泡沫轻质土在某软土地基高速公路工程中的应用

Application of Foam Light Soil in a Expressway Project on Soft Soil Foundation

在软基高速公路上,桥头跳车是最普遍的问题,它严重影响了车辆的行驶安全性和驾驶舒适性,因此必须采取有效的防治措施。文章提出在软基路段台后采用泡沫轻质土代替传统的搅拌桩法,实践证明,采用泡沫轻质土可以很好地解决软基高速公路桥梁过渡区的大沉降问题,还可以在一定程度上缩短施工周期,减少施工成本。

Bridge jumping is the most common problem on soft-base expressways,which seriously affects the driving safety and driving comfort of vehicles.Therefore,effective prevention measures must be taken.This paper proposes to use foam light soil to replace the traditional mixing pile method behind the abutment of the soft foundation road section.Practice has proved that the use of foam light soil can well solve the large settlement problem in the bridge transition zone of the soft-base expressway,and can also shorten the construction period and reduce the construction cost to a certain extent.