软土地区多孔框架涵顶进结构力学特性研究

Study on Mechanical Characteristics of Jacking Structure of Porous Frame Culvert in Soft Soil Area

摘要:

以宁波市云台山路下穿北仑铁路工程中采用的8孔框架涵结构为例，建立有限元力学模型，分析宁波软土地区8孔框架涵顶进过程的力学特性。所得结论不仅指导了该工程施工及施工监测，还可对其他软土地区多孔框架涵顶进工程提供参考。

关键词:框架涵;顶进;软土;力学特性

Abstract:

Taking the 8-porous frame culvert structure used in Ningbo City Yuntaishan Road Underpassing Beilun Railway Project as an example, the finite element mechanical model is established to analyze the mechanical characteristics of 8-porous frame culvert jacking process in the soft soil area of Ningbo. The given conclusion not only guides the engineering construction and the construction monitoring, but also can provide the reference for the jacking engineering of the porous frame culverts in the other soft soil areas.

Key words:frame culvert, jacking, soft soil, mechanical characteristic