绿色加筋格宾挡墙在软基拓宽工程中的应用

征地困难和新老路基差异沉降明显是沿海软基地区高速公路扩建工程的两大难题。采用绿色加筋格宾挡墙不仅可收缩坡脚、减小土地占用面积,而且能提高路基的整体性、减小新老路基的差异沉降,同时还可以美化公路景观。结合上三高速拓宽工程的建设,介绍了绿色加筋格宾挡墙在软土地基高速公路拓宽工程中的应用及施工要点。

Application of Green Reinforced Gabion Retaining Wall in Soft Subgrade Widening Engineering

The difficult land acquisition and the old and new subgrades with the difference and obvious settlement are two difficulties in the expressway extension projects in the soft subgrade regions along sea.The use of green reinforced Gabion retaining wall can not only shrink the toe and decrease the land area,but also enhance the integration of roadbed and reduce the difference and settlement of the old and new roadbeds,and also can beautify the highway landscape.Combined with the construction of Shangsan Expressway Widening Project,the article introduces the application and the construction gist of the green reinforced Gabion retaining wall in the soft subgrade expressway widening project.