Effect of Granular Material on the Rate of Consolidation of Peat Soil

Electronic journal of geotechnical engineering

Zulkifli Abu Hassan¹  Muhamad Azani Yahya²  Mohd Nazrin Mohd Daud²  Mohammad Shahir Shaharuddin² 

[1] Department of Civil EngineeringNational Defence University of [e-mail];Department of Civil EngineeringNational Defence University of Malaysia

关键词: Granular material;    peat soil;    oedometer;    compression coefficient;    rate of consolidation;    compression index;   

DOI  :  

来源: Oklahoma State University

【 摘 要 】

Constructionworksonpeatlandsarealwaysdifficult;manyincidencesofbuildingsandinfrastructuressubsidenceafterconstructionworkscompletedhavebeenreported.Theseproblemsarecommononareasoverlainwithpeatsoils.Effortsinsolvingtheseproblemsinvolvemethodsthathavebeenwidelypracticesuchasmixingortreatingtheproblematicsoilswithothermaterialswiththeintentiontoimprovethestrengthandstiffnessofthesoil.Inmanycasescementorcementcombinationwithdifferentby-productsfromindustrialprocessesareoftenusedaschemicalstabilizerstoimprovegeotechnicalpropertiesofpeatsoilthroughmixingprocess.Thisstudyhowever,investigatedtheeffectofdifferentpercentagesofsandonpeatsoilwithrespecttotheirrateofconsolidationandcompressionratios.Theattemptistoaddresstheeffectivenessinusinggranularmaterialasastabilizersuchassandthatdoesnotconstitutepozzolanicreactionsinstabilizingpeatsoil.Itwasfoundthatthecoefficientofconsolidation(Cv)ofsoilspecimenswithadditionofsandarehighercomparedtotheuntreatedpeatandspecimenwith50%sandreducedabout70%insettlementcomparedtountreatedspecimen.Thetimetakenforthesoiltoconsolidatealsodecreasedassandcontentincreaseswheretherateofconsolidationincreasedwhenthesandcontentincreases.WhileCompressionindex(Cc)value,thatsignifiesthecompressibilityofasoilwasalsoreducedto90%inspecimenwith50%sandcontent.

【 授权许可】

Unknown