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力学与实践 ›› 2010, Vol. 32 ›› Issue (3): 57-61.doi: 10.6052/1000-0879-2009-174

• 应用研究 • 上一篇    下一篇

抗滑桩与滑体之间土拱效应的理论分析

魏作安 周永昆 万玲 赵颖 代高飞   

  1. 重庆大学资源及环境科学学院
  • 收稿日期:2009-04-20 修回日期:2010-03-02 出版日期:2010-06-08 发布日期:2010-06-08

THEORETICAL ANALYSIS OF THE SOIL-ARC MECHANISM BETWEEN SOILS AND REINFORCING PILES

WEI Zuoan ZHOU Yongkun WAN Ling ZHOU Ying DAI Gaofei   

  • Received:2009-04-20 Revised:2010-03-02 Online:2010-06-08 Published:2010-06-08

摘要: 从力平衡的角度,分析了抗滑桩的抗滑阻力与滑体的下滑力之间的依存关系以及传递过程. 利用弹性力学理论,推导出桩后土体应力场的分布函数. 通过绘制应力等值线图, 发现抗滑桩与土体之间产生土拱现象的机制是滑体内的应力状态由不平衡逐渐到 达平衡的结果,属于应力拱的表现形式.

关键词: 抗滑桩, 应力分布, 解析解, 岩土力学

Abstract: Anti-slide pile is a major landslide prevention measure. This paper analyzes the transition process of force between soil and anti-slide pile based on force equilibrium. According to the relationship of acting force and reacting force between soil and anti-slide pile, the stress distribution in the soil behind anti-slide pile is obtained. From the stress isograms, it is shown that the mechanism of soil arc between anti-slide pile and soil is the result of the stress state from imbalance to balance in soil.

Key words: reinforcing piles, stress distributing, analytical