石马河流域阻水桥梁防洪评价分析

Flood Control Evaluation and Analysis of Water Blocking Bridges in Shima River Basin

石马河流域内樟木头镇现有8座旧桥不能满足防洪要求,需对现有桥梁进行改扩建。该研究以圣罗兰桥为例,从阻水桥梁对石马河流域的壅水、河势影响、堤防稳定和河道冲淤方面的影响进行了系统分析,并根据旧桥阻水严重的情况及工程建设对河道的影响,提出了合理的安全防护措施。

The existing 8 old bridges in Zhangmutou town of the Shima river basin can't meet the flood control requirements,existing bridges need to be renovated and extended.This study takes the Saint Laurent Bridge as an example,based on the analysis of the influence of blocked bridges on the stability of embankments and river erosion and silting in Shima River Basin,reasonable safety protection measures are put forward according to the serious water blocking situation of old Bridges and the influence of engineering construction on river.