大断面盾构内部弧形件拼装和填充层质量控制要点分析OA

This paper briefly introduces the current status and development of the assembly process for the internal structure of large-section shield tunneling.Based on engineering cases,the assembly process for the arc components of large-section shield and the key quality control points for the filling layer are analyzed,and a filling rate calculation method is developed.The filling quality is controlled from two aspects of the expansion degree of self-compacting concrete and the filling rate to ensure the compactness and fullness of the filling.This method can be used as a reference for the application of large-section shield arc component assembly process in similar projects.