黄土地区涵洞地基处理效果研究

Study on Treatment Effect of Culvert Foundation in Loess Area

涵洞是公路的重要组成部分,重要性不言而喻。山西作为典型的黄土地区,地形、地质条件复杂,修建涵洞经常出现不同类型的病害。以山西某项目箱涵为实体工程,对涵底土样进行物理力学性质检测,分析水泥土搅拌桩处理涵底土体后地基土湿陷系数变化情况,对涵洞累计沉降量进行计算分析,可为黄土地区的涵洞地基处理工程提供技术借鉴。

The culvert is an important part of highway.As a typical loess area,Shanxi Province has complicated terrain and geological conditions,and different kinds of diseases often appear when culverts are built.In this paper,based on the box culvert of a project in Shanxi Province,the physical and mechanical properties of soil samples of the culvert bottom were tested to analyze the change of the collapsibility coefficient of foundation soil after treating the soil of the culvert bottom with cement-soil mixing pile,and to calculate the cumulative settlement of the culvert,which can provide technical reference for culvert foundation treatment in loess area.