By Laloui, Lyesse (editor), Lyesse
Lately, colossal advances were made in knowing the coupling among chemical and organic techniques and mechanical and hydraulic behaviours in soils and rocks. whilst, experimentation and modelling features have improved considerably, permitting potent layout of geotechnical purposes. the necessity for such analyses arises, for instance, in chemical and organic soil development; nuclear, detrimental and municipal waste containment; petroleum and normal fuel extraction; methane hydrate exploitation; CO2 sequestration; and evaluation of pavement durability.
The 17th Géotechnique Symposium in Print came about on the establishment of Civil Engineers on three June 2013 and sought to handle the hot demanding situations which are rising from the interactions among multi-physical phenomena. those complaints collect the overseas study awarded on the symposium and released throughout problems with Géotechnique in addition to extra next learn released within the journal.
The papers chosen for the symposium hide a variety of geotechnical techniques, including:
- Experimental research and constitutive modelling of the bio- and chemo-mechanical behaviour of geomaterials.
- results of alterations within the pore water chemistry on soil and rock behaviour.
- Interactions among geometrical scales of numerous organic, chemical, actual and mechanical processes.
- Case stories of chemical and organic soil modifications.
- functions of bio- and chemo-mechanical versions in rising technologies.
Bio- and Chemo- Mechanical strategies in Geotechnical Engineering presents researchers and practitioners with a entire advent to the new advances within the region and precious perception into the advancements inside of this rising box.
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Extra info for Bio- and Chemo-Mechanical Processes in Geotechnical Engineering: Géotechnique Symposium in Print 2013
14(b), the model predicts a higher degree of reversibility than observed. The same effect was observed when using a saturated potassium chloride solution. As shown above, this difference between model predictions and test results does not arise at low stresses. An updated version of the model would require a refinement of the formulation to include the effect of applied stresses on reaction reversibility. Note, however, that reaction irreversibility is still compatible with the assumption of reversible microstructural strains.
1 M). 46 MPa (obtained from equation (2)). From the equilibrium of the clay–water system, the sodium cation predominates in the exchangeable sites of the clay. So, initially, the reference soil is initially a homoionic sodium-clay. Single-cation oedometer tests on saturated clay Di Maio (1996) carried out a series of oedometer tests on reconstituted samples of Ponza bentonite. This is a natural bentonite with 80% clay fraction, composed mostly of sodium montmorillonite, and a plasticity index of 320%.
Feedback mechanisms in chemomechanical multi-stage modelling of soil and sediment compaction. Comput. Geotech. 36, No. 6, 934–943. Karnland, O. (1997). Bentonite swelling pressure in strong NaCl solutions. Correlation between model calculations and experimentally determined data, Technical report 97-31. Stockholm, Sweden: Swedish Nuclear Fuel and Waste Management Company (SKB). Katti, D. , Schmidt, S. , Ghosh, P. & Katti, K. S. (2007). Molecular modelling of the mechanical behavior and inter- 31 actions in dry and slightly hydrated sodium montmorillonite interlayer.