目录1概述...........................................................11.1项目背景...................................................11.2评价依据....................................................21.2.1国家有关法律、法规及有关规定............................21.2.2有关技术规范和技术标准................................41.2.3主要参考资料..........................................41.3评价范围.....................................................41.4评价原则.....................................................51.5技术路线及工作内容..........................................51.5.1技术路线.................................................51.5.2工作内容..............................................72基本情况.....................................................82.1建设项目概况..............................................82.1.1工程概况..............................................82.1.2工程建设规模及防洪标准................................92.1.3主要涉河建筑物........................................112.1.4建设征地情况..........................................142.1.5建设项目施工方案.....................................142.2河道基本概况................................................222.2.1区域概况..........................................222.2.2水文特性............................................232.2.3气象条件..............................................252.2.4河道概况..............................................252.2.5工程地质...............................................262.2.6河流水系...............................................262.2.7地区社会经济........................................27I2.3现有水利工程及其他设施情况..................................273河道演变.....................................................293.1河道历史及近期演变..........................................293.2河道演变趋势分析............................................314防洪评价计算..............................................324.1水文分析计算..............................................324.1.1洪水特性..............................................324.1.2设计洪水分析..........................................324.2库区淤积计算..............................................454.3库区回水计算..............................................465防洪综合评价..............................................485.1与现有有关水利规划的关系与影响分析..........................485.2与现有防洪防凌标准、有关技术和管理要求的适应性分析.........485.2.1与防洪标准的适应性分析................................485.2.2与防凌标准的适应性分析.................................495.3对行洪安全的影响分析.......................................495.3.1运行期对行洪安全的影响分析............................495.3.2施工期对行洪安全的影响分析............................505.4对河势稳定的影响分析........................................505.4.1河道分流比影响.........................................505.4.2主流线的变化情况......................................515.4.3河道冲淤对河势稳定的影响...............................515.4.4主要地质问题对河势稳定的影响...........................525.5对水资源的影响分析........................................525.5.1取水许可............................................525.5.2对水质的影响分析......................................525.6对现有水利工程的影响分析....................................545.6.1对上游故县水库的影响.........
