塑料套管桩在高速公路软基处理中的应用

该文介绍了软基处理中塑料套管桩的施工方法，指出套管混凝土桩与当前高速公路软基处理中普遍使用的水泥搅拌桩、预应力管桩、各种振动沉管桩等路堤桩相比，更加经济，加固效果更好，质量更容易保证。

Application of Plastic Sleeve Pile in Soft Subgrade Treatment of Expressway

The article introduces the construction method of the plastic sleeve pile in the soft sub- grade treatment,and points out that the sleeve concrete pile is more economic,its reinforcement ef- fect is batter and its quality is easier to guarantee after compared with the embankment piles of the cement agitated pile,pre-stressed pipe pile and various vibrating sunk pipe piles commonly used in the soft subgrade treatment of the expressway.