... barrier in the southern, eastern and western parts in terms of stresses and dilatancy of the salt rock, numerous geomechanical finite-element calculations were performed taking into account the specific geological situation and mining geometry, as well as location-specific material parameters. The barrier...

... Abstract Prediction of landslide surge in reservoir lies in the calculation of sliding velocity. For the present, the application of formula commonly used for predicting sliding velocity in projects has been limited within a certain range in that both the complicated influencing factors...

... level is 1466.0~1537.0 m, working face level is 1383.6~1402.3 m, the average depth is 85 m. The average thickness of surface loose layer is 30m, the average thickness of is 35 m. The thickness of the coal seam is about 6m. coalbed methane calculation boundary condition thin base rock coal...

... width (10m & 20m) before and after the mining-induced influence by the workface. Combination of the above theoretical calculations, simulation and underground test results are considered to determine a reasonable width scope of district sublevel coal pillar design from 8.9 meters to 11.9 meters...

... of wastes. The first model deals with the emplacement in drifts located at the 860-m level. The second model considers the borehole disposal concept involving the emplacement of waste canisters in vertical boreholes. The calculations were performed for a time period of 10,000 years. The calculated stresses...

... value, as well as the internal force distribution of the pile was analyzed. After the calculation and analysis of the particular slope, the result shows that: the embedded anti-slide pile not only can protect the slope under the static situation, but also can satisfy the requirements of the anti-seismic...

... ABSTRACT A stress calculation method was proposed for the new stress measurement technique using the borehole slotter device. The 2D borehole slotter is an instrument which is used in HQ boreholes (96–104 mm diameter), and allows calculation of 2D stress tensor in a plane normal...

... Reservoir Characterization calculation pipe umbrella method construction Upstream Oil & Gas ground condition unexpected change section modulus pipe umbrella system stability weak ground tunnel spile numerical calculation unsupported span failure mechanism ABSTRACT Weak...

... geologic modeling reservoir geomechanics criterion waste management Upstream Oil & Gas geomechanical safety analysis geological modeling overburden calculation Reservoir Characterization dilatancy boundary jife code three-dimensional structure dilatancy geomechanical model...

... stress ispresented,whichintegratesthestratadenudationsimulation,numericalelasto-plastic calculation and neural networkinversion. The methodtakesthe geo structure order processinto accountbyelasto-plasticcalculationandsimulatesthestratadenudationprocessbysurface excavation. The method includes several...

..., to calculate the equivalent MC rock mass strength parameters for axisymmetric tunnels in plastic or brittle rock. These are shortly described in the following. 2 BACKGROUND Brittle behavior of the rock mass is represented with a sudden drop in its strength parameters after failure, ABSTRACT The responses...

... mechanical behaviour waste package long term mechanical behaviour host rock equation well integrity calculation experimental investigation plastic strain numerical modeling ABSTRACT In this paper, a storage cell for the high level radioactive wastes is studied in order to identify...

... of displacement or stress of surrounding rocks by measuring; calculate the excavation process using numerical model, adjust the material parameters until the calculation results are consist with the measured data; then calculate the next process, predict the variety of deformation and stress of rocks; forecast...

... calculation iterative solver procedure Wellbore Design Rock mechanics processor Failure analysis Upstream Oil & Gas parallel procedure Parallel Computation speedup rock failure process analysis Computation data transmission solver module computer algorithm ISRM-Sponsored...

... displacement shotcrete utilization loading Upstream Oil & Gas shotcrete lining tunnel shotcrete stress distribution strength measurement Point boundary shotcrete shell deformation force equilibrium calculation lining monitoring point tangential displacement University...

... equilibrium calculation dilatancy angle Hoek fractured rock mass Upstream Oil & Gas non-dimensional pressure Serrano coefficient non associative strength tanδ tanω Olalla expression constant dilatancy angle criterion failure criterion non linear failure criterion equation...