既有船坞接长工程中格型地下连续墙坞墙设计研究  

Design and analysis of lattice diaphragm wall structure in extension project of existing dock structures

作　　者：李昀[1] 顾倩燕[1] 费永成[1] 

机构地区：[1]中船第九设计研究院工程有限公司,上海200063

出　　处：《岩土工程学报》2010年第S2期323-326,共4页Chinese Journal of Geotechnical Engineering

基　　金：上海市科学技术委员会科技攻关项目(08201201103)

摘　　要：介绍了格型地下连续墙这种主体工程与支护结构相结合的半重力式围护结构及其在既有船坞接长工程中的应用。结合外高桥2号船坞接长工程,对空间效应较为明显的格型地下连续墙结构进行考虑结构与土体共同作用的三维数值分析,并与现场实测数据进行了对比。分析表明,这种新型的自立式结构不需要内部支撑,通过合理的前后墙与隔墙的布置,能够较好地发挥格仓内部土体的作用,有效的控制围护结构的变形,可为周围环境条件要求较高的船坞接长工程可以提供有效的工程解决方案。The lattice diaphragm wall structures,a new kind of retaining wall,perform both the temporary retaining braces and the permanent structures.Researches the lattice diaphragm wall structures used in the project of 2nd dock of Waigaoqiao shipbuilding project are performed and a three-dimensional numerical simulation considering the interaction between the soil inside the lattice and the diaphragm walls is carried out in order to realize the space effect of this special structure.And the results are compared with the on-site tests data.The analysis shows that the lattice diaphragm wall do not need inner supporting system and can exert soil strength in lattice and effectively control the deformation of the retaining system by reasonably arrange the front,middle and back walls.The lattice diaphragm wall provides a solution for extension project of existing dock in rough fields.

关 键 词：格型地下连续墙 船坞工程 重力式围护结构 

分 类 号：TU476.4[建筑科学—结构工程]