A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Behaviour of Disconnected Piled Raft Foundation on Sandy Soil: An Experimental Study
Disconnected piled raft foundation (DPRF) is an efficient and economical foundation option in todays’ era where the piles are separated from the raft with the help of intermediate cushion layer. The cushion layer helps to distribute the vertical pressure uniformly on the raft bottom and acts as soil reinforcements. The load-settlement characteristics and load sharing mechanism of this type of foundation are complex in nature. Therefore, the major objective of this paper is to investigate the load-settlement and load-sharing behaviour of the disconnected piled raft foundation and to obtain the optimum thickness of cushion layer. In order to study the behaviour of disconnected piled raft foundation, a series of laboratory model tests are conducted on sandy soil with different thicknesses of the cushion layer. The influence of number of piles, pile spacing and the thickness of cushion layer on the load-settlement and load-sharing mechanism of the disconnected piled raft are illustrated in this paper. The test results show that with the increase of cushion layer thickness up to a certain value, the load carrying capacity of the disconnected piled raft increases and the disconnected piled raft foundation considerably reduces the settlement and improves the performance of the foundation.
Behaviour of Disconnected Piled Raft Foundation on Sandy Soil: An Experimental Study
Disconnected piled raft foundation (DPRF) is an efficient and economical foundation option in todays’ era where the piles are separated from the raft with the help of intermediate cushion layer. The cushion layer helps to distribute the vertical pressure uniformly on the raft bottom and acts as soil reinforcements. The load-settlement characteristics and load sharing mechanism of this type of foundation are complex in nature. Therefore, the major objective of this paper is to investigate the load-settlement and load-sharing behaviour of the disconnected piled raft foundation and to obtain the optimum thickness of cushion layer. In order to study the behaviour of disconnected piled raft foundation, a series of laboratory model tests are conducted on sandy soil with different thicknesses of the cushion layer. The influence of number of piles, pile spacing and the thickness of cushion layer on the load-settlement and load-sharing mechanism of the disconnected piled raft are illustrated in this paper. The test results show that with the increase of cushion layer thickness up to a certain value, the load carrying capacity of the disconnected piled raft increases and the disconnected piled raft foundation considerably reduces the settlement and improves the performance of the foundation.
Behaviour of Disconnected Piled Raft Foundation on Sandy Soil: An Experimental Study
Lecture Notes in Civil Engineering
Sitharam, T.G. (editor) / Pallepati, Raghuveer Rao (editor) / Kolathayar, Sreevalsa (editor) / Chowdhury, Mainak (author) / Deb, Plaban (author) / Pal, Sujit Kumar (author)
2021-03-27
13 pages
Article/Chapter (Book)
Electronic Resource
English
Settlement-Reducing Effects of Disconnected Piled Raft Foundation System
| British Library Conference Proceedings | 2007
Seismic Behaviour of RC Structure Under Disconnected Piled Raft System
| Springer Verlag | 2021
Soil-Piled Raft Foundation Interaction
| British Library Conference Proceedings | 1991