, excess pore-water pressure and degree of consolidation are obtained based on the Fredlund’s one-dimensional consolidation theory for unsaturated soil. The research object is a layer of unsaturated soil whose top surface is penetrable, and the bottom surface impenetrable to water and air. With a typical example, rules of excess pore-air pressure, excess pore-water pressure and degree of consolidation changing with time in different soil depth and ratio of permeability coefficient of air and water are analyzed. The linear elastic and viscoelastic situations are calculated, analyzed and compared. The conclusions are useful in the research of unsaturated soil consolidation characteristics and practical engineering problems about consolidation under line loads.
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