caa a22 4500 469043121 CHVBK 20180323132816.0 cr unu---uuuuu 170328e19920601xx s 000 0 eng 10.1007/BF00881149 doi (NATIONALLICENCE)springer-10.1007/BF00881149 Drainage of supported excavations [Elektronische Daten] [M. Kavvadas, A. Giolas, G. Papacharalambous] Summary: The paper provides the approximate closed-form expressions for the estimation of the amount of ground water infiltration, the seepage exit gradient and the hydraulic pressure distribution on the cutoff elements in the case of sheeted excavations below the water table. The expressions are obtained by a multiple regression-type fitting of the results of an extensive parametric finite-element analysis for the two-dimensional steady-state flow in the soil around a sheeted excavation. In addition to the problem geometry, the effects of an impermeable base and a thin low permeability layer penetrated by the sheeting are also studied. The predictions of the approximate expressions deviate from the corresponding finite-element results by less than 15%, for a wide range of geometries and soil characteristics. It is shown how shape factors might be used to adapt the semi-empirical formulae for the case of excavations with limited length (circular and rectangular). Chapman & Hall, 1992 Drainage nationallicence excavation nationallicence exit gradient nationallicence sheet-piling nationallicence finite elements nationallicence Kavvadas M. Lecturer in Geotechnical Engineering, Faculty of Civil Engineering, National Technical University of Athens, Greece aut Giolas A. Athens, Greece aut Papacharalambous G. Athens, Greece aut Geotechnical & Geological Engineering Kluwer Academic Publishers 10/2(1992-06-01), 141-157 0960-3182 10:2<141 1992 10 10706 https://doi.org/10.1007/BF00881149 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00881149 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kavvadas M. Lecturer in Geotechnical Engineering, Faculty of Civil Engineering, National Technical University of Athens, Greece aut NATIONALLICENCE 700 1- Giolas A. Athens, Greece aut NATIONALLICENCE 700 1- Papacharalambous G. Athens, Greece aut NATIONALLICENCE 773 0- Geotechnical & Geological Engineering Kluwer Academic Publishers 10/2(1992-06-01), 141-157 0960-3182 10:2<141 1992 10 10706 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer