... kaiser operation fracture progression international conference pb2 single-wall displacement redistribution mpbx instrument pillar ARMA 24 481 Integrating stress fracturing and bulking monitoring for deformation-based ground support design calibration in a deep caving operation Primadiansyah...

... direct incorporation into a numerical stress model. The method is verified using analytical cases of confined inelastic deformation as well as brittle failure around a tunnel. The method can be used to assess the redistribution of stresses and change in the loading of tunnels in seismically active mines...

... residual stresses in modelled specimens of rock to investigate the potential for damage to be present as a result of their redistribution. Residual stresses were formed under load, and once present the specimen was unloaded and damage was quantified through the number of broken subcontacts within the model...

... ABSTRACT: Tunnelling through squeezing ground may induce deformations and stress redistributions in a large area, thereby affecting the later construction of neighbouring underground structures. In general, the tunnelling-induced stress redistributions cause the surrounding ground...

... configuration 2 configuration 1 configuration mesh redistribution variation overlap setup australian centre strength test 2 ARMA 24 0610 Experimental Assessment of the Energy Dissipation and Deformation Capacity of Ground Support Systems Under Dynamic Loading: Insights from LaRonde Mine Dynamic...

... production in well group on the stress redistribution has not been well understood. A three-dimensional heterogeneous geomechanical model coupled with unconventional fracturing and reservoir simulation was established. Following the primary hydraulic fracturing and water injecting according to the pumping...

... ABSTRACT: Weakly consolidated sandstone reservoirs generally feature poor cementation, low strength, relatively high porosity and high permeability. Due to the significant effect of poroelasticity, stress redistribution resulting from the pore pressure perturbation around the injection well...

... to single and adjacent vertical backfilled stopes as well as through the CPB material. Through discussions on modeling parameters and output results, one is provided with insights into the mechanisms of stress redistribution allowing for further accuracies in simulating the behavior of the CPB material...

...-fracturing maximum stress proceedings geometry wellbore initial fracture firstly numerical model stress reversal region initiation Redistribution stress direction reservoir propagation ARMA 17-137 Large-scale Experimental Investigation of Refracture Reorientation and Field Evaluation in Sand...

.... In this work, we incorporate the likely mass rates of desorption driven by an increase in abutment stress and mediated by permeability evolution to define the rates and distributions of gas pressure changes. The changing pattern of pressure redistribution is identified, and parametric studies...

... Abstract This paper studies vertical stress redistributions around wellbores and reservoirs due to yielding and plastic deformations. The analyses in this paper compare between predictions of elastic, poroelastic, elastoplastic, and poroplastic material models. Two elastoplastic models...

... the stress redistribution around an inflating reservoir using the commercial software ABAQUS. The paper analyzes the results using well known methods, namely; the Ellipsoidal Inclusion Approach and the Deformation Analysis in Reservoir Space Approach. The analysis verified the results of the Finite Elements...

... such as tunnels and caverns for many years. And for him, this great disaster was large enough to realize that we must not make light of the natural force. Reservoir Characterization Rock Structure discontinuous rock mass Redistribution waste management Fluid Dynamics cavern characteristic rock mass...

... stress transient unloading and static stress redistribution on EDZ were studied and compared. The damage mechanism of in-situ stress transient unloading to rock mass was also studied adopting numerical simulation technique. The result indicates that the extent of EDZ is significantly influenced...

..., unloading the contact asperities and reducing the strain in the contact asperities. This process can be seen as a reduction in preload of the fracture, as the load is only redistributed from the contact asperities to the grout, the change in strain will be very local and consequently, the change...

... ABSTRACT: Three-dimensional velocity tomograms were generated on a daily basis to image mining-induced changes to the overburden above a longwall mine. The hypothesis was that a coherent redistribution of seismic velocity, due to the development of high-stress zones, could be imaged...

... point elevation). Three tests have been conducted in this series. Results of the tests demonstrated significant alteration of the pore water chemistry and redistribution of minerals in the heated zone of the experiment. INTRODUCTION The Engineered Barrier System (EBS) ThermalHydraulic-Chemical (THC...

...-fluid redistribution and inertial flow, as well as the presence of constant pressure boundaries. A method for visualization of cross-well pressure connectivity was developed which reveals good connection within individual lava-flow units, but poor pressure response across rubble zones separating lava...

...) is allowed to crack (break) [Figure 1 (b)]. The disks are cracked one at a time, and after each cracking event the stress in the neighborhood of the cracked disk is redistributed based on a nearest- neighbor rule (described in Section 2.2). This cycle of cracking and redistributing of stress continues until...

... in two stages : one in top part and another in bench. However, in fault and heavy fracture zone, more conservative method was adopted. displacement Redistribution excavation unstable block pattern 4 ground transportation pattern 2 relative displacement railway tunnel initial stress rail...