... 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...

...Rock Characterisation, Modelling and Engineering Design Methods Feng, Hudson & Tan (Eds) © 2013 Taylor & Francis Group, London, ISBN 978-1-138-00057-5 Experimental study on creep behavior of sandstone with pore water pressure and its constitutive modeling Y.J. Cao, W. Wang, J. Lü, T.G. Liu & Z...

...Modelling Rock Characterisation, Modelling and Engineering Design Methods Feng, Hudson & Tan (Eds) © 2013 Taylor & Francis Group, London, ISBN 978-1-138-00057-5 A generalized-plasticity-based model for sandstone considering time-dependent behavior Meng-Chia Weng Department of Civil...

... Abstract True triaxial tests have been carried out on two porous sandstones, Coconino ( n =17.5%) and Bentheim ( n =24%) to investigate the effect of the intermediate principal stress (σ 2 ) on compressive strength, failure-plane angle and failure mode. These rocks were selected because...

... of the valleys. Meadows spread over the high terraces and plateau hills. gravel soil slope plane high slope structural geology geological disaster freeze-thaw deformation residual gravel soil slope mudstone sandstone soil slope Reservoir Characterization deposit conglomerate river...

... occurs due to bending stresses (Amini et al. 2009). However, another mode of toppling failure, which mainly developed in interbedded hard rock (i.e. sandstone) and soft rock (i.e. mudstone, shale and limestone) slope is very common in Three Gorges Reservoir region (Chen et al. 2004; Dong et al. 2010...

... 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...

... ABSTRACT A series of uniaxial and triaxial tests are conducted on core samples of sandstone from Hunan highway region in China. The influence of the inherent anisotropy of sandstone on the mechanical characteristics, including the failure mode, failure strength and residual strength, has been...

... ABSTRACT Aseriesofpolyaxialcompressiontestsandindirecttensiontests withaxialconfinementsare performedtoassesstheeffectsoftheintermediateprincipalstressesontheelasticityand strengths of three types of sandstones. Over 50 rectangular shaped specimens (50x50x100 mm) are tested using a polyaxial...

... variation Deformational Characteristic shear stress volumetric strain dilation loading constitutive model Upstream Oil & Gas sandstone moduli deformation behavior hydrostatic stress Reservoir Characterization anisotropic degradation weak sandstone volumetric deformation...

... Reservoir Characterization classification longitudial wave velocity wave velocity structural geology Engineering rockmass nuclear power plant sandstone andesite basalt characteristic Upstream Oil & Gas weathered degree weathered tuff sandstone dynamic parameter tuff sandstone...

... were produced, had been selected. They were a sample of arkosic sandstone and a sample of polymict siltstone taken from two core boreholes of the diameter of 47.5 mm in the Ostrava- Karviná Coalfield. Because real rock samples, although taken from one borehole, show a considerably great variance...

... classification quarry water absorption absorption durability Engineering Geology abrasion loss magnesium sulphate soundness Reservoir Characterization rubble mound breakwater sandstone evaluation Upstream Oil & Gas criteria Ciria Cur armourstone limestone dry density ISRM...

... of three gorges shiplock slope in China, the numerical results agrees well with field measurements. Reservoir Characterization Engineering Upstream Oil & Gas interlayer input parameter reservoir simulation displacement Mayanpo slope excavation sandstone initial static loading...

... reservoir geomechanics wave velocity Deere uniaxial compressive strength Reservoir Characterization strength igneous rock point load index rock type Upstream Oil & Gas Miller sandstone deformability measurement laboratory test correlation rock strength compressive strength...

... the sandstone along the Alborz service tunnel which is currently excavated by a 5.2 m diameter Open TBM in Iran. 2 CONFIGURATION OF THE NUMERICAL MODEL Universal distinct element code (UDEC) is used for simulating the rock fragmentation mechanism by disc cutters. The key concepts of the DEM...

... reservoir geomechanics portal investigation Reservoir Characterization RMR highway tunnel structural geology strength parameter rock mass rock mass classification MPa limestone portal slope stability assessment flysch Upstream Oil & Gas tunnel sandstone agglomerate Shear...