【正文】 項(xiàng)目 建議書 乍得 恩賈梅納及其他城市供水項(xiàng)目 乍得共和國 CGGC International 恩賈梅納 （ N39。Djamena） 及其他城市 供水項(xiàng)目 項(xiàng) 目 建 議 書 CGGC International 20201215項(xiàng)目 建議書 乍得 恩賈梅納及其他城市供水項(xiàng)目 乍得共和國 CGGC International 1 目 錄 前言 ..........................................................................................................4 用水現(xiàn)狀和供水對象基本情況 ..........................................................8 工程建設(shè)的必要性和自然條件 ..........................................................8 工程建設(shè)的必要性 .................................................................................................... 8 工程建設(shè)的任務(wù)及規(guī)模 .....................................................................9 項(xiàng)目建設(shè)的任務(wù) ........................................................................................................ 9 項(xiàng)目建設(shè)規(guī)模 ............................................................................................................ 9 用水量預(yù)測 ................................................................................................... 9 預(yù)測方法 ........................................................................................................ 9 設(shè)計(jì)標(biāo)準(zhǔn) ................................................................................................................ 11 、水質(zhì)標(biāo)準(zhǔn)： ................................................................................................11 、水壓標(biāo)準(zhǔn)： ............................................................................................... 18 工程設(shè)計(jì)方案 ................................................................................... 19 取水部分設(shè)計(jì) .......................................................................................................... 19 管井構(gòu)造 ...................................................................................................... 19 管井布置 ...................................................................................................... 19 水廠設(shè)計(jì)方案 .......................................................................................................... 19 廠址選擇 ................................................................................................. 19 凈水工藝選擇 ............................................................................................ 20 工藝形式選擇 ............................................................................................ 20 混合方式 .................................................. 20 過濾形式 .................................................. 21 消毒 .......................................................... 24 管材選擇 ................................................................................................... 26 水廠設(shè)計(jì) ................................................................................................................ 28 凈水工程 ................................................................................................... 28 CGGC International 2 混合 .......................................................... 28 重力式無閥濾池 ...................................... 28 清水池 ...................................................... 28 提升泵房 .................................................. 28 加藥間 ...................................................... 28 廠區(qū)排水 .................................................. 29 輔助建筑物 ............................................... 29 廠區(qū)布置 ................................................................................................... 29 水廠平面布置 ........................................... 29 水廠豎向設(shè)計(jì) ........................................... 30 輸水管道敷設(shè) ............................................... 30 建筑、綠化及結(jié)構(gòu)設(shè)計(jì) ........................................................................................ 30 建筑設(shè)計(jì) ................................................................................................. 31 建筑造型 .................................................. 31 建筑裝修 .................................................. 31 綠化設(shè)計(jì) ................................................................................................. 32 設(shè)計(jì)原則 ................................................. 32 綠化布置與樹種 ...................................... 32 結(jié)構(gòu)設(shè)計(jì) .............................................................................................................. 32 構(gòu)筑物結(jié)構(gòu)設(shè)計(jì) .