Volume 2, Issue 4 (December 2004)
IJCE 2004, 2(4): 223-231 |
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SALEH ZADEH H., Ghazanfari e.. PARAMETRIC STUDY OF KISH CARBONATE SAND UNDER TRIAXIAL SHEARING. IJCE 2004; 2 (4) :223-231
URL: http://ijce.iust.ac.ir/article-1-32-en.html
URL: http://ijce.iust.ac.ir/article-1-32-en.html
Abstract: (15717 Views)
To study the behavior of carbonate sands parametrically, some monotonic triaxial testswere carried out on Kish carbonate sand. The sample was provided from Kish Island beach. Inorder to examine the effect of density and confining pressure, samples in loose and dense stateswere tested under different confining pressures. For studying the effect of drainage andconsolidation, different stress paths were followed. Also to study the effect of particle crushing indrained tests all samples were graded before and after testing. Comparison between loose anddense samples in both drained and undrained tests showed that with increasing confiningpressure, the reduction in shear resistance in loose samples is less than dense samples and theincrement rate of particle crushing in loose samples is more than dense samples. In the range oflow confining pressures both loose and dense samples showed dilation response. With increasingconfining pressure, the loose samples tended to exhibit contraction and the rate of dilation indense samples reduced. Because recovering undisturbed sample of carbonate sediments is veryhard or even impossible so the effect of soil disturbance is not studied in this research.
Keywords: Confining pressure, Contraction, Deviator stress, Dilation, Interlocking, Particle crushing, Stress path
Type of Study: Research Paper |
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