镇江地区下蜀黄土承载力探讨

The Discussion of Xiashu Loess′ Bearing Capacity in Zhenjiang Area

镇江地区下蜀黄土是分布于我国长江流域的一种特殊性土,是在干旱气候条件下风力堆积而成,其成因为风成。本文探讨了粘粒含量、塑性指数、标贯击数、比贯入阻力对下蜀黄土承载力的影响。同时指出其粉粒含量超过50%,不能简单地套用粘性土公式。在总结各地下蜀黄土分布地区采用的承载力公式的基础上,注意到N、Ip、Ps与fo、fk的相关性,提出了适合镇江地区的下蜀黄土承载力经验公式。

Xjashu loess is a kind of geographical special soil located in the area of the Changjiang River, Which was piled up by wind force in dry weather. This paper discusses the Xiashu loess capacity influence of viscidity content, plasticity Index and standard penetration test＇s blow count. At the same time, the clay formula cannot be used simply because of its 50 percent powder content, the authors sum up the clay and new loess formula used before in the area of Xiashu loess distributed, find the connection between Ip, Pn with fo, fk, and put fo/ward an empirical formula of Xiashu loess＇ bearing capacity in Zhenjiang area