A constitutive model for crushed salt

Olivella, S.; Gens, Antonio

doi:10.1002/nag.220

Cited by 49 publications

(45 citation statements)

References 14 publications

(22 reference statements)

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“…Thus, the irreversible volumetric strain increases due to the opening of micro-cracks, and other relevant factors such as damage, permeability increase and long-term failure take place in this zone. To take into account the above-mentioned mechanical properties of rock salt, different constitutive models have been developed (Cristescu & Hunsche, 1998;Olivella & Gens, 2002;Hou, 2003;Minkley & Muehlbauer, 2007;Ma et al, 2012). In this thesis three well-established rock salt constitutive models are employed, namely LUBBY2, BGRa and…”

Section: Computational Modelmentioning

confidence: 99%

Probabilistic Analysis of a Rock Salt Cavern with Application to Energy Storage Systems

et al. 2016

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Section: Computational Modelmentioning

confidence: 99%

Probabilistic Analysis of a Rock Salt Cavern with Application to Energy Storage Systems

et al. 2016

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“…Another strategy has utilized relationships developed to describe the reconsolidation of crushed salt, attempting to unify the treatment of crushed and intact salt (Callahan, 1999;Olivella and Gens, 2002). All these relationships are purely empirical.…”

Section: Salt Permeability As a Function Of Mechanical Propertiesmentioning

confidence: 99%

Brine flow in heated geologic salt.

Kuhlman¹,

Malama²

2013

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This report is a summary of the physical processes, primary governing equations, solution approaches, and historic testing related to brine migration in geologic salt. Although most information presented in this report is not new, we synthesize a large amount of material scattered across dozens of laboratory reports, journal papers, conference proceedings, and textbooks.We present a mathematical description of the governing brine flow mechanisms in geologic salt. We outline the general coupled thermal, multi-phase hydrologic, and mechanical processes. We derive these processes' governing equations, which can be used to predict brine flow. These equations are valid under a wide variety of conditions applicable to radioactive waste disposal in rooms and boreholes excavated into geologic salt. 3We focus on the development of the governing equations with the intent to solve them analytically or in a simplified numerical manner, although we briefly summarize some available fully coupled three-dimensional numerical models and some historic modeling results. We non-dimensionalize the governing equations, and make some statements about importance of terms in the governing equations for physically plausible ranges of material property values.We summarize both in situ and laboratory brine migration testing in intact geologic salt, primarily focusing on tests performed under heated conditions relevant to high-level waste disposal. Supporting material is presented in appendices on relevant aspects of laboratory water content determination for bedded salt, the nature and evolution of the disturbed rock zone, and geologic salt permeability testing.In the final summary chapter, we provide a narrative description of the processes controlling both isothermal and heated brine inflow to excavations in geologic salt. Based upon our review, we recommend several potential in situ and laboratory tests, which could be conducted to increase understanding, parametrize numerical models, and confirm the importance of competing physical processes.4

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“…Thomas and Cleall [6] used a non-linear elastic constitutive model to describe the influence of osmotic potential on the expansive clays via the effect of chemical solute concentration. Olivella and Gens [7] presented a creep constitutive model for crushed salt. Loret et al [8] developed a mathematical framework for modeling chemically active saturated homoionic expansive clay behavior.…”

Section: Introductionmentioning

confidence: 99%

Implicit integration of a chemo‐plastic constitutive model for partially saturated soils

Zhang

Zhou

2008

Num Anal Meth Geomechanics

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SUMMARYA chemo-plastic constitutive model for partially saturated soils is proposed in this paper based on the existing models developed in Hueckel (Int. J. Numer. Anal. Meth. Geomech. 1997; 21:43-72) and Gallipoli et al. (Geotechnique 2003; 53:123-135). The chemical softening effects due to the increase in contaminant mass concentration are considered based on Hueckel's chemo-plastic model. Gallipoli's model is used to simulate the effects of suction and degree of saturation on mechanical behavior of partially saturated porous materials. In order to implement the proposed model in a finite element code, a fully implicit backward-Euler integration algorithm is put forward. Numerical solutions for the tests at local level and the application of the algorithm to the real boundary value problem demonstrate the accuracy and convergence properties of the proposed integration scheme.

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A constitutive model for crushed salt

Cited by 49 publications

References 14 publications

Probabilistic Analysis of a Rock Salt Cavern with Application to Energy Storage Systems

Probabilistic Analysis of a Rock Salt Cavern with Application to Energy Storage Systems

Brine flow in heated geologic salt.

Implicit integration of a chemo‐plastic constitutive model for partially saturated soils

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