浅海大直径管道铺设应力控制技术研究

摘要:

以徐圩新区达标尾水排海工程为例，大直径排放管管道弯曲应力控制工况为铺管施工环节，铺管施工需要严格控制管道弯曲应力，保证管道安全。本文对浅海铺管施工管道受力进行了理论分析，计算得到特定管径、管材、壁厚的管道铺设的极限水深，并利用有限元计算方法进行了验证，同时，介绍了铺管施工中管道应力控制的施工关键技术，为类似工程提供借鉴。

Abstract:

Taking the tail water discharge project in Xuwei New District as an example, the bending stress control condition of large-diameter discharge pipes is the pipe-laying construction link. The pipe-laying construction needs to strictly control the bending stress of the pipeline to ensure the safety of the pipeline. In this paper, a theoretical analysis of the forces on pipelines in shallow sea laying construction is carried out, and the limit water depth of pipeline laying with specific pipe diameter, pipe material and wall thickness is calculated and verified by the finite element calculation method. At the same time, the pipeline laying construction is introduced. The key construction technology of stress control provides reference for similar projects.