塑料排水板堆载预压处理高速公路软基的研究

通过采用塑料排水板堆载预压处理高速公路软土地基4年多的现场试验,对路堤填筑及预压过程中的地表沉降、横向差异沉降、深层沉降、孔隙水压力及深层水平位移进行了分析,结果表明,采用塑料排水板堆载预压处理高速公路软土地基,在软土较浅、路堤填高不大的常规工期条件下,可以满足一般路段工后沉降的要求。

Research on plastic drainage plate surcharge preloading in treatment of highway's soft foundation

Acoording to the four-year field experiments of adopting plastic drainage plate surcharge preloading in treatment of highway＇ s soft foundation,the paper analyzes the ground settlement, setdement of the transverse difference, the deep settlement, the pore water pressure and the deep transverse displacement. It is shown by the result that the adoption of the plastic drainage plate surcharge preloading in treatment of highway＇ s soft foun- dation can meet the requirements of common section＇s settlement in the regular conditions of the shallow soft soil and low embankment.