One dimensional Consolidation with a Consideration of Non Darcy Flow and Self gravity Stress

doi:10.3969/j.issn.0253-374x.2012.04.007

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One dimensional Consolidation with a Consideration of Non Darcy Flow and Self gravity Stress
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                        10.3969/j.issn.0253-374x.2012.04.007
                    
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Abstract:

基于饱和黏土中渗流的非Darcy特性和变形的非线性，考虑土体埋深和自重应力的影响，修正了Terzaghi 1维固结方程.为简化计算，建立了以有效应力为求解对象的非线性控制方程，并采用有限差分法建立隐式差分格式对方程进行求解.探讨了综合考虑土体渗流非Darcy特性、埋深、自重应力和变形非线性时的固结特性.计算结果表明：考虑土体自重应力时的孔压消散速率和地基沉降速率都要大于不考虑土体自重时的情况；综合考虑土体自重、非Darcy渗流特性和变形非线性的孔压消散速率和地基沉降速率都可能出现前期快于Terzaghi固结理论解而后期相反的情况.

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JIU Yongzhi, LIU Zhongyu, YUE Jinchao, SUN Liyun. One dimensional Consolidation with a Consideration of Non Darcy Flow and Self gravity Stress[J].同济大学学报(自然科学版),2012,40(4):0541~0548

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Received:February 28,2011
Revised:January 06,2012
Adopted:November 21,2011
Online: April 27,2012
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