The Evolution of Pore Water Pressure in a Saturated Soil Layer between Two Draining Zones by Analytical and Numerical Methods

• 作者: Abib Tall Cheikh Mbow Daouda Sangaré Mapathé Ndiaye Papa Sanou Faye
• 来源期刊: 土木工程期刊(英文)
• 学科: 数学
• 关键词: PORE Water Pressure Primary CONSOLIDATION Saturated Soil SEPARATED VARIABLES Finite Element
• 年，卷（期）: 2015,（4）
• 页码范围: 390-398
• 页数: 9页
• 分类号: O1

摘要

The building of the infrastructure on the compressible and saturated soils presents sometimes major difficulties. The infrastructure undergoes strong settlement that can be due to several phenomena of consolidation of the soils. The latter results from the dissipation of the excess pore pressure and deformation of the solid skeleton. Terzaghi theory led to the equation modeling the dissipation of excess pore pressure. The objective of this study is to establish solutions, by analytical and numerical method, of the equation of the pore water pressure. We considered a compressible saturated soil layer, between two drainage areas and subjected to a uniform load. Separation of variables is used to obtain an analytical solution and the finite element method for the numerical solution. The results obtained by the finite element method have validated those of analytical resolution.