The research on damages of structures that are supported by deep foundations has been quite intensive in the past decade. Kinematic interaction in soil-pile interaction is evaluated based on the p-y curve approach. Existing p-y curves have considered the effects of relative density on soil-pile interaction in sandy soil. The roughness influence of the surface wall pile on p-y curves has not bee...

Tailored gradation in elastic–plastic properties is known to offer avenues for suppressing surface damage during normal indentation and sliding contact. In tribological applications, sliding contact analysis provides a more representative mechanism for fundamental understanding and design as it offers a tool to test materials under conditions of controlled abrasive wear. However, no such study ...

Results from bi-directional tests are not the same as those obtained from top loading tests and although bi-directional test data often contain more geotechnical information, it is the characteristic behaviour of the head of the pile which is of interest. In order to provide an equivalent top loading characteristic, methods have been developed to enable the addition of the individual components...

in present research, 17 centrifuge tests have been conducted to study the effect of various parameters such as the number of piles, the distance between piles, gradation and thickness of the granular layer on the load-settlement behavior of a pile raft system. the results showed the importance of granular layer to reduce the settlement of non-connected pile raft system when the roles of piles a...

A bi-directional static load test (BDSLT) is one of the most effective methods for accurately estimating pile bearing capacity, in which divided into two portions by activating single-loading device welded along shaft. BDSLT, thus, eliminates safety concerns and space limitations imposed reaction system, as compared to conventional tests (kentledge). Based on this study’s project requirements, ...