A5008311730- Rock Mechanics and Modeling
- Tunneling and Rock Mechanics
- Drilling and Well Engineering
- Geotechnical Engineering and Underground Structures
- Landslides and related hazards
- Grouting, Rheology, and Soil Mechanics
- Geotechnical and Geomechanical Engineering
- Geophysical Methods and Applications
- Geomechanics and Mining Engineering
- High Entropy Alloys Studies
- Welding Techniques and Residual Stresses
- High-Temperature Coating Behaviors
- Geotechnical Engineering and Analysis
- Innovative concrete reinforcement materials
- Advanced materials and composites
- Concrete and Cement Materials Research
- Seismic Imaging and Inversion Techniques
- Aerodynamics and Fluid Dynamics Research
- Metal Forming Simulation Techniques
- Soil and Unsaturated Flow
- Additive Manufacturing Materials and Processes
- Advanced Welding Techniques Analysis
- High-Velocity Impact and Material Behavior
- Landfill Environmental Impact Studies
- Aeroelasticity and Vibration Control
Institute of Rock and Soil Mechanics
2015-2024
University of Chinese Academy of Sciences
2017-2022
China University of Mining and Technology
2021
Huazhong University of Science and Technology
2020
Liaoning Technical University
2018-2019
Shanghai University of Engineering Science
2018
Chinese Academy of Sciences
2014
Xi'an Jiaotong University
2013
Due to the large differences in physico-mechanical properties of composite strata, jamming, head sinking and other serious consequences occur frequently during tunnel boring machine (TBM) excavation. To analyse stability surrounding rocks strata under disturbance TBM excavation, a geomechanical model test was carried out based on Lanzhou water supply project. The evolution patterns distribution characteristics strain, stress, deformation fracturing were analysed. results showed that...
Abstract Double‐wheel trench cutters display reduced efficiency while cutting through hard or extremely rock strata, leading to significant wear on their picks. A high‐pressure water jet‐pick combined rock‐breaking method (HPC) for double‐wheel is proposed, addressing the challenges of low and high pick when strata. The HPC mode integrates jets precut grooves both sides picks, creating free surfaces that facilitate fragmentation. Experiments were conducted with combination jet linear under...
The acoustic emission (AE) characteristics of the damage evolution surrounding rock during tunnel-boring machine (TBM) excavation were studied using AE monitoring and ultrasonic testing. results indicated that distribution signals in obtained by reasonable arrangement positions probes multi-parameter filtering method TBM excavation. For engineering I, at different degrees along direction advancement was observed within 5 m ahead tunnel face excavation, while most severe appeared 1 face....
AlCrFeNiSi system porous high-entropy alloy material is manufactured by laser ignition and self-propagating sintering of natural chromite powder, which provides the idea breaking traditional synthesis procedure compound material. The raw powder obtained ball milling compacted into cylindrical compacts, reaction comes from caused on surface composite chrome iron synthesized sintering, as well. prepared Al, Cr, Fe, Ni Si elements with similar effective components powder. selected energy-saving...
The mechanical properties of hard and brittle marble have three typical characteristics: (1) elastoplastic coupling, (2) strain hardening softening (3) shear dilatancy. To accurately describe the deformation failure characteristics marble, this paper developed an coupling model based on cyclic loading tests. proposed includes following characteristics. First, elastic modulus was quantitatively related to both first stress invariant a specially defined internal variable. Second, evolution...
Abstract Free surface-assisted TBM disc cutter for rock breaking is an important direction the optimizing of structure. To study influence free surface on excavation, surfaces limited-width opening and unlimited-width were presented, six different combinations proposed. The penetration tests sandstone with carried out. results showed that mass adjacent to fell off after sample fracture. caused close broke. Under combinations, auxiliary effect was not obvious when depth shallow, failure...