【正文】 和連通管管徑及連通管根數(shù)，應(yīng)按輸水干管任何一段發(fā)生保障時(shí)仍能通過(guò)事故用水 量計(jì)算確定。當(dāng)長(zhǎng)距離輸水時(shí)，輸水管渠的設(shè)計(jì)流量應(yīng)計(jì)入管渠漏失水量。考慮以上要求，對(duì)該市進(jìn)行管網(wǎng)定線，為供水安全，采用環(huán)狀網(wǎng)。連接管間距一般在 800～ 1000m 之間。干管延伸方向應(yīng)和二級(jí)泵站輸水到大用戶(hù)的水流方向一致，順?biāo)鞣较颍宰疃痰木嚯x布置數(shù)條干管，干管從用水量較大的街區(qū)通過(guò)。吉林化工學(xué)院給水排水工程 10 級(jí)管道工程課程設(shè)計(jì) 1 目 錄 第Ⅰ部分 給水管網(wǎng)設(shè)計(jì) ................................................................................................... 1 第 1 章 工程概況 ...................................................................................................... 1 設(shè)計(jì)依據(jù)、原則、任務(wù)、要求 ............................................................................ 1 設(shè)計(jì)題目 ................................................................................................. 1 設(shè)計(jì)依據(jù) ................................................................................................. 1 設(shè)計(jì)編制原則 .......................................................................................... 1 設(shè)計(jì)任務(wù) ................................................................................................. 3 設(shè)計(jì)要求： .............................................................................................. 3 設(shè)計(jì)原始資料： ............................................................................................ 3 第 2 章 設(shè)計(jì)用水量計(jì)算 ............................................................................................ 5 用水量定額 ......................................................................................................... 5 設(shè)計(jì)用水量 ......................................................................................................... 6 第 3 章 管網(wǎng)定線及水力計(jì)算 ..................................................................................... 9 管網(wǎng)的布置形式 .................................................................................................. 9 給水管網(wǎng)布置的要求 ................................................................................ 9 給水管網(wǎng)布置的形式： ............................................................................. 9 方案的比較 .............................................................................................. 9 管網(wǎng)定線 .......................................................................................................... 10 沿線流量的計(jì)算 ................................................................................................ 10 比流量的計(jì)算 ......................................................................................... 10 沿線流量的計(jì)算 ......................................................................................11 節(jié)點(diǎn)流量的計(jì)算 .................................................................................................11 管段初分流量 ................................................................................................... 12 計(jì)算水頭損失 ................................................................................................... 13 管網(wǎng)平差 .......................................................................................................... 13 第Ⅱ部分 排水部分 ........................................................................................................ 15 第 4 章 工程概況 .................................................................................................... 15 設(shè)計(jì)依據(jù)、原則、任務(wù)、要求 .......................................................................... 15 設(shè)計(jì)題目 ............................................................................................... 15 設(shè)計(jì)依據(jù) ............................................................................................... 15 設(shè)計(jì)編制原則 ........................................................................................ 15 設(shè)計(jì)任務(wù) ............................................................................................... 16 設(shè)計(jì)要求： ............................................................................................ 16 設(shè)計(jì)資料 .......................................................................................................... 16 原始資料 ............................................................................................... 16 氣象水文資料 ........................................................................................ 17 第 5 章 城市排水體制的確定 ................................................................................... 18 設(shè)計(jì)資料的調(diào) 查 ............................................................................................... 18 方案一：分流制 ............................................................................................... 18 分流制的定義 ........................................................................................ 18 分流制的優(yōu)缺點(diǎn) ..................................................................................... 18 方案二：合流制 ............................................................................................... 19 吉林化工學(xué)院給水排水工程 10 級(jí)管道工程課程設(shè)計(jì) 2 合流制的定義 ........................................................................................ 19 合流制的優(yōu)缺點(diǎn) ..................................................................................... 19 方案確定原則 ................................................................................................... 19 選擇排水體制的要求 ........................................................................................ 19 方案確定 .......................................................................................................... 20 第 6 章 污水管道的設(shè)計(jì) .......................................................................................... 21 確定排水區(qū)界及劃分排水流域 .......................................................................... 21 排水管道定線 ................................................................................................... 21 排水管道定線原則 ................................................................................. 21 定線的影響因素 ..................................................................................... 21 定線方案比較 ......................................