新沂河险工险段成因和治理措施

作为控制洪水建筑物,堤防因所处环境恶劣,极易产生险工、险段.针对新沂河堤防的险工、险段问题,收集了相关的地质、水文资料.结合现场调查,系统分析新沂河险工成因,提出了不同险工的治理措施.结果表明:1)汛期水位骤升骤降是新沂河形成险工、险段的重要外因,堤基透水性较强、土质不均是形成险工险段的重要内因;2)按照险工成因,新沂...

Causes and control measures for dangerous sections of the Xinyi River

As a flood control building,the embankment can easily lead to dangerous sections due to the harsh surrounding environment.In view of the dangerous sections of the Xinyi River embankment,relevant geological and hydrological data are collected.In combination with on-site investigations,the causes of the dangerous sections of the Xinyi River are systematically analyzed,and control measures for different dangerous sections are proposed.The results show that:1)The sudden rise and fall of water level in the flood season is the important external cause for the dangerous sections of the Xinyi River,and the strong permeability of the embankment foundation and the uneven soil quality are the important internal causes.2)According to these causes,the dangerous sections of the Xinyi River can be divided into three types.3)Different control measures are proposed in light of different types of dangerous sections,and the correctness of the control plan is demonstrated by the Shawan dangerous section.