大桥主墩沉井施工方案及监控

Open Caisson Construction Scheme on Main Piers of Extra-long Bridges and the Monitoring & Control

沉井下沉是沉井施工的一个关键工序,也是一项工程成败的关键,因此做好沉井下沉是一项工程的重中之重。本文结合印度泰米尔纳度邦凯瑞大桥的沉井施工,重点阐述了钢壳沉井在不同地质情况下下沉时出现的各种问题,及其解决方案。

Sinking of open caisson is the key procedure during construction, success of which will put great positive influence on the execution of the entire project. Thus, it is the key point to do this procedure well. On the basis of the experience of open caisson experience in the construction of Kaveri Bridge in Tamil Nadu of India, this paper illustrates different problems that might be met during the sinking of steel shell open caisson in various geological stratum, and the solutions are put forwards also.