【正文】 ........................14 土料區(qū) .....................................................................................................................................14 結(jié) 論 ...................................................................................................................................................14 第 4 章 工程任務(wù)及規(guī)模 ............................................................................................ 16 地區(qū)社會(huì)經(jīng)濟(jì)發(fā)展概況 ................................................................................................................16 除險(xiǎn)加固工程任務(wù) .........................................................................................................................17 水庫(kù)洪水調(diào)節(jié)計(jì)算和特征水位 .................................................................................................18 防洪標(biāo)準(zhǔn)和調(diào)洪運(yùn)用方式 ...............................................................................................18 基本資料 ................................................................................................................................18 調(diào)洪計(jì)算及成果分析 ........................................................................................................20 加固后壩頂高程復(fù)核 .............................................................................................................21 施工洪水調(diào)節(jié)計(jì)算和特征水位 ....................................................................................................23 施工洪水標(biāo)準(zhǔn)及導(dǎo)流方式 ...............................................................................................23 施工圍堰水位 ......................................................................................................................23 第 5 章 除險(xiǎn)加固工程設(shè)計(jì) ........................................................................................ 24 工程等 級(jí)和設(shè)計(jì)標(biāo)準(zhǔn) ....................................................................................................................24 設(shè)計(jì)依據(jù) ............................................................................................................................................24 除險(xiǎn)加固工程總體布置 ................................................................................................................25 大壩除險(xiǎn)加固設(shè)計(jì) .........................................................................................................................25 壩 體及心墻防滲加固設(shè)計(jì) ...............................................................................................25 壩頂加固 ................................................................................................................................27 護(hù)坡和壩面排水系統(tǒng) ..........................................................................................................27 白蟻防治處理 ........................................................................................................................28 觀測(cè)設(shè)施工程 .........................................................................................................................29 上壩道路工程 .........................................................................................................................29 大壩加固設(shè)計(jì)計(jì)算 .........................................................................................................................29 滲流計(jì)算 ................................................................................................................................29 穩(wěn)定計(jì)算 ..................................................................................................................................33 溢洪道加固工程 .................................................................................................................................38 工程現(xiàn)狀及存在問(wèn)題 ...........................................................................................................38 溢洪道加固設(shè)計(jì) .....................................................................................................................38 加固計(jì)算 ...................................................................................................................................39 溢洪道邊墻穩(wěn)定計(jì)算 ..........................................................................................................45 輸水洞工程 ...........................................................................................................................................51 工程現(xiàn)狀 ...................................................................................................................................51 加固設(shè)計(jì)工程 ..........................................................................................................................51 第 6 章 施工組織設(shè)計(jì) ................................................................................................. 52 施工條件 ...............................................................................................................................................52 工程條件 ...................................................................................................................................52 自然條 件 ...................................................................................................................................52 圍堰及施工導(dǎo)流 .................................................................................................................................53 料場(chǎng)的選擇 ...........................................................................................................................................53 土料 .............................................................................................................................................53 砂、石料、水泥 .....................................................................................................................53 主體工程施工 ......................................................................................................................................53 土方施工 ........