Results 71 to 80 of about 504 (182)

A Highly Accurate Method of Locating Microseismic Events Associated With Rockburst Development Processes in Tunnels

IEEE Access, 2017
Rockbursts occur frequently and cause serious damage in deep tunnels. Microseismic (MS) source location is of great importance and forms the foundation of the MS monitoring technology used in tunnel rockburst hazard mechanism analysis.
G. L. Feng, X. T. Feng, B. R. Chen, Y. X. Xiao   +3 more
doaj   +1 more source

LSTM-based rockburst risk prediction model incorporating attention mechanism and convolutional neural networks and its applications

矿业科学学报
Rockburst is particularly hazardous, rendering the accurate prediction of rockburst risks one of the urgent challenges in this field of research. This study proposes and establishes a long short-term memory (LSTM) rockburst risk prediction model (CAL ...
ZHANG Yu, WANG Junchao, GUO Zhengjia, FANG Kongyi   +3 more
doaj   +1 more source

Performance Evaluation of Hybrid PSO-BPNN-AdaBoost and PSO-BPNN-XGBoost Models for Rockburst Prediction with Imbalanced Datasets

Applied Sciences
The rockburst hazard is a primary geological disaster endangering the environment in underground engineering. Due to the complexity of the rockburst mechanism, traditional methods are insufficient to predict the rockburst hazard objectively, especially ...
Shujian Li, Pengpeng Lu, Weizhang Liang, Ying Chen, Qi Da   +4 more
doaj   +1 more source

Experimental investigation on rockburst characteristics of highly stressed D-shape tunnel subjected to impact load

Underground Space
Rockburst has always been a challenge for the safe construction of deep underground engineering. This study investigated the rockburst characteristics in highly-stressed D-shape tunnels under impact loads from rock blasting and other mining-related ...
Wuxing Wu, Fengqiang Gong, Zongxian Zhang   +2 more
doaj   +1 more source

Analysis of rockburst driving mechanism based on unbalanced force

IOP Conference Series: Earth and Environmental Science, 2021
C Y Li, F S Xie, P X Qin, Y Zhang, Q Yang, Y R Liu, Z S Li   +6 more
openaire   +1 more source

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   +1 more source

Rockburst mechanism and prevention technology for wide coal pillar return airway

Energy Science & Engineering
AbstractIn the Shaanxi‐Inner Mongolia region, where most mines employ wide coal pillar retention and dual entry layout techniques, mining pressure manifestations frequently occur during working face retreatment, posing significant challenges to safe and efficient coal production.
Zhensuo Wang, Yongli Liu, ZhiXiang Song, Li Cong, Yongtao Zhu   +4 more
openaire   +2 more sources

Rockburst Hazard Control Using the Excavation Compensation Method (ECM): A Case Study in the Qinling Water Conveyance Tunnel

Engineering
Rockburst disasters occur frequently during deep underground excavation, yet traditional concepts and methods can hardly meet the requirements for support under high geo-stress conditions.
Jie Hu, Manchao He, Hongru Li, Zhigang Tao, Dongqiao Liu, Tai Cheng, Di Peng   +6 more
doaj   +1 more source

Analysis of dynamic loading events and the risk of roadway rockburst

Meitan xuebao
Aim at the mechanism and risk assessment of rockburst of mine roadways, the energy release laws of roadway surrounding rock in different regional stress fields are analyzed.
Hongtao LIU, Zihan CHEN, Zhou HAN, Qinyu LIU, Zijun HAN, Chenglu ZHANG, Hongkai ZHANG   +6 more
doaj   +1 more source

Sidewall rockburst characteristics of highly stressed circular tunnel under impact load

Journal of Rock Mechanics and Geotechnical Engineering
This study investigated the sidewall rockburst characteristics of highly stressed circular tunnel subjected to impact loads resulting from rock blasting or other mining-related dynamic disturbances, aiming at exploring the influence of vertical prestress
Wuxing Wu, Fengqiang Gong, Zongxian Zhang   +2 more
doaj   +1 more source