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Title: Field instrumentation for performance assessment of Geobarrier System
Authors: Rahardjo, Harianto
Qian, Zhai
Satyanaga, Alfrendo
Leong, Eng Choon
Wang, Chien Looi
Wong, Johnny Liang Heng
Keywords: Field Instrumentation
Engineering::Civil engineering
Geobarrier System
Issue Date: 2016
Source: Rahardjo, H., Qian, Z., Satyanaga, A., Leong, E. C., Wang, C. L., & Wong, J. L. H. (2016). Field instrumentation for performance assessment of Geobarrier System. E3S Web of Conferences, 9, 15006-. doi:10.1051/e3sconf/20160915006
Series/Report no.: E3S Web of Conferences
Abstract: The saturated hydraulic conductivity of a coarse-grained material is normally higher than that of a fine-grained material. However, the unsaturated hydraulic conductivity of the coarse-grained material decreases much faster than that of the fine-grained material with increasing matric suction and consequently the coarse-grained material can be less permeable than the fine-grained material in unsaturated condition. A capillary barrier system with a fine-grained layer over a coarse-grained layer will act as a hydraulic barrier to minimize rainwater infiltration into the original soil. Geobarrier system (GBS) which can function as both a cover system (i.e. prevention of rainwater infiltration) and a retaining structure was designed and will be constructed at Orchard Boulevard in Singapore. Numerical simulations were carried out to determine the optimallocations of instruments that can be used to assess the performance of GBS during dry and wet periods. The monitoring results from tensiometers, earth pressure cells and weather station would be used to validate the results from the numerical analyses
DOI: 10.1051/e3sconf/20160915006
Rights: © 2016 The Author(s) (published by EDP Sciences). This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles

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