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Mechanisms of rock burst in hard and thick upper strata and rock-burst controlling technology
Arabian Journal of Geosciences, 2016Rock burst frequently occurs during coal mining at the Huafeng Coal Mine because of the high-strength, thick conglomerate strata above the coal seam. Given this situation, theoretical analysis, physical simulation, and field measurement methods were applied to study the mechanism of rock burst of hard and thick upper strata in this paper.
Weijia Guo +4 more
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Numerical simulation of rock bursts
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1991Abstract The mathematical description of dynamic fracture processes, in particular of rock bursts in hardcoal mining, can be advanced by the use of dynamic iterative methods. From a comparison of two different numerical approaches the dynamic finite difference method as used in the FLAC program turned out to be the most suitable.
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Rock bursting phenomena in a superficial rock mass in southern central Sweden
Rock Mechanics Felsmechanik Mecanique des Roches, 1982Rock Bursting Phenomena in a Superficial Rock Mass in Southern Central Sweden Rock bursting phenomena have been observed in connection with excavation of two shallow sited rock tunnels in the Forsmark area in southern, central Sweden. The tunnels are excavated in gneiss granite and the rock cover varies between 5–15 m.
A. Carlsson, T. Olsson
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New Rock Burst Prediction Method
Advanced Materials Research, 2012This paper gives a new rock burst prediction method of potential index, according to the rock deformation and failure of the rock and the relationship between energy transfer, the characteristics of uniaxial compression stress-strain entire process curve.
Lin Deng, Yan Lv, Rong Gui Deng
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Models of translatory rock bursting in coal
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1981Abstract A model material and a model technique have been found which show, in laboratory tests, the typical features of translatory rock bursts (bumps) in coal mines. The qualitative observations made using the model, agree with theoretical predictions published earlier.
W. Burgert, H. Lippmann
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One approach to the prediction of rock bursts
Journal of Mining Science, 1998Thus, as a result of the experimental discovery of previously unknown pendulum waves, the elementary carriers of which are geoblocks differing in hierarchic level, with dynamic-kinematic characteristics that depend on the stress-strain state of the rock masses and the dimensions of the focal zones of rock bursts and explosions, we are able to propose a
M. V. Kurlenya +2 more
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Fractal character and mechanism of rock bursts
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1993Abstract Rock bursts are a potential hazard to mine structures and underground personnel. Many studies have been conducted to understand the causes of rock bursts and to predict their occurrence, however, few successes have been achieved. In this paper, the associated microseismicity of rock bursts is studied by using fractal geometry and damage ...
H. Xie, W.G. Pariseau
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Rock bursting as a surface instability phenomenon
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1984Abstract Surface instability of a semi-infinite layer of cohesive-frictional material under plane-strain uniaxial compression is analyzed. Material behaviour is described by a deformation theory for rigid-plastic, incompressible material with a Mohr-Coulomb yield condition.
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THE CLASSIFICATION OF ROCK BURSTS
2015Rock bumps classification considering the main peculiarities of appearence and parameters for their evaluation have been developed.
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A 2-d model of skin rock burst and its application to rock burst monitoring
2020A.V. Dyskin +2 more
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