A5100697336- Rock Mechanics and Modeling
- Drilling and Well Engineering
- Geotechnical Engineering and Underground Structures
- Tunneling and Rock Mechanics
- Grouting, Rheology, and Soil Mechanics
- Geomechanics and Mining Engineering
- Geoscience and Mining Technology
- Hydrocarbon exploration and reservoir analysis
- Innovative concrete reinforcement materials
- Geotechnical Engineering and Analysis
- Structural Behavior of Reinforced Concrete
- Innovations in Concrete and Construction Materials
- Advanced materials and composites
- Additive Manufacturing and 3D Printing Technologies
- Geotechnical Engineering and Soil Stabilization
- CO2 Sequestration and Geologic Interactions
- Tailings Management and Properties
- Soil, Finite Element Methods
- Hydraulic Fracturing and Reservoir Analysis
- Enhanced Oil Recovery Techniques
- Numerical methods in engineering
- Particle Dynamics in Fluid Flows
- Geophysical Methods and Applications
- Erosion and Abrasive Machining
- Dielectric materials and actuators
CCCC Highway Consultants (China)
2024
Central South University
2022
Shandong University of Science and Technology
2021
Changjiang Institute of Survey, Planning, Design and Research
2020-2021
Xi'an University of Science and Technology
2021
Guilin University of Technology
2021
Wuhan University
2016-2019
Tongji University
2016
Nanjing University
2008
Weatherford College
2003
For better understanding of rock fragmentation mechanism and correlative influence factors under the cutter penetration, a set two-dimensional wedge indentation tests was conducted. Nondestructive detection techniques, including infrared thermography acoustic emission, were employed to capture damage evolution information. Combined with experimental observations, cavity expansion model (CEM) theory adopted interpret temperature rise differences for different zones, sizes these zones...
Abstract This paper presents an experimental study in which molded gypsum pre-cracked specimens with two types of flaw (single and X-shaped cross flaws) were tested under biaxial compression. Results show that acoustic emission (AE) energy rate curves can be divided into three different periods during uniaxial compression, correspond to crack closure, linear elastic unstable failure stages specimens. However, only are observed deformation failure. Furthermore, proposed AE parameters, namely...
In this paper, the stability of large-size graded crushed stone used for road base or cushioning under repeated load is investigated. Using an in-house developed device, mix was compacted and molded by vibration rotary compaction method. Cyclic rotating axial compression applied, shakedown theory to study cumulative deformation specimens. The effects gradation parameters on strain behavior were analyzed, critical failure loads determined according theory. test results indicate that there are...
Earthquake-induced poundings have been identified as a critical factor influencing bridge seismic behavior. However, most previous studies on this topic did not consider link-slabs in the continuous deck, which would influence pounding occurrence and thus subsequent response. This paper uses probabilistic method to evaluate vulnerability of simply-supported considering link-slabs. The damage states girder ends due are proposed according cumulative damage. To analyze whole bridge, both joint...
Rock has the characteristics of natural heterogeneity and discontinuity. Its failure phenomenon induced by external force involves complex processes, including microcrack initiation, propagation, coalescence, macrocrack formation. In this study, Weibull random distribution based on rock microstructure is introduced into combined finite-discrete element method (FDEM) to establish heterogeneous model, mechanical response damage evolution samples in uniaxial compression test are simulated. The...
To better understand the rock fragmentation mechanism and optimize cutter design selection for excavation by TBM, a set of three‐dimensional indentation tests was conducted with different types. Acoustic emission (AE) monitoring technique employed to capture information damage evolution real‐timely. It is found that penetration using constant cross section (CCS) tends induce inconspicuous chips formation before sudden occurrence macrocrack, but V‐type gradual accompanied multiple local...
This paper targets its research at the exploitation–reinjection well of geothermal fluid one heating project in Tianjin, China, examines such factors as ground temperature, CO<sub>2</sub> partial pressure and stratum lithology, simulates changes main component contents fluids mixed different proportions exploitation reinjection well. The findings show that are increasingly similar nature to reinjected water process goes on. It’s suggested manual method should be used ensure has...
Abstract In order to study the mechanical deformation response law and stability difference of surrounding rock induced by unloading effects tunnel excavation with different section types, 3D numerical tunnelling simulation was conducted. The results show that plastic zone depth value circular are smallest, its stress distribution is uniform. volume horseshoe-section slightly larger, about 10% larger than former, relatively However, gate-section 0.7-1.2m tunnel, increases 28.5%. Meanwhile,...
The stability evaluation of water resisting layer in the process coal mining is key to study law and soil loss prevent resources. development proportioning similar materials are basis by physical simulation. A new type material considering characteristics was developed through orthogonal experiments. composed river sand, bentonite, silicone oil, vaseline, water. Determine best test process. First all, proportion scheme designed based on test. Then, influence cement concentration, mass ratio...