Evaluation of seepage behavior considering tidal effect at offshore waste landfill with geosynthetic liner

Title
Evaluation of seepage behavior considering tidal effect at offshore waste landfill with geosynthetic liner
Author(s)
오명학; 박해용; 신현진
KIOST Author(s)
Oh, Myounghak(오명학)Park, Haeyong(박해용)
Publication Year
2018-09-18
Abstract
The seepage behavior according to the extended installation of geosynthetic liner upon seabed was evaluated. Transient external water level was applied based on the tidal variation. Results show that net discharge out of landfill is positive even the internal water level was same as mean seawater level. Net discharge kept minus value while the internal water level maintained two meter lower than seawater level. Strong seepage was shown at the joint part and the net discharge out of landfill was more than 1.5 m3/year/m2. The amount of discharge was significantly decreased even one meter of extension on seabed. It is recommended to extend the installation of geomembrane liner on the clayey seabed in order to prevent seepage from the joint part between two different cutoff layers.e even the internal water level was same as mean seawater level. Net discharge kept minus value while the internal water level maintained two meter lower than seawater level. Strong seepage was shown at the joint part and the net discharge out of landfill was more than 1.5 m3/year/m2. The amount of discharge was significantly decreased even one meter of extension on seabed. It is recommended to extend the installation of geomembrane liner on the clayey seabed in order to prevent seepage from the joint part between two different cutoff layers.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/23123
Bibliographic Citation
11th International Conference on Geosynthetics, pp.1 - 4, 2018
Publisher
International Geosynthetics Society
Type
Conference
Language
English
Publisher
International Geosynthetics Society
Related Researcher
Research Interests

Geotechnical,Offshore structure,지반,해양구조물

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