Changqing Zheng

ORCID: 0000-0003-1037-3639
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About
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Research Areas
  • Metal Forming Simulation Techniques
  • Rock Mechanics and Modeling
  • Aluminum Alloys Composites Properties
  • Fatigue and fracture mechanics
  • Landslides and related hazards
  • Hydrogen embrittlement and corrosion behaviors in metals
  • Aluminum Alloy Microstructure Properties
  • Underground infrastructure and sustainability
  • Climate change and permafrost
  • High Temperature Alloys and Creep
  • Earthquake and Tsunami Effects
  • High-Velocity Impact and Material Behavior
  • Grouting, Rheology, and Soil Mechanics
  • Microstructure and mechanical properties
  • Soil Moisture and Remote Sensing
  • Bauxite Residue and Utilization
  • Geotechnical and Geomechanical Engineering
  • Soil, Finite Element Methods
  • Geotechnical Engineering and Underground Structures
  • Geotechnical Engineering and Analysis
  • Microstructure and Mechanical Properties of Steels
  • Metallurgy and Material Forming

China Railway Eryuan Engineering Group Co.
2020

China Railway Group (China)
2020

National Research Council Canada
2010

Northwestern Polytechnical University
1990-1997

A study was conducted to assess the performance and castability of a new AA6061 aluminum alloy variant specially designed for semi-solid pressure die casting.The has very desirable mechanical properties fabrication automotive parts.However, it limited due its low silicon content.It is not well suited shape casting processes which are, their part, interesting in terms production costs complex-shaped components.In an effort meet industry requirements, variants have been developed by Rio Tinto...

10.4271/2010-01-0225 article EN SAE technical papers on CD-ROM/SAE technical paper series 2010-04-12

As the shield section passes through silt‐rock strata, rock stratum of tunnel has to be blasted into blocks in advance, and diameter should less than 30 cm after breaking, then, could smoothly enter soil cabin opening boring machine (TBM) cutter head finally discharged screw machine. The geology blasting strata is complex, vibrations caused by threaten safety buildings around area. According measured data at sites, waveform duration vibration acceleration distribution characteristics...

10.1155/2021/3318965 article EN cc-by Shock and Vibration 2021-01-01

Abstract Red bed soft rock exhibits poor physical and mechanical properties certain creep characteristics, which cause continuous deformation of tunnels underground engineering structures during operation. The mass at the bottom a railway tunnel in Sichuan Province is mudstone Penglaizhen Formation Upper Jurassic. It has thin to medium-thick layered structure. Moreover, formation nearly horizontal. In this paper, shear test deep learning are employed study characteristics gentle dip red...

10.1088/1755-1315/570/5/052064 article EN IOP Conference Series Earth and Environmental Science 2020-10-01

Abstract Complex geological environment and difficulties in operation maintenance of mountain tunnels result a lot damage during the period tunnels. Therefore, risk assessment reinforcement technologies for complex need to be developed improved. As result, this paper, research on safety influence factors their weights was conducted based Fuzzy Comprehensive Evaluation (FCE) Analytic Hierarchy Process (AHP), fuzzy set influencing established, membership functions at index level were...

10.1088/1757-899x/741/1/012031 article EN IOP Conference Series Materials Science and Engineering 2020-01-01

The geological effects of rock blasting in silt-rock strata are complex, and the vibrations caused by threaten safety inhabitable areas. Based on measured data for at site dynamic finite element simulations, propagation characteristics were studied. surface, vertical vibration velocities from surface to tunnel, attenuation along tunnel’s axis analyzed. results this study as followings: direction axis, peak particle (PPVs) decreases with increasing horizontal distance explosion source....

10.21595/mme.2022.22691 article EN Mathematical Models in Engineering 2022-05-18

10.1016/0167-8442(92)90042-v article EN Theoretical and Applied Fracture Mechanics 1992-04-01
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