堤防渗透变形类型判别与加固方案比选分析

Discrimination of Levee Seepage Deformation Type and Comparative Analysis of Reinforcement Alternatives

为了提高堤防工程的安全性,通过获取堤防段的地质情况,判定场地存在的变形破坏形式,结果表明堤防破坏形式主要为流土和管涌,存在一定的渗流安全隐患。从工程投资、占地拆迁及现场布置角度进行加固方案比选,拟采用防洪墙和土堤方案。经堤防抗滑和抗渗稳定性验算,加固后堤防安全性满足要求。

In order to improve the safety of levee engineering,the deformation failure types are determined based on analysis of the geological condition of the levee section.The results show that the deformation failure types of the levee are mainly soil flow and piping,that might result in potential seepage.According to the project investment,land occupation,relocation,and site layout,the alternatives for reinforcement are compared and the scheme of flood wall and earth embankment is proposed.After checking calculation of the resistance to sliding and anti-seepage stability of levee,the safety of the reinforced levee meets the requirements.