Type-curves to assess seepage under sheet-piles for dewatering geotechnical works in limited 2D geometries
Type-curves to assess seepage under sheet-piles for dewatering geotechnical works in limited 2D geometries
Graphical methods based on flownets or numerical modelling are two procedures traditionally used to estimate groundwater flow under different geotechnical structures (dams, sheet-piles, diaphragm walls, among others). In this work, both methods are combined with dimensionless analysis to set out and verify the dimensionless groups that govern the groundwater discharge. The results are a set of type-curves charts easy-to-use to assess seepage per metre transversal length of sheet-pile. The chart is applied to flow under sheet-piles for maritime or fluvial shored scenarios, where permanent dewatering is required in the enclosure. Geometrical parameters like sheet-pile height, depth of sheet-pile embedment, impervious bedrock depth, excavation width, horizontal stretch in the back face and water levels and physical parameters as hydraulic conductivity are input data in the chart, all of them included in the monomials. The physical scenario assumes isotropic medium and cross-section symmetry.
S. Navarro Carrasco; J. A. Jimenez-Valera; Ivan Alhama Manteca
18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)
E - Environment, water and energy
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