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Studying the behavior of Dhahran dune sand using the 3rd invariant stress dependent combined hardening cap model

Al-Buraim, Isa Mahmoud (1990) Studying the behavior of Dhahran dune sand using the 3rd invariant stress dependent combined hardening cap model. Masters thesis, King Fahd University of Petroleum and Minerals.

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English Abstract

A three stress-invariant dependent combined hardening cap model is considered in this work to study the behavior of Dhahran dune sand. The model differs from the original cap model, primarily, in its capability to simulate the response of soil when subjected to cyclic loading. In order to assess the applicability of this model, the local sand is tested using a modified triaxial device. Using this device, it is possible to conduct ycclic triaxial tests at a constant confining pressure. Different types of triaxial tests are conducted by using this device; namely; conventional triaxial compression test, triaxial compression test (J₁ = constant) triaxial extension test (J₁ = constant) and cyclic triaxial test. The results of those tests are used to determine the model parameter. The model is shown to realistically predict the soil responses under cyclic triaxial loading. The model is implemented into a two-dimensional finite element code to study the behavior of a rigid model footing resting on sand. Results indicate that the combined hardening cap model predictions agree well with the experimental observations.



Item Type:Thesis (Masters)
Date:May 1990
Date Type:Completion
Subjects:Civil Engineering
Divisions:College Of Engineering Sciences > Civil Engineering Dept
Creators:Al-Buraim, Isa Mahmoud
Committee Advisor:Abduljauwad, Sahel N.
Committee Members:Al-Ghamedi, Hamdan Naser and Saffar, Mahmoud M.
ID Code:9815
Deposited By:KFUPM ePrints Admin
Deposited On:22 Jun 2008 16:49
Last Modified:25 Apr 2011 09:30

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