A5000224277- Fluid Dynamics Simulations and Interactions
- Landslides and related hazards
- Rock Mechanics and Modeling
- Geotechnical Engineering and Underground Structures
- Dam Engineering and Safety
- Grouting, Rheology, and Soil Mechanics
- Geotechnical Engineering and Analysis
- Numerical methods in engineering
- Soil and Unsaturated Flow
- Geotechnical Engineering and Soil Stabilization
- Innovative concrete reinforcement materials
- Concrete and Cement Materials Research
- Seismic Imaging and Inversion Techniques
- Geotechnical Engineering and Soil Mechanics
- Seismic Waves and Analysis
- Thermoelastic and Magnetoelastic Phenomena
- Hydrology and Sediment Transport Processes
- Concrete Properties and Behavior
- Geophysical Methods and Applications
- Polymer Foaming and Composites
- Geomechanics and Mining Engineering
- Phase Equilibria and Thermodynamics
- Composite Structure Analysis and Optimization
- Geotechnical and Geomechanical Engineering
- Advanced ceramic materials synthesis
Tongji University
2006-2024
KTH Royal Institute of Technology
2024
Central South University
2020-2023
Kunming Institute of Precious Metals
2021
Hunan Nonferrous Metal Research Institute
2020
East China University of Science and Technology
2020
This paper concentrates on the sensitivity and dynamic simulation of randomly distributed karst cave groups tunnel stability connectivity extended ratio based water–rock interaction using a novel contact method (CDM). The concept group during tunneling water inrush is proposed. effects shape spatial distribution Qiyueshan are investigated. Tunnel deformation damage index, with uniform random evaluated. results demonstrate that verified as crucial judgment in predicting safe distance...
Understanding the cracking process of layered tunnels requires a high-fidelity method. Improved smooth particle hydrodynamics (SPH), termed kernel broken SPH (KBSPH), was implemented to simulate crack propagation and deformation rock cells field with dip angles 0°–90°, results were compared those laboratory tests. Three attempts, including bedding angle, interlayer distance, lateral pressure coefficient, made investigate tunnels. Finally, pros cons KBSPH method applied in other methods. The...
Compared with extrusion foaming, semi-solid-state batch foaming CO2 can produce foams small bubble size and high expansion ratio using the polymers regular melt strength as raw material. However, due to presence of crystal regions, polypropylene (PP) is a challenge. In situ melting rheological behaviors PP were measured high-pressure differential scanning calorimetry rheometer, respectively. Through pressure swing saturation strategy, matrix dissolve more in shorter time, thereby effectively...
A discontinuous smoothed particle hydrodynamics (DSPH) method considering block contacts is originally developed to model the cracking, frictional slip and large deformation in rock masses, verified by theoretical, numerical and/or experimental results. In DSPH method, cracking realized breaking virtual bonds via a pseudo-spring based on Mohr–Coulomb failure criteria. The damaged particles are instantaneously replaced contact bond between original formed simulate separation/contraction...
In the study of seepage characteristics layered rock slope under rainfall conditions, majority previous research has considered hydraulic conduction to be isotropic, or only anisotropy ratio conductivity, ignoring angle. current study, a in Pulang region was selected as an example. Then, based on fitting parameters Van Genuchten model, pore water pressure sensitivity analyses were carried out. The and angle used analyze stability slopes. results show that conductivity decreased, maximum...
Shallow buried tunnels are commonly seen in engineering practice. To understand the failure mechanism of a shallow tunnel is significance There reasonable judging index lacking stability. The strength reduction method (SRM) gained limited status geotechnical materials by reducing computation parameters. Then, zone can be obtained and shown. Finally, safety factor this progress. This has been used slope stability analysis. usage new field. Based on model under different cover depth, SRM...
The strength and hydraulic conductivity anisotropy of rock slopes have a great impact on the slope stability. This study took layered in Pulang, Southwestern China as case study. conversion equations seriously weathered mass were proposed. Then, considering ratio angle (dip bedding plane) conductivity, deformation stability characteristics calculated compared with field monitoring data. results showed that sensitivity analysis could successfully predict occurrence time, horizontal...