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
Key words
Shenzhen-Zhongshan Link/final joint/sediment siltation/hydrological and sediment monitoring
维普
万方数据