Behavior of Cantilever and Strut Sheet Pile Embedded in Soil using Finite Element Method

Abstract

This research work is mainly focused on analysis of geotechnical aspects/parametres of Sheet Pile embedded in any soil condition using Finite Element Analysis. For this research work the finite element geotechnical analysis package Optum G2 has been brought into use. The Soil and Sheet Pile both have been designed/modelled as per Mohr-Coulomb Criterion. Here strutted(braced) sheet pile system using a strut modelled as fixed end anchor C300 (with yield force = 300 kN/m). The strutted sheet pile has been assessed for in presence of pseudo-static seismic loading Thereafter resultant parametres similar or different are illustrated, via modelling of 2D elements on Optum G2 . Using limit analysis with embedded depth of sheet pile being 0.4 and 0.5 times of total height of sheet pile i.e. 3.6m and 4.5m, the load multiplier value came up as 5.19 for both values of embedded depth of sheet pile. The Cantilever Sheet Pile is under induced strip loading. Thereafter resultant parametres similar or different are illustrated for it, via modelling of 2D elements on Optum G2. On this sheet pile Multiplier Elastoplastic analysis has been performed, under four different values of prompted strip load (q) of 35, 49, 56 and 70 kN/m² . A 2Y-X graph has been made exhibiting variation of displacement ϴ and total displacement |u| of sheet pile with increase in height of structs from bottom of finite soil section. Variation of ϴ with height seems to be S-shaped curve while variation of |u| with height a rough J-shaped curve.