Effect of Particle Size, Moisture Content and Density on the Hyperbolic Model Parameters for Non-cohesive Soil
Publish Year: 1401
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJE-35-9_004
تاریخ نمایه سازی: 10 اردیبهشت 1401
Abstract:
The hyperbolic non-linear elastic constitutive model for idealization of non-cohesive soil has been commonly used by researchers in numerical modeling. The hyperbolic model includes parameters (HMP) such as modulus number ‘K’, exponent ‘n’, angle of internal friction ‘φ’ and failure ratio ‘Rf’, which are evaluated using laboratory shear test. The parameters ‘K’, ‘n’ and ‘Rf’ are evaluated from transformed stress-strain curve whereas ‘φ’ is directly evaluated from normal and shear stress. When the samples are in large numbers, the process becomes very tedious and there will be no correlation for evaluation of such parameters. These parameters are highly dependent on particle size, moisture content and density. In this paper, box shear test has been performed on coarse, medium and fine sand as well as on fine gravels with varying densities. The tests have been conducted in dry and moist conditions. Based on the experiments performed, the HMP have been evaluated. The correlations have been established for every parameter based on particle size, moisture content and density. These correlations will be useful in direct evaluation of model parameters.
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Authors
Gaurav Dhadse
Research Scholar, Department of Civil Engineering, National Institute of Technology Raipur, C.G. India.
Gangadhar Ramtekkar
Professor, Civil Engineering Department, National Institute of Technology Raipur
Govardhan Bhatt
Assistant Professor, Civil Engineering Department, National Institute of Technology Raipur