下穿立交储水管道模型建立及力学分析

发布时间：2018-03-20 00:07

本文选题：道路工程　切入点：下穿立交　出处：《郑州大学学报(工学版)》2015年06期 　论文类型：期刊论文

【摘要】：为改善我国下穿立交积水现状,提出在排水系统中增加储水管道的设计方案.基于交通荷载作用下的管-土力学模型,建立储水管道仿真模型,并采用有限元方法分析该仿真模型,对储水管道进行配筋验算,同时分析储水管道各参数对其力学特性的影响.研究结果表明:该仿真模型是可行的;储水管道埋土深度、土基模量、管壁厚度、管道直径等管道参数对其力学特性影响显著.结合研究结果,推荐储水管道埋土深度1.5 m,底部土基模量40 MPa,管壁厚度10 cm,管道直径1 200 mm.
[Abstract]:In order to improve the present situation of water accumulation in underpass interchange in China, the design scheme of adding water storage pipeline to drainage system is put forward. Based on the pipe-soil mechanics model under traffic load, the simulation model of water storage pipeline is established. The finite element method is used to analyze the simulation model, to check the reinforcement of the water storage pipeline, and to analyze the influence of the parameters of the water storage pipeline on its mechanical properties. The research results show that the simulation model is feasible, the depth of buried soil in the water storage pipeline, the depth of buried soil in the water storage pipeline, The parameters of soil foundation modulus, pipe wall thickness and pipe diameter have significant influence on the mechanical properties. Based on the results, it is recommended that the buried soil depth of water storage pipeline be 1.5 m, the modulus of soil foundation at the bottom 40 MPA, the thickness of pipe wall 10 cm, and the diameter of pipeline 1 200 m.
【作者单位】：长安大学特殊地区公路工程教育部重点实验室;四川省蓝地设计规划设计研究院有限公司;
【基金】：陕西省交通科技项目(13-01K)
【分类号】：TU992.24

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