1. Introduction

Dejian Li, Professor, PhD Supervisor, a council member of the Soft Rock Engineering and Disaster Control Division of the Chinese Society for Rock Mechanics and Engineering. He has led one National Natural Science Foundation of China (NSFC) General Project and participated as a key member in six major projects funded by NSFC, National Basic Research Program of China (973 Program), and the National Key Research and Development Program. As a project leader and technical director, he has conducted over 20 research projects in collaboration with institutions such as Tsinghua University, Beijing University of Science and Technology, the Chinese Academy of Sciences, and the Chinese Academy of Geological Sciences. He has received one Special Prize and one First Prize for Science and Technology from provincial and ministerial-level awards (National Administration of Work Safety, Ministry of Education, and the Chinese Society for Rock Mechanics and Engineering), and three Second Prizes. He has published over 60 papers, with more than 40 indexed by SCI, EI, and ISTP. He holds one US patent, one Hong Kong patent, and 13 Chinese invention patents, along with one national software copyright. He has authored one monograph and one textbook.

E-mail address: lidj@cumtb.edu.cn

2. Education Background and Experience

B.E. in Mining Engineering, Fuxin Mining Institute (now Liaoning Technical University), September 1981 - July 1987

M.E. in Mining Engineering Mechanics, Northeastern Institute of Technology (now Northeastern University), September 1987 - January 1990

Ph.D. in Civil Engineering, Hokkaido University, Japan, October 2000 - September 2003

3. Research Area

Geotechnical Engineering Experiments

Numerical Simulation of Geotechnical Material Failure Processes

Mechanisms and Control of Deep Geotechnical Engineering Disaster4. Academic Achievement

Representative works

1. Li Dejian, Qi Hao, Zhang Mingyuan et al. A Modeling Method for Elastic-Viscous-Plastic Material with Fractal Structure and its Solution," Acta Mechanica Sinica, 2024, 40, 423263. (SCI indexed, First Author)

[2] Li Dejian, Qi Hao, Li Chunxiao, Li Changqi. Investigating the effect of initial cracks on the mudstone mechanical behavior under uniaxial compression using FDEM. Acta Mechanica Sinica, 2023, 39: 422421. (SCI indexed, First Author)

[3] Li Dejian, Liu Xiaolin, Li Chunxiao, Ding Tao. Modeling creep recovery behavior of rock materials based on Caputo variable-order fractional derivative. Mechanics of Time-Dependent Materials, 2023, 27: 307-319. (SCI indexed, First Author)

[4]. Li Dejian, Han Chao, Liu Xiaolin, Zhang Jing. Investigation of mechanical and energy evolution characteristics for sandstone after high temperature damage under cyclic loading. AIP Advances, 2021, 11(9): 095317. (SCI indexed, First Author)

[5]. Li Dejian, Wang Guilian, Han Liqiang, Liu Peiyu, He Manchao, Yang Guoxing, Tai Qimin, Chen Cheng. Analysis of microscopic pore structures of rocks before and after water absorption. Mining Science and Technology, 2011, 21(2): 287-293. (EI indexed, First Author)

[6]. Liu Xiaolin, Li Dejian*, Li Chunxiao. "Laboratory Testing and Modeling of Creep Deformation for Sandstone Including Initial Temperature Damage," Rock Mechanics and Rock Engineering, 2023, 56, 2479-2495. (SCI indexed, Corresponding Author)

[7] Li Chunxiao, Li Dejian*, Liu Xiaolin. Experimental Study on the Influence of Intermediate Principal Stress on Failure Characteristics of Strain Rock Burst for Granite, Bulletin of Engineering Geology and the Environment, 2023, 82, 340. (SCI indexed, Corresponding Author)

[8] Liu Xiaolin, Li Dejian*, Han Chao, Shao Yiming. A Caputo variable-order fractional damage creep model for sandstone considering effect of relaxation time. Acta Geotechnica, 2021, 17(1): 153-167. (SCI indexed, Corresponding Author)

[9] Liu Xiaolin, Li Dejian*. A link between variable-order fractional Zener model and non-Newtonian time-varying viscosity for viscoelastic material: relaxation time. Acta Mechanic, 2021, 232, 1-13. (SCI indexed, Corresponding Author)

[10] Liu Xiaolin, Li Dejian*, Han Chao. Nonlinear damage creep model based on fractional theory for rock materials. Mechanics of time-dependent material, 2020, 25(3): 341-352. (SCI indexed, Corresponding Author)

[11] Li Dejian, Rao Yuanhao, Zhang Mingyuan, Yang Ke, Zhang Jing. "A Non-Stationary Parameter Rheological Model for Rock Creep Test and its Computer Simulation," Journal of Basic and Engineering Science, 2022, 30(6), 1522-1533. (EI indexed, First Author)

[12] Li Dejian, Liu Xiaolin, Han Chao. A Variable-Order Fractional Damage Creep Model Based on Equivalent Viscoelasticity, Rock and Soil Mechanics, 2020, 41(12), 3831-3839. (EI indexed, First Author)

[13] Li Dejian, Guan Lei, Han Liqiang, Miao Chengyu. Analysis of Microscopic Crack Characteristics in Basalt from Baijiao Coal Mine, Journal of China Coal Society, 2014, 39(2), 307-314. (EI indexed, First Author)

[14] Li Dejian, Jia Xuena, Miao Jinli, He Manchao, Li Dandan. Fractal Characteristics of Granite Fragments in Rock Burst Test, Chinese Journal of Rock Mechanics and Engineering, 2010, 29(S1), 3280-3289. (EI indexed, First Author)

[15] Li Chunxiao, Li Dejian*, Liu Xiaolin, Qi Hao, Wang Dechen. "Effect of Unloading Rate on Strain Rock Burst and Fragment Morphology of Granite," Journal of Central South University (Science and Technology), 2023, 54(06), 2298-2311. (EI indexed, Corresponding Author)

national patents

1. Li Dejian, Huo Junhao, Zhang Mingyuan, Li Peixing, Du Ruixue, Method, Solving Method, Device, and Storage Medium for Constructing a Viscoelastic Element Model, Chinese Invention Patent ZL 202310888776.0.

2. Li Dejian, Li Chunxiao, Li Changqi, Wan Rui, Huo Junhao, Rockburst Prediction and Forecasting Method and Device Based on Acoustic Emission Time-varying Multifractal Spectrum, Chinese Invention Patent ZL202211071006.9.

3. Li Dejian, Li Chunxiao, Qi Hao, Xing Huaxin, Method for Correcting Rockburst Fragment Kinetic Energy Testing Errors, Chinese Invention Patent ZL202110456438.0.

4. Li Dejian, Rao Yuanhao, Liu Xiaolin, Ding Tao, Method for Constructing and Solving Fractal Constitutive Models for Viscoelastic Materials, Chinese Invention Patent ZL202110628530.0.

5. Li Dejian, Qi Hao, Li Chunxiao, Han Chao, "Method, Device, and Electronic Equipment for Simulating the Failure Process of Rockburst Test Specimens", Chinese Invention Patent ZL202110433048.1.

6. Li Dejian, Zhang Mingyuan, Shen Muao, Chen Lu, Li Yingjun, Ultrafast Digital Speckle System and Experimental Method Based on Pulse Laser, Chinese Invention Patent ZL202110669575.2.

7. He Manchao, Li Dejian, Sun Xiaoming, Guo Zhibiao, Experimental Method for Deep Rockburst Process Model, Chinese Invention Patent ZL200710099297.1.

8. He Manchao, Liu Dongqiao, Li Dejian, Li Jieyu, Ren Fuqiang, High-pressure Servo True Triaxial Rockburst Experimental Equipment, Chinese Invention Patent ZL201910519675.X.

9. He Manchao, Zhang Haijiang, Li Dejian, Method and Device for Testing Gas Migration Process in Coal-rock Mass, Chinese Invention Patent ZL200910088810.6.

10. He Manchao, Wang Chunguang, Zhang Haijiang, Li Dejian, System and Method for Testing Gas Migration Process in Coal-rock Mass, US Invention Patent US8418526 B2.

11. He Manchao, Yang Xiaojie, Sun Xiaoming, Zhang Bin, Li Dejian, Tao Zhigang, "Early Warning and Prediction Method and System for Earthquake Disasters", Hong Kong Invention Patent HK1149834.

12. Li Dejian, Rao Yuanhao"Simulation Software for Viscoelastic Response of Rock Materials V1.0", China Software Copyright 2022SR0367515, December 2022.

Projects

1. National Natural Science Foundation General Project, 41572334, "Study on the Mechanism of Crack Propagation and Energy Conversion in Rockburst Experiments", January 2016 - December 2019, 640,000 RMB, Principal Investigator.

2. National Basic Research Program (973 Program), 2010CB226800, "Basic Research on the Mechanism and Prevention of Dynamic Disasters in Deep Coal Mining", January 2010 - August 2014, 290,000 RMB, Key Member.

3. National Basic Research Program (973 Program), 2006CB202200, "Basic Research on the Laws of Deep Coal Resource Occurrence, Mining Geological Conditions, and Fine Detection", October 2006 - October 2009, 97,470 RMB, Key Member.

4. Ministry of Education Innovation Team Development Plan Project, IRT0656, "Disaster Control in Deep Coal Mine Mining Engineering", January 2007 - December 2009, 53,700 RMB, Participant.

5. Cooperation Project with the Institute of Geomechanics, Chinese Academy of Geological Sciences, "Rockburst Experiment Research", June 2008 - August 2008, 70,000 RMB, Principal Investigator.

6. Cooperation Project with Tsinghua University, "Jinping Level 1 Marble Rockburst Experiment", March 2009 - August 2009, 90,000 RMB, Principal Investigator.

7. Cooperation Project with Beijing Institute of Geological Sciences, "Study on the Characteristics of Unloading Rockburst Damage in North Mountain Granite, Gansu Province", December 2010 - August 2012, 468,400 RMB, Principal Investigator.

5. Awards and Honors

1. "Simulation Experimental System and Method for Deep Rockburst Processes", Special Prize of the Science and Technology Award by the Chinese Society for Rock Mechanics and Engineering, October 2023, 4/6.

2. "Development and Application of Five-Connection Rheological Experimental Equipment for Deep Soft Rock", Second Prize of the Science and Technology Award by the Chinese Society for Rock Mechanics and Engineering, October 2021, 4/6.

4. "Multi-physical Field Coupling Mechanism and Testing Methods Based on Coalbed Methane Development", Second Prize of the Safety Production Science and Technology Achievement Award, December 2014, 5/10.