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Function of Palm Fiber in Stabilization of Alluvial clayey soil in Yangtze River Estuary

Journal of Renewable Materials 2021年第4期9卷 767-787页

作者： Jili Qu Hao Zhu Department of Civil Engineering School of Environment and ArchitectureUniversity of Shanghai for Science and TechnologyShanghai200093China

Palm fiber is one of the favorable materials used in stabilization of soft soil in geotechnical engineering projects in recent years due to its nature of sustainability,no harm to the environment,biodegradability,availability and costeffectiveness in the context of widespread appeal from the world for returning to nature and protecting the earth our *** paper is aimed at exploring the mechanical performance of shanghai clayey soil reinforced with palm *** unconfined compressive tests are carried out on samples treated with palm fibers of different lengths and contents,and the unconfined compressive strength(UCS),ductility rate(DR),secant modulus(SM),energy absorption capacity(EAC)and failure pattern(FP)of the reinforced and unreinforced samples have been analyzed with regard to their relationship with palm fiber contents and *** multiple regression,grey correlation and general correlation relationship analysis are applied to the resultant test data so as to obtain the mathematical and statistical equation of related soil *** has been concluded from the analysis that the unconfined compressive strength,ductility and energy absorption capacity of reinforced soil will increase with the increase in content and length of palm fiber,which are maximized when palm fiber content and length are 0.4%and 15 mm,*** the contrary,the secant modulus of reinforced soil decreases considerably with content and length of palm fiber as a ***,the failure pattern also changes from brittle to ductile gradually with the content and length of palm *** data provided by the analysis of reinforced soil can be referred to and used for the related geotechnical engineering in the *** the mathematical model obtained from the statistical regression is significantly meaningful because it can be used to predict the soil performance without the need for doing the additional tests,with saving in cost and ***’s more,the applic

关键词： Palm fiber shanghai clayey soil UCS EAC multiple regression analysis

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