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Rockburst prediction and prevention in underground space excavation

Underground Space
The technical challenges associated with deep underground space activities have become increasingly significant. Among these challenges, one major concern is the assessment of rockburst risks and the instability of rock masses.
Jian Zhou, Yulin Zhang, Chuanqi Li, Haini He, Xibing Li   +4 more
doaj   +5 more sources

Mesomechanism of Effects of Water on Strain Rockburst Prevention

Advances in Civil Engineering, 2021
In deep mining engineering, rockburst is an instantaneous release of a large amount of strain energy stored in rock mass, in which occurrence is closely related to initial high stress state and excavation unloading effect.
Beibei Liu, Fujun Zhao, Qiuhong Wu, Bin Wang, Jianuo Tan, Tao Feng   +5 more
doaj   +3 more sources

Comparative Study on the Prevention and Control Effects of Rockburst Between Hydraulic Fracturing Sections and Blank Sections [PDF]

Sensors
Influenced by various factors such as the complex environment and high key layers in coal mines, hydraulic fracturing technology has gradually become the main means of controlling the hard roof strata to prevent and control rockburst in recent years ...
Shuo Yang, Jiang Bian, Aixin Liu, Xiaoyang Li, Fuhong Li, Xingen Ma, Siyuan Gong   +6 more
doaj   +3 more sources

Estimation of active rockburst prevention effectiveness during longwall mining under disadvantageous geological and mining conditions

Journal of Sustainable Mining, 2016
Underground longwall mining of coal seams in the Upper Silesian Coal Basin is currently being carried out under increasingly difficult geological and mining conditions.
Łukasz Wojtecki, Petr Konicek
doaj   +4 more sources

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

Journal of Rock Mechanics and Geotechnical Engineering, 2016
Rockburst is a kind of artificial earthquake induced by human activities, such as mining excavations. The mechanism of rockburst induced by mining disturbance is revealed in terms of energy in this context.
Meifeng Cai
doaj   +4 more sources

Occurrence mechanism and prevention technology of rockburst, coal bump and mine earthquake in deep mining

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
Rockburst, coal bump, and mine earthquake are the most important dynamic disaster phenomena in deep mining. This paper summarizes the differences and connections between rockburst, coal bumps and mine earthquakes in terms of definition, mechanism ...
Kun Du, Ruiyang Bi, Manoj Khandelwal, Guichen Li, Jian Zhou   +4 more
doaj   +4 more sources

Experimental study on the effect of water absorption level on rockburst occurrence of sandstone

Journal of Rock Mechanics and Geotechnical Engineering
To investigate the mechanism of rockburst prevention by spraying water onto the surrounding rocks, 15 experiments are performed considering different water absorption levels on a single face.
Dongqiao Liu, Jie Sun, Pengfei He, Manchao He, Binghao Cao, Yuanyuan Yang   +5 more
doaj   +4 more sources

Prediction and classification technology of rockburst hazard in deep buried and high in-situ stress tunnel [PDF]

Scientific Reports
With the increasing number of deep-buried tunnel constructions in China, the possibility of rockburst hazard during tunnel construction in high-stress, hard rock environments also rises.
Hui Li, Youjie Yang, Zhiqiang Zhang, Li Tang   +3 more
doaj   +3 more sources

Scale parameters of soft structures for surrounding rock erosion prevention in rockburst-prone roadways. [PDF]

Sci Rep
Practical experience in coal mines has suggested that establishing a loose and soft structure in the surrounding rock of roadways can play a role in wave attenuation, energy absorption and erosion prevention, which is conducive to the prevention of and reduction in the severity of rockburst disasters in coal mines.
Yongliang H, Jiewen P, Xiaoyuan S, Liying S.   +3 more
europepmc   +5 more sources

Dynamic numerical simulation analysis of rockburst grade evaluation based on rock mass strength [PDF]

Scientific Reports
The occurrence of rockbursts is closely related to the stress environment and structural characteristics of rock mass. The Lalin Railway Tunnel in China was taken as a case study, a modified method for evaluating rockburst grades was proposed based on ...
Yalei Wang, Jinming Xu, Yan Zhang
doaj   +3 more sources