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Keywords: displacement
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Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-255
... characterization band c-anchor strength grout-rock interface c-anchor interfacial bond strength norway government interface displacement borehole norwegian public road administration ABSTRACT: Rock anchors are used to stabilise large scale infrastructures. The literature describes four failure...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-253
... mathematics of computing reservoir geomechanics deformation geologist asia government excavation tunnel excavation difference application japan government shotcrete steel displacement flac3d geology geological subdiscipline kajima corporation kajima technical research institute...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-294
... europe government deformation geology metals & mining real time system montanuniversitaet leoben reservoir characterization installation excavation displacement application cumulative displacement itasca consulting group table 2 underground excavation reservoir geomechanics...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-333
... brazil government geological subdiscipline computational mesh geologist geology deformation mpm zhang mathematics of computing reservoir geomechanics displacement particle compgeo topography runout pontifical catholic university upstream oil & gas material point method...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-251
... ABSTRACT: Yielding elements as a part of the shotcrete lining represent state-of-the-art tunnelling in overstressed weak ground conditions. These elements avoid overstressing of the shotcrete lining during the early curing process, where the displacement rates are highest and the shotcrete...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-295
... ABSTRACT: In case of tunnels with arbitrary geometries, solutions for stresses and displacements in the tunnel exterior might be derived with the aid of the conformal mapping technique of the complex variable method. Thereby, the physical tunnel domain is mapped onto a fictitious unit circle...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-296
... ABSTRACT: At the construction Lot SBT 3.1 of the Semmering Base Tunnel long-term displacement increases caused an overutilization of the support measures over a length of approximately 100m behind the excavation face. It was concluded that these increases were caused by a strain softening...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-259
... in the anchor cable can effectively suppress the displacement of pile top and improve the bearing capacity of piles, which is better than the seismic performance of single-row piles on reinforcing slopes. In particular, the use of optimized multi-anchored piles to reinforce the slope can effectively solve...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-260
... model coupling the crack propagation in the grout annulus to capture the load-displacement performance of cable bolts under axial loading. The majority of the input parameters associated with mechanic properties of the cable bolt and grout are readily determinable by laboratory tests. At the end...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-308
... falling on mining personnel working below and also resisting the surface deformation. Steel wire mesh, the most widely used form of surface support, is labour intensive and provides passive support. The passive support requires the rock mass to displace before it can provide any support reaction. A new...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-279
.... An alternative approach based on machine learning is proposed here in order to evaluate the stresses and displacements at equilibrium in the lining of a supported tunnel. Based on data previously obtained by numerical simulations, the Bagging Method applied to Artificial Neural Networks (ANNs) is used. We...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-321
.... Explicit models used for the design of tendon rock support can therefore produce localized axial and shear loading in rockbolts crossing discrete joints. With strain-based and displacement-based failure criteria becoming increasingly common for predicting the performance of tendon ground support...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-283
... group shale bedding plane displacement native element mineral rock type mudstone geogrid stratigraphy minneapolis anchor bench 17 cable anchor debswana diamond company reinforcement cross-section design acceptance criteria friction ABSTRACT: Jwaneng Mine is an open pit located...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-336
... ABSTRACT: To ensure safety during the construction of underground structures, the present and future conditions of rock and tunnel supports, such as displacements, stresses, and plastic regions, must be estimated and predicted by appropriate measurements and numerical simulations. However...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-299
... construction stages consisting excavating pilot tunnels, primary lining and second lining greatly disturbed the strata. Comparing with the subway station with symmetrical pilot tunnels arrangement, the curves of surface settlement and the surface horizontal displacement generate a certain offset. The region...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-347
... the model. Discontinuum models with four different joint angles and a single isotropic continuum were analysed with the relatively near field and far field vertical displacement from each model recorded. It was found that the discontinuum models can show more or less displacement than the isotropic...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-281
... europe government reservoir characterization upstream oil & gas mineral mesostructure mudstone localisation fracture multiscale figure 3 excavation micro-and meso-structural characteristic international journal displacement characteristic orientation reproduce deformation macroscale...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-311
... excavation point 5 tunnel proceedings switzerland government reservoir geomechanics lining shaft geologist europe government displacement vibration evaluation molasse marl lopez-hernandez underground particle accelerator thickness ua57 tunnel hl-lhc reinforcement 15th ISRM Congress...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-342
... displacement plate tectonics israel government tunnel lining relation journal figure 5 segmental tunnel lining figure 1 circular tunnel radial displacement modeling international journal geologist lining tunnel underground space technology stiffness segment lining geometry 15th ISRM...

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