Get Coupled thermo-hydro-mechanical-chemical processes in PDF

By Ove Stephanson (Eds.)

ISBN-10: 008044525X

ISBN-13: 9780080445250

One of the most crucial and interesting present steps ahead in geo-engineering is the improvement of coupled numerical types. They signify the elemental physics of geo-engineering strategies which could comprise the results of warmth, water, mechanics and chemistry. Such types offer an integrating concentration for the big variety of geo-engineering disciplines.The articles inside of this quantity have been initially offered on the inaugural GeoProc convention held in Stockholm and comprise a suite of strangely prime quality details no longer on hand in different places in an edited and coherent shape. This assortment not just merits from the newest theoretical advancements but in addition applies them to a few useful and vast ranging purposes. Examples comprise the environmental matters round radioactive waste disposal deep in rock, and the hunt for brand new reserves of oil and gasoline.

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Extra resources for Coupled thermo-hydro-mechanical-chemical processes in geo-systems: fundamentals, modelling, experiments and applications, GeoProc2003 conference held at the Royal Institute of Technology in Stockholm, Sweden, in October 2003

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For the 26 AD-equation a Peclet number of Pe=lO is used. This gives a spread in the RTD (dispersion) that is within the range of observed values in the field. The standard deviation of the transmissivities of the channels in the network model was chosen such that the RTD of a nonsorbing tracer also has a Pe=10. In the time scale presented there seem not be dramatic differences between the model results for the Network and the ADmodels. It should be noted, however, that the early arrival times are of special interest for radionuclides that decay.

In 1996, an electric heater was installed into the test pit and surrounded by a buffer of bentonite clay. 6 ton/m^ After the entire test pit was filled with bentonite, a watertight concrete lid was placed on the drift floor, which in turn was supported by steel bars from the ceiling of the drift. Because the rock was not fully saturated immediately around the test pit, a flooding pool was set up on the drift floor above the test pit. 5 months, followed by a 6-month cooling period. System responses, including temperature, moisture content, fluid pressure, stress, strain and displacement, were measured in both the bentonite and surrounding rock mass.

5 months, followed by a 6-month cooling period. System responses, including temperature, moisture content, fluid pressure, stress, strain and displacement, were measured in both the bentonite and surrounding rock mass. The experiment was completed in early 1998, and thereafter the monitoring sensors were recovered and recalibrated. The task for the DECOVALEX research teams was to predict the THM effects in the buffer material inside the test pit and in the surrounding rock, both during excavation of the test pit and the heater testing.

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Coupled thermo-hydro-mechanical-chemical processes in geo-systems: fundamentals, modelling, experiments and applications, GeoProc2003 conference held at the Royal Institute of Technology in Stockholm, Sweden, in October 2003 by Ove Stephanson (Eds.)


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