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Study on the GCL’s Response to Hydraulic Uplift

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Open access
Authors
Budihardjo, Mochamad
Chegenizadeh, A
Nikraz, Hamid
Date
2012
Type
Conference Paper

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Budihardjo, Mochamad and Chegenizadeh, A and Nikraz, Hamid. 2012. Study on the GCL’s Response to Hydraulic Uplift, in A. Chang and T. Yingthawornsuk (ed), International Conference on Civil and Architectural applications (ICCAA'2012), Dec 18 2012, pp. 101-104. Phuket, Thailand: Planetary Scientific Research Center.
Source Title
Proceedings of the International Conference on Civil and Architectural applications (ICCAA'2012)
Source Conference
International Conference on Civil and Architectural applications (ICCAA'2012)
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This article is published under the Open Access publishing model and distributed under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0/ Please refer to the licence to obtain terms for any further reuse or distribution of this work.

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Abstract

Most of landfill sites in developed countries employ GCL as bottom liners to replace compacted clay liner. However, various water level and direction might be faced by GCL during its operation. These conditions can make the GLC to deform and decrease its hydraulic capability. In this experiment, the GCL was tested with two direction of water flow to see whether any deformation that causes the GCL to lose its hydraulic performance. The results showed that the hydraulic performance of the GCL was constant while facing a water flow coming from above even some area started to be slightly thinner than others. In contrast, the GCL started to uplift, curved and lost its hydraulic performance when thewater pressure coming from underneath. The bentonite particles also moved aside from higher hydraulic pressure zone into lower pressure area creating diverse thickness.