Model study of load-settlement characteristics of pile, raft and piled-raft system resting on uniform fine sand and layered soil

  Ad Kiran Limjibhai,  P. J. Mehta

Now a days pile-raft foundations are being widely used for high rise buildings and other major structures in India. It carries both the advantages of rigid pile groups and flexible unpiled raft. Very little research work related to layered soil is available using pile-raft system. Present research work aims to study load-settlement characteristics response of pile-raft system embedded in uniform fine sand and layered soil using physical model approach. In this study, piled raft foundations which are subjected to static vertical compression load in uniform fine sand and also in the layered soil has been taken into account. The load settlement curve for each tests have been plotted to calculate ultimate bearing capacity. The behaviour of piled raft system was compared with responses of flexible unpiled raft, single pile, rigid pile groups. The results show that the effectiveness of the L/D ratio and number of piles used with and without raft in the uniform sand and layered soil. Significant increase in load bearing capacity is achieved when we increase the length of pile and also when we provide piled raft in place of only pile foundation.

Keywords- layered soil, rigid pile group, unpiled raft, piled raft

Unique Identification Number - IJEDR1802037
Page Number(s) - 213-215
Pubished in - Volume 6 | Issue 2 | April 2018
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Ad Kiran Limjibhai,  P. J. Mehta,   "Model study of load-settlement characteristics of pile, raft and piled-raft system resting on uniform fine sand and layered soil", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.6, Issue 2, pp.213-215, April 2018, Available at :http://www.ijedr.org/papers/IJEDR1802037.pdf