悬挑板路基的计算分析  

Calculation and Analysis of Cantilever Plate Subgrade

作　　者：魏业清 李欢[2] 聂午龙 WEI Yeqing;LI Huan;NIE Wulong(Yunnan Traffic Consulting Co.,Ltd.,Kunming 650000,China;Yunnan Agricultural University,Kunming 650201,China)

机构地区：[1]云南交通咨询有限公司,昆明650000 [2]云南农业大学,昆明650201

出　　处：《路基工程》2020年第4期184-188,共5页Subgrade Engineering

摘　　要：在地质条件较好的山区道路拓宽改建工程中,用悬挑板结构能有效地避免高填深挖路基,保护生态环境。为保证悬挑板路基的结构安全稳定,结合某山区道路的扩宽改建工程,运用有限元数值分析软件,计算不同宽度的悬挑板结构的应力和位移,得出了结构的受力薄弱点,并依据计算结果提出了合适的悬挑板结构尺寸。In the widening and reconstruction of mountain highway with good geological conditions,the use of cantilever plate structure may effectively bypass high-fill deep-excavation subgrade and protect ecological environment.For the purpose of ensuring safety and stability of this structure,based on the widening and reconstruction of a mountain highway,the stress and displacement of the cantilever plate structure in different width were calculated with finite element numerical analysis software,and then the weak spots thereof were found out.Depending on this result,the proper size of cantilever plate structure was proposed.

关 键 词：山区公路 拓宽改建工程 悬挑板 位移 应力 

分 类 号：U416.05[交通运输工程—道路与铁道工程]