... international symposium kaolinite rock mechanics symposium arms10 29 molecule clay mineral drilling fluid management & disposal drilling fluid formulation calculation water molecule hollow site adsorption energy Abstract Kaolinite is often a cause of deformation in soft-rock tunnel...

... been implemented in DEM software PFC2D to certify its applicability in geotechnical practice. The results show it works well with different bonding shape and it can represent the mechanical behavior of biconcave-shaped cementation. The stress field calculated by modified Dvorkin's theory is more...

... with saturation and was estimated by back calculations. Results indicate that the mercury intrusion porosimetry determined pore size distribution can adequately represent the shrinkage evolution of Tage tuff. Moreover, the elastic modulus due to capillary stress follows 1-tanh relation with the drying shrinkage...

... by applying rock properties approach such as cohesion, density and friction angle. The calculation method using Monte Carlo statistical, which applied three above components that takes into account as a calculating basis. This statistical approach is to determine the failure probability with the results...

... in the center of the specimen is calculated using theoretical solution and these results are shown in graphical representation. Furthtermore, this method is confirmed just befor failure for specimen that is made of mortar during experiments. Rock mechanics diametrical compression test tensile strain...

... compressive strength with the triaxial compression test of rock cores sampled in soft sedimentary rocks in Japan. Good agreement of model calculated and measured data demonstrates that the confined compressive strength of sedimentary rocks can be predicted from seismic velocity using rock physics models...

... Characterization risk and uncertainty assessment fatality input parameter calculation slope failure fo value slope design economic loss reservoir geomechanics risk assessment acceptable criteria pof slope Institut Teknologi Bandung probability consequence steffen Risk analysis criteria pof slope...

... flow rate Fluid Dynamics calculation particle grout fracture permeability Experimental and Numerical Study on Fracture Grouting by Fine Particle Cement K. Yoneyamaa*, T. Okunoa, A. Nakayaa and H. Tosakab a Shimizu Corporation, Tokyo, Japan bProfessor, Tokyo University, Tokyo, Japan...

... Upstream Oil & Gas pillar failure spatial reasoning strength metals & mining Engineering pillar progressive collapse safety factor determination Simulation instability pillar load pillar Artificial Intelligence Voronoi diagram calculation height ratio mined-out area...

... proposed a change in the test procedure in order to obtain the in situ stress, but it was not implemented. The numerical model presented in this paper allows the calculation of the in situ stresses and considers the test and loading geometry, as well as the crack formation. 3. LARGE FLAT JACK TEST METHOD...

... of Mining Disaster Prevention and Control, Shandong University of Science and Technology P.R. China Abstract: Mining subsidence of overlying strata is a three-dimensional problem which has a large calculation scope. The present numerical methods have given answers to rock mechanics aspect, however...

... roof umbrella method oblique model civil engineering roof umbrella calculation cohesion roof method University parallel model distinct element method particle numerical simulation pipe fore polling pipe yamaguchi university THE OPTIMUM DISTANCE OF ROOF UMBRELLA BY USING...

... pressure in-situ stress wellbore integrity failure criteria calculation drucker-prager criterion MPa different rock failure criteria principal stress ISRM International Symposium 2010 and 6th Asian Rock Mechanics Symposium - Advances in Rock Engineering, 23-27 October, 2010, New Delhi, India...

... logging data for the dynamic modulus and from laboratory mechanical test data for the static modulus. The Young s modulus for the rock is calculated by the Hashin-Strikman lower bound, Hertz-Mindlin contact model and Gassmann s equation. For modelling static Young s modulus, in the Hertz- Mindlin contact...

... the Poisson s rate value of the rock mass is one of the an important rock mechanical and rock engineering parameters. This value has to be used for calculating the deformations of the tunnel or the dam, among the others. Unfortunately, measuring this value is very difficult and time consuming for rock masses...

... Engineering displacement Simulation modulus ratio stress ratio stress ratio-modulus ratio composite foundation pile-soil stress ratio single pile model pile model pile group mechanics calculation cushion cap cushion Bearing Performance group effect flexible pile multi pile...

... Reservoir Characterization displacement spillway slope maximum horizontal displacement mechanical parameter Engineering slope surface excavation maximum vertical displacement elevation reservoir geomechanics calculation principal stress distribution map excavation face distribution...

... reservoir simulation displacement development prediction coefficient excavation Upstream Oil & Gas displacement calculation tan lining friction angle fictitious support pressure radial displacement utilisation ratio primary stress state support pressure interpolation...

... in Zhou [3] and Zhou et al [4]. Reservoir Characterization cavern borehole excavation machine learning Upstream Oil & Gas rock bolt Rock stress reservoir geomechanics calculation horizontal stress situ stress Artificial Intelligence cavern excavation MPa stress measurement...

... of an access tunnel within the construction lot Faido. rail transportation calculation multifunction station faido structural safety verification Reservoir Characterization Gotthard Base Tunnel ground transportation rock support Crossover Fault Zone pillar stability excavation cross...