Abstract
In the present study two-dimensional finite element analysis has been carried out on cantilever sheet pile wall using ABAQUS/Standard software to study the effect of different friction angles and its related parameters such as dilation angle, the interfacial friction coefficient between soil-wall on earth pressure distribution, and wall deformation. From the results obtained, it is found that there is a significant decrease in wall deformation with an increase in the angle of internal friction and its related parameters. The earth pressure results obtained from the finite element analysis shared a unique relationship with that of a conventional method. Both the results showed similar linear behavior up to a certain percentage of wall height and then changed drastically in lower portions of the wall. This trend of behavior is seen in both active as well as in passive earth pressure distribution for all the frictional angle. Hence, after comparing the differences that exist in the results for both methods, from the analysis a new relationship between the earth pressure coefficients from a conventional method and the finite element method has been developed for both active and passive earth pressure on either side of the sheet pile wall. This relationship so derived can be used to compute more reasonable earth pressure distributions for a sheet pile wall without carrying out a numerical analysis with a minimal time of computation. And also the earth pressure coefficient calculated from this governing equation can serve as a quick reference for any decision regarding the design of the sheet pile wall. Doi: 10.28991/cej-2021-03091638 Full Text: PDF
Highlights
Sheet pile wall has been used for both temporary as well as permanent structures in the earth and waterfront retaining structure
Another drawback of the conventional design method is the use of constant earth pressure coefficient throughout the wall height for the calculation of earth pressure [5, 6], which may result in the erroneous design of sheet pile wall using conventional design method
From the present parametric study of sheet pile wall, it is observed that frictional angle, dilation angle, and interfacial friction coefficient between wall and soil has a significant influence on wall behavior
Summary
Sheet pile wall has been used for both temporary as well as permanent structures in the earth and waterfront retaining structure. One of the major assumptions made in the conventional design method is the use of triangular earth pressure distribution but in real practice, the earth pressure distribution is not triangular but much more complicated. Another drawback of the conventional design method is the use of constant earth pressure coefficient throughout the wall height for the calculation of earth pressure [5, 6], which may result in the erroneous design of sheet pile wall using conventional design method
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