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
董辉 1管泽旭 1邓斌 2周相荣 1赵浩波1
作者信息
- 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
- 折叠
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.
Abstract
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Key words
final joint/temporary backstop device/temporary anchoring system/limiting device/process optimization引用本文复制引用
出版年
2024
NETL
NSTL
万方数据