施工方法对整体式闸室墙后土压力的影响分析

Simulation and Analysis for Influence of Construction Process on Whole Lock Chamber Structure

为研究施工方法对闸室墙后土压力分布的影响,以江苏某船闸工程为背景,采用非线性有限元方法模拟施工过程,土体采用D-P模型,在闸墙与回填土之间、闸底板与地基土之间设置接触单元,模拟接触面滑移特性,得到了不同施工方法的闸室墙后土压力分布,并与船闸规范推荐的计算方法进行比较。研究成果可供船闸设计施工参考。

In order to study the influence of construction method on soil pressure distribution, the non-linear FEM is used to simulate the construction process in the context of a ship lock project in Jiangsu. the D - P model is adopted for soil and the contact elements are set between the lock wall and backfill soil and between the lock bottom board and foundation soil so as to simulate the slip characteristics between the above-mentioned interfaces. The soil pressure distribution for different construction method is obtained, and the analysis method is compared with the calculation method commended by lock design code. The research can provide references for the design and construction of a ship lock.