caa a22 4500 467930716 CHVBK 20180406152942.0 cr unu---uuuuu 170328e20060601xx s 000 0 eng 10.1007/s10706-005-1147-5 doi (NATIONALLICENCE)springer-10.1007/s10706-005-1147-5 Laboratory Investigations on Extremely High Suction Measurements for Fine-grained Soils [Elektronische Daten] [Vikas Thakur, S. Sreedeep, Devendra Singh] A Dewpoint PotentiaMeter (WP4) was used to measure suction of two fine-grained soils: a locally available silty soil and commercially available white clay, rapidly. Using these results, efforts were made to check the suitability and efficiency of various fitting functions, for defining the soil-water characteristic curve, SWCC, for high suction ranges (0-80MPa). In addition to this, a knowledge-based database SoilVision 3.34 was used to estimate the SWCC using Pedo-transfer functions, PTFs. The study brings out that the Fredlund et al. [1997, Proceedings of the 3rd Symposium on Unsaturated Soil, Rio de Janeiro, Brazil, pp. 13-23] PTF yields the best estimate of SWCC for fine-grained soils. The influence of the soil type and dry unit weight, on suction and the SWCC fitting parameters, have also been studied. Springer, 2006 Dewpoint PotentiaMeter nationallicence fine-grained soils nationallicence pedo-transfer function nationallicence soil suction nationallicence soil-water characteristic curve nationallicence ac : bubbling pressure in kPa nationallicence AEV : air entry value nationallicence af, avg : soil parameters which are dependent on the AEV nationallicence hr : suction corresponding to wr nationallicence M : molarity of the KCl solution nationallicence mf : soil parameter which is a function of wr nationallicence mvg : fitting parameter nationallicence nc : pore size index nationallicence nf, nvg : parameters which depend on the rate of extraction of water from the soil beyond AEV nationallicence p : vapour pressure of air nationallicence po : saturation vapour pressure nationallicence PTF : pedo-transfer function nationallicence R : universal gas constant nationallicence Sr : degree of saturation nationallicence T : temperature of the sample in K nationallicence w : gravimetric water content nationallicence w(ψ) : gravimetric water content at any suction, ψ nationallicence wo : optimum water content nationallicence wr : residual water content nationallicence ws : gravimetric water content at saturation nationallicence χ : molecular mass of water nationallicence γd : dry unit weight nationallicence γdmax : maximum dry unit weight nationallicence ψ : total suction nationallicence ψm : matric suction nationallicence ψo : osmotic suction nationallicence Thakur Vikas Department of Civil Engineering, Indian Institute of Technology, 400076, Bombay, Powai, Mumbai, India aut Sreedeep S. Department of Civil Engineering, Indian Institute of Technology, 400076, Bombay, Powai, Mumbai, India aut Singh Devendra Department of Civil Engineering, Indian Institute of Technology, 400076, Bombay, Powai, Mumbai, India aut Geotechnical & Geological Engineering Kluwer Academic Publishers 24/3(2006-06-01), 565-578 0960-3182 24:3<565 2006 24 10706 https://doi.org/10.1007/s10706-005-1147-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10706-005-1147-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Thakur Vikas Department of Civil Engineering, Indian Institute of Technology, 400076, Bombay, Powai, Mumbai, India aut NATIONALLICENCE 700 1- Sreedeep S. Department of Civil Engineering, Indian Institute of Technology, 400076, Bombay, Powai, Mumbai, India aut NATIONALLICENCE 700 1- Singh Devendra Department of Civil Engineering, Indian Institute of Technology, 400076, Bombay, Powai, Mumbai, India aut NATIONALLICENCE 773 0- Geotechnical & Geological Engineering Kluwer Academic Publishers 24/3(2006-06-01), 565-578 0960-3182 24:3<565 2006 24 10706 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer