By Benjamin Loret, Jacques M. Huyghe
The ebook addresses basic concerns confronted by means of experimentalists, modelers and engineers attracted to diverse actual, mechanical and delivery points of organic tissues and chemically lively geological fabrics, quite often clays and shales. the focal point is at the couplings among electro-chemical and mechanical features fascinated by swelling and chemical consolidation. Emphasis is laid at the effect of those phenomena on mechanical houses and on shipping homes. functions in geo-environmental and geotechnical applied sciences, together with nuclear and unsafe waste isolation, oil restoration, engineering geology, are addressed without delay or implied. keep an eye on of long-term results of surgical procedure and mechanical functionality of prostheses could benefit from the modeling of irreversibilities which are of extreme significance in geological fabrics. Conversely, figuring out the self-regulation mechanisms of organic tissues can be invaluable within the layout of effective engineering materials.
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Additional info for Chemo-Mechanical Couplings in Porous Media Geomechanics and Biomechanics
Q "' c; ::s ".... ·;;;; Cl) 20 --+- Marino I···•·· Gela 1: j 0 2 3 4 5 6 NaCl solution molarity Figure 6. Residual shear strength under cr' n = 200 kPa against NaCl solution molarity. KCl effects on the residual shear strength of the considered materials are slightly higher than Shear Strength of Clays and Clayey Soils: the Influence of Pore Fluid Composition 51 those exerted by NaCl, as shown by Figure 7 for the Bisaccia clay. Also the results relative to the Ponza bentonite show that the effects of K+ are slightly higher than those of Na+ (Di Maio, 1996b).
457- 468. , and Olson, R. E. (1971). Consolidation characteristics ofmontmorillonite. Geotechnique, vol. XXI, n. 4, pp. 341-352. Mitchell, J. , Greenberg, J. , and Witherspoon, P. A. (1973). Chemico-osmotic effects in fine-grained soils. J. Soil Mech. Fdn Div. Am. Soc. Civ. Engrs. 99, SM4, 307-322. Mitchell, J. K. (1991). Conduction phenomena: from theory to geotechnical practice. Geotechnique, vol. XLIV, n. 3, pp. 299-340. Mitchell, J. K. (1993). Fundamentals of soil behaviour. 2nd ed. John Wiley & Sons, Inc.
1999). Properties and behaviour of Hong Kong marine deposits with different clay contents. Canadian Geotechnical Journal, vol. 36, pp. 1085-1095. Shear Strength of Clays and Clayey Soils: the lnfluence of Pore Fluid Composition Caterina Di Maio Dipartimento di Strutture, Geotecnica, Geologia applicata all'Ingegneria, Universita della Basilicata, Italy Abstract. This paper reports experimental results relative to the influence of pore fluid composition on the peak shear strength of the Bisaccia clay and on the residual shear strength of several different clayey soils: the Ponza bentonite, commercial bentonite and kaolin, Bisaccia, Gela and Marino clays.