Performance of Multi-Layer and Multi-Layer Stepped Jutecell Reinforced Sand Bed Under Circular Footing
摘要
Geocell is widely recognised as one of the most advanced and efficient forms of soil reinforcement. It is a 3D honeycombing cell-structure made of synthetic strips of different types such as sheets and/or textiles. Recently, interests are growing on natural reinforcement, such as jute, in view of sustainable and environmental feasibility. Following the trend the concept of jutecell is developed comprising the jute geotextiles (JGT). The jutecells are fabricated by stitching the JGT strips into a mattress form. In this study, a series of numerical simulations are conducted to simulate the jutecell reinforced sand beds using PLAXIS3D. In PLAXIS, the sand and sand-jutecell interfaces are modelled according to the Mohr–Coulomb criterion; while the jutecells are simulated using the built-in ‘geogrid’ element. The results demonstrated that the jutecell has improved the foundation performance in terms of increased bearing capacity and reduced settlement. Further, the performance of multi-layer and multi-layer stepped configurations of jutecell-mattresses are also checked and found not to be suitable always compared to a thick single-layer mattress alone. The study indicated potentiality of ‘jutecell’ towards sustainable geotechnics scope of further research on it.