Coupling Tank Model and Flow Model for An Accurate Representation of Slope Seepage Flow Analysis
| Main Authors: | Ramli, Muhammad, Ohnishi, Yuzo |
|---|---|
| Format: | Proceeding |
| Bahasa: | eng |
| Terbitan: |
, 2011
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| Subjects: | |
| Online Access: |
http://repository.unhas.ac.id/handle/123456789/20 |
Daftar Isi:
- Slope failure frequently occurs in the rainy season indicating pore water pressure along the potential sliding planes during or after rainfall plays important roles. The pore water pressure changes correspond to water table fluctuation that is mainly associated with the rainfall. However, numerical modeling for seepage flow analysis is commonly performed by setting boundary conditions at upper and lower gradient as a fixed head. This simple assumption may lead to inaccurate estimation results. Therefore, evaluation of the pore water pressure distribution and its time evolution needs a new technique. A coupling of tank model and groundwater flow model was proposed in this paper. Using this technique, the effect of rainwater infiltration to the slope seepage flow can be represented more realistic in adjusting boundary conditions as time-dependent hydraulic head. The proposed method was implemented into the real field problem of slope in Japan