高填方导致临近桥墩变形破坏三维数值分析_陕西省公路学会

高填方导致临近桥墩变形破坏三维数值分析

文章编号:(201603-0027-04

高填方导致临近桥墩变形破坏三维数值分析

张忠胜

(贵州高速ope电子竞技集团有限公司,贵州 贵阳  550001

  要:高填方挡土墙导致桥墩发生变形破坏,通过进行补充勘察确定场区岩土体的物理力学性质,采用FLAC3D有限元软件构建桥墩受力模型,对桥墩进行受力反分析,确定高填方对桥墩变形的影响,通过对桥墩裂缝进行表观观察,三维数值反分析结果与实际发生变形破坏一致,为高填方对桥墩影响分析及治理提供借鉴。

关键词:高填方桥墩位移塑性区拉应力数值分析

中图分类号U441          文献标识码A

A Three-dimensional Numerical Analysis of Deformation

and Failure of Adjacent Piers Caused by High Fill

ZHANG Zhong-sheng

Guizhou Expressway Group Co.Ltd.Guiyang 550001China

AbstractHigh fill retaining wall leading to the occurrence of deformation and failure of the pier.The physical and mechanical properties of rock and soil field region were determined by carrying out supplementary investigation, and a pier FLAC3D force model was builded by the the finite element software to determine the high fill deformation of bridge piers by force anti-analysis.The results showed that anti-dimensional numerical analysis results agreeed with the actual occurrence of failure deformation through the observation of the crack of bridge pier, which could provide valuable reference for high fill impact analysis and control.

Key wordshigh fillpier displacementplastic zonetensile stressnumerical analysis