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江苏科技信息 ›› 2016, Vol. 33 ›› Issue (8): 69-70.doi: 10.3969/j.issn.1004-7530.2016.08.018

• 论文 • 上一篇    下一篇

岩溶地区嵌岩桩的p-y曲线模型试验研究

黄文畅, 邓飞秀, 王学义, 黄懿   

  1. 中南林业科技大学土木工程与力学学院,湖南长沙,410004
  • 出版日期:2016-03-15 发布日期:2016-03-15

Research on p-y Curve Model Test of Socketed Pile in Karst Region

Huang Wenchang, Deng Feixiu, Wang Xueyi, Huang Yi   

  • Online:2016-03-15 Published:2016-03-15

摘要： 文章通过对岩溶地区嵌岩桩在穿越溶洞和不穿越溶洞2种情况下，现场模型试验得到的p-y曲线进行分析研究，求得2种工况下的试验p-y曲线，并与API建议的黏土p-y曲线进行比较，提出在岩溶地基中2种工况下p-y曲线的理论表达式。其结果表明：穿越溶洞的桩基其p-y曲线符合幂函数分布；不穿越溶洞的桩基其p-y曲线符合双曲线函数分布。为研究岩溶地基中嵌岩桩的水平作用提供依据。

关键词: p-y曲线, 模型桩, 嵌岩桩, 试验研究

Abstract: In this paper, through the two cases of the socketed pile in karst region, the model experiment of p-y curve is analyzed and studied. The foundation theory expression of p-y curve under the two kinds of working conditions is put forward through comparing with clay p-y curve recommended by API. The results show that the p-y curve of pile foundation through the cave accords with power function distribution and the p-y curve that not cross the cave of the pile foundation accords with hyperbolic function distribution, providing the basis to investigate the levels of socketed pile in karst foundation.