mirage

Performance of an instrumented slope covered by a capillary barrier system.

DSpace/Manakin Repository

 

Search DR-NTU


Advanced Search Subject Search

Browse

My Account

Performance of an instrumented slope covered by a capillary barrier system.

Show simple item record

dc.contributor.author Rahardjo, Harianto.
dc.contributor.author Santoso, Vera Amalia.
dc.contributor.author Leong, Eng Choon.
dc.contributor.author Ng, Yew Song.
dc.contributor.author Hua, Chai Juay.
dc.date.accessioned 2011-12-07T06:58:30Z
dc.date.available 2011-12-07T06:58:30Z
dc.date.copyright 2011
dc.date.issued 2011-12-07
dc.identifier.citation Rahardjo, H., Santoso, V. A., Leong, E. C., Ng, Y. S., & Hua, C. J. (2011). Performance of an instrumented slope covered by a capillary barrier system. Journal of geotechnical and geoenvironmental engineering (accepted for publication – July 2011)
dc.identifier.uri http://hdl.handle.net/10220/7350
dc.description.abstract A capillary barrier as a cover system is a two‐layer system of distinct hydraulic properties to prevent water infiltration into the underlying soil by utilizing unsaturated soil mechanics principles. This paper illustrates the application of the capillary barrier system on a slope which experienced shallow slip failures to prevent future rainfall‐induced slope failures. In this study, the capillary barrier system was designed as a cover system for residual soil slopes with a steep slope angle under heavy rainfall conditions of the tropics. The capillary barrier system was constructed using fine sand as the fine‐grained layer and granite chips as the coarse‐grained layer. Both layers were contained in cellular confinement system. The slope was instrumented with tensiometers and piezometers. The tensiometers were installed at different depths from about 0.5 m to 2.0 m below the slope surface. An adjacent original slope without the capillary barrier system was also instrumented using tensiometers in order to investigate the performance and effectiveness of the capillary barrier system in reducing rainwater infiltration and maintaining negative pore‐water pressure in the slope. The detailed installation of matric suction measurement device is discussed comprehensively in this paper. The measurement results showed that the capillary barrier system was effective in maintaining the negative pore‐water pressures during rainfalls, particularly on the crest of the slope.
dc.language.iso en
dc.relation.ispartofseries Journal of geotechnical and geoenvironmental engineering
dc.rights © 2011 ASCE
dc.subject DRNTU::Engineering::Civil engineering::Geotechnical.
dc.title Performance of an instrumented slope covered by a capillary barrier system.
dc.type Journal Article
dc.contributor.school School of Civil and Environmental Engineering
dc.identifier.doi http://dx.doi.org/10.1061/(ASCE)GT.1943-5606.0000600
dc.description.version Accepted version

Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record