摘要
Abstract
The subgrade of Yulin Section in Baotou-Xi'an Railway passes through the aeolian sand area. The purpose of this research is to take full advantage of the dug-out aeolian sand so as to reduce the amount of soil borrowing, avoid long-distance soil borrowing in the wind-blown sand area, lessen the damage on the desert environment and cut down the project investment. The article, aiming at the characteristics that aeolian sand as filling material alone is hard to meet the requirements of the compaction standard of subgrade filling-materials, combining with the characteristics of (he local floury silt, carries out the technical research into the improvement schemes in which the aeolian sand is mixed with different proportions of floury silt respectively. Finally, By means of comparative analysis between the laboratory experiment data and the field construction data, the technical problem is solved when aeolian sand is used as the subgrade filling-material.关键词
铁路路基/风积沙/填料/物理改良Key words
railway subgrade/ aeolian sand/ filling material/ physical improvement分类
交通工程
