... elasticity modulus moisture content reservoir geomechanics strength Siltstone compression test triaxial compressive strength mechanical parameter uniaxial compressive strength rock sample fitting formula Reservoir Characterization Upstream Oil & Gas formula sandstone triaxial compression...

... emission) tests data. Determine the crack initiation by using the LSR method. Combined with the stress-strain data and acoustic emission data in the compression test, we can get the crack initiation from theAE date. Comparing these crack initiations in different calibration accuracy, we can get...

... Abstract Biaxial stress field is one of the classical forced states of surrounding rock in underground group caverns. So far, the data of biaxial compressive test of rock is still so less. In this note, macroscopic stress-strain curve is given in different loading path while free surfaces...

... and triaxial compression tests. Based on the tests on natural and saturated carbonaceous phyllite, the elastic constitutive equations of the carbonaceous phyllite, considering the closing of micro cracks, are established; and the deformation characteristics and strength properties of water-weakening influence...

... failure plane is formed. In order to study the strength properties of such microfissure rocks, and provide basic data for investigating the water inflow and mud burst mechanism of tunnel excavated in microfissure-well-developed rocks, a series of triaxial compression tests under different loading path...

... waste management Reservoir Characterization real time system AE parameter acoustic emission crack initiation stress Rock mechanics Beishan Granite uniaxial failure process Upstream Oil & Gas confinement compression test characteristic ae parameter triaxial compression condition...

... Abstract The laboratory results of axial compression test with different angle between loading direction and normal direction of bedding plane are introduced. Due to the high density of bedding plane in the schist, the test result show a significant anisotropic in uniaxial compressive strength...

... specimen Reservoir Characterization acoustic emission crack growth compression test granite loading failure process Artificial Intelligence Rock mechanics laboratory lavasan granite uniaxial compression test deformation crack propagation transducer ISRM-Sponsored International Symposium...

...ISRM-Sponsored International Symposium on Rock Mechanics: Rock Characterisation, Modelling and Engineering Design Methods Simulation of Multiple-Step Loading Triaxial Compression Test on a Mudstone by a New Damage Model A. Taheri Tokyo University of Science, Japan K. Tani Yokohama National...

... describes the strength and deformation behaviour of Jurong Formation sedimentary rocks in Singapore. In this study, uniaxial and triaxial compressive tests as well as indirect tensile tests had been carried out on different sedimentary rocks, i.e. siltstone, limestone, sandstone and mudstone. During...

... joint element (Goodman 1968) to study the ABSTRACT The strength of jointed rock masses is usually anisotropic and depends on the behavior of discontinuities and intact rocks. In the present study, Particle Flow Code in 3 Dimensions (PFC3D) is used to simulate the compression tests of jointed rock so...

... features. Conventional triaxial compressive tests under confining pressure been used as a simple and effective way to investigate the progressive failure process in rock material. However, intermediate principal stress can t be considered in conventional triaxial compression tests. The paper presents...