Mechanical and hydraulic behavior of rock salt in the excavation disturbed zone around underground facilities

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

“…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…”

“…Tab. 2.2 also includes parameter sets which are used by Hou (2003) for the LUBBY2 material model; these values are obtained for rock salt of the Asse mine in Germany. By comparing these three data sets, it seems that the identified values for parameters in this study are in good agreement with the other studies.…”

“…Khaledi, Mahmoudi, Datcheva & Schanz (2016b). It should be stated that the value of η * M is adopted from Hou (2003). The constitutive parameters utilised to provide the numerical results are presented in Tab.…”

“…The minimum and maximum values of the uncertain parameters are chosen based on previous experiences (Hansen et al, 1984;Desai & Zhang, 1987;Sane et al, 2008;Guo et al, 2012) and engineering judgement. The values corresponding to the Maxwell dashpot coefficient are chosen based on Heusermann et al (2003) and Hou (2003).…”

Determination of Damage Constitutive Behavior for Rock Salt Under Uniaxial Compression Condition with Acoustic Emission

“…The main reason for damage failure of the disposal rocks is the generation and development of cracks in excavated disturbed zones (EDZs) along the boundary of cavity and rock [1,2]. The mechanical properties of rock salts (evaporites with halide components) have been a major focus of study in last few decades [3,4].…”