A5013812835- Rock Mechanics and Modeling
- Geotechnical and Geomechanical Engineering
- Geomechanics and Mining Engineering
- Geophysical Methods and Applications
- Geoscience and Mining Technology
- Tunneling and Rock Mechanics
- Landslides and related hazards
- Coal Properties and Utilization
- Cellular and Composite Structures
- Structural Response to Dynamic Loads
- Seismology and Earthquake Studies
- Drilling and Well Engineering
- Earthquake Detection and Analysis
- Mineral Processing and Grinding
- Geotechnical Engineering and Underground Structures
- earthquake and tectonic studies
- High-Velocity Impact and Material Behavior
- Structural Analysis and Optimization
- Hydraulic Fracturing and Reservoir Analysis
- Oil and Gas Production Techniques
- Structural Engineering and Materials Analysis
- Advanced materials and composites
- Grouting, Rheology, and Soil Mechanics
- Belt Conveyor Systems Engineering
- Safety and Risk Management
Liaoning University
2022-2025
Northeastern University
2018-2023
China University of Mining and Technology
2020
Liaoning Technical University
2018
In current practice of bolt reaming and anchoring roadways in soft coal rock mass, resin cartridges bend easily under the strong pushing stirring bolts, accumulates bolt-reamed area does not participate stirring. As a result, bolts encounter high drilling resistance cannot reach bottom drillholes. The effective anchorage length is far less than actual length. Bolts are centered, shear misaligned at joint surface area, which leads to cracking whole solid large deformation bolts. This study...
Large-diameter pressure relief boreholes are one of the primary measures for preventing coal mine rockburst. However, implementation these disrupts original support structure roadway surrounding rock, leading to conflicts with rock control. Therefore, and energy dissipation behavior variable-diameter in was studied. Using a typical rockburst-prone as engineering background. Based on elastic-plastic mechanics theory, elastic solution stress distribution around borehole extent zone analyzed....
Using water to displace carbon dioxide adsorbed in coal can prevent and gas outbursts. However, the mechanism of continuous injection replacing gases has not been well studied. An experiment with same pressure different adsorption equilibrium pressures for displacing was conducted. The variation patterns amount displaced dioxide, time, displacement rate, ratio, action ratio were analyzed. modes are discussed. results show that change consists three stages: rapid, slow, stop growth stages....
To explore the causes of mine tremors in coal mines with sandstone roofs, a three-point bending loading experiment was designed for composite layers, and fracture interlayer shear slip characteristics layers were studied using optical measurement acoustic emission techniques. The results show that rock led to sliding deformation, while fracturing greatly promoted sliding. maximum accelerations during deformation 0.6 mm/s2 3.8 mm/s2, respectively. During proportion events increased continuous...
To address the conflict between pressure relief and support effectiveness caused by large-diameter boreholes in roadway surrounding rock, this paper proposes a method involving variable-diameter for energy dissipation. With typical rock burst coal mine as engineering context, study establishes mechanical model through theoretical analysis to examine elastic stress distribution around within body. Physical similarity simulation tests are conducted investigate influence of conventional...
In order to obtain the characteristics of influence cyclical impact loading on coal-rock damage under local static load constraints, evolution laws factors and cracks during process constant impulse cyclic incremental raw coal briquette were studied. The experimental results show that existence restraint improves resistance coal-rock, factor shows obvious zoning characteristics. When is in an elastic state, partition with a larger area has stronger resistance; when plastic weaker Increasing...
The problem of repeated immersion-induced fatigue damage in engineering coal measures sedimentary rock, including coal-rock pillars, reservoir bank slopes, and water-rich tunnels at the boundary mine underground reservoirs, has profound implications for their stability, safety, operation, can even lead to geological disasters. To address this issue, paper aims construct a constitutive model that accurately captures comprehensive process deformation failure water-bearing rock. It explores...
Rock burst is a worldwide prevention and control problem, the main reason for its occurrence concentration of stress in surrounding rock coal roadway. Therefore, it great significance to realize rapid accurate detection distribution roadway burst. Based on principle charge induction, this paper adopts research method combining theoretical analysis indoor field tests carry out study induction seam roadways using self-developed monitor. A intensity relation level carried out. Indoor law graded...
Overlying strata movement has an important effect on the stability of coal along goaf. In order to study impact overlying during fully mechanized top-coal caving mining, a simulation experiment was conducted Liuxiang Coal Mine using digital image correlation (DIC) and stress electric measurement methods. The characteristics movement, concentration deformation evolution coal, interlayer sliding between rock are analyzed. following conclusions could be drawn. can classified into two stages:...
Water from hydraulic technology affects the desorption of gas coal seams. Gas behavior is critical information for control in mines. In this study, a designed seam water injection simulation experimental device was utilized to conduct dynamic experiments on samples at different adsorption equilibrium pressures, analyzing law under injection, as well role replacement, imbibition and blockage desorption. The results showed that altered rate coal, causing fluctuating attenuation water-injected...