Research Article
Analysis of Cantilever Retaining wall using Matrix Displacement method and ANSYS
@INPROCEEDINGS{10.4108/eai.7-12-2021.2314613, author={Shanmuga priya R K}, title={Analysis of Cantilever Retaining wall using Matrix Displacement method and ANSYS}, proceedings={Proceedings of the First International Conference on Combinatorial and Optimization, ICCAP 2021, December 7-8 2021, Chennai, India}, publisher={EAI}, proceedings_a={ICCAP}, year={2021}, month={12}, keywords={matrix displacement method finite element method plane strain problem four noded isoparametric rectangular elements}, doi={10.4108/eai.7-12-2021.2314613} }- Shanmuga priya R K
Year: 2021
Analysis of Cantilever Retaining wall using Matrix Displacement method and ANSYS
ICCAP
EAI
DOI: 10.4108/eai.7-12-2021.2314613
Abstract
Retaining walls are used for maintaining ground surface at different elevations on either side of it. The stability of earth retaining structures has become a serious problem due to scour, erosion etc., and the main reason for its instability is the improper analysis of such structures. Hence it is necessary to analyze the retaining walls in a proper manner by considering the various factors such as soil types, boundary conditions, size and type of retaining walls. Matrix displacement method and Finite Element method by ANSYS Software are used for the analysis of Cantilever retaining wall with uniform stem thickness and subjected to horizontal backfill. In the Matrix Displacement method, the cantilever retaining wall has been discretized into six numbers of four-noded isoparametric rectangular elements based on the aspect ratio and are analyzed as a plane strain problem. The element stiffness matrices for each element have been derived and are assembled to obtain the structural stiffness matrix of size 20x20 after applying the boundary conditions. From the structural stiffness matrix and the nodal loads, the nodal displacement, stresses and strains induced in each element are determined. In the finite element method, the cantilever retaining wall is modeled as a 2D plane strain model is meshed with quadrangle type of element at optimum edge size of 0.35m is analyzed. , ANSYS and the Static analysis are compared.