This paper discusses the environment of sedimentation,the distribution,the characters of clayey soil and the bearing capacity for piled foundaton,and explain for instance.

• 此土层在上海地区分布较广,土质坚硬,常作为建(构)筑物的桩基持力层,文章从沉积环境、分布状况、土质特性及桩基承载力四个方面进行了分析探讨,并举实例说明。