高边墩预应力钢筋混凝土坞式闸室三维数值仿真分析

为分析研究高边墩预应力钢筋混凝土坞式闸室结构的受力性能和计算方法,以安徽省颍上船闸工程为例,采用三维空间有限元模型,模拟墙后回填施工过程,计算作用于闸墙后的土压力荷载。由此进一步分析结构的变形和应力分布。对比分析有限元计算结果与实测值可以得出,计算值与实测值接近且趋势吻合。研究表明,当合理考虑土体和闸室的相互作用,并精确模拟回填施工过程,通过三维空间有限元可有效分析预应力闸室结构的受力性能。

Three-dimensional numerical simulation analysis of high-side pier prestressed concrete dock-type chamber

In order to analyze the force performance and calculation method of the high-side pier prestressed concrete dock-type chamber,the Yingshang lock project was taking as an example in this paper.Based on the three-dimensional finite element model,the wall backfill construction process was simulated accurately,and the soil pressure load acting on the lock wall was calculated.Then the structure deformation and stress distribution were further analyzed.A comparative analysis of finite element results and measured values shows that the two values are close and have the same trend.The results also show that the force performance of the prestressed concrete chamber structure can be effectively analyzed through three-dimensional finite element model while considering the interaction of soil and the chamber and simulating the wall backfill construction process.