Options
Experimental Evaluation of Failure Zone in Sand Beneath the Ring Footing and Cutting Edge of Open Caisson Using Image Analysis
Date Issued
01-01-2021
Author(s)
Chavda, Jitesh T.
Indian Institute of Technology, Madras
Abstract
The analytical evaluation of the bearing capacity of the ring footing and cutting edge of the open caisson requires a definition of the size of failure zone in the soil, whereas the failure zone in soil depends on the type of soil and the configuration of the ring footing and cutting edge of the open caisson. In the study, the 1 g model tests are carried out to evaluate the failure zone in the sand beneath the ring footing and cutting edge of the circular open caisson. The radii ratio of the ring footing and cutting edge of the open caisson models are varied as ri/ro = 0.615, 0.737, and 0.783, and the tapered angle of cutting edge models is varied as β = 30° and 45°. The radius ratio is the ratio of internal radius to the external radius of the ring footing and cutting edge of the open caisson. The ring footing and caisson models are fabricated using Teflon tubes, and Indian standard sand is used as soil medium. The image-based deformation measurement technique is used to evaluate the failure zone in sand. The image analysis results are validated from the rigid displacement test.
Volume
133 LNCE