上犹县城区堤防工程地质问题及防治对策

Engineering Geological Problems and Prevention Countermeasures of Urban Dike in Shangyou County

以江西省上犹县山区城市堤防工程为例,通过现场钻探与工程地质调查,并运用工程地质分析原理分析了该堤防主要存在软土地基、堤基渗透稳定、崩岸塌坡等工程地质问题,通过工程地质方案比选,软土地基问题建议采用换土垫层法或抛石挤淤法进行处理,堤基渗透稳定问题采用堤内填塘压浸方法进行处理,崩岸塌坡采用干砌石护岸进行处理,对山区城市的堤防工程建设具有一定的借鉴和指导意义。

Taking urban flood control and drainage control project of Shangyou County in Jiangxi Province for an ex- ample, engineering geological analysis principle is adopted to analyze the main engineering geological problems of this pro- ject through on-site drilling and engineering geological survey, which mainly includes soft soil foundation problem, seep- age of dike foundation problem, bank collapse problem. The appropriate control measures are put forward through engi- neering geological scheme comparison. Soft soil foundation problems are suggest to be handled by replacement cushion method or riprap silt extrusion method. Seepage stability of dike foundation problems can be solved by earth-fill and ab- sorption method. Bank collapse problems can be treated by bank protection of paved rock blocks. Thus, this project has some significances for reference and guide of similar construction of levee engineering of mountain cities.