A5013237537- Geomechanics and Mining Engineering
- Rock Mechanics and Modeling
- Geotechnical and Geomechanical Engineering
- Coal Properties and Utilization
- Thermochemical Biomass Conversion Processes
- Civil and Geotechnical Engineering Research
- Geoscience and Mining Technology
- Hydraulic Fracturing and Reservoir Analysis
- Combustion and Detonation Processes
- Drilling and Well Engineering
- Landslides and related hazards
- Geotechnical Engineering and Underground Structures
Longdong University
2024-2025
Xi'an University of Science and Technology
2024
To study the effect and mechanism of coal-rock underground impact pressure prevention control under influence upper protective layer mining. In this paper, research is carried out based on four factors, namely, mining stress environment, mechanical strength coal rock, dynamic load disturbance mining, energy loss space rock. Theoretical calculation analysis, rock mechanics test, physical similar simulation test on-site industrial experiments are adopted to distribution below layer, overlying...
ABSTRACT Conventional triaxial compression tests were conducted on shale specimens under varying initial prestress conditions to investigate their mechanical properties and energy evolution characteristics, thereby revealing the damage mechanism. The results demonstrate that peak differential stress of samples increases with rising prestress, following an exponential function. Based maximum minimum principal data Mohr‐Coulomb criterion, cohesive force internal friction angle tested...
Quantitative determination of the critical size inclined coal pillar in old goaf water affected area is great significance for damage prevention and safe mining. The waterproof derived by using theoretical analysis, numerical calculation field engineering practice stability 1303 working face Dananhu I mine Xinjiang region. Firstly, a force model was established to reveal law that increases with increase seam inclination under action asymmetric load. Then, simulation applied dynamic evolution...
Quantitative determination of the critical size an inclined coal pillar in old goaf water-affected area is great significance for water damage prevention and safe mining. The waterproof derived by using mechanical analyses, numerical calculations, field engineering practices to determine stability 1303 working face Dananhu No. 1 Mine Xinjiang region. Firstly, a force model was established reveal law that increases with increase seam inclination under action asymmetric load. Then, simulation...
Performing stability studies of waterproof coal pillars is one the key measures for preventing mine water disasters. As some areas pillar were affected by goaf in Nanhu Second Mine, and surrounding roadway somewhat deformed. To investigate whether can ensure safe production mine, source direction infiltration analyzed using exploration holes, it was concluded that originated from V3 aquifer static. Thus, a theoretical analysis carried out to determine relationship between mechanical...
The development of vertical fractures in the overburden rock below after upward mining a coal seam can influence safe both this and seams above. This paper employs method physical similarity simulation to experimentally study structure fracture evolution law during No. 4 Kuangou Coal Mine. reveals that lower exhibits typical "three-zone" characteristic, with caved zone showing distinct cantilever beam-hinged structure, bending sinking is relatively intact. In experiment, no significant...