The influence of the permeability model in unconfined seepage problems

• Type: Article in International Conference Proceedings Book
• Date: 2007

Authors

Marques, JMMC (Author) FEUP; Marado, JMP (Author) Other

Conference proceedings International

Title: Applications of Computational Mechanics in Geotechnical Engineering

Pages: 143-148

5th International Workshop on Applications of Computational Mechanics in Geotechnical Engineering

Guimarães, 1 a 4 de Abril de 2007

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 1 Citation

Scientific classification

FOS: Engineering and technology > Environmental engineering

Other information

Authenticus ID: P-004-CGM

Abstract (EN): The paper reviews two distinct techniques that can be used for the finite element solution of unconfined seepage problems with a phreatic surface. In the first technique the flow is considered to be circumscribed to the saturated region of the domain, with recourse to either a variable or a constant mesh approach. The second technique considers the phreatic surface as the boundary between the fully saturated and the unsaturated regions of the domain. This involves the adoption of a function for each soil type that accurately conveys the dependence of permeability on pore pressure, making this approach much smoother in numerical terms and physically more realistic. The numerical examples presented will illustrate the pros and cons of the various techniques.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6