Mainly engaged in the research, development and application of structural engineering, geotechnical engineering and new engineering materials. In 1993, the prestressed anchor flexible support method for deep foundation pits was proposed and successfully used in actual projects. This method has the advantages of safety, reliability, low cost, and convenient construction, and has been widely used across the country. The developed concrete super early strength agent (Early Strength King) uses ordinary Portland cement to achieve a compressive strength ratio of 366 in one day, which can reach more than 90 of the design strength. It can be used for bridge deck repairs and can be opened to traffic in 6 hours. As the main drafter, he has compiled 3 national standards including "Technical Specifications for Building Slope Support" and "Specifications for Design and Construction of Geotechnical Anchors"; he has obtained 3 national standards including "A Flexible Support Method for Foundation Pit Side Walls" National invention patent; published 3 monographs including "Calculation Methods and Applications in Bridge Engineering Design", "Mechanical Properties of Steel-Reinforced High-Strength Concrete Short Columns" and "Theory and Practice of Prestressed Anchor Flexible Support Methods in Deep Foundation Pits"; in Published more than 50 papers in core journals at home and abroad. He has presided over and participated in nearly 100 vertical and horizontal scientific research projects; presided over the design, testing and construction of more than 100 large-scale deep foundation pits, high slopes and structural projects, and solved a large number of difficult and complex technical problems in the projects.