【正文】 .................................................20 歷史洪水 ..............................................................................................................................................20 設(shè)計洪水 ..............................................................................................................................................20 施工洪水 ..............................................................................................................................................23 泥沙 ........................................................................................... 24 控制斷面水位流量關(guān)系曲線 ...................................................... 24 3 工程地質(zhì) ........................................... 26 區(qū)域地質(zhì) .................................................................................. 26 區(qū)域地質(zhì)概況 ..................................................................................................................................26 治理河段工程地質(zhì) ..................................................................... 28 治理河段工程地質(zhì)條件 ....................................................................................................................28 治理河段工程地質(zhì) .........................................................................................................................30 堤防工程地質(zhì)評價和建議 ........................................................ 31 其他建筑物工程地質(zhì) ............................................................... 33 天然建筑材料 ........................................................................... 33 4 工程任務(wù)和規(guī)模 .................................... 35 自然及社會經(jīng)濟情況和防洪治理要求 ....................................... 35 自然及 社會經(jīng)濟情況 .......................................................................................................................35 防洪保護對象的洪水災(zāi)害情況及成因 ........................................................................................35 防洪治理的必要性 .............................................................................................................................35 劍河縣屯州防洪堤工程 實施方案報告書 III 防洪治理任務(wù) 及要求 ........................................................................................................................36 防洪治理河道與堤防工程 .......................................................... 36 河道、堤防狀況及存在的主要問題 ..............................................................................................36 河道、堤防防洪標準、 線路布置及堤距選擇 ............................................................................39 河道與堤防縱橫斷面 ........................................................................................................................40 河道清障規(guī)劃 ......................................................................................................................................40 治理河段設(shè)計水面線 ........................................................................................................................40 堤頂高程 ..............................................................................................................................................43 5 工程布置及建筑物 ................................... 46 工程等別和洪水標準 ................................................................. 46 設(shè)計基本資料 ............................................................................. 46 主要技術(shù)規(guī)范 ......................................................................................................................................46 設(shè)計采用參數(shù) ....................................................................................................................................46 工程布置及河道整治建筑物 ...................................................... 48 工程布置及相關(guān)建筑物設(shè)計 ...........................................................................................................48 防洪墻穩(wěn)定、應(yīng)力計算 ....................................................................................................................49 建筑物項目及工程量 ................................................................. 52 建筑物項目 .........................................................................................................................................52 主要工程量 .........................................................................................................................................52 6 施工組織設(shè)計 ...................................... 53 施工條件 .................................................................................... 53 工程概述 ..............................................................................................................................................53 施工總體布置 ............................................................................. 54 施工道路布置 ......................................................................................................................................54 施工供風 ..............................................................................................................................................54 施工供水 ..............................................................................................................................................54 施工供電 ..............................................................................................................................................54 混凝土生產(chǎn)設(shè)施 .................................................................................................................................54 施工導流 .................................................................................... 55 導流標準 ..............................................................................................................................................55 導流方式 ..............................................................................................................................................55 劍河縣屯州防洪堤工程