衡重式浆砌块石挡土墙失稳破坏模拟分析  

Simulation Analysis of Instability Failure of Stone Masonry Weight-balanced Retaining Wall

作　　者：宋鑫华[1] 包太 闫鸿浩[1] SONG Xinhua;BAO Tai;YAN Honghao(State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology,Dalian 116024,Liaoning,China;College of Civil Engineering,Guizhou University,Guiyang 550000,China)

机构地区：[1]大连理工大学工业装备结构分析国家重点实验室,辽宁大连116024 [2]贵州大学土木工程学院,贵阳550000

出　　处：《路基工程》2020年第3期127-131,共5页Subgrade Engineering

基　　金：国家自然科学基金项目(10872044,10972051,11672068)。

摘　　要：运用FLAC3D软件对浆砌块石挡土墙进行数值模拟,将其位移云图、剪切应变增量云图、塑性区的分布等进行分析,并与工程实际检测结果进行对照。结果表明:浆砌块石挡土墙边坡可能出现RB模式的倾覆失稳破坏;通过FLAC3D数值模拟得到的结果与突变级数法以及非线性结构可靠度分析得到的结果一致。The numerical simulation of stone masonry retaining wall was carried out with FLAC3D software,and the cloud charts of displacement and shear strain increment,and the plastic zone distribution were analyzed and then compared with the actual testing result of engineering.The result shows that stone masonry retaining wall may be subject to overturning failure in RB mode and sliding failure;and the results of the numerical simulation with FLAC3D is consistent with the results of catastrophe progression method and nonlinear structural reliability analysis.

关 键 词：块石挡土墙 稳定性分析 数值模拟 FLAC3D 失稳破坏 

分 类 号：U417.11[交通运输工程—道路与铁道工程]