A5100623661- Rock Mechanics and Modeling
- Geomechanics and Mining Engineering
- Geotechnical and Geomechanical Engineering
- Landslides and related hazards
- Geoscience and Mining Technology
- Coal Properties and Utilization
- Geophysical Methods and Applications
- Grouting, Rheology, and Soil Mechanics
- Geotechnical Engineering and Analysis
- Geotechnical Engineering and Underground Structures
- Tailings Management and Properties
- Tunneling and Rock Mechanics
- Drilling and Well Engineering
- Hydraulic Fracturing and Reservoir Analysis
- Civil and Geotechnical Engineering Research
- Mineral Processing and Grinding
- Groundwater flow and contamination studies
- Hydrocarbon exploration and reservoir analysis
- Mine drainage and remediation techniques
- Enhanced Oil Recovery Techniques
- Blasting Impact and Analysis
- Groundwater and Isotope Geochemistry
- Metamaterials and Metasurfaces Applications
- Mercury impact and mitigation studies
- Mining and Gasification Technologies
Shandong University
2013-2025
Shandong University of Science and Technology
2015-2024
EVRAZ (Canada)
2024
Taiyuan University of Technology
2023-2024
Xiamen University of Technology
2012-2024
Guiyang Medical University
2024
China Three Gorges University
2024
Chongqing University
2024
Nanjing Medical University
2023
Jiangsu Province Hospital
2023
The variation of the in situ stress state is closely related to various factors. In also an important indicator guide mining production. study measurement and its distribution characteristics has always been a basic very work mine this study, deep mines Linyi Mining Area were considered as research object. regard, law each was studied. We found that relationship between principal stresses σ H > v h , which belongs strike‐slip regime. regime, lateral Earth pressure coefficient greater than...
Simultaneously manipulating multiple physical fields plays an important role in the increasingly complex integrated systems, aerospace equipment, biochemical productions, etc. For on-chip systems with high integration level, precise and efficient control of propagation electromagnetic waves heat fluxes simultaneously is particularly important. In this study, we propose a graphical designing method (i.e., thermal-electromagnetic surface transformation) based on null medium to thermal...
To determine ground stress behavior under the special condition of a regenerated roof, we established model elastic rectangular cantilever thin plates. Moreover, critical conditions for bending and fracturing roof during mining were analysed. Meanwhile, by applying continua FLAC-3D numerical simulation, this research simulated changes in strain on proposed prevention control methods dynamic disasters. The results show that: (1) thinner larger tensile based analysis using theoretical model....
This study investigated 324 groundwater samples collected from the southwest plain of Shandong Province during dry and wet seasons. Groundwater fluoride in area influencing factors were characterized discussed using statistical analysis, ion ratios, Piper diagrams, saturation index (SI) ArcGIS software. In addition, risk posed by to human health was assessed. The results showed that had elevated concentrations, with average season concentrations 1.15 mg·L−1 1.08 mg·L−1, respectively....
In this paper, we performed uniaxial compression tests on fine sandstone–coal, coarse and oil shale–coal bi-material samples to investigate the lithology effects their strength, macro-failure initiation (MFI), energy evolution, failure characteristics, respectively. Uniaxial stress–strain characteristics of primarily depended coal were affected by coal–rock interactions. These interactions involved following aspects: (1) The differences in mechanical properties rock stress states near...
Abstract The occurrence of disasters in deep mining engineering has been confirmed to be closely related the external dynamic disturbances and geological discontinuities. Thus, a combined finite-element method was employed simulate failure process an underground cavern, which provided insights into mechanism hard rock affected by factors such as stress-wave amplitudes, disturbance direction, dip angles structural plane. crack-propagation process, stress-field distribution, displacement,...
Geological dynamic hazards during coal mining can be caused by the structural instability of a composite system roof rock and layers, joints in play vital role this instability. In paper, uniaxial compression simulation tests on rock–coal combined bodies with single joint at different angles were conducted using PFC2D software. particular, effects angle compressive strength (UCS), acoustic emission (AE) failure characteristics body analysed. The results show following. (1) causes decrease...
Abstract Hard rock failure and rockburst hazards under high in situ stresses have been the subject of deep mechanics engineering. Previous investigations employed cubic specimens with a central hole for simulation fracturing around tunnels at laboratory scale, while characteristics crack evolution behavior different shapes holes induced by excavation unloading response barely considered. A commercially combined finite‐discrete element method (combined FEM/DEM) was used to investigate...
This paper presents a new numerical modeling procedure and design principle for longwall pillar with the assistance of simulation FLAC3D. A coal mine located in Yanzhou city, Shandong Province, China, was selected this case study. meticulously validated model developed to investigate stress changes across various sizes. In order improve reliability modeling, calibration is undertaken match Salamon Munro strength formula pillar, while similar used estimate stress–strain response gob. The...
Abstract Bolt is an important connection in underground construction and monitoring its stress characteristics essential to evaluate the effectiveness of bolt. The strain information collected along a rock bolt reveals long‐term movement mass, which greatly helps toward disaster prevention risk warning. Grooving on surface embedding optical fiber one main methods for anchorage performance distribution around engineering. In this study, Pulse Pre‐Pumped Brillouin Optical Time Domain Analysis...