Analysis Of Corrugated Steel Pipe Culvert’s Temperature Field And Stress In Permafrost Region

In the main problems encountered in the engineering construction in permafrost area is frost heaving and thaw settlement, especially in high temperature and high ice content permafrost sections, vulnerable to the influence of frost uplift project or thaw settlement of culvert work, will also be the two problems, this is mainly because the culvert for water construction, it the setting of improved roadbed in permafrost regions of the transverse drainage conditions, conducive to the stability of Subgrade in permafrost region, while the surface temperature changes, the original permafrost ground the ice melted, the culvert foundation settlement; on the other hand, with the frost heaving of soil layer freezing produces, can make the culvert damage. The corrugated pipe culvert is a flexible structure culvert. Because of its excellent mechanical properties, it has a strong adaptability. Larger or prone to lots of inhomogeneous deformation. The application of corrugated steel culvert, tunnel and bridge and culvert has very broad prospects in deformation and fatigue damage of frost heaving. Good durability, long service life. And it is advantageous for the rapid construction, which greatly reduces the movement and damage to the permafrost, and should be used as the preferred culvert in the permafrost region of high temperature.. To meet the requirements. The main content of this paper is to: 1,collection the data of the Qinghai Gonghe to Yushu(Jiegu) corrugated road culvert, and carries on the investigation, observation of the highway. 2,Gonghe to Yushu(Jie Gu) highway B2 standard K557+499 diameter 3M corrugated pipe culvert testing. 3, corrugated corrugated pipe culvert on the diameter of 3M and 3*4M tube are simulated by finite element method, the permafrost regions of corrugated steel pipe culvert temperature field distribution characteristics, and the variation of deformation and frost heaving of culvert.