摘要
在条形地基极限承载力的Ｐｒａｎｄｔｌ课题和Ｔｅｒｚａｃｈｉ课题的基础上，结合滑动土体绕过桩时所遇到的极限阻滑力的理论解答，导出了疏桩承台下地基土极限承载力由于桩的遮拦加强作用而提高的理论公式。公式中所反映的影响因素与实际情况相符，算例结果表明了其合理性。
Based on Prandtl's question and Terzachi,s question for the ultimate bearing capacity of foundation and combined with the theory answer for the ultimate resistance to thesoil sliding around a pile, the theory formula of the serement of the ultimate bearing capacityof the soil under a strip cap with sparse piles due to the resist and strengthenning action ofpiles is deduced in this paper.The affection factor reflected in the formula fits in practicalcase. The results obtained in some examples shows that the formula is reasonable.
出处
《南京建筑工程学院学报》
1995年第2期1-11,共11页
Journal of Nanjing Architectural and Civil Engineering Institute(Natural Science)
基金
国家"八五"攻关项目
关键词
复合桩基
条形基础
极限承载力
土
承台
sparse piles cap
the ultimate bearing capacity of soil
sliding field
the resist and strengthenning action
