... amplitude, AE frequency, and b-value that are measured by using PFC are able to simulate the actual rock failure. The simulated rock burst signals are closely related to the AE measurements obtained from the rock triaxial compression test. 1. Introduction Rock burst is a type of rock failure that occurs...

... Abstract Evolution characteristics of the irreversible strains and mechanical parameters of Jinping marble were investigated using the combination of uniaxial and triaxial compression tests as well as triaxial cyclic loading and unloading tests. Compared with the results of stress-strain...

... Abstract In laboratory experimental techniques, we have different experimental approaches to realize in situ stress state around the underground, true triaxial test, confined triaxial compression test and confined triaxial extension test. True triaxial test can generate a general stress state...

... property indirectly. Two series of frictional sliding experiments were conducted on sandstones with various physical and mechanical properties. In one series of tests, triaxial compression tests were conducted in artificial saw-cut fractures in Berea sandstone (little clay contents). In another series...

... obtained from drained triaxial compression tests and propose a viscoelastic constitutive equation. The results of three types of triaxial compression tests, e.g., constant-strain-rate test, constant-stress-rate test and creep test, on artificial methane-hydrate-bearing sand specimens are reviewed, mainly...

... analysis mudstone dependency loading geomaterial Upstream Oil & Gas Deformation property triaxial compression test Deformation Characteristic Effects of Stress and Strain on Deformation Properties of Mudstones Evaluated for Loading and Unloading Conditions Janaka J. Kumaraa*, Kazuo Tanib...

... tests are greater than those obtained from the triaxial compression tests. Both stress conditions give similar internal friction angle. More important the results indicate that the Brazilian tensile strength can not be correlated with the two stress conditions. It is recommended that an extension...

... permeability evolution fracture reservoir geomechanics experiment characteristic triaxial compression test permeability Upstream Oil & Gas stress state true triaxial test intermediate principal stress Contribution from Laboratory Experiment to the Deep Underground Repository - as a fundamental...

..., the experimental methods of drained triaxial compression test for artificial CO 2 -hydrate-bearing sandy sediment were developed. The mechanical properties of CO 2 -hydrate-bearing specimen were compared to those of CH 4 -hydrate-bearing specimen. Upstream Oil & Gas artificial sediment recovery...

..., the threedimensional constitutive relations of the improved St. Venant body based on generalized plasticity potential theory are deduced first, and the new three-dimensional model subsequently. Numerical simulation of triaxial compression tests validate the new rheology model. The new rheology model can be applied...

... one or several scalars are adopted to characterize the isotropic damage processes; the tensor damage ones, where secondorder, fourth-order or even eighth-order damage tensor are necessary to account for anisotropic damage effects. reservoir simulation tensor triaxial compression test...

... Abstract Multiple-step Loading Triaxial Compression Test (ML-TCT), allows evaluating shear strength parameters, i.e. cohesion and friction angle from a single specimen. The test consists of a series of consolidation and shearing steps, and in each step the axial loading is stopped or reversed...