【正文】 .............. 9 自然條件 ....................................................................................................... 9 交通 ................................................................................................................ 9 基礎(chǔ)設(shè)施 ...................................................................................................... 10 工業(yè)、農(nóng)業(yè)經(jīng)濟(jì) .......................................................................................... 10 旅游資源 ...................................................................................................... 10 供水現(xiàn)狀及存在的主要問(wèn)題 ................................................................. 10 農(nóng)村人口飲水的不安全成因 ...................................................................... 10 供水現(xiàn)狀及存在的問(wèn)題 .............................................................................. 13 項(xiàng)目建設(shè)的必要性 ................................................................................... 13 是社會(huì)發(fā)展規(guī)律的必然要求 ..................................................................... 13 是廣大群眾的迫切要求 ............................................................................. 13 是解決項(xiàng)目區(qū)人畜飲水安全的要求 ......................................................... 13 項(xiàng)目區(qū)供水規(guī)劃及供水范圍 ................................................................. 14 第三章 工程建設(shè)條件 ............................................................................................... 16 區(qū)域水資源概況 ......................................................................................... 16 地質(zhì)情況 ....................................................................................................... 16 建筑材料 ....................................................................................................... 17 對(duì)外交通、通訊情況 ................................................................................ 17 群眾參與情況 .............................................................................................. 17 第四章 設(shè)計(jì)依據(jù)和原則 ........................................................................................... 18 設(shè)計(jì)依據(jù) ....................................................................................................... 18 有關(guān)文件 ...................................................................................................... 18 基礎(chǔ)數(shù)據(jù)、文件 .......................................................................................... 18 采用的主要規(guī)范、標(biāo)準(zhǔn) .............................................................................. 19 設(shè)計(jì)原則 ....................................................................................................... 19 第五章 工程規(guī)模 ....................................................................................................... 21 供水范圍、供水對(duì)象及設(shè)計(jì)水平年 .................................................. 21 供水范圍及對(duì)象 ......................................................................................... 21 設(shè)計(jì)水平年 ................................................................................................. 21 需水量預(yù)測(cè) ................................................................................................. 21 仁壽縣 視高 水廠 至興盛鄉(xiāng)管網(wǎng)延伸工程 初步設(shè)計(jì) 2 用水量標(biāo)準(zhǔn) ................................................................................................. 21 水質(zhì)標(biāo)準(zhǔn) ..................................................................................................... 21 水壓標(biāo)準(zhǔn) ..................................................................................................... 22 用水量計(jì)算 .................................................................................................. 22 農(nóng)村居民用水量 ...................................................................................... 22 總用水量 .................................................................................................. 23 供水規(guī)模的確定 ........................................................................................ 23 第六章 水源選擇 ....................................................................................................... 24 水源選擇的原則和要求 ........................................................................... 24 水源選擇的要求 ........................................................................................ 24 水源論證 ...................................................................................................... 24 視高水廠概況 ............................................................................................. 24 視高水廠水源 ............................................................................................. 25 水源的確定 ................................................................................................. 25 第七章 工程總體布置 ............................................................................................... 26 總體布置原則 ............................................................................................. 26 工程總體方案 ............................................................................................. 26 輸水線路及管材選擇 ............................................................................... 26 輸水線路 ..................................................................................................... 26 管材選擇 ..................................................................................................... 26 第八章 工程設(shè)計(jì) ....................................................................................................... 31 工程等級(jí)、類(lèi)型及設(shè)計(jì)標(biāo)準(zhǔn) ................................................................. 31 配水管網(wǎng)工程設(shè)計(jì) .................................................................................... 31 計(jì)算標(biāo)準(zhǔn) ..................................................................................................... 31 輸水管節(jié)點(diǎn)計(jì)算 ......................................................................................... 32 輸水管水力計(jì)算 ......................................................................................... 32 輸水管起終點(diǎn)設(shè)計(jì) ....................