A5101695637- Rock Mechanics and Modeling
- Geomechanics and Mining Engineering
- Geotechnical and Geomechanical Engineering
- Landslides and related hazards
- Geophysical Methods and Applications
- Geoscience and Mining Technology
- Mineral Processing and Grinding
- Thermochemical Biomass Conversion Processes
- Tunneling and Rock Mechanics
- Grouting, Rheology, and Soil Mechanics
- Hydraulic Fracturing and Reservoir Analysis
- Seismology and Earthquake Studies
- Non-Destructive Testing Techniques
- Earthquake Detection and Analysis
- Drilling and Well Engineering
- Municipal Solid Waste Management
- Zoonotic diseases and public health
- Thermal and Kinetic Analysis
- Species Distribution and Climate Change
- Geotechnical Engineering and Analysis
- Subcritical and Supercritical Water Processes
- Metabolomics and Mass Spectrometry Studies
- Catalysis and Hydrodesulfurization Studies
- Coal Properties and Utilization
- Recycling and utilization of industrial and municipal waste in materials production
Shandong University of Science and Technology
2015-2025
Shihezi University
2024
China University of Mining and Technology
2019-2020
Ministry of Science
2018-2020
South China University of Technology
2015
Key Laboratory of Guangdong Province
2015
To explore the influence of coal thickness on mechanical behavior and failure characteristics rock-coal-rock (RCR) mass, experimental investigation uniaxial compressive tests was conducted first then a systematic numerical simulation by particle flow code (PFC2D) performed to deeply analyze RCR specimens with different thicknesses in conventional compression tests. The overall elastic modulus peak stress lie between rock coal. Inter-particle properties were calibrated match physical sample...
Abstract Layered rocks exhibit notable transverse isotropy and have a significant impact on the deformation failure characteristics of underground structures. To large extent, mechanical properties layered are related to structure stress state their bedding planes. obtain an in‐depth understanding yield rocks, model for incorporating planes weakness volumetric is proposed by improving strain‐hardening/softening ubiquitous‐joint based continuum mechanics methods. In this model, elastoplastic...
This study considered longwall working face No. 41101—located in a steeply inclined coal seam at the Awuzisu mine Xinjiang, China—as an example which macroscopic shear cracks had occurred cement-based filling body of gob-side entry retention structure. A mechanical model support structure for was first established. Then, field observations and laboratory tests were used to obtain force exerted by wall on main roof, relationship between axial bearing capacity compression ratio rubble inside...
In order to research the influence of homogeneity on rockburst tendency and AE characteristics coal-rock combination body, uniaxial compressive tests inhomogeneous bodies obeyed by Weibull distribution were simulated using particle flow code (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mi mathvariant="normal">P</mml:mi><mml:mi mathvariant="normal">F</mml:mi><mml:msup><mml:mrow><mml:mi mathvariant="normal">C</mml:mi></mml:mrow><mml:mrow><mml:mn...
Although tectonic areas with facies change (i.e., variation of coal seam thickness, dip angle, or quality) are one the three major geological structures that induce rock bursts, case studies bursts in these rare. The main objective this study is to illustrate issue and provide may inspire future research. Based on several typical cases induced by change, conditions conducive for introduced investigated detail. Subsequently, numerical simulation performed, showing stress concentration exists...
The time-dependent deformation control of weakly cemented soft rock in deep underground engineering is a critical scientific issue that directly affects the long-term stability roadways. Traditional Nishihsara models encounter limitations accurately capturing weakening effects material parameters during creep failure and describing accelerated stage, making them insufficient for analyzing mechanisms surrounding rock. To address these limitations, this study integrates SEM X-ray scanning...
In nature, many brittle materials contain natural defects such as microcracks or joints, for example, rocks. Under water-saturated conditions, the strength of defective undergoes varying degrees attenuation, leading to material failure and even structural instability in engineering contexts. Moreover, deformation are essentially result accumulation dissipation energy. Studying energy evolution under load is more conducive reflecting intrinsic characteristics changes overall external loading....
Abstract The Gaojialiang Coal Mine in Inner Mongolia China was used as an example to investigate the process of chain pillar and gateroad failure lower coal seam under effect irregular residual upper close‐distance seam. results indicated that after longwall face retreated through area large seam, bearing decreased roof pressure continuously concentrated elastic core pillar. Isolated triangular slab rock formed above pillar, weight overlying strata transferred downward rock. When destroyed...
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During the mining of shallow‐buried and close‐distance multiple coal seam, rheological failure surrounding weakly cemented soft rock roadway in lower seam under concentrated stress is very rare. However, on roof upper transmitted down through residual pillar, resulting this situation. Taking Gaojialiang mine which located areas western China as research object, mechanism pillar studied combination with field monitoring numerical simulation. Furthermore, suggestions support such geological...
Sophora alopecuroides L., a perennial herb in the arid and semi-arid regions of northwest China, has ecological functions windbreaking sand fixation high medicinal value. In recent years, global warming human activities have led to changes suitable habitats for S. alopecuroides, which may affect accumulation natural products. this study, MaxEnt 3.4 ArcGIS 10.4 software were used predict distribution potentially China under climate change. Furthermore, geographical as affected by activities,...