A5050054664- Rock Mechanics and Modeling
- Landslides and related hazards
- Geotechnical and Geomechanical Engineering
- Geophysical Methods and Applications
- Tunneling and Rock Mechanics
- Geoscience and Mining Technology
- Geomechanics and Mining Engineering
- Drilling and Well Engineering
- Geotechnical Engineering and Analysis
- Geotechnical Engineering and Underground Structures
- Hydraulic Fracturing and Reservoir Analysis
- Grouting, Rheology, and Soil Mechanics
- Coal Properties and Utilization
- Structural Response to Dynamic Loads
- Temporomandibular Joint Disorders
- Dental Anxiety and Anesthesia Techniques
- Laser Applications in Dentistry and Medicine
- Mineral Processing and Grinding
- High-Velocity Impact and Material Behavior
- Seismology and Earthquake Studies
- Orthodontics and Dentofacial Orthopedics
- Thoreau and American Literature
- Reservoir Engineering and Simulation Methods
- Pain Management and Placebo Effect
- Mining and Resource Management
China University of Mining and Technology
2015-2025
Zhengzhou People's Hospital
2024
Shanghai Tunnel Engineering (China)
2024
State Key Laboratory for Geomechanics and Deep Underground Engineering
2018-2022
Tianjin Stomatological Hospital
2021
A new rockburst classification, innovative works in developing a "strainburst test machine" and an "impact-induced that can reproduce rockbursts laboratory were researched. New concepts proposed regarding the stress paths take into account both static dynamic stresses analogous to at excavation boundaries for generating artificially-induced strainburst impact-induced rockburst. As important method control, novel energy-absorbing bolt was developed, which has constant-resistance under impact...
Based on the “elastic modulus method” derived from hypothesis of strain equivalence and test data complete stress–strain curves marble, granite, sandstone under uniaxial compression, a damage model in form Logistic equation is proposed to simulate relation rocks. This can describe deformation process rocks compression satisfactorily. The used mathematical function simple with just four parameters, each parameter has distinct physical meaning. validity demonstrated by deduction analysis...
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. Consequently, rockburst control remains challenging in engineering field. In this study, mechanism of excavation-induced was briefly described, it proposed to apply excavation compensation method (ECM) control. Moreover, a field test carried out on Qinling Water Conveyance Tunnel. The following beneficial...
Rockburst are often encountered in tunnel construction due to the complex geological conditions. To study influence of unloading rate on rockburst, gneiss rockburst experiments were conducted under three groups rates. A high-speed photography system and acoustic emission (AE) used monitor entire process real-time. The results show that intensity decreases with decrease rate, which is manifested as reduction AE energy fragments ejection velocity. mechanisms proposed explain this effect: (i)...
For sustainable utilization of limited coal resources, it is important to increase the recovery rate and reduce mine accidents, especially those occurring in entry (gateroad). Entry stabilities are vital for ventilation, transportation other essential services underground mining. In present study, a finite difference model was built investigate stress evolutions around entry, true triaxial tests were carried out at laboratory explore wall under different mining conditions. The modeling...
The key to achieving rockburst warning lies in the understanding of precursors. Considering correlation characteristics acoustic emission (AE) parameters, a self-organizing map neural network (SOMNN) based method for precursor inversion was proposed. feature this cyclic data segmentation iteration process on thinking "interference signal screening", "key extraction", and "precursor inversion". rationality has been verified three groups experiments. results revealed that AE signals consist...
CH4 is the second-largest greenhouse gas and has a significant impact on global warming. China largest amount of anthropogenic coal mine methane (CMM) emissions in world, with mining (or emissions) accounting for 90% total energy industry emissions. The results emission inventories from previous studies vary widely, differences spatial temporal dimensions factors belowground being main points disagreement. Affected by policies “eliminating backward production capacity” “transferring base to...
To investigate the mechanism of rockburst prevention by spraying water onto surrounding rocks, 15 experiments are performed considering different absorption levels on a single face. High-speed photography and acoustic emission (AE) system used to monitor process. The effect sandstone analyzed from perspective energy failure mode. results show that higher degree, lower intensity after absorbing side sandstone. This is reflected in fact with increase level, ejection velocity fragments smaller,...
The relationship between slabbing failure and rockburst has become a hot issue in research. In this paper, the experimental system of impact is used to conduct simulation experiment induced by slab on metamorphic sandstone samples taken from deep-buried horseshoe-shaped tunnel Gaoloushan, with “pan-shaped” pits site laboratory experiments, which prove rationality results rockburst. quantitative analysis displacement field process buckling carried out, shows that structure will undergo long...