Effect of Flexibility of Geosynthetic Inclusion on The Interface Shear Capacity of Segmental Block System

Electronic journal of geotechnical engineering

Firas A. Salman²  Md. Zahidul Islam Bhuiyan³  Faisal Hj. Ali¹ 

[1] Professor, Department of Civil Engineering, National Defense University of Malaysia, 57000 Kuala Lumpur, Malaysia;Consulting Engineer, Eliot Sinclair & Partners, Christchurch, New Zealand;Graduate Research Assistant, Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia

关键词: Geosynthetics;    interface shear;    segmental concrete block;    retaining wall;    reinforced soil.;   

DOI  :  

来源: Oklahoma State University

【 摘 要 】

Geosyntheticreinforcedsegmentalretainingwalls(GR-SRWs)areinaperiodofdevelopmentandhaveachievedpopularityallovertheworldbecauseoftheirmanyfoldadvantages.Inclusionofageosyntheticlayerattheinterfacehasgreatinfluenceoninterfacefrictionalperformanceofsegmentalretainingwallunits.Thepaperdescribestheinfluenceofgeosyntheticinclusiononinterfaceshearcapacityofsegmentalconcreteunits.AseriesofdirectsheartestswereconductedaccordingtotheexistingASTMandNationalConcreteMasonryAssociation(NCMA)testprotocolstoassessthefrictionalperformanceoftheinnovatedblocksystemwithdifferenttypesofgeosyntheticinclusions.Testresultsrevealthatthepresenceofgeosyntheticlayeratthefacingunit’s(segmentalconcreteunit)interfacereducestheinterfaceshearcapacityanditdependsontheflexibilityoftheusedgeosyntheticreinforcements.Forstiffgeogridinclusion,thereductioninfrictionangleagainstno-inclusionisabout30.9%.Ontheotherhand,thereductionsinfrictionangleforthepresenceofflexiblegeotextileandflexiblegeogridareabout15.4%and2.7%respectively.

【 授权许可】

Unknown