九里河姚巷荡排涝站段堤防应急除险加固工程处理

Treatment of emergency relief and reinforcement engineering for the embankment of the Yaoxiangtang drainage station in Jiulihe River

针对九里河姚巷荡排涝站段堤防出现背水侧坡脚饱和湿润、局部堤身存在渗漏异常等重要问题,采取工程测量、工程勘察及地质雷达探测等前期工作,根据基础资料结果分析渗漏原因,结合现状排涝站和堤防防洪安全要求,采用高压旋喷桩防渗墙加固方案,并进行稳定复核计算和工程检测验证。结果表明:此除险加固方案满足堤防渗流安全、抗滑安全等相关规范要求,为堤防应急除险加固设计提供思路和技术指导。

In response to important issues such as saturated moisture at the foot of the embankment at the Yaoxiangtang drainage station in Jiulihe River and abnormal leakage in local embankments,preliminary work such as engineering measurement,engineering survey and geological radar detection were carried out.Based on the results of basic data,the reasons for leakage were analyzed.In combination with the current flood control safety requirements of the drainage station and embankment,a high-pressure rotary jet grouting pile anti-seepage wall reinforcement plan was adopted,and stability review calculations and engineering testing verification were carried out.The results indicate that this reinforcement plan meets the requirements of relevant regulations such as seepage safety and anti slip safety of embankments,providing ideas and technical guidance for emergency reinforcement design of embankments.