上海东大盈船闸工程结构设计优化与创新

航运枢纽二线船闸的平面布置常受枢纽现有建筑物、土地资源等限制而调整余地有限。以上海东大盈船闸工程为例,通过对周边环境条件、施工条件、环保要求、使用条件等多方面分析,指出原船闸工程结构方案设计的不足,并提出外河引航道采用高桩承台叉桩式驳岸结构、外河导流堤采用高桩墩台导流堤结构、闸室施工采用SWM工法基坑围护结构等优化方案,解决了空间受限、资源紧缺和环保压力等情况下建造二线船闸的技术难题。

Optimization and innovation of structural design in Shanghai Dongdaying ship-lock project

The layout of the second-line ship-lock always needs adjustment because of the existing buildings,land resources,etc.Based on the Dongdaying Port ship-lock engineering,we study the surrounding environment conditions,construction conditions,environmental protection requirements,and utilization conditions,point out the shortage of the original design,and put forward the optimization approaches including the use of the high pile cap forked revetment structure in outer river approach channel,high pile abutment separates diversion dike structure in the outer river diversion dike,the SWM method in the lock chamber construction foundation pit,etc.,by which,we solve the technical problems of building second-line ship-lock under the condition of limited space,shortage of resources and strict requirement of environmental protection.