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Stabilization of cut slopes in highways by surface drainage and vegetation

Show simple item record Dharmasena, RKN Kulathilaka, SAS 2018-06-12T20:34:03Z 2018-06-12T20:34:03Z
dc.description.abstract At number of locations in Sri Lanka, deep cuts were made in natural slopes for the construction ' of expressways. These slopes are made of residual soil and the parent rock is metamorphic. In most cases the v ground water table is low and significant matric suctions prevail in the soil during dry periods of weather. - With the infiltration of rainwater, the matric suction will be lost and even perched water table conditions could be developed. The presence uf surface protecting vegetation and drainage measures such as berm drains will reduce the infiltration. Deep roots present will provide a nailing effect. This behavior was studied by modeling the process by Geoslope SEEP/W programme. Stability of the slope was assessed by the SLOPE/W after incorporating the changes in the pore pressure regime. The results of the study illustrated the effectiveness of surface protecting vegetation and deep roots in maintain reasonable safety margins in the slope during periods of heavy rain. en_US
dc.language.iso en en_US
dc.title Stabilization of cut slopes in highways by surface drainage and vegetation en_US
dc.type Conference-Abstract en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Department of Civil Engineering en_US
dc.identifier.year 2015 en_US
dc.identifier.conference International Conference on Geotechnical Engineering - (ICGE - 2015) en_US Colombo en_US
dc.identifier.pgnos pp. 519 - 522 en_US

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