...Rock Characterisation, Modelling and Engineering Design Methods Feng, Hudson & Tan (Eds) © 2013 Taylor & Francis Group, London, ISBN 978-1-138-00057-5 Deformation characteristics of bedded sandstone in uniaxial compression P.L.P. Wasantha & P.G. Ranjith Civil Engineering Department, Monash...

... area for sample, P is osmotic pressure on both ends of the sample. 2.3 Confining pressure and water pressure influence on fracture permeability Confining pressure stress and the influence of the fissure water pressure in fissure permeability, essen- tially influence deformation of structural plane...

... Artificial Intelligence rev scale property reusch interpretation Reservoir Characterization calibration rock mass property seismicity GSI discontinuum model machine learning resolution levkovitch length scale reservoir geomechanics plastic strain correlation deformation pre...

... Abstract Mechanical characteristics and energy properties of granite under uniaxial compression after high temperature have been researched. The results show that energy conversion during rock deformation and failure is a dynamic process, and it can be mainly divided into four subprocesses...

... triaxial creep tests The creep properties of sandstone under different conditions are compared and analyzed The test results show that: in the case of same confining pressure, pore pressure can increase the instantaneous elastic deformation and creep deformation but reduce the strength of sandstone...

... of internal meso-structure parameters as well. The deformation and failure of rock is simulated by tracing the extension of the microscopic cracks and the micromechanical behaviors. Results demonstrate that the meso-structure heterogeneity have considerable effects on the mechanical behavior of rock...

... compression test were carried out by using serve-control rock mechanics test system, through the stress and strain curve and failure characters of rock specimens, in order to analyze the influence of strength and deformation with different fissure angle and length under different confining pressures...

... continuous deformation field of rock material is showed microscopically in the process of damage by technology of 3D Digital Image Correlation under biaxial stress state. Based on characteristics of macroscopic deformation and micro-mechanical damage, the failure format and regulation of Jinping marble...

... bentonite University load ring deformation oedometer cell void ratio Rock Characterisation, Modelling and Engineering Design Methods Feng, Hudson & Tan (Eds) © 2013 Taylor & Francis Group, London, ISBN 978-1-138-00057-5 Influence of boundary condition on the swelling behavior of GMZ01 buffer...

...) The actual data used for recognition should be mul- tiple. On one hand, different types of data should be adapted and merged into the united fitness func- tion (shown as Eq. 2). On the other hand, these valid data, which represent the typically spatial and temporal characteristics of deformation and damage...

... hydrostatic and shear loading; (2) follows the associated flow rule for viscoplastic deformation; (3) adopts a creep modulus that varies with stress ratios; and (4) considers the primary and secondary creep behaviors of rock. This model requires 13 material parameters, comprising 3 for elasticity, 7...

... Abstract Taking the carbonaceous phyllite as investigative subject, which is the weak layer widely distributed in Yunfu pyrite, Guangdong province, the deformation characteristics and strength properties of the carbonaceous phyllite rock mass are analyzed through laboratory uniaxial...

... Abstract Natural rocks often contain a large number of microfissures that have great effect on the deformation, strength and failure mechanism of rocks. The engineering construction will change the stress magnitude and stress state, thus causing microfissure to propagate until a macroscopic...

... rock sample stress-strain curve deformation Rock Characterisation, Modelling and Engineering Design Methods Feng, Hudson & Tan (Eds) © 2013 Taylor & Francis Group, London, ISBN 978-1-138-00057-5 Acoustic emission behaviors of the Beishan granite under uniaxial and triaxial compression conditions...

... and reloading were observed. The linear character of the stress-strain response during reloading and unloading is more apparent at an increased confining pressure. Confining pressure reduces the difference of deformation modulus between unloading and reloading. The constitutive relationship for loading...

... calculation scheidegger method rock mass formula instability surge height renewable energy prediction landslide mass reservoir block unit dynamic change process deformation Upstream Oil & Gas energy method Pan Jiazheng method jiazheng method discrete element method Rock...

... Abstract Muzhailing railway tunnel is excavated mainly in fault zones, carbonaceous slate and sandstone using the drilling-blasting method. Geotechnical problems encountered in the tunnel during construction, such as large squeezing deformation with long duration and collapse of arch crown...

... rock bolt hydroelectric project Fracture Zone bhasin deformation instability construction displacement Bhutan powerhouse rock mass support system proceedings Himalaya machine hall Rock Characterisation, Modelling and Engineering Design Methods Feng, Hudson & Tan (Eds) © 2013 Taylor...

... applicable to tunnel sections far from the advanc- ing face. Curran et al. (2003) presented that in the numerical simulation of a tunnel, if the tunnel is first excavated and a passive support system installed there- after, the support system will carry no loads. This is because all deformations would have...

... Abstract Following the previous work about the relation between permeability evolution and rock creep deformation [1–2], triaxial creep tests of volcanic breccias under various seepage pressures were performed on rock specimens and their lateral deformation behavior in the accelerated creep...