U型槽结构在某港口铁路中设计及应用

Design and Application of U-shape Groove in a Port Railway

结合某港口铁路专用线工程U型槽在长大地下水路堑中的应用,分析不同结构形式U型槽的优缺点。根据工程特点采用俯斜式梯形截面,利用midas Civil进行结构计算,详细介绍了U型槽抗浮设计、防水设计及临时基坑开挖支护等关键技术。

Combined with the special railway line project of a port,the application of U-shaped groove in long and large underground water road cutting has been introduced and the advantages and disadvantages of different U-shaped groove structures have been analyzed as well.Combined with the characteristics of the project,the down-dip trapezoidal section has been adopted for design,midas Civil has been adopted for structure design calculation.Meanwhile,key technical technologies such as anti floating design,waterproof design and support for temporary foundation pit excavation have been introduced in detail in this paper.