【正文】 干流防洪工程可行性研究報(bào)告1干流防洪工程可行性研究報(bào)告干流防洪工程可行性研究報(bào)告2目 錄1 綜合說明 ...............................................................................................................................................................1 概況 ...............................................................................................................................................................1 水文 ...............................................................................................................................................................2 地質(zhì) ...............................................................................................................................................................6 工程建設(shè)任務(wù)和規(guī)模 ...................................................................................................................................8 工程布置及主要建筑物 .............................................................................................................................10 工程施工 .....................................................................................................................................................10 工程管理 .....................................................................................................................................................12 工程占地 .....................................................................................................................................................13 環(huán)境影響評(píng)價(jià) .............................................................................................................................................13 水土保持 ...................................................................................................................................................14 投資估算 ...................................................................................................................................................15 經(jīng)濟(jì)評(píng)價(jià)和綜合評(píng)價(jià) ...............................................................................................................................15 氣象水文 .....................................................................................................................................................17 水文基本資料 .............................................................................................................................................18 暴雨洪水特征 .............................................................................................................................................19 洪水地區(qū)組成及干支流洪水遭遇分析 .....................................................................................................21 調(diào)查歷史洪水及重限期的確定 .................................................................................................................26 天然洪水分析計(jì)算 .....................................................................................................................................27 設(shè)計(jì)洪水 .....................................................................................................................................................49干流防洪工程可行性研究報(bào)告3 施工設(shè)計(jì)洪水 .............................................................................................................................................59 泥沙 ...........................................................................................................................................................613 工程地質(zhì) .............................................................................................................................................................64 區(qū)域地質(zhì)概況 .............................................................................................................................................64 商州段堤防工程地質(zhì)條件與評(píng)價(jià) .............................................................................................................75 丹鳳段堤防工程地質(zhì)條件分析與評(píng)價(jià) .....................................................................................................79 商南段堤防工程地質(zhì)條件分析與評(píng)價(jià) .....................................................................................................83 天然建筑材料 .............................................................................................................................................87 結(jié)論與建議 .................................................................................................................................................894 工程任務(wù)和規(guī)模 .................................................................................................................................................91 社會(huì)經(jīng)濟(jì)發(fā)展?fàn)顩r及工程建設(shè)的必要性 .................................................................................................91 社會(huì)經(jīng)濟(jì)發(fā)展對(duì)防洪的要求 ...................................................................................................................103 設(shè)計(jì)水平年、防洪工程范圍及防洪標(biāo)準(zhǔn) ...............................................................................................104 防洪工程總體方案 ...................................................................................................................................107 堤線布置及水面線推求 ...........................................................................................................................1165 工程總布置及主要建筑物 ...............................................................................................................................124 工程等別和標(biāo)準(zhǔn) .......................................................................................................................................124 工程布置和主要建筑物型式 ...................................................................................................................125 堤防工程 ...................................................................................................................................................1266 工程管理 .......................................................................................................................