Soil Nail Wall Design Optimization by Geotechnical Applications and Geophysical Techniques

dc.contributor.authorHettiarachchi, DAI
dc.contributor.authorFernando, HRW
dc.contributor.authorNanthahoban, E
dc.contributor.authorSameer, STM
dc.contributor.authorAbeysinghe, AMKB
dc.contributor.authorPremasiri, HMR
dc.contributor.authorSamaradivakara, GVI
dc.date.accessioned2016-08-22T04:05:26Z
dc.date.available2016-08-22T04:05:26Z
dc.date.issued2016-08-22
dc.description.abstractSoil nailing is a soil reinforcement technique which is used to stabilize slopes by insertion of slender elements, called nails. When steep slopes are to be stabilized by soil nailing, practical problems are encountered related to subsurface investigations, as drilling machines cannot be placed on such slopes. Hence, bedrock levels cannot be determined in advance, which is disadvantageous to produce cost effective designs. This research was focused on studying the methods that can be used for soil nail wall design optimization by applying geotechnical and geophysical techniques. The study was based on an unstable slope situated near Victoria dam. The physical properties of soil were determined by direct shear tests, and stability analysis was done by means of “Slope-W” software. Determination of the profile of weathered quartzite layer, inter-beded with Charnokite bands was the major emphasis of this research. Three techniques were used: Ground Penetration Radar (GPR), Earth Resistivity Measurements and Geological Mapping. This investigation scientifically showed that the existing slope is unstable, and to be protected. Further, it was identified in advance that the basement rock cannot be encountered at designed depths of the soil nails, which was subcequently proven as correct by the ongoing drilling for soil nail installations.en_US
dc.identifier.conferenceProceedings of ERE 2016en_US
dc.identifier.departmentDepartment of Earth Resources Engineeringen_US
dc.identifier.emailamkb@uom.lken_US
dc.identifier.facultyEngineeringen_US
dc.identifier.pgnosp.87-92en_US
dc.identifier.placeColomboen_US
dc.identifier.proceedingProceedings of the ERE 2016 Conference on Earth Resourcesen_US
dc.identifier.urihttp://dl.lib.mrt.ac.lk/handle/123/11904
dc.identifier.year2016en_US
dc.language.isoenen_US
dc.subjectGeological Mappingen_US
dc.subjectGround Penetration Radar
dc.subjectResistivity Survey
dc.subjectSoil Nailing
dc.subjectSlope Stability Analysis
dc.titleSoil Nail Wall Design Optimization by Geotechnical Applications and Geophysical Techniquesen_US
dc.typeConference-Full-texten_US

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