... element techniques were performed to understand the rock mass deformation and the displacements along the joints. A dynamic and pseudo-static analysis was also conducted to assess the behavior of the tunnel subjected to dynamic loads (earthquake). In a discrete elements code, like UDEC, the driving force...

... compressible fluid, small deformation, isotropic geometerial. The governing equations for coupled flow and mechanics come from mass and linear-momentum conservation laws. Under the assumption for earth displacement, the governing equation for mechanical deformation of the solid-fluid system can be expressed...

... to study the effect of shockwaves on the drillability performance of a particular drill rod in comparison to the rotary and percussive drilling methods. In this study, the diameter of drill bit was varied from 0.1 m to 0.25 m and the responses of the rock domain i.e., stresses and displacements developed...

... classification isrm international symposium identification investigation Reservoir Characterization Upstream Oil & Gas drilling rig asian rock mechanics symposium 29 drillability index synergistic element Drilling drilling operation displacement borehole variation amplitude drilling system...

... the rock spalling test is modelled using a PC with a powerful GPU. Upstream Oil & Gas isrm international symposium rock failure process hydraulic fracturing Brazilian test loading plate displacement asian rock mechanics symposium 29 failure process vertical displacement fracture...

... to determine stresses evolution through the measure carried out in MHM-URL. The method was established by taking into account the fact that the reference displacement is known at the first test and those of successive measurement can be determined from a finite element modeling (FEM) (Code-Aster). Semi...

... deep in-situ stress, but there are some limitations in determining the direction of the principal stress and the requirements of the testing environment. The stress relief method is an indirect measurement method which can get the in-situ stress by measuring the displacement of the borehole wall caused...

... hydraulic head excavation structural geology displacement hydraulic conductivity experiment fracture Hydro-Mechanical-Chemical (HMC) Simulation of Groundwater REcovery Experiment in Tunnel (GREET) Yusuke Ozaki, Masayuki Ishibashi, Hironori Onoe and Teruki Iwatsuki Japan Atomic Energy Agency, Gifu...

... the weights and biases using optimization methods to minimize the mean square error between the predicted and the target values. Some commercial codes such as MATLAB have provided for convenient use of ANN. Upstream Oil & Gas isrm international symposium Artificial Intelligence displacement...

... beforehand to make necessary precaution actions. In order to deal with the challenges, SINTEF has developed a comprehensive procedure, combining continuous rock stress measurements and displacement measurements with 2-D and 3-D numerical modelling. Continued rock stress measurements and rock stress change...

... measured displacements. Aiming at an easy application of the back analysis method to engineering practice, the author proposes a continuum model for simulating the mechanical behaviour of jointed rocks. The applicability of the method is demonstrated by physical model tests carried out in laboratory...

... Upstream Oil & Gas cavern pelitic schist excavation reservoir geomechanics displacement anisotropic rock underground cavern Reservoir Characterization strength schistosity structure asian rock mechanics symposium 29 initial rock stress isrm international symposium discontinuity...

... information residual risk warning level tunnel safety risk management deviation stability criteria excavation Action Level tunnel construction asian rock mechanics symposium 29 construction displacement isrm international symposium continuous comparison system behavior Managing Residual...

... horizontal and vertical displacements were detected by Structure from Motion (SfM) method. This study aims to explore possibility that the seismic damages to the Tawarayama Tunnel influenced by ground deformation. 1. Introduction A moderate-size earthquake on April 14, 2016 (21:26 JST-Japan Standard Time...

... adopted mainly owing to the lack of experiments. In this study, numerical analysis was conducted to grasp a rough outline of the influence of round length on the displacement and stress of support during excavation. Based on the results, field tests were conducted to examine the actual behavior...

... Oil & Gas pore pressure slip velocity slip experiment displacement experiment asian rock mechanics symposium 29 permeability deformation region fracture Injection-induced Slip Characteristics of a Rock Fracture Under High Temperatures Sho Takeyamaa*, Hiroki Yamanea, Noriaki Watanabea...

..., which lead to the failure of supporting system for the initial roadway. The roof sinks, rib spalls, influencing zone expands, which seriously affects the normal safety production. The formation parameters are shown in Table 1. metals & mining displacement reservoir geomechanics isrm...

... for general expression. When the initial displacement of the ground in the absence of the rock bolt ui(1) is given, the resultant ground displacement considering ground-rockbolt interaction u(1) can be expressed as follow; 10th Asian Rock Mechanics Symposium (ARMS10), Singapore The 2018 ISRM International...

... Abstract Stability of underground excavations in mining and tunneling is one of the most significant concerns of geotechnical engineers. Rock reinforcement methods can be used to increase rock strength and minimise the displacement of unstable rock mass. It is important to understand how...

.... The current study accounts for the differing expectations of these shotcrete support systems depending on the order of system component installation, and how deformation-based monitoring of these shotcrete systems can be used to assess performance. metals & mining Martin shotcrete displacement...