Conference Papers

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    Numerical Study on Interference of Surface Strip Footings Resting on Stiff Clay
    (Springer Science and Business Media Deutschland GmbH, 2020) Hridya, P.; Anaswara, S.; Shivashankar, R.
    In the present study, the interference effects of two closely spaced strip footings on the surface of stiff clay were investigated. The effect of interference on characteristic behaviour like bearing pressure, settlement and tilt is observed using two-dimensional plane strain analysis. Finite element analysis software PLAXIS 2D is used for this. The behaviour of individual footing on stiff clay is first established. Parametric study is done by varying the width of footing and the spacing between the footings. The results are presented in terms of efficiency factors, which are defined as the ratio of settlement or bearing pressure of interfering footing to that of the isolated footing. The effect of interference is particularly noticeable in terms of settlement. Maximum settlement and tilt occur at a spacing 1.5B irrespective of the footing width. Effect of shear keys placed beneath the footings at different locations beneath the footing and the interference of such footings were also studied. It is found that the presence of shear keys has a significant effect on the interference between the footings, compared to without the shear keys. © 2020, Springer Nature Singapore Pte Ltd.
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    Effect of Surcharge on Analysis of Anchored Sheet Piles Embedded in Cohesionless Soil
    (Springer Science and Business Media Deutschland GmbH, 2025) Dinesh, G.; Nayak, S.; Kumar Reddy, S.K.
    An anchored sheet pile wall is a flexible retaining structure stabilized by anchors placed at a specific depth to resist external forces. The design of these walls is influenced by two key factors: the embedment depth into the foundation soil and the maximum bending moment experienced by the wall. This study presents design charts for anchored sheet piles in cohesionless soil subjected to surcharge loads. Both the conventional free earth support method and finite element analysis using PLAXIS 2D were employed. Multiple scenarios were simulated in PLAXIS 2D using the Mohr–Coulomb model, with an internal friction angle of 34° for the soil and a combination of fixed base boundary conditions. The study also examined different water table positions at the surface, middle, dredge level, and deep below the surface and generated design charts for embedment depth (D) and maximum bending moment (Mmax). Results revealed that the conventional free earth support method tends to overestimate the maximum bending moment. In contrast, the finite element analysis, with detailed mesh refinement and boundary conditions, provided a better assessment of soil–structure interaction, yielding more reliable outcomes. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.