城市河道生态护岸稳定分析及应用

Stability analysis and application of ecological revetment in urban river

生态护岸设计对城市可持续发展起着至关重要的作用。基于城市河道护岸需注意事项,研究总结常见护岸结构及其适用条件,结合太平巷河道整治工程特点,选用浆砌石挡墙结构,分别采用刚体极限法和强度折减法进行岸坡稳定分析,同时计算该河道行船条件。综合分析知:不同计算工况下,采用刚体极限法计算所得安全系数均比强度折减法计算所得较小,偏于安全;本工程选用护岸结构合理。可为其他类似城市河道护岸设计提供参考依据。

Ecological revetment design plays a vital role in the sustainable urban development.Based on the urban river bank protection considerations,the common bank protection structures and their applicable conditions were summarized.Combining with the characteristics of Taipingxiang river regulation works,marsonary retaining wall structure was selected.The rigid body limit equilibrium method and strength reduction method were respectively used in the bank stability analysis,and the river boat condition was calculated at the same time.According to the comprehensive analysis,the safety factor calculated by rigid body limit equilibrium method was more safe and smaller than by strength reduction method under different calculation conditions.It could provide reference for other similar urban river bank revetment design.