Influence of Surrounding Soil Conditions and Joint Sealing on Seepage Resistance of a Sheet Pile Wall, Three Dimensional Numerical Analyses

World Multidisciplinary Earth Sciences Symposium 2017

Sawicki, Eugeniusz^1 ; Wyjadlowski, Marek^1

Wroclaw University of Science and Technology, 27 Wybrzee Wyspiaskiego st., Wroclaw

50-370, Poland^1

关键词: 3-D numerical simulation;    Analytical results;    Joint resistance;    Numerical calculation;    Sheet pile wall;    Surrounding soils;    Three-dimensional numerical analysis;    Velocity field;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/95/2/022011/pdf
DOI  :  10.1088/1755-1315/95/2/022011

来源: IOP

【 摘 要 】

The aim of this article is to present 3D numerical calculations results of the seepage resistance of sheet pile (SP) wall with sealed joints. In the present work the leakage through SP wall was determined for one joint of full length. In the analysed example, the SP wall passed through one kind of soil but some conditions (permeability of joint and of surrounding soil) changed depending on the adopted assumptions. To find the distribution of the total head in the calculation area Laplace equation was used. To determine the velocity field Darcy's law was adopted. In the first step, the discharge flowing through the single joint of SP wall based on 3D numerical simulations was determined. In the next step, the joint resistance was estimated and the discharge was found analytically. The results obtained using these two methods were compared. And the conclusions are as follows: it seems possible to estimate the "joint permeability" coefficient using numerical methods, in some conditions the analytical results are far away from numerical ones, due to the nonlinear pressure distribution along the joint, it is necessary to collect in-situ data to confirm the usefulness and reliability of obtained solutions and to proposed more complete methods of determination of SP wall seepage resistance.