Load Settlement Behaviour of Raft and Piled Raft on Granular Soil
Load Settlement Behaviour of Raft and Piled Raft on Granular Soil
In recent decades, rising costs and scarcity of land have led to the construction of high-rise civil engineering facilities to meet the needs of a growing population. High-rise buildings are founded on deep foundations. The foundation system contributes significantly to the cost of the facility. Recently, the use of a Piled-Raft (PR) foundation has been advocated as a cost-effective solution to bear the loads from the superstructure of high-rise buildings. In this study, we investigate the load settlement response of model Raft and Piled-Raft foundation systems. Experiments were conducted using the scaled model of the Raft and Piled-Raft Foundation system. The influence of the relative density of soils, raft size, and foundation type (raft and piled-raft systems) on the load-settlement behaviour was investigated. With an increase in relative density from 30% to 70%, the load-carrying increased by 90%, 73 %, and 34% for the raft sizes of 200 mm, 300 mm, and 450 mm, respectively. For the piled-raft system, the increase in load-carrying capacity was found to be 70%. The results from the present study show that a piled-raft system is a cost-effective yet efficient and safe foundation system that could be used to sustain the heavy structural loads from high-rise buildings.
Mohd Shadab Ansari; Majid Hussain
5th European Conference on Physical Modelling in Geotechnics (ECPMG2024)
Onshore and offshore foundation systems
https://doi.org/10.53243/ECPMG2024-6
Contact Information
- Secretary General - Dr A M McNamara
- Email: [email protected]
- Phone: +44 20 7040 8154
- City, University of London
- Northampton Square
- London EC1V 0HB. United Kingdom