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有限元法分析抗滑桩-土坡相互作用系统的稳定性
引用本文:李仁平,蔡爱国,盛初根.有限元法分析抗滑桩-土坡相互作用系统的稳定性[J].三峡大学学报(自然科学版),2007,29(5):396-401.
作者姓名:李仁平  蔡爱国  盛初根
作者单位:1. 三峡大学,土木水电学院,湖北,宜昌,443002
2. 湖北煤炭地质一二五队,湖北,宜昌,443003
3. 宁波市交通设计院,浙江,宁波,315000
摘    要:采用有限元法分析了抗滑桩加固后土坡的稳定性.土体被认为是理想弹塑性模型,服从Mohr-Coulomb屈服准则,加固土坡的排桩被简化成等效的板桩,当其达到极限容许弯矩时即认为达到弯断破坏,土坡安全系数的计算采用强度折减法.文中还讨论了抗滑桩类型、抗弯刚度、极限弯矩及排桩设置位置对加固土坡整体稳定性的影响.

关 键 词:土坡  抗滑桩  有限元法  安全系数
文章编号:1672-948X(2007)05-0396-06
修稿时间:2005-11-12

Stability Analysis of Pile-Slope Interaction by Finite Element Method
Li Renping,Cai Aiguo,Sheng Chugen.Stability Analysis of Pile-Slope Interaction by Finite Element Method[J].Journal of China Three Gorges University(Natural Sciences),2007,29(5):396-401.
Authors:Li Renping  Cai Aiguo  Sheng Chugen
Abstract:The stability of slopes reinforced by piles is analyzed withfinite element method under the hypothesis of plane strain.The soil is idealized to be elastoplastic,obeying Mohr-Coulomb yield criterion.The equivalent sheet-pileis adopted in which the plastic bendingfailure will occur as soon asit reaches the ulti mate allowable moment.The safety factor of the pile-reinforced slope is calculated by using strength reduction method.The effects of types of piles,flexural rigidity,ulti mate allowable moment and the location of piles-rowon safety factor are discussedin detail.
Keywords:slope  anti-slide piles  finite element method  safety factor
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