Rivizi, Zarghaam H., Sattari, Amir S., Motra, Hem B. and Wuttke, Frank (2017) Effective parameter evaluation in heterogeneous cemented geomaterials subjected to high temperature, pressure and constrained deformations. [Paper] In: Second International Symposium on Coupled Phenomena in Environmental Geotechnics. , 06.09.-07.09.2017, Leeds .

Abstract

Effective parameters related to thermal and mechanical properties change due to application of applied stress and heating in heterogeneous cemented geomaterials. These changes are measured using indirect wave methods using compression wave velocity. A direct dependence is observed in P wave velocity with increase in the applied stress and inversely with temperature rise of the sample. A numerical method based on Poisson Random Lattice (PRL) is develop to simulate this phenomenon. The increase and decrease in compression wave velocity is related to closure and opening and further branching of micro fissure in the sample. The developed method is able to simulate Thermo-Mechanical (TM) fractures in heterogeneous rock samples.

Effective parameter evaluation in heterogeneous cemented geomaterials subjected... | Request PDF. Available from: https://www.researchgate.net/publication/319251487_Effective_parameter_evaluation_in_heterogeneous_cemented_geomaterials_subjected_to_high_temperature_pressure_and_constrained_deformations [accessed Jan 08 2018].

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