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《Journal of Zhejiang University(Engineering Science)》 2007-01
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Experimental study on mechanical properties of stabilized artificial organic soil

XU Ri-qing~1,GUO Yin~1,LIU Zeng-yong~2(1.Institute of Geotechnical Engineering,Zhejiang University,Hangzhou 310027,China;2.Shaoxing Highway Administration,Shaoxing 312000,China)  
In order to study the influence of organic matter on the physical and mechanical properties of stabilized soil,and the effect of XGL2005 on stabilizing organic soil,artificial organic soil was obtained by adding humic acid into soft soil,and liquid-plastic limit tests were conducted on the artificial organic soil with different content of humic acid.Unconfined compressive strength tests were carried out on cement stabilized soil and cement admixed with XGL2005 stabilized soil respectively.Test results indicated that the liquid limit of artificial organic soil increased exponentially,whose plastic limit increased of linearly with the humic acid content;the strength of stabilized soil decreased logarithmetically with increase organic matter content.On the contrary,the strength of stabilized soil increased in the form of power function as stabilization agent content increased.The strength of cement stabilized organic soil was reinforced greatly by adding the stabilizer XGL2005to reduce the adverse effect of organic matter.Based on the law obtained from the test,a prediction model was established by regression analysis.The model considers not only the positive influence of the curing time,the content of the cement and stabilization agent,but also the adverse influence of organic matter on the strength of stabilized soil.
【Fund】: 国家自然科学基金资助项目(50678158)
【CateGory Index】: TU411.3
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