最终接头临时锚拉系统设计及工艺研究  

Design and process study of temporary anchoring system for final joint

作　　者：董辉 管泽旭 邓斌 周相荣 赵浩波 DONG Hui;GUAN Ze-xu;DENG Bin;ZHOU Xiang-rong;ZHAO Hao-bo(No.2 Engineering Co.,Ltd.of CCCC First Harbor Engineering Co.,Ltd.,Qingdao,Shandong 266071,China;China Communications Highway Planning and Design Institute Co.,Ltd.,Beijing 100088,China)

机构地区：[1]中交一航局第二工程有限公司,山东青岛266071 [2]中交公路规划设计院有限公司,北京100088

出　　处：《中国港湾建设》2024年第7期55-60,共6页China Harbour Engineering

摘　　要：“整体预制水下推出式”最终接头结构设计复杂,安装精度要求高,施工风险大。为有效保证最终接头水下施工过程安全可控,保证最终接头及其两侧已安装沉管施工质量,通过安装特定结构的临时锚拉系统,抵消水力压接过程中GINA止水带反弹作用力。根据其工作原理及受力特点,结合有关资料进一步研究、制定了大应力作用下限位刚拉杆拆除方案,确保最终接头施工顺利实现提供必要基础。通过现场实践,该系统及工艺可在类似工程中参考应用。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.

关 键 词：最终接头 临时止退装置 临时锚拉系统 限位装置 工艺优化 

分 类 号：U655.31[交通运输工程—港口、海岸及近海工程]