Analysis of a rock slide stabilized with a toe-berm: a case study in British Columbia, Canada

Corkum, A. G.; Martin, C. Derek

doi:10.1016/j.ijrmms.2004.04.008

Cited by 34 publications

(18 citation statements)

References 11 publications

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“…The different influence of the scale effects on the maximum calculated displacement values between the two-and three-dimensional numerical models is emphasized. This is due to the differences in slope and block geometries assumed in this paper and the models of Hencher et al (1996) and Corkum and Martin (2004) and to the role of kinematic confinement in three-dimensional distinct element models.…”

Section: Block Sizementioning

confidence: 87%

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Evaluating Kinematic Controls on Planar Translational Slope Failure Mechanisms Using Three-Dimensional Distinct Element Modelling

Brideau

Stead

2012

Geotech Geol Eng

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This paper investigates the importance of kinematic release mechanisms on planar translational slope failure using three-dimensional distinct element codes. The importance of the dip and dip direction of the rear, basal and lateral release surfaces and their influence on failure mechanism, dilation, and the development of step-path failures is illustrated. The three-dimensional block shape and volume of the unstable rock masses simulated with the different discontinuity set geometries are characterized. Two assumed three-dimensional slope models are investigated in order to assess the importance of varying kinematic confinement/release mechanisms. These two assumed boundary conditions are shown to be critical in the development of asymmetrical rock mass deformation patterns. Scale effects due to the block size and discontinuity persistence are shown to control the calculated displacement and failure mechanisms. The numerical modelling results are also demonstrated to be sensitive to the assumed normal and shear stiffness of the discontinuities. The influence of the factors investigated on the failure of a single rock block versus a rock mass are compared and discussed.

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Section: Block Sizementioning

confidence: 87%

“…They reported higher maximum displacement values for larger blocks. A study by Corkum and Martin (2004) using 3DEC obtained higher displacement and volumetric dilation values as the number of blocks in their models was increased (i.e. smaller blocks).…”

Section: Block Sizementioning

confidence: 96%

Evaluating Kinematic Controls on Planar Translational Slope Failure Mechanisms Using Three-Dimensional Distinct Element Modelling

Brideau

Stead

2012

Geotech Geol Eng

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“…In this section of the paper, we investigate the influence of each individual observed major discontinuity and the number of blocks on both the failure mechanism and associated slope damage at Vajont using a similar approach to that used by Corkum and Martin. 50 In order to investigate the effect of discontinuities on slope behaviour, a series of Slope Model simulations was carried out for nine different assumed discontinuity configurations. All discontinuities included in the block models, as well as the sliding mass, are shown in Fig.…”

Section: Numerical Model Set Upmentioning

confidence: 99%

The possible role of brittle rock fracture in the 1963 Vajont Slide, Italy

Havaej

Wolter

Stead

2015

International Journal of Rock Mechanics and Mining Sciences

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“…It follows that the identification of discontinuities is complex, and Stead et al suggested the use of a combination of limit equilibrium analysis and numerical modeling techniques to maximize the advantages of both. 14) Corkum and Martin 19) simulated the displacement of rock blocks and a toe-berm using the discrete element method (DEM). They reported that the simulated displacement of the blocks and the berm were in good agreement with the observed displacement.…”

Section: Introductionmentioning

confidence: 99%

The Deformation Modes of Rock Slopes due to Excavation in Mountain-Type Mines

et al. 2015

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This paper discusses an investigation of mining-induced elastic deformation of a cut rock slope formed in a mountain-type mine using a two-dimensional finite element method. The horizontal elastic deformation mechanism is discussed, including the effects of the Poisson's ratio, slope angle and progression of the excavation. The results show a clear dependence of the deformation modes characterized by extension, contraction or shear distortion of rock mass, on these three effects, in which the direction of rock movement at the surface due to excavation was opposite. Four effects contribute to the deformation mechanism in mountain-type mines: the Poisson effect (PE), the distributed load effect (DLE), bending effects and shear distortion. Forward surface displacement of the cut rock slope was found to occur during the early stages of excavation due to the release of horizontal compressive stresses due to bending effects around the middle of the mountaintop. As the excavation progresses, forward or backward horizontal surface displacement was found to occur due to PE or DLE, respectively, which depends on the Poisson's ratio in the subsequent stages of excavation. Asymmetric stress release due to excavation affects the horizontal deformation of the mountain, and induces a moment enhancing the backward displacement due to shear distortion. It should be noted that the direction of the surface displacement of the rock slope could change from forward to backward as the excavation progresses, even though the rock slope may be stable. This is very important in the interpretation of surface displacement monitoring using the Automated Polar System and/or Global Positioning System. In the interpretation of the internal displacement measured using extensometers, we should consider extension during the early stages of excavation, followed by slight contraction during the latter stages, as a sign of a stable cut rock slope in a mountain type mine.

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Analysis of a rock slide stabilized with a toe-berm: a case study in British Columbia, Canada

Cited by 34 publications

References 11 publications

Evaluating Kinematic Controls on Planar Translational Slope Failure Mechanisms Using Three-Dimensional Distinct Element Modelling

Evaluating Kinematic Controls on Planar Translational Slope Failure Mechanisms Using Three-Dimensional Distinct Element Modelling

The possible role of brittle rock fracture in the 1963 Vajont Slide, Italy

The Deformation Modes of Rock Slopes due to Excavation in Mountain-Type Mines

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