Role of Numerical Modelling in Understanding Soft Soil Behaviour Under Construction Load
DOI:
https://doi.org/10.15282/construction.v5i2.12576Keywords:
Finite Element, Modified Cam Clay, Elastic-viscoplastic, Soft soilAbstract
This study reviewed the application of numerical modelling in soft soil subjected to different construction loads. Various models to simulate clayey soils were discussed which included the Modified Cam Clay (MCC) model and Elastic-viscoplastic (EVP) model. The MCC model was useful for predicting soil settlement and pore water pressure through a 2D FEA model, but the EVP model performed more accurately in predicting soil settlements, lateral displacements and excess pore water pressures. A 3D numerical model using HSM for pile raft foundations accurately predicted the displacement under working loads based on the non-linear soil elasticity and plasticity. Case studies on tunnels constructed on soft soil were presented. Numerical simulations had been found reliable in simulating the settlements and slope stability. The findings emphasized the importance of numerical modelling to enhance design optimization in geotechnical aspects.
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