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Keywords: strength
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Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-277
... south africa government reservoir characterization rectangular pillar geologist data mining geological subdiscipline pillar layout pretoria equation pillar metals & mining pillar strength circular pillar geology geometry dimension napier university malan reservoir...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-265
... upstream oil & gas diameter international journal geology reservoir geomechanics equation asia government reservoir characterization gauge geologist india government geological subdiscipline interface stiffness rock mechanic strength kharagpur experimental investigation...
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-2023-257
..., already in the design phase of a construction project. geologist europe government grout sandstone upstream oil & gas reservoir geomechanics resin 01 strength orientation resin 02 stabilization germany government geological subdiscipline conglomerate research figure 2 geology...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-276
... upstream oil & gas china government rock-concrete interface shear strength geologist asia government geological subdiscipline simulation geology reservoir characterization strength interface reservoir geomechanics engineering numerical simulation civil engineering sandstone...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-258
... to minimize the amount of sprayed shotcrete layers due to long waiting time and mobilization of equipment between the spraying of individual layers (Beapure 1994). finland government sustainability shotcrete microfibrillated cellulose air emission geology sustainable development strength...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-327
... characteristic brittle characteristic geological subdiscipline numerical study strength reproduce experiment plastic deformation mechanism 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG Numerical Study of Brittle Characteristics of Deep Buried Conglomerate...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-340
... reservoir geomechanics sheorey rmr classification stability application resistance junction strength cmri-ism rmr sedimentary rock geology gallery geological subdiscipline seam xvb pillar seam xvii bhelatand amalgamated colliery ssf central mining research institute singh 15th ISRM...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-318
... ABSTRACT: GSI has been applied for about 30 years and JRC for about 50 years. They are associated with either the Hoek-Brown based shear strength criterion for rock masses and continuum modelling , or with the Barton-Bandis based shear strength criterion for rock joints for use...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-301
... attention is given to the configuration of the fractured zone and its dependence on the orientation of the tunnel. Using this analysis as reference, the effects of stiffness and strength anisotropy as well as of the in-situ stress anisotropy are examined. The analyses reveal that either strength anisotropy...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-315
... and utilizes breakable particles to manifest cleavage failure. The new model is verified by comparing numerical stress bulbs from a point load analysis against a finite element solution and by comparing unconfined compression strength test results from Asan Gneiss GBM against Jaeger's ‘plane of weakness...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-308
... under compression to mimic roof strata having rock bolts in a highly stressed mine roadway. The liner supported model showed greater stiffness and peak strength than the steel mesh model and were in good agreement with the experimental results. The bolts only and the steel mesh supported models were...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-261
... that extends underground 340 m (1245 ft). The vent shaft fan operates in normal conditions at 18,000 rpm and moves an air flow Q of 70,800 m 3 /sec (2.5 million ft 3 /min). geology strength blast induced vibration artificial intelligence mpa equation upstream oil & gas machine learning...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-321
... geomechanics rockbolt rockmass displacement geologist displacement rockmass shear stiffness geology canada government strength infinite strength interface shear stiffness boundary interface stiffness interaction modelled rockbolt tensile capacity differential displacement diederich grouted...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-249
... of the segments because the helical segment has a pitch angle (Figure 1). The inclined contact can induce the side force and bending moment of the hydraulic cylinder, which can arouse oil leak or plastic deformation of rod and cylinder parts. To guarantee the buckling strength of cylinder and seals parts...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-284
... 2001 and Diederichs 2007). geology europe government geologist hydraulic fracturing canada government upstream oil & gas excavation geological subdiscipline lac du bonnet granite reservoir characterization underground excavation localization martin rock mech strength united...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-283
... clastic rock bedding plane geologist sedimentary rock structural geology mudrock diamond mining geological subdiscipline strength representation quartzitic shale bedding plane africa government metals & mining botswana government reservoir characterization itasca consulting...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-319
... and the width-height ratio were examined. The results indicate that pillars exhibit reduced resistance to inclined loads with a shear component, while the strength increases with an increased width-height ratio. INTRODUCTION This study focuses on analyzing the rock pillars commonly employed as a support...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-324
... rock fracturing. The models were calibrated against data sets of uniaxial/triaxial compression and Brazilian tests. Stress-Strain curves and failure mechanisms of models were compared to the experimental results, it was shown that the calibrated models could capture the strength and the brittle failure...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-263
... ABSTRACT: The bond strength at the aggregate-cement paste interface is affected by the microstructure of the interfacial transition zone (ITZ). However, the influence of substrate crystal structure on the rock-shotcrete interface behaviour has received limited attention. This study...

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