Vol. 4 No. 7 (2018) · Articles
Heena Malhotra
Research Scholar , Punjab Engineering College, Chandigarh, IN
Janmeet Singh
Research Scholar , Punjab Engineering College, Chandigarh, IN
Keywords: Hydraulic conductivity , standard deviation , permeameter
Hydraulic conductivity is one of the most important physical properties of soil which governs the quantitative evaluation of groundwater resources . It depends upon large number of variables such as particle size , porosity of the packing , shape of the individual particles , size distribution of particles in the packing , arrangement of particles in the bed with respect to each other , particle surface roughness and permeameter walls . In common practice the coefficient of permeability is usually obtained by constant head permeability test as it is easy to apply however it is not easy to obtain for undisturbed sand specimens from field . It is desirable to predict the hydraulic conductivity (permeability) value of same shape group particles of different sizes and mixed randomly for a knowledge of their statistical size distribution. However , a comprehensive study of the effects of non uniformity of sediments on permeability of the porous materials is not available . Sand samples are collected from bore holes of Jalandhar area and are having mean diameter 0.0425 cm , 0.05cm , 0.06 cm , 0.0425 cm , 0.03 cm ,0.05 cm . Each sand sample were used independently to prepare sediment mixture having standard deviation varying between ranges of 1 to 3. Tests namely sieve analysis test , specific gravity test and hydraulic test are conducted .The experiments have been conducted in laminar range . All the results have been corrected to a constant porosity of 40% using Kozeny's equation . On the basis of experimental results a positive correlation between permeability (K) , standard deviation (σ) and mean diameter (d50) has been developed . The equation developed can be used for the estimation of permeability involving porous media with same shape group particles with reasonable accuracy.
NA
Heena Malhotra, Janmeet Singh, “EXPERIMENTAL INVESTIGATION OF NON UNIFORMITY OF SEDIMENTS ON HYDRAULIC CONDUCTIVITY,” International Journal of Technical Innovation in Modern Engineering & Science, vol. 4, no. 7, pp. 847-854, Jul 2018.
Copyright (c) 2018 Heena Malhotra, Janmeet Singh
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Submission of a manuscript implies that the work described has not been published before, that it is not under consideration for publication elsewhere, and that if accepted, the author retains copyright with no restrictions. Authors may post the final peer-reviewed manuscript (postprint) to any repository or website.
