2025 7th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2025)

Biography: Danqing Song is the Deputy Director of the Office of Development Strategy and Planning at the South China University of Technology (SCUT), a professor at the School of Civil Engineering and Transportation (SCUT), a recipient of the U40 Fund of Ministry of Education and Outstanding Young Scientist Fund of Guangdong Province, the key positions in four major academic organizations, and a (young) editorial board member of five authoritative SCI journals. His main research areas include (1) Dynamic disaster effects and prevention of rock slopes; (2) Intelligent construction of tunnels and underground projects; (3) Monitoring and early warning of geotechnical engineering and geological disasters. He has published 82 SCI papers (62 in JCR-Q1) and 15 EI papers as the first/corresponding author. The papers are mainly published in top journals in the fields of engineering geology and geotechnical engineering, such as Eng Geol, Tunn Undergr Sp Tech, J Rock Mech Geotech, Landslides, Comput Geotech, Acta Geotech, Rock Mech Rock Eng, etc. He has led 18 national and provincial scientific research projects, and has received more than 10 provincial and ministerial science awards as the first or second principal investigator.

Title:Disaster Mechanism and Early Warning Prevention Methods of Water-Rock Coupling Catastrophe of Rock Slopes in Meizoseismal Area

Abstract:The direct economic losses caused by landslides in our country exceed 200 billion yuan per year, seriously affecting the smooth implementation of major national strategies such as water conservancy and transportation. In response to the disaster assessment and prevention needs of complex and steep slopes in projects like the Hydropower Project in the Lower Reaches of the Yarlung Zangbo River and the Sichuan-Tibet Railway, our team has carried out corresponding scientific research. On the multi-geological disaster chain, the hydrodynamic coupling disaster-causing factors are of crucial importance. How to achieve the evaluation, monitoring, early warning, and precise prevention of hydrodynamic coupling disasters in complex rock slopes has become a major challenge in the operation and maintenance of major construction projects. Focusing on the hydrodynamic coupling disaster-causing factors of complex rock slopes, the achievements 1 have broken through the limitations of single hydraulic or dynamic factors and the gap effect of spatial scale; achievement 2 has solved the problems of multi-domain weak correlation and precise characterization of the disaster process; achievement 3 has improved the accuracy of monitoring, early warning, and the protection performance. Our team has carried out in-depth cooperation with enterprises such as the China Railway and China Construction Eighth Division, and has conducted on-site application demonstrations in major national projects such as the Sichuan-Tibet Railway.

Biography:Hongquan Song is currently a Professor and PhD Supervisor at Henan University, and serves as the Executive Deputy Director of the Henan Key Laboratory of Air Pollution Prevention and Ecological Security. He is a recipient of the Henan Provincial Outstanding Young Scientist Award, and Henan Provincial University Science and Technology Innovation Talent. His research focuses on Earth system processes and global change, with particular emphasis on the interaction mechanisms among air pollution, climate change, and ecosystems under human activities. He is committed to integrating geographic information systems (GIS), remote sensing, and Earth system models to quantify the impacts of complex environmental drivers on ecological processes at both regional and global scales. His work provides scientific evidence and technical support for environmental protection and natural resource management. He has led or participated in multiple projects funded by the National Natural Science Foundation of China. He serves as a committee member of professional committees such as Cartography and Geographic Information Systems of the Chinese Society for Geodesy, Photogrammetry and Cartography, and as an editorial board member of journals including the Journal of Geomatics Science and Technology and Geography and Environmental Sustainability. He has published over 100 peer-reviewed papers in leading international journals, with an h-index of 31. His research achievements have received several awards, including the Second Prize of the Hebei Provincial Natural Science Award.

Title:From Engineering Interventions to Earth System Feedbacks: How Human Activities Reshape Climate, Air Quality, and Water–Ecosystem Processes

Abstract:Urbanization and large-scale soil and water conservation projects, as major forms of engineering-driven human activities, have become key drivers reshaping land surface processes. However, their integrated impacts on the overall structure and functioning of the Earth system remain insufficiently understood. Under the combined influence of climate change and intensified human activities, this knowledge gap poses new challenges to the long-term safety, stability, and sustainability of civil and water engineering systems. Adopting an Earth system perspective, this presentation integrates satellite remote sensing, geographic information systems, and Earth system models to examine how engineering interventions act as dynamic external forcings that generate multi-scale coupled feedbacks among climate, air quality, and water-ecosystem systems. The results demonstrate that engineering interventions influence environmental systems not only through direct regulation of hydrological and soil processes, but also by altering energy, water, and material cycles, leading to nonlinear feedbacks that shape regional environmental evolution and ecosystem stability. Finally, this study highlights the necessity of incorporating Earth system understanding and coupled modeling approaches into the planning, design, and evaluation of civil and water engineering, in order to support the development of climate-adaptive and sustainable infrastructure.

Biography: Mengxin Liu, Provincial and Ministerial-level High-level Talent. Dr. Liu has presided over five national and provincial-level research projects, including the Excellent Youth Project of the Natural Science Foundation of Heilongjiang Province, a sub-project of the National Key Research and Development Program of China, the Young Scientists Fund of the National Natural Science Foundation of China (NSFC), and the Youth Program of the Natural Science Foundation of Jiangsu Province. Dr. Liu’s research interests primarily focus on damage and fracture mechanics, intelligent construction, multi-scale mechanical characterization and modeling, and geotechnical engineering. To date, Dr. Liu has published over 10 academic papers as the first or corresponding author (with a cumulative Impact Factor exceeding 50) and has applied for or been granted a total of six invention patents. In terms of academic service, Dr. Liu acts as an invited reviewer for top-tier civil engineering journals, including Cement and Concrete Composites, Construction and Building Materials, and the Journal of Engineering Mechanics. Dr. Liu was also recognized as an "Excellent Reviewer" by the International Journal of Damage Mechanics. Furthermore, Dr. Liu serves as a project evaluation expert for the National Natural Science Foundation of China and the Science and Technology Department of Heilongjiang Province.

Title:Multi-scale Characterization and Modeling Methods for Freeze-Thaw Damage in Concrete

Abstract:Addressing the critical issue of shotcrete freeze-thaw durability in cold regions, this presentation introduces a novel cross-scale characterization method (NI-MCT) that integrates Nanoindentation with micro-CT. This approach enables the precise quantification of micro-component damage and the evolution of the Interfacial Transition Zone (ITZ). Building upon these characterizations, multi-scale mechanical and transport models incorporating damage evolution were established. The study reveals that freeze-thaw damage significantly increases the skeleton length and connectivity of pores, identifying ITZ deterioration as the primary driver of macroscopic performance degradation. Moreover, the modeling results demonstrate that the decline in ITZ properties dominates the formation and propagation of chloride transport paths. By elucidating the cross-scale mechanisms of concrete degradation under freeze-thaw actions, this work provides a robust theoretical framework for durability design and service life prediction.

Profile: Xiaoliang Yao, Professor, Doctoral Supervisor. Recipient of the Shaanxi Provincial High-level Talent Introduction Programme. Director of the Geotechnical Engineering Research Institute, School of Civil Engineering and Architecture, Xi'an University of Technology. Mainly engaged in experimental, theoretical and applied research on the basic mechanical properties, constitutive relationships and soil-structure interaction for underground engineering of special soils. Hold/participate in 10 National Natural Science Foundation projects, hold 15 provincial and horizontal projects. Won 3 industry science and technology awards. Published over 40 papers indexed by SCI/EI, authorised 15 patents and software copyrights, and published 2 monographs. Concurrently serves as a Standing Council Member of the Shaanxi Society of Geomechanics and Engineering, a member of the Committee of Chief Engineers of the Shaanxi Civil Engineering and Architecture Society, and a member of the Expert Committee of the Shaanxi Highway Society.

Title: Study on rate dependent mechanical behaviors and constitutive model of frozen soils

Abstract:This study focuses on challenges in frozen soil engineering, particularly creep settlement and excessive deformation of artificial frozen walls. It elucidates the relationship between the strain rate, temperature, confining pressure, and the resultant strength and deformation characteristics of frozen soil. Based on a review of existing micro-scale and phenomenological models, this research introduces a rate-dependent constitutive model for frozen soil that incorporates both linear and parabolic strength decay criteria. To address practical engineering scenarios involving sustained loads and fluctuating temperatures, a one-dimensional creep constitutive model is formulated, with temperature serving as the primary independent variable. Furthermore, an independent strain localization analysis was conducted using self-developed equipment to investigate the progression of shear bands and identify the key influencing factors. The findings offer a valuable theoretical and technical foundation for the safe operation and mitigation of issues in frozen soil engineering projects.

Wuhan Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, China

Biography: Professor, doctoral supervisor, and director of the editorial office of Rock and Soil Mechanics at the Wuhan Institute of Rock and Soil Mechanics, Chinese Academy of Sciences (CAS), as well as a recipient of CAS and Hubei Province's overseas high-level talent programs. Dr. Xu focuses on the mechanical properties and constitutive theories of geotechnical materials, interactions between marine engineering structures and soil, and numerical simulations. He has led over 10 national natural science fund projects, provincial/ministerial talent initiatives, and corporate-sponsored research projects, developed five types of geotechnical testing equipment, and published more than 40 papers (with over 30 indexed in SCI). Additionally serves as a member of the Unsaturated and Special Soils Committee and the Youth Working Committee of the Geotechnical Engineering Division of the Chinese Society for Geotechnical Engineering, as well as a senior expert at the Hubei Provincial Department of Science and Technology.

Title: Model test study of the soil resistance to large diameter steel pipe piles during dynamic driving process

Abstract: Ultra-large-diameter and ultra-long steel pipe piles are widely used in the foundation construction of offshore wind turbine installations. For such ultra-long piles, skin friction constitutes the primary component of driving resistance and foundation bearing capacity. Analyzing its variation patterns during dynamic pile driving is a crucial aspect of studying pile drivability. This report investigates two key aspects: pile-soil interface strength and skin friction changes, revealing the weakening patterns of pile-soil interface strength and the variation patterns of skin friction during dynamic pile driving. The findings provide data support for the drivability analysis of ultra-large-diameter steel pipe piles.

Prof. Yongcheng Ji
Northeast Forestry University, China

Biography: Yongcheng Ji, a native of Zibo City, Shandong Province, was born in March 1986. He holds a Ph.D. in Civil Engineering from the University of Colorado in the United States and has completed a postdoctoral fellowship in Forestry Engineering at Northeast Forestry University. He is currently the vice dean of the College of Civil Engineering and Transportation at Northeast Forestry University, a professor and doctoral supervisor. At present, I am mainly engaged in research and application of key technologies for smart transportation infrastructure, durability research on substructures and materials of Bridges in cold regions, key technologies for intelligent inspection of highway engineering in cold regions, and research on the recycling and reuse of solid waste materials and the reinforcement of structures with fiber composite materials.In terms of scientific research, he/she has successively presided over more than ten research projects, including the National Natural Science Foundation of China , the Natural Science Foundation of Heilongjiang Province. So far, more than 70 high-level papers have been published. Over ten invention patents have been authorized. Four textbooks and monographs have been published; Two certificates of scientific and technological achievements in Heilongjiang Province have been obtained. Served as the secretary-general of BEI and a member of the Youth Committee of the Chinese Society of Cryospheric Sciences. Member of the Expert Committee of China's Construction Solid Waste Treatment Industry.

Title: The synergistic enhancement mechanism of multi-source solid waste in concrete and its multi-scale model construction

Abstract: In response to growing pressures on natural resources and the environment, the utilization of multi-source solid wastes—such as construction waste, retired wind turbine blades, agricultural residues, and rubber waste—in concrete production has emerged as a focal point in civil engineering materials research. However, the deterioration of mechanical properties associated with such materials remains an urgent challenge. This paper presents a systematic review of the enhancement effects of carbon fiber-reinforced polymers (CFRP), recycled wind turbine fibers (RWF), rubber particles, and corn stalk powder on the mechanical performance and microstructure of recycled aggregate concrete. Macroscopic mechanical testing demonstrates that CFRP effectively compensates for strength loss in recycled aggregate concrete, resulting in stress-strain curves characterized by higher peak stress and improved ductility. At an optimal dosage of 2%, RWF transforms the failure mode of concrete from brittle to ductile and significantly enhances compressive strength. The synergistic incorporation of rubber particles and corn stalk powder optimizes internal stress distribution, thereby improving flexural strength and toughness. At the theoretical level, a modified constitutive model for CFRP-confined recycled concrete is developed based on experimental data, with its mechanical behavior successfully simulated using ABAQUS. Microstructural analysis reveals that performance improvements are primarily attributed to enhanced fiber-matrix interfacial characteristics: RWF mitigates microcrack propagation through fiber bridging; meanwhile, the filling of micropores by corn stalk powder and energy dissipation via elastic deformation of rubber particles collectively contribute to increased macroscopic toughness and crack resistance. This study validates the feasibility of co-reinforcing recycled concrete with multiple waste-derived components through macro-micro correlation analysis.

The established constitutive and numerical models provide a theoretical foundation for the design and application of green high-performance concrete. Building upon this research framework, future work will expand systematically into three cutting-edge directions: first, investigating the long-term durability of multi-source solid waste concrete in pile foundations under cold-region conditions; second, developing energy self-sufficient and energy-storage technologies for concrete structures; third, exploring precision control strategies for microbial-induced mineralization to enable autonomous crack repair and establishing a microbial healing system tailored for waste-based concrete. These research trajectories collectively form an integrated chain—from sustainable material design to intelligent structural functionality and long-term serviceability—advancing civil engineering toward resource circularity, energy integration, and intelligent resilience.

Speakers of 2025