粉砂土地基上公路构造物的承载力和基础型式研究

Study of the bearing capacity and foundation pattern of structures in the highway on the silty sand ground

文章通过现场原位试验成果与各点钻孔资料的对比分析,总结出各种分布类型的砂性土地基的承载力与按规范选定地基承载力值等相关数据的差异规律性。根据所得差异规律性,通过计算,能够准确、经济、合理的选择公路小型构造物的基础型式。为今后在“砂性土”地区修建高速公路提供成熟合理的经验和技术支持。

Silty sand layers occur extensively in the north of Huaihe River in Anhui Province. In the design of Hefei-Xuzhou Expressway, the bearing capacity of silty sand ground of various kinds of distribution type was achieved through comparing and analyzing of the in-situ testing results and the data of each boring hole. The regularity of the difference between the obtained bearing capacity and that determined according to the State Standard is summarized in the paper. On the basis of the difference regularity, the foundation pattern of small-scale structures can be chosen accurately, economically and reasonably. This study provides useful experience and technical support for building expressways in the north of Huaihe River in Anhui Province in the future.