A5038288662- Rock Mechanics and Modeling
- High-Velocity Impact and Material Behavior
- Dam Engineering and Safety
- Structural Response to Dynamic Loads
- Landslides and related hazards
- Civil and Geotechnical Engineering Research
- Fluid Dynamics Simulations and Interactions
- Mineral Processing and Grinding
- Hydraulic Fracturing and Reservoir Analysis
- Soil, Finite Element Methods
- Simulation and Modeling Applications
- Geophysical Methods and Applications
Beijing University of Technology
2020-2022
Beijing University of Civil Engineering and Architecture
2020-2022
Jiangxi University of Science and Technology
2018
By utilizing the improved split Hopkinson pressure bar (SHPB) test device, uniaxial, constant-speed cyclic, and variable-speed cyclic impact compression tests were conducted on weakly weathered granite samples. combining nuclear magnetic resonance (NMR) triaxial seepage tests, this study investigated change laws in mechanical properties, porosity evolution, permeability coefficients of samples under impacts. The results showed that impacts with increasing times, deformation modulus...
Nuclear magnetic resonance (NMR) and damage impact testing, using a split Hopkinson pressure bar (SHPB) technique, were conducted on weakly weathered granites of different porosities. Based this, this study determined analysed the pore structure distribution, propagation characteristics stress waves, changes in initial tangent modulus, energy dissipation The research demonstrated that nature internal porosity changed with total porosity. Pore significantly influenced amplitude reflected...
Abstract To study the influence of axial and radial uncoupling coefficient on blasting effect when air water are used as spacer in surrounding holes tunnel seal blasting, optimal charge is determined for construction. Combined with numerical simulation field test, research results show that: (1) When interval medium peripheral hole multi-hole value range 2.2∼2.5. The 1.5∼1.6. (2) concept composite proposed, decoupling determined. Finally, 2.2 1.6, which can meet requirements. (3) verified by...