【正文】 ............................................................................... 26 洪水災(zāi)害情況 ............................................................................................... 26 山洪現(xiàn)狀及成因 ............................................................................................ 27 存在的問(wèn)題及防災(zāi)能力評(píng)價(jià) .......................................................................... 32 建設(shè)的必要性 ............................................................................................... 32 治理原則、標(biāo)準(zhǔn)及范圍 ................................................................................. 33 主要建設(shè)內(nèi)容 ............................................................................................... 33 設(shè)計(jì)洪水位 ................................................................................................... 35 5 河道工程設(shè)計(jì) .......................................................................................................... 38 設(shè)計(jì)標(biāo)準(zhǔn)和依據(jù) ............................................................................................ 38 河道疏浚工程 ............................................................................................... 39 堤岸防護(hù)工程 ............................................................................................... 42 跨河建筑物設(shè)計(jì) ............................................................................................ 53 主要工程量 ................................................................................................... 58 6 施工組織設(shè)計(jì) .......................................................................................................... 59 施工條件 ...................................................................................................... 59 天然建筑材料 ............................................................................................... 61 施工導(dǎo)流 ...................................................................................................... 62 主體工程施工 ............................................................................................... 63 施工交通 ...................................................................................................... 68 施工工廠 ...................................................................................................... 68 施工總布置 ................................................................................................... 69 施工總進(jìn)度 ................................................................................................... 71 7 土地征用與移民安置 ............................................................................................... 74 工程征地 ...................................................................................................... 74 拆遷實(shí)物指標(biāo) ............................................................................................... 75 移民安置 ...................................................................................................... 75 征地及移民投資 ............................................................................................ 75 8 環(huán)境保護(hù)設(shè)計(jì) .......................................................................................................... 77 設(shè)計(jì)依據(jù)及標(biāo)準(zhǔn) ............................................................................................ 77 環(huán)境現(xiàn)狀及環(huán)境保護(hù)對(duì)象 .............................................................................. 77 施工期環(huán)境影響分析 ..................................................................................... 79 環(huán)境影響評(píng)價(jià) ............................................................................................... 80 環(huán)境保護(hù)設(shè)計(jì) ............................................................................................... 81 環(huán)境監(jiān)測(cè) ...................................................................................................... 83 環(huán)境管理 ...................................................................................................... 83 環(huán)保投資 ...................................................................................................... 84 9 水土保持設(shè)計(jì) .......................................................................................................... 86 設(shè)計(jì)依據(jù) ...................................................................................................... 86 項(xiàng)目區(qū)水土流失現(xiàn)狀 ..................................................................................... 87 水土流失預(yù)測(cè) ............................................................................................... 87 水土保持總體布局 ........................................................................................ 92 水土保持防治措施及工程量 .......................................................................... 94 水土保持監(jiān)測(cè) ............................................................................................... 95 水保投資 ...................................................................................................... 96 10 工程管理設(shè)計(jì) .......................................................................................................... 98 管理體制及機(jī)構(gòu)設(shè)置 ..................................................................................... 98 管理設(shè)施 .................................................................................................... 100 管理范圍和任務(wù) .......................................................................................... 101 工程調(diào)度原則和管理經(jīng)費(fèi) ............................................................................ 101 11 投資概算 ............................................................................................................... 103 工程概況 .................................................................................................... 103 編制原則及依據(jù) .......................................................................................... 103 概算編制 .................................................................................................... 105 12 經(jīng)濟(jì)評(píng)價(jià) ..............................................................