Qingwei Li

Title: Qingwei Li: Innovator in Tunnel Boring Technology

Introduction

Qingwei Li is a notable inventor based in Shijiazhuang, China. He has made significant contributions to the field of tunnel boring technology, particularly through his innovative methods for assessing and improving the performance of tunnel boring machines (TBMs). With a total of two patents to his name, his work is recognized for its practical applications in the construction industry.

Latest Patents

Qingwei Li's latest patents include a method for identifying the vibration magnitude of a TBM main beam using geological feature parameters and tunneling feature parameters. This method involves collecting vibration signals and tunneling parameters through in-situ tests, establishing a correlation between these parameters, and creating a multivariate regression prediction model for vibration. The model has shown an average relative error of prediction of 12% or less, providing valuable insights into the vibration features of TBMs.

Another significant patent is a method for real-time strength estimation, grading, and early warning of rock mass during TBM tunneling. This method establishes a general relation model of equivalent strength of the TBM boring rock mass and applies it to real-time construction scenarios. It allows for the estimation of the integrity coefficient of the rock mass and provides grading and early warning based on established standards.

Career Highlights

Qingwei Li has worked with prominent organizations such as Shijiazhuang Tiedao University and China State Railway Group Co., Ltd. His experience in these institutions has allowed him to develop and refine his innovative methods, contributing to advancements in tunnel construction technology.

Collaborations

Throughout his career, Qingwei Li has collaborated with notable colleagues, including Lijie Du and Yalei Yang. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and expertise in the field of tunnel boring.

Conclusion

Qingwei Li's contributions to tunnel boring technology through his innovative patents and collaborative efforts highlight his importance in the field. His work not only enhances the efficiency of TBM operations but also ensures safer and more effective tunneling practices.