Junfeng Qian

ORCID: 0000-0002-7110-4152
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About
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Research Areas
  • Geotechnical Engineering and Analysis
  • Grouting, Rheology, and Soil Mechanics
  • Rock Mechanics and Modeling
  • Geotechnical Engineering and Soil Mechanics
  • Geotechnical Engineering and Soil Stabilization
  • Geotechnical Engineering and Underground Structures
  • Concrete and Cement Materials Research
  • Innovative concrete reinforcement materials
  • Asphalt Pavement Performance Evaluation
  • Soil and Unsaturated Flow
  • Landslides and related hazards
  • Microbial Applications in Construction Materials
  • Granular flow and fluidized beds
  • Recycled Aggregate Concrete Performance
  • Electrocatalysts for Energy Conversion
  • Soil, Finite Element Methods
  • Geotechnical and construction materials studies
  • Corrosion Behavior and Inhibition
  • Fuel Cells and Related Materials
  • Climate change and permafrost
  • Remote Sensing and Land Use
  • Infrastructure Maintenance and Monitoring

Monash University
2021-2024

Changzhou University
2024

Wuhan University
2024

Central South University of Forestry and Technology
2019-2021

Central South University
2019-2021

The physical composition and stress state of soil-rock mixture (SRM) materials have a crucial influence on their mechanical properties, play vital role in improving the performance subgrade. To reveal resilient behavior mesostructure evolution SRM materials, triaxial tests discrete element method (DEM) numerical analysis been carried out. In test section, response was investigated by preparing samples under different states conducting samples. Simultaneously, new irregular particle modeling...

10.3390/ma13071658 article EN Materials 2020-04-03

In the laboratory, there are significant differences in mechanical properties of asphalt mixtures with same size gradation and binder, which is not conducive to evaluating designing pavement structure accurately. Meanwhile, influence aggregate segregation height on unclear. This study developed a new method generate three-dimensional (3D) model real composition shape characterize during Superpave gyratory compaction (SGC). The graphic index (GPSI) employed assess mixing degree coarse mortar...

10.1061/(asce)mt.1943-5533.0004604 article EN Journal of Materials in Civil Engineering 2022-12-21

The soil water characteristic curve and microstructure evolution of unsaturated expansive improved by microorganisms in Nanning, Guangxi were studied means filter paper method scanning electron microscope imaging (SEM). Based on Fredlung & Xing model, the influence law different cement content is proved. According to analysis SEM test results, mechanism MICP engineering characteristics revealed. results show that with increase content, saturated residual gradually increased. At same...

10.3390/app12010342 article EN cc-by Applied Sciences 2021-12-30

Most of the research studies on improvement expansive soils are focused reducing their properties; however, there few impact soil compressibility after improvement. In this paper, through indoor high‐pressure consolidation tests, recent microbial‐induced calcium carbonate precipitation (MICP) technology is studied to improve compression characteristics soil. The significant effect different microbial concentrations (achieved by number treatments) deformation revealed with hyperbolic function...

10.1155/2021/8818771 article EN cc-by Advances in Civil Engineering 2021-01-01

The soil‐water characteristic curve of silty soil in seasonal frozen area during freezing‐thawing process was studied this study. By means a laboratory test, specimens with different compaction degrees and initial moisture content were prepared put into the temperature change testing machine for freeze‐thaw action. influence times action on SWCC low liquid limit silt analyzed, V‐G model used to fit test data, set fitting parameters reference value obtained. At same time, microstructure...

10.1155/2020/8823666 article EN cc-by Advances in Civil Engineering 2020-01-01

The resilient modulus of subgrade is a design parameter the pavement structure, which significantly affected by overlying load and traffic load. It important to calculate equivalent top surface based on nonuniform distribution in subgrade. This paper takes fully weathered granite soil as research object. Firstly, density different layers structure calculated degree compaction layers. Secondly, each point determined quality Thirdly, subprogram finite element software compiled redeveloped...

10.1155/2019/6809510 article EN cc-by Advances in Civil Engineering 2019-01-01

Using recycled aggregate from construction and demolition (C&D) wastes as a material is potential method for solving the disposal of C&D wastes, which can reduce exploitation natural aggregate. In this study, extensive laboratory tests were carried out to investigate reliability used road base material. Meanwhile, gradation design dominant size range considered, physical was proposed enhance structural performance by replacing skeleton (RA) with high‐quality limestone. The test...

10.1155/2020/8827715 article EN cc-by Advances in Civil Engineering 2020-01-01

A thermodynamically consistent three-dimensional (3D) continuum breakage model was developed to study the effect of intermediate principal stress. Such an has been long overlooked in most existing constitutive models, which might result a considerable difference strength estimation crushable granular materials. Following basic thermodynamic laws, proposed 3D based on new explicit mathematical expression original Matsuoka–Nakai failure criterion and stress transformation. This verified...

10.1061/ijgnai.gmeng-8622 article EN International Journal of Geomechanics 2023-08-24
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