摘要
以某连续反拱底板形式的病险水闸为例,采用三维有限元法对病险水闸整治工程中的施工加固方案进行比选,建立以地基、底板和闸墩作为整体结构的三维有限元模型,采用参数反分析法反演未知的地基变形模量,计算分析了全孔围护、半孔围护和连续三孔围护三种施工加固方案对水闸结构内力的影响。研究表明,采用三维有限元法可直观、准确的反映出水闸结构在施工过程中的应力变形情况,计算成果为经济有效的选取施工加固方案提供了参考依据。
Taking a defective sluice with continuous reverse arch floor as an example, the three dimensional finite element model is established to analyze and select the reinforcement scheme, in which, the foundation, floor and pier are integrated as a whole structure and the parametric inversion analysis is used to obtain unknown deformation modulus of foundation. The influences of three reinforcement schemes of full hole enclosure, half hole enclosure and continuous three holes enclosure on internal force of sluice structure are calculated and analyzed. The research shows that the three dimensional finite element method can visually and accurately reflect stress and displacement of sluice structure in the construction process. The calculation results provide a reference for selecting economic and effective construction reinforcement scheme.
出处
《水力发电》
北大核心
2015年第3期41-44,共4页
Water Power
关键词
病险水闸
参数反分析
变形模量
施工加固
连续反拱底板
三维有限元
应力变形分析
defective sluice
parametric inversion analysis
deformation modulus
construction reinforcement
continuous reverse arch floor
three dimensional finite element
displacement and stress analysis
