Research Interests

1. Research on multiscale constitutive theories of soil (achieving simulation of soil particle properties within theframework of continuum media, with a focus on describing phenomena such as size effects and stress concentration in granular media)；

2. Research on the accumulation characteristics of soil particles (using methods such as drop pile tests to study issues such as the stress arching effect, changes in particle structure,and the main load-bearing micro-structures);

3. Particle-scale structural study combined with visualization methods (utilizing methods such as optical elasticity tests,with photoelastic materials, or CT scans to achieve particle tracking ingranular media, three-dimensional reconstruction of medium characteristics, and correlation of macroscopic and microscopic mechanical parameters;

4. Research on the micro mechanical seepage characteristics of saturated soil (including the seepage coefficient calculation theory combining fractal and electrochemical theories, as well as the seepage and mercury intrusion tests for low plasticity index clay, etc.).

Education and Work Experience

2017.09- 2021.12: Doctoral Degree in Geotechnical Engineering, South China University of Technology

2014.09- 2017.06: Master's Degree in Building and Civil Engineering, Guangdong University of Technology

2010.09 - 2014.06: Bachelor's Degree in Civil Engineering, Lanzhou Jiaotong University

2025.10 - Present: Research Associate Professor, School of Marine Science and Engineering, South China University of Technology

2022.01 - 2025.09: Postdoctoral Fellow, School of Civil and Transportation Engineering, South China University of Technology                   

Research grants (PI projects)

1. “The study of soil microstructure test and multi-scale constitutive theory based on CT scanning”, Guangdong Basic and Applied Research Foundation, 10/2022-09/2025; budget: 100,000.00 CNY;

2. “Stress arch effect test and multi-scale theoretical description of water disintegration process of granite residual soil”, Guangdong Basic and Applied Research Foundation, 01/2023-12/2025; budget: 100,000.00 CNY;

3. “Coagulate-imaging tests and multiscale description method study on the mesoscopic arching structure in sand piles”, National Natural Science Foundation of China,01/2024-12/2026; budget: 300,000.00 CNY.          

Representative publications

[1] Guo L F, Li X L, Ren L, Lai Y M, Chen J S, Zhao L Y*. A new multiscale Cosserat model for size effect simulation in granular media. Computers and Geotechnics, 2024, 170: 106275.

[2] Guo L F, Fang Y G*, Xu Y F, Gu RG, Bao S F, Shan Y. Saline seepage circulation experiment study on low plastic limit clays combined with microscale tests and the fractal theory. Bulletin of Engineering Geology and the Environment, 2024, 83(12): 498.

[3] Guo L F, Xu Y F*, Fang Y G. Study on permeability of clay under saline environment change and permeability prediction considering electrochemical characteristics. International Journalof Geomechanics, 2025, 25(4), 04025020.

[4] Guo L F, Li X L, Song D Q*, Chen JS*, Liu X L, Liu Y J. Cosserat constitutive theory and one of its higher-order forms: A rediscussion on the mesh dependence problem. Finite Elements in Analysis and Design, 2024, 241: 104224.

[5] Xu Y F, Guo L F*, Song D Q, ShanY, Liu X L. A multiscale generative adversarial network approach for generating porous media with morphological structures. Stochastic Environmental Research and Risk Assessment, 2025: 1-21.

[6] Li Y D, Lai Y M, Lv Z M, Wang X W, Zhou Y, Qin Z P, Guo L F*, Zhao L Y*. A refined incremental homogenization approach for heterogeneous nonlinear geomaterials without isotropization. Computers and Geotechnics, 2025, 188: 107589.

[7] Wu Y F, Chen J S, Pan W D, Guo LF*, Shan Y*. A unimodal soil-water characteristic curve model for gap-graded soil based on bimodal grain-size distribution and fractal theory. Transportation Geotechnics, 2025, 50: 101465.

[8] Fang Y G, Guo L F*, Hou M X. Arching effect analysis of granular media based on force chain visualization. Powder Technology, 2020, 363: 621-628.

[9] Fang Y G, Li X L, Guo L F*, Gu RG, Luo W Z. The experiment and analysis of the repose angle and the stress arch-caused stress dip of the sand pile. Granular Matter, 2022, 24(1): 1-12.

[10] Chen J S, Zhang B C, Guo L F*,Zhang H*, Beer M, Achmus M. Study on stress dips in granite residual soil based on experiments and DEM. Granular Matter. 2025, 27(3): 1-16.