Denghua Li

Title: **Innovator Denghua Li: Pioneering Ground Reinforcement and Underwater Repair Systems**

Introduction

Denghua Li, a distinguished inventor based in Nanjing, China, is making significant contributions to engineering through his innovative solutions. With two patents to his name, he focuses on advanced methods for reinforcing soft ground and repairing concrete structures. His work is particularly relevant in the fields of civil engineering and geotechnical construction.

Latest Patents

Denghua Li's latest patents include a groundbreaking **Method for Reinforcing Soft Ground by Post-Grouting Combined with Air-Boosted Vacuum Preloading**. This innovative method employs pre-buried prefabricated vertical drains and air-boosted pipes within granular material piles. By utilizing these air-boosted pipes as grouting conduits, the technique minimizes the number of piling operations required. This not only enhances construction efficiency but also mitigates the structural disturbance of the soil, reducing the smear effect's impact on radial permeability and consolidation coefficients. Additionally, this method sidesteps the use of geotextile bags, preventing localized clogging issues and improving the overall strength of soft soil by transforming granular material piles and surrounding soil into composite ground.

Another significant patent is the **Underwater Repair System for Cavity Region of Concrete Panel Rock-Fill Dam Panel**. This system comprises a moving platform, work cabin, pressure drainage apparatus, traction apparatus, and positioning apparatus. It enables the repair of concrete dam panels by controlling platform movement, detecting positions, and creating a pressure-sealed work environment. The innovative drill and grouting apparatus within the work cabin allows for effective repairs in challenging underwater conditions.

Career Highlights

Denghua Li has held pivotal roles at notable organizations such as the Nanjing Hydraulic Research Institute, which operates under the Ministry of Water Resources, the Ministry of Transport, and the Ministry of Electric. He has also worked at the Chengdu Branch of Guodian Academy of Science and Technology Co., Ltd., where he further honed his expertise and contributed to the field.

Collaborations

Throughout his career, Denghua has collaborated with accomplished individuals, including coworkers Yingli Wu and Ruiji Yi. These collaborations have enabled the enhancement of project outcomes and the sharing of innovative ideas in engineering.

Conclusion

Denghua Li stands out as an effective innovator whose patents are reshaping the landscape of civil engineering and construction. With a focus on enhancing construction practices and repair methods, his contributions continue to pave the way for advancements in technology and improvements in infrastructure reliability.