... Abstract The long-term deformation behavior of the Callovo-Oxfordian and Opalinus clay rocks has been extensively investigated with laboratory experiments under various thermo-hydro-mechanical conditions. For the highly consolidated clay rocks, the effective stress is both theoretically...

... los Recursos Naturales y Medio Ambiente, Universidad de Vigo, Spain M.J. Mosquera & F. Elhaddad Dpt. De Física-química de la Facultad de Ciencias de la Universidad de Cádiz, Spain ABSTRACT: This study evaluates the efficacy of a tetraethoxysilane used as consolidant (Estel 1000) and a nanoconsolidant...

... was connected to the syringe pump. The upper attachment was opened to the atmosphere in constant flow method or attached to a reservoir for transient pulse method to measure permeability. 24 hours consolidation was carried out under tar- get consolidation pressure and temperature for each specimen. Afterward...

... and enlargement phase and at intersection of access gallery and shaft. Consolidation grouting, backfill concrete, fore poling and shotcrete by rebar used in order to solve mentioned problems. Pressure shafts excavation were carried out continually from Oct. 2005 to Feb. 2009 (40 months). Reservoir...

... with various thickness, built in and consolidated up to Ms > 80 MPa. The abutments were designed as the low beams founded in the embankment. 5.1 Foundation of the viaduct pillars Depending on the location and the height of the pillars and the load on the foundations, the follow- ing foundation dimensions were...

... discussed. Importance of the key parameters, possibility of their definition and experience from different projects are put in relation with the most used final lining systems. Reservoir Characterization consolidation borehole concrete lining excavation reservoir geomechanics groundwater level...

...Eurock 2005 -Impact of Human Activity on the Geological Environment - Konecny (ed) © 2005 Taylor & Francis Group, London, ISBN 04 1538042 1 Consolidation inertial completion M. El Tani Lombardi Eng. Ltd.. Minusio-Locaruo, Switzerland ABSTRACT: The contact consolidation is often used...

... The paper presents a study on the performance of some current consolidation products when applied in volcanic tuffs from Azores. Two blocks were taken from a deposit, coming from dismantled buildings, in the Terceira Island. Three consolidating products, one ethyl silicate, one epoxy and one...

... hollow cylinder tests on the mudrock were also modelled numerically using parameters derived from consolidated-undrained (CU) triaxial tests, assuming linear elasticity, pressure dependent elasticity and linear elasticity/plasticity, of which only the latter model yielded predictions of strengths...

... consolidation diameter subway tunnel global deformation modulus Reservoir Characterization subway twin tunnel prevention rock mass twin tunnel caraca subway twin tunnel excavation structural geology numerical analysis lining settlement Caraca Subway tunnel deformation future...