滨海电厂排水沉管设计及施工工艺

沉管法目前被广泛应用于滨海电厂排水工程，随着新工程的不断建设，新的设计理念不断涌现，施工工艺得到了不断发展和完善。依托国内外已建及在建沉管工程，针对排水沉管施工过程中的基础处理方法、接头处理方式及浮运安装工艺等相关技术难题进行了研究。归纳总结了排水沉管安装、回填、使用及检修过程中的受力工况，针对电厂排水沉管结构内力提出了一套系统的计算方法，采用国际上通用的有限元软件ANSYS实现了沉管全生命周期受力分析。通过对电厂排水沉管的关键技术及计算方法研究，为类似项目提供了参考和借鉴。

Design and construction technology of drainage immersed pipe for coastal power plant

The drainage immersed pipe method is widely used in the drainage engineering of costal power plants at present.With the continuous construction of new projects,the new design methods and key technologies of drainage immersed pipe are constantly developed and improved.Based on the existing and under construction drainage immersed pipe projects at home and abroad,this paper studies the foundation treatment method,joint treatment method,floating transportation and installation technology and other related technical problems in the construction process of drainage immersed pipe.This paper summarized drainage immersed pipe stress conditions in the process of installation,use and maintenance.A systematic method for structural calculation of drainage immersed pipe is put forward.The finite element software ANSYS is applied in numerical calculation.The structural analysis of the whole life cycle of immersed pipe is realized.The key technology and calculation method of drainage immersed pipe in power plant drainage are studied,which can provide reference for similar projects.