0汶川县映秀镇集镇供水新增水源点建设项目初步设10计报告二〇一六年四月12目录1、综合说明...................................................................................................12项目区概况及项目建设的必要性.............................................................42.1项目建设内容.............................................................................42.2项目目标.....................................................................................42.3建设条件.....................................................................................52.4项目总投资..................................................................................52.5城市介绍......................................................................................52.6.1国道改建影响.........................................................................62.6.2水质不达标..............................................................................62.6.3水源保证率..............................................................................72.6.4危害.........................................................................................72.6.5工程建设的必要性.................................................................74、工程建设条件...........................................................................................84.1项目区自然条件...............................................................................84.2区域水资源条件...............................................................................84.3工程地质............................................................................................94.4建材及设备供应................................................................................94.5其它条件...........................................................................................95、设计原则及规模.......................................................................................95.1设计依据............................................................................................9325.2设计原则.........................................................................................105.3设计参数..........................................................................................115.4设计规模.........................................................................................126水源选择...................................................................................................126.1水源选择原则.......................................................................................126.2水源确定.........................................................................................137工程总体布置...........................................................................................137.1设计依据.........................................................................................137.2设计原则.......................................................................................147.3工程等级、类型和设计标准.........................................................147.4工程总体原则.................................................................................158工程设计...................................................................................................178.2取水坝设计.........................................................
