TY - JOUR
T1 - Field instrumentation for performance assessment of Geobarrier System
AU - Rahardjo, Harianto
AU - Qian, Zhai
AU - Satyanaga, Alfrendo
AU - Leong, Eng Choon
AU - Wang, Chien Looi
AU - Wong, Johnny Liang Heng
N1 - Publisher Copyright:
© 2016 The Authors.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2016/9/12
Y1 - 2016/9/12
N2 - 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.
AB - 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.
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U2 - 10.1051/e3sconf/20160915006
DO - 10.1051/e3sconf/20160915006
M3 - Conference article
AN - SCOPUS:85013634813
VL - 9
JO - E3S Web of Conferences
JF - E3S Web of Conferences
SN - 2555-0403
M1 - 15006
T2 - 3rd European Conference on Unsaturated Soils, E-UNSAT 2016
Y2 - 12 September 2016 through 14 September 2016
ER -
