基于数值模拟技术的超大型基坑排水设计及优化

基于多哈新港大型内挖式码头项目,将传统的基坑排水设计方法与现代的有限元分析技术结合,针对超大型基坑开挖的工程特点,对影响工程进度的关键因素——降排水设计进行分析。对原有规范中根据实际情况与设计经验进行取值的深井井深与井间距利用有限元软件进行模拟分析,从而给出优化建议,提高了设计的可靠度。结果表明,数值模拟技术的应用起到了节约设计成本、优化设计方案的重要作用,这种传统与现代方法相结合的设计模式对于类似的项目实施有着很好的借鉴意义。

Design and optimization of large pit drainage design based on numerical simulation technology

Based on the project of large internal digging harbor in Doha,and according to the engineering characteristics of the large foundation pit excavation,we analyze the key factors affecting the drainage engineering progress,i.e.the drainage design by combining the traditional foundation pit drainage design method and the modern finite element analysis technology,simulate the deep well depth and the distance between wells using the finite element software according to the actual situation and the design experience in the original specification,and put forward the optimum design,by which the reliability is improved.The results show that the application of numerical simulation technology plays an important role in saving the design cost and optimizing the design scheme.The design pattern which combines the traditional with the modern method may serve as reference for similar projects.