Discussions on rockburst and dynamic ground support in deep mines

Li, Charlie C.; Mikula, Peter; Simser, Brad; Hebblewhite, Bruce; Joughin, William; Feng, Xiaowei; Xu, Nuwen

doi:10.1016/j.jrmge.2019.06.001

Cited by 71 publications

(30 citation statements)

References 5 publications

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“…Li et al summarized pretreatment methods for rockburst, mainly including blasting, decompression drilling and hydraulic fracturing, and introduced the experience of rockburst support in Australia, Canada and South Africa [172]. Simser presented some methods used in Canada to reduce risk of rockburst in deep mines and proposed that with a continuous increase in mine depth, a pervasive installation of a support system with dynamic load bearing capacity may become necessary [172].…”

Section: Rockburst Prevention and Controlmentioning

confidence: 99%

“…The main prevention and control measures for rockburst in some mines and tunnels are listed in Table 7 and summarized in Figure 10. Simser presented some methods used in Canada to reduce risk of rockburst in deep mines and proposed that with a continuous increase in mine depth, a pervasive installation of a support system with dynamic load bearing capacity may become necessary [172].…”

Section: Rockburst Prevention and Controlmentioning

confidence: 99%

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Development of Rockburst Research: A Comprehensive Review

Wang

et al. 2022

Applied Sciences

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Rockburst is a difficult problem in underground resource development and infrastructure construction. With scientific and technological progress, more research technologies and methods to prevent rockburst have been proposed and applied. Research content has become more comprehensive, and positive progress and achievements have been made. However, due to the complexity of rockburst control factors and the sudden occurrence of rockburst, the occurrence mechanism and accurate prediction of occurrence intensity and time are still difficult worldwide problems. In this paper, the research development and achievements of rockburst are reviewed. Firstly, various definitions and types of rockburst are briefly summarized. Then, research progress and achievements in four aspects are comprehensively reviewed, including methods and techniques of rockburst research (theoretical research, numerical simulation, physical model tests and in situ monitoring), mechanism of rockburst, classification and prediction of rockburst (empirical criteria, in situ monitoring, mathematical model approaches and rockburst chart) and prevention and control of rockburst. Of particular significance is that the classification and prediction with prevention and control are summarized in detail. Finally, limitations, deficiencies and some promising directions for future research are listed.

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Section: Rockburst Prevention and Controlmentioning

confidence: 99%

Section: Rockburst Prevention and Controlmentioning

confidence: 99%

Development of Rockburst Research: A Comprehensive Review

Wang

et al. 2022

Applied Sciences

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“…The mentioned dynamic rock pressure manifestations (DRPM) result in flow process disruption or more serious consequences and require preventive actions based on effective prediction techniques. However, despite research done in this area, the problem of such phenomena prediction and prevention remains unresolved [1][2][3][4] since, among other things, it requires simultaneous account of a lot of factors [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. One of these factors is the influence of tectonic faults, the size of these zones of influence cannot be directly measured and requires advanced study.…”

Section: Introductionmentioning

confidence: 99%

Assessing the zones of tectonic fault influence on dynamic rock pressure manifestation at Khibiny deposits of apatite-nepheline ores

Shabarov¹,

Куранов²,

Kiselev³

2021

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Assessing the zones of geologic features influence is a task of dynamic rock pressure manifestation prediction. Under rock pressure manifestations this paper understands rock bursts and micro rock bursts, namely, the coordinates of the recorded damage centers in mine workings and pillars the moment a rock burst or a micro rock burst was recorded. The paper determines the distances from the recorded dynamic rock pressure manifestation points in mine workings to tectonic faults in the rock mass of the Kukisvumchorr apatite-nepheline ore field on the Kola Peninsula. The methods of statistical analysis for the distance value frequency uniformity were used for data processing.

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“…It is well known that the excavation activities change the stress field of rock and the mining method, excavation order, and support time have effects on the stress change [2]. erefore, some theoretical methods and practical technologies are proposed and developed to adjust the stress and energy in targeted areas, which improves the stability of rock mass in deep mines [3]. e stress state of the rock involves a series of complex formation processes [4][5][6], including the mechanical interactions between the exposed rock mass and the original rock, surrounding rock, and support system [7,8].…”

Section: Introductionmentioning

confidence: 99%

Improving the Stability of Subsurface Structures in Deep Metal Mines by Stress and Energy Adjustment: A Case Study

Liu

Tan

et al. 2021

Advances in Civil Engineering

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In deep hard-rock mines, the failure of subsurface structures (e.g., tunnels, stopes, and shafts) has been a significant problem affecting mining safety due to the high-stress environment. In this paper, the mechanism of structural failure and instability is discussed, and optimized excavation methods are proposed for stress control in deep gold mines. Based on the field observation and investigation of the joints distribution and rock failure modes at 800–1200 m depth of several large gold mines and a typical ultradeep borehole (2017 m depth) in northwest Jiaodong Peninsula, three engineering methods for reducing stress, including the stress transferring by mining optimizations, pressure relief by boreholes, and energy release in advance by optimizations of excavation and support, are analyzed by numerical simulation and field monitoring. Results show that stress reduction by excavation alone is limited and the backfill mining method is more conducive to stress transfer than the opening stope method. Roof contacted backfill can produce an unloading zone around the stope and reduce the stress of the surrounding stope. Relief boreholes can reduce the stress concentration of stopes, but the effect of cutting seams generated by presplitting blasting on pressure relief is not significant. The technology “short excavation and short support” releases less energy. By increasing the bench height and the reasonable timing of support by calculating, the elastic strain energy of rock in the shaft is prereleased, which benefits the long-term stability of the shaft.

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Discussions on rockburst and dynamic ground support in deep mines

Cited by 71 publications

References 5 publications

Development of Rockburst Research: A Comprehensive Review

Development of Rockburst Research: A Comprehensive Review

Assessing the zones of tectonic fault influence on dynamic rock pressure manifestation at Khibiny deposits of apatite-nepheline ores

Improving the Stability of Subsurface Structures in Deep Metal Mines by Stress and Energy Adjustment: A Case Study

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