The structural design of the"integral prefabricated underwater push-out"final joint is complex,the installation accuracy is high,and the construction risk is large.In order to effectively ensure the safety and controllability of the underwater construction process of the final joint,and ensure the construction quality of the final joint and the immersed tubes installed on both sides,the rebound force of the GINA waterstop during the hydraulic crimping process was offset by installing a temporary anchoring system of a specific structure.According to its working principle and force characteristics,combined with relevant data,a plan for the limit rigid tie rod removal scheme under the action of large stress was further studied and formulated to ensure the smooth realization of the final joint construction to provide the necessary foundation.Through on-site practice,the system and process can be used as a reference in similar projects.
final jointtemporary backstop devicetemporary anchoring systemlimiting deviceprocess optimization
NETL
NSTL
万方数据
