4/6/2025, 6:51:15 PM 星期日
用函数模型外推法预测抗拔桩极限承载力
CSTR:
作者:
中图分类号:

TU473.11


Forecast of Extreme Limit of Anti-lifting Pile’s Bearing Capacity by Function Model of Extrapolation
Author:
  • 摘要
  • | |
  • 访问统计
  • | |
  • 相似文献 [20]
  • |
  • 引证文献
  • | |
  • 文章评论
    摘要:

    在桩的抗拔课题中,极限抗拔承载力的确定是其重要内容。当抗拔试桩未加载至其破坏荷载时,根据已有的荷载位移数据,用函数模型外推法预测极限抗拔承载力具有理论意义和实践意义。以工程实例为基础,用Grapher4的曲线拟合功能,选用双曲线模型、指数模型和幂函数模型,成功预测出了极限抗拔承载力。通过结果比较,表明指数函数模型具有较好的预测精度。

    Abstract:

    The determination of extreme limit of anti-lifting bearing capacity is an important content for pile’s anti-lifting research. When the load of anti-lifting pile does not reach the disrupt load, the forecast of extreme limit of anti-lifting pile’s bearing capacity by function model of extrapolation is significant in both theory and practice, according to the known load-displacement data. The extreme limit of anti-lifting bearing capacity was successfully forecasted out by hyperbola model, exponent model and power function model, using the imitation functions of curves of Grapher 4 and taking project cases as a base. The comparison of the results of three function models shown that the exponent model has higher forecast precision.

    参考文献
    网友评论
    网友评论
    分享到微博
    发 布
引用本文

王之军,刘建平,袁加贝.用函数模型外推法预测抗拔桩极限承载力[J].钻探工程,2005,32(9):12-14.
WANG Zhi-jun, LIU Jian-ping, YUAN Jia-bei. Forecast of Extreme Limit of Anti-lifting Pile’s Bearing Capacity by Function Model of Extrapolation[J]. Drilling Engineering, 2005,32(9):12-14.

复制
分享
文章指标
  • 点击次数:1267
  • 下载次数: 394
  • HTML阅读次数: 193
  • 引用次数: 0
历史
  • 收稿日期:2005-06-02
  • 最后修改日期:2005-06-02
文章二维码