Qiguang Duan

Title: Qiguang Duan: Innovator in Grouting Technology

Introduction

Qiguang Duan is a notable inventor based in Suzhou, China. He has made significant contributions to the field of engineering, particularly in the development of innovative grouting technologies. His work focuses on addressing challenges in large diameter shield engineering, especially under complex geological conditions.

Latest Patents

Qiguang Duan holds a patent for a "Synchronous single-liquid grouting slurry, its technology and application for large diameter shield engineering under water-rich, high-pressure and weak soil strata conditions." This invention comprises a unique formulation of raw materials, including 1050-1200 parts of gold tailing, 420-480 parts of silicate cement clinker, and various other components. The technology aims to control the particle sizes of the materials, ensuring optimal performance in challenging environments. The slurry production technique involves several advanced processes, including crushing, sieving, and variable speed mixing.

Career Highlights

Throughout his career, Qiguang Duan has worked with prominent organizations such as Ocean University of China and China Railway 14th Bureau Group Corporation Limited. His experience in these institutions has allowed him to refine his expertise in engineering and innovation.

Collaborations

Qiguang Duan has collaborated with notable colleagues, including Fei Sha and Jian Chen. Their joint efforts have contributed to advancements in the field of grouting technology.

Conclusion

Qiguang Duan's innovative work in grouting technology showcases his commitment to improving engineering practices. His contributions are vital for the advancement of large diameter shield engineering, particularly in challenging conditions.