西北戈壁地区高速公路软弱地基的处理

Treatment of Soft Subgrade of Express Highways in the Gobi Area of Northwest China

针对西北戈壁地区某高速公路软弱地基的工程地质特征,采用粉喷法处理软弱地基.分析研究了粉喷桩的单桩承载力、复合地基的承载力和沉降量等特征,论述了粉喷法在西北戈壁地区软弱地基处理中的适用性,为今后类似工程提供了可资借鉴的经验.

In light of the geological features of the soft subgrade of an express highway in the Gobi Desert area in northwest China, the method of powder injection is applied to the treatment of the soft subgrade. A brief survey is given about the characteristics such as the bearing capacity of the single pile of powder-jetted piles and the bearing capacity and settlement of the composite subgrade. Discussion is presented of the applicability of the powder injection method in the treatment of the soft subgrade in the Gobi Desert area in northwest China, which affords experiences for reference in future similar projects.