软土地区地下构筑物上覆道路相适配的三维有限元分析模型

Three-dimensional Finite Element Analysis Model of Road Adaptation on Underground Structures in Soft Soil Area

文章依托某市政道路隧道及轨道交通市政配套工程实例,立足施工现场和项目施工体量,以ABAQUS有限元软件为三维有限元分析平台,构建与构筑物上覆道路现有参数相适配的三维有限元分析模型,并围绕软土地基,重点研究路基路面应力、路表竖向位移等关键指标,计算结果与参数敏感性,强化对该市政工程施工状况的认识,分析上覆道路的损坏模式及发生各类损坏现象的具体成因,进而采取针对性的处理措施,切实提高构筑物上覆道路与既有路基结合部质量,规避各类问题。

Combining with a municipal road tunnel and rail transit municipal engineering example,starting from the construction site and the construction volume of the project,this paper takes ABAQUS finite element software as a three-dimensional finite element analysis platform to build a three-dimensional finite element analysis model that is compatible with the existing parameters of the road overlaying the structure.Focusing on soft soil foundation,it focuses on key indicators such as subgrade and pavement stress,vertical displacement of road surface,calculation results and parameter sensitivity,strengthens the understanding of the construction status of the municipal project,analyzes the damage mode of the overlying road and the concrete causes of all kinds of damage phenomena,and then takes targeted treatment measures to effectively improve the quality of the junction between the overlying road and the existing roadbed and avoid all kinds of problems.The understanding of the construction situation of the municipal engineering,analyzing the damage mode of the overlying road and the concrete causes of various damage phenomena,and then taking targeted treatment measures,to improve the quality of the joint between the road overlaying the structure and the existing roadbed,avoid all kinds of problems.