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Rockburst grade evaluation and parameter sensitivity analysis based on SSA-PNN framework: Considering rock mass strength. [PDF]

PLoS ONE
The occurrence of rockburst is closely related to the strength and stress conditions of rock mass. The Lalin Railway tunnel in China was taken as an example, the strength and stress parameters of rock mass at 22 rockburst locations were obtained by using
Xiaoyan Zhou, Yimin Jiang, Zhenyi Wang, Yalei Wang   +3 more
doaj   +2 more sources

Dynamic Response Analysis of Roadway Surrounding Rock Induced by Dynamic Load under the Action of Hard and Thick Rock Stratum

Geofluids, 2023
In the process of coal seam mining, there are often hard thick key layers in the overlying strata. Due to the high strength and good integrity of the hard thick key layer, after the hard thick key layer is broken, the overlying strata will collapse and ...
Kaihua Liang, Quansen Wu, Quanlin Wu, Xiang Shi, Hong Zhao, Fuwu Ma, Zhaomin Zhang   +6 more
doaj   +1 more source

Height of the Fractured Zone in Coal Mining under Extra-Thick Coal Seam Geological Conditions

Advances in Civil Engineering, 2021
The height of the fractured zone caused by coal mining is extremely significant for safely mining under water, water conservation, and gas treatment. At present, the common prediction methods of overburden fractured zone height are only applicable to ...
Dequan Sun, Xiaoyan Li, Zhijie Zhu, Yang Li, Fang Cui   +4 more
doaj   +1 more source

Mechanism analysis and type determination of the rockburst of the Gaoloushan tunnel based on a study of rockburst fragments

工程科学学报, 2023
The Gaoloushan Tunnel is a control project for Longnan city and Jiuzhaigou, Sichuan Province. With the characteristics of "three high and one large," this project is a typical representative of a deeply buried, long highway tunnel under complex ...
Xiao-ming SUN, Chao REN, Dong-qiao LIU, Man-chao HE, Jin-kun YANG, Zhi-hu LI, Jia-jie ZHU, Jun-chao YUAN, Zhen-min QI   +8 more
doaj   +1 more source

Control and Application of Terrain Curvature on Dynamic Disasters: A Case Study of Coal and Gas Outbursts in the Pingdingshan Mining Area, China

Advances in Civil Engineering, 2021
Based on coal and gas outburst mining area topography, a risk evaluation index for mine dynamic disasters in relation to terrain curvature is presented by analyzing the terrain curvature formation and determining its classification and computational ...
Dequan Sun, Ying Chen, Xiaoyan Li, Chunhui Huang, Huairui Su, Rujiao Chen   +5 more
doaj   +1 more source

Sensitivity Analysis and Numerical Simulation Study on Main Controlling Factors of Surface Movement and Deformation in Strip Filling Mining under Thick Unconsolidated Layers

Geofluids, 2021
In many mining areas, there is a lot of pressed coal under buildings, railways, and water bodies, and there are geological conditions of thick unconsolidated layers, so the surface subsidence has certain particularity.
Dequan Sun, Quanlin Wu, Xiaoyan Li, Zhaomin Zhang, Xiaotian Xu, Yang Li, Quansen Wu   +6 more
doaj   +1 more source

Study on Occurrence Mechanism of Coal Pillar in L-Shaped Zone during Fully Mechanized Mining Period and Prevention Technology

Shock and Vibration, 2021
In order to study the occurrence mechanism of rock burst in L-shaped zone during a fully mechanized mining period, the No. 705 working face which is located in Baojishan Colliery is taken as a typical engineering background.
Zeng-qiang Yang, Hong-mei Wang, De-quan Sun, Xian-jian Ma, Ming-bao Xu, Nai-xin Si   +5 more
doaj   +1 more source

Study on Rockburst Tendency of Deep Underground Engineering based on Multi-Factor Influence

Electronic Journal of Structural Engineering, 2023
Rockburst disaster seriously threatens the construction schedule of underground tunnel engineering and the safety of construction workers. Rockburst prediction has become one of the critical methods for evaluation of surrounding rock stability and safe ...
Zihui Zhu, Feiyue Sun, Jiaqi Guo
doaj   +1 more source

Development of Rockburst Research: A Comprehensive Review

Applied Sciences, 2022
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
Meng Wu, Yicheng Ye, Qihu Wang, Nanyan Hu   +3 more
doaj   +1 more source

Research on rockburst proneness evaluation method of deep underground engineering based on multi-parameter criterion

Electronic Journal of Structural Engineering, 2023
The study of rockburst criterion is the key to predict the occurrence of rockburst. Based on the energy principle, a new multi-parameter rockburst criterion (RPC) were established.
Feiyue Sun, Wenlong Wu, Zhijia Wang, Zhihai Liu, Zhuang Shao   +4 more
doaj   +1 more source