深中通道沉管隧道最终接头基槽回淤监测及分析  

Monitoring and analysis of sediment siltation in the final joint foundation trench of the Shenzhen-Zhongshan Link immersed tunnel

作　　者：古世煌 张静华 宁进进 GU Shi-huang;ZHANG Jing-hua;NING Jin-jin(Administration Center of Shenzhen-Zhongshan Link,Zhongshan,Guangdong 528400,China;Tianjin Research Institute for Water Transport Engineering,M.O.T.,Tianjin 300456,China;Tianjin Port Engineering Design&Consulting Company Ltd.of CCCC First Harbor Engineering Co.,Ltd.,Tianjin 300461,China)

机构地区：[1]深中通道管理中心,广东中山528400 [2]交通运输部天津水运工程科学研究院,天津300456 [3]中交天津港湾工程设计院有限公司,天津300461

出　　处：《中国港湾建设》2024年第11期31-37,共7页China Harbour Engineering

摘　　要：为了掌握深中通道沉管隧道工程接头管节基槽晾晒期的泥沙淤积情况,保证合龙阶段接头管节与两侧管节实现精确对接,采用深中通道沉管隧道最终接头E23管节基槽晾晒期的地形监测数据,结合工程附近水动力观测数据,开展最终接头基槽的回淤分析。基于回淤监测数据的分析结果显示,接头管节基槽在晾晒期内的淤积主要发生在基槽槽底区域,个别时段北边坡淤积厚度较大。接头管节基槽内泥沙回淤厚度与潮差及上游径流量的相关分析显示,槽底淤积厚度与平均潮差体现出显著的正相关关系,与径流关系则不太显著。In order to know the sediment siltation condition during the drying period in the foundation trench of the joint tube of the Shenzhen-Zhongshan Link immersed tunnel project,and to ensure the joint tube can accurately docking with tubes on both sides in closing stage,an analysis of sediment siltation in the final joint foundation trench was carried out by utilizing the topographic monitoring data during the drying period of the final joint E23 tube foundation trench in the Shenzhen-Zhongshan Link immersed tunnel,combined with the hydrodynamic observation data near the project.The analysis results based on the siltation monitoring data show that the siltation around the joint tube foundation trench mainly occurs at the bottom of the trench during the drying period,and the siltation on the north side slopes is generally larger.The correlation analysis between siltation thickness and the average tidal range and upstream runoff shows that the cumulative siltation thickness at the bottom of the tube and the average tidal range show a significant positive correlation,while the correlation between siltation thickness and runoff is not that significant.

关 键 词：深中通道 最终接头 泥沙回淤 水沙监测 

分 类 号：U652.3[交通运输工程—港口、海岸及近海工程]