摘要
通过结合邵伯三线船闸实测数据,利用有限元软件分析了扶壁式闸墙从原土基开挖到蓄水调试各个阶段地基沉降及闸墙倾斜趋势,并分析了闸室灌泄水过程中墙底水压及土应力之和的变化趋势及闸墙墙顶水平向位移变化。经分析得出在蓄水调试过程中闸室墙沉降出现回弹现象,并且沉降已经趋于稳定。在闸室墙浇筑过程中闸室墙向闸室侧倾斜,在墙后填土回填及蓄水调节后闸墙向填土侧倾斜,且倾斜在后期趋于稳定。闸室倾斜主要影响因素为前后趾不均匀沉降。
This paper analyzes the foundation settlement and tilting trend of buttressed chamber wall from the soil base excavation to the impound debug at each stage by the finite element software based on the practical measured date of Shaobo Third-line ship lock engineering.This paper also analyzes the variation trend of the sum of water pressure and earth stress at the bottom of chamber wall,and the horizontal displacement variation at the top of chamber wall in the process of water filling and draining of lock chamber.After the analysis,the result shows that the settlement of chamber wall appears to rebound and has become stable in the process of impound debug.The chamber wall is tilted to the side of lock chamber in the process of casting chamber wall.The chamber wall is tilted to the filling side after the filling backfill and impound debug,and the tilting tends to be stable in the late.The main influence factor on the tilting of chamber wall is the uneven settlement of the chamber wall.
出处
《城市道桥与防洪》
2018年第4期103-106,115,共5页
Urban Roads Bridges & Flood Control
关键词
扶壁式闸室墙
地基沉降
闸室倾斜
灌泄水
buttressed chamber wall
foundation settlement
tilting of lock chamber
filling and draining
