Prediction and prevention of rockburst in metal mines – A case study of Sanshandao gold mine

Cai, Meifeng

doi:10.1016/j.jrmge.2015.11.002

Cited by 109 publications

(44 citation statements)

References 2 publications

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“…Also, the methods have been developed for estimating the rock ability to a dynamic failure [3][4][5]. At that, most of the methods require the use of special test devices with increased stiffness, which are unique or produced by foreign manufactures.…”

Section: The Methods For Estimating the Rock Proneness To A Dynamic Famentioning

confidence: 99%

The specificities of deformations and failures of highly stressed hard rock massifs

et al. 2019

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According to modern concepts, the state of highly stressed hard rock massifs is mostly caused by the effect of gravitational-tectonic stress fields. At that, a probability of brittle rock failure in a dynamic form is very high. Such failures are always accompanied by the significant energy release accumulated during the deformation process. Based on the experimental studies of deformation and failure processes in various types of rock samples from the Kola Peninsula deposits, we have proposed the criteria for classifying rocks as prone to rock bursts. The information for assessing the rock proneness to dynamic failures can be obtained by analysing the strain curve at the pre-peak section when tested on the ordinary presses and testing devices according to the standard methods. If we study the processes of rocks' deformation and energy accumulation under the triaxial loading mode, we can establish the parameters for the occurrence of dynamic failure of rocks. This, in turn, will allow identifying the conditions of such failure in the investigated rocks for a specific mining-engineering situation and, thereby, coming to a scientifically-based prediction of the rocks' proneness to dynamic rock pressure occurrences.

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Section: The Methods For Estimating the Rock Proneness To A Dynamic Famentioning

confidence: 99%

The specificities of deformations and failures of highly stressed hard rock massifs

et al. 2019

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“…The elevation difference across the Kouquan fault zone is approximately 380 metres, and its width of influence is therefore = ⋅ 10ℎ = 2 × 10 × 380 = 7600 (18) The distance between the edge of the Tongxin coal mine and the Kouquan fault zone is approximately 1200 metres, which is smaller than the serious influence width of 0.3b (7600 m×0.3=2280 m).…”

Section: Overview Of Engineering Geology In Tongxin Minementioning

confidence: 98%

“…Pan et al predicted a mining rockburst disaster using the drill pipe torque method, the drilling cutting temperature method, and the charge-induced technique [15][16][17]. Cai et al argued that two necessary conditions for mining rockbursts are rocks with high strain energies and mining areas with high stress environments [18]. They performed a qualitative analysis and an assessment on the tendency of rockbursts within a deep mining area using multiple criteria.…”

Section: Introductionmentioning

confidence: 99%

A Risk Assessment Method for Rockburst Based on Geodynamic Environment

Zhu

Hong-wei

Han

et al. 2018

Shock and Vibration

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Rockbursts are the sudden release of accumulated energy in surrounding rock of roadway and stope. Current studies on the rockburst mechanism are primarily focused on underground mining space and mining activities, whereas efforts have rarely been focused on regional geological dynamics. Mining activities in areas of energy accumulation under the influence of regional geological dynamics can easily cause mine dynamic disasters such as rockburst. The paper statistically analysed the relationship between geological dynamic environment factors (mining depth, tectonic stress, vertical crust movement, active faults, and the ratio of hard rock on the roof) and rockbursts in China and determined the relationship between various factors and the risk of rockbursts. Using a fuzzy comprehensive evaluation method and an analytic hierarchy process (AHP), a risk assessment method for rockburst based on the geological dynamic environment was established. This method was applied to assess the rockburst risk for the Tongxin coal mine in China, and it was evaluated as a weak rockburst risk. The result was consistent with the actual situation. The method provides a new concept for the evaluation and prediction of rockburst in new coal mines or new mining levels.

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“…ey judged whether the rock burst occurred according to the positive or negative of the rock burst energy release rate and also judged the severity of rock burst according to the magnitude of the rock burst energy release rate. Cai et al [15], based on the relationship between energy and magnitude of the natural earthquake, predicted the rock burst by a practical example in a gold mine in China. ey concluded that the rock burst occurrence must meet corresponding conditions, which are internal geological conditions and external mining conditions.…”

Section: Introductionmentioning

confidence: 99%

Combined Early Warning Method for Rock Burst and Its Engineering Application

Qin

Chen

et al. 2019

Advances in Civil Engineering

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Rock burst is a common mine disaster often accompanied with casualties and property damage. In order to effectively predict and prevent the rock burst occurrence, an effective and accurate method for predicting rock burst is necessary. This paper first establishes the relationship between the drilling cuttings and the releasable elastic deformation energy. However, the traditional drilling cutting method has the defect that the drilling depth cannot reach the stress concentration area and the drilling cuttings cannot accurately reflect the internal stress variation in the deep part of coal body. So, an improved drill cutting method is presented to make up for these defects. Finally, the combined monitoring method based on the improved drilling cutting method and the microseismic monitoring method is established. It not only overcomes the limitations of a single prediction method but also effectively utilizes the advantages of improved drilling cutting method and the microseismic monitoring method. And this combined monitoring method is applied to the No. 3302 coalface of Xingcun Coal Mine. The obtained results indicate that the combined monitoring method can improve the prediction capabilities of the rock burst and provide novel insights for preventing the rock burst occurrence.

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Prediction and prevention of rockburst in metal mines – A case study of Sanshandao gold mine

Cited by 109 publications

References 2 publications

The specificities of deformations and failures of highly stressed hard rock massifs

The specificities of deformations and failures of highly stressed hard rock massifs

A Risk Assessment Method for Rockburst Based on Geodynamic Environment

Combined Early Warning Method for Rock Burst and Its Engineering Application

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