沉管隧道最终接头水力平衡+千斤顶推出工艺的推出速度计算方法研究及应用  

Research and application of jacking speed calculation method of"hydraulic balance+jack thrust"process for final joint of immersed tube tunnels

作　　者：宁进进 熊昊翔 张朝亮 NING Jin-jin;XIONG Hao-xiang;ZHNAG Zhao-liang(Tongji University,Shanghai 200092,China;CCCC Tianjin Port Engineering Design&Consulting Co.,Ltd.,Tianjin300461,China;Key Laboratory of Coastal Engineering Hydrodynamics,CCCC,Tianjin 300222,China;Shenzhen-Zhongshan Link Administration Center,Zhongshan,Guangdong 528400,China;Megatec(Shanghai)Co.,Ltd.,Shanghai 201108,China)

机构地区：[1]同济大学,上海200092 [2]中交天津港湾工程设计院有限公司,天津300461 [3]中交集团海岸工程水动力重点实验室,天津300222 [4]深中通道管理中心,广东中山528400 [5]穆钜(上海)动力技术有限公司,上海201108

出　　处：《中国港湾建设》2025年第2期83-87,共5页China Harbour Engineering

摘　　要：深中通道沉管隧道采用水力平衡+千斤顶推出的方式,水力平衡过程中进水管系的沿程压力损失与推出速度有直接关系,通过查阅相关资料,采用假定推出速度推算千斤顶增加值的方式,确定了施工推出速度。经过与现场推出速度、千斤顶推出和水头差的监测数据对比,验证了该计算方法有一定的指导性,施工方案中假定的推出速度也是合理的,同时也可参考实际推出的经验为后续类似推出方式提供一些新思路。The immersed tube tunnel of the Shenzhen-Zhongshan Link adopts a method of hydraulic balance combined withjack thrust.During the hydraulic balance process,the pressure loss along the water inlet pipe system is directly related to thejacking speed.By consulting relevant materials,this paper determines the construction jacking speed by assuming the jackingspeed and calculating the increment of the jack.After comparing with the monitoring data of on-site jacking speed,jack thrust,and head difference,it has been verified that this calculation method has a certain degree of guidance.The assumed jackingspeed in the construction plan is also reasonable.At the same time,it can also provide some new ideas for similar jackingmethods in the future by referring to actual jacking experience.

关 键 词：沉管隧道 最终接头 水压平衡 沿程压力损失 千斤顶推出 推出速度 

分 类 号：U655.1[交通运输工程—港口、海岸及近海工程]