【正文】 中機(jī)中聯(lián)工程有限公司 8 城市概況 項(xiàng)目區(qū)自然環(huán)境特征 地理位置 豐都縣地處長(zhǎng)江三峽庫(kù)區(qū)腹心地帶，位于東經(jīng) 107186。自成立以來(lái)，該公司發(fā)展十分順利。豐都縣 龍河新城污水管網(wǎng)過(guò)江工程可行性研究報(bào)告 中機(jī)中聯(lián)工程有限公司 I 目 錄 目 錄 ................................................................................................................ I 可行性研究報(bào)告的主要結(jié)論 ............................................................................ 1 編制依據(jù)、原則及范圍 .............................................................................. 2 項(xiàng)目概況 .............................................................................................. 2 項(xiàng)目名稱 ................................................................................... 2 項(xiàng)目地點(diǎn) ................................................................................... 2 業(yè)主概況 .................................................................................. 2 龍河新城區(qū)位關(guān)系 .................................................................... 3 設(shè)計(jì)依據(jù) ........................................................................................... 3 主要依據(jù)資料 .......................................................................... 3 采用的主要規(guī)范及標(biāo)準(zhǔn) ........................................................... 4 設(shè)計(jì)原則 ........................................................................................... 6 編制原則 .................................................................................. 6 設(shè)計(jì)范圍 .................................................................................. 7 城市概況 ...................................................................................................... 8 項(xiàng)目區(qū)自然環(huán)境特征 .......................................................................... 8 地理位置 ................................................................................... 8 氣象條件 ................................................................................... 8 地形地貌 ................................................................................... 9 地質(zhì)特征 .................................................................................. 9 水文 ..........................................................................................11 地震烈度 .................................................................................11 社會(huì)經(jīng)濟(jì)現(xiàn)狀 ................................................................................... 12 豐都縣 龍河新城污水管網(wǎng)過(guò)江工程可行性研究報(bào)告 中機(jī)中聯(lián)工程有限公司 II 供水現(xiàn)狀及規(guī)劃 ................................................................................ 12 供水現(xiàn)狀 ................................................................................ 12 供水規(guī)劃 ................................................................................ 12 排水現(xiàn)狀及規(guī)劃 ............................................................................. 13 排水現(xiàn)狀 ................................................................................ 13 排水規(guī)劃 ................................................................................ 13 工程建設(shè)的必要性 ........................................................................... 13 是完善場(chǎng)鎮(zhèn)污水收集系統(tǒng)的必要措施 .................................. 13 本工程是建設(shè)美好豐都、保障當(dāng)?shù)鼐用裆眢w健康的必然選擇 ......................................................................................................... 14 本工程是維持豐都縣社會(huì)經(jīng)濟(jì)可持續(xù)發(fā)展的需要 .............. 14 本工程是保護(hù)三峽庫(kù)區(qū)水體水質(zhì)和生態(tài)環(huán)境的需要 .......... 15 工程方案 .................................................................................................... 17 工程服務(wù)范圍 ................................................................................. 17 排水體制的選擇 ............................................................................... 17 項(xiàng)目所屬污水處理廠簡(jiǎn)介 ................................................................ 17 水量預(yù)測(cè) ......................................................................................... 18 給水量預(yù)測(cè) ............................................................................ 18 污水量預(yù)測(cè) ............................................................................ 19 設(shè)計(jì)原則及規(guī)模 ............................................................................. 19 設(shè)計(jì)原則 ................................................................................. 19 工程規(guī)模 ................................................................................. 20 污水過(guò)江管道及泵站選址 ............................................................... 20 管道選址定線原則 ................................................................. 20 豐都縣 龍河新城污水管網(wǎng)過(guò)江工程可行性研究報(bào)告 中機(jī)中聯(lián)工程有限公司 III 污水過(guò)江管道方案比選 .......................................................... 22 污水管網(wǎng)及泵站的設(shè)計(jì) ................................................................. 28 水力計(jì)算 ............................................................................................ 34 計(jì)算公式 ................................................................................. 34 主要計(jì)算參數(shù) ......................................................................... 35 水利計(jì)算成果 ......................................................................... 37 管道附屬構(gòu)筑物 ............................................................................. 38 檢查井 .................................................................................... 38 跌水井 .................................................................................... 38 檢修閥門井 ............................................................................. 38 泄水井、排氣井 .................................................................... 39 支墩設(shè)置 ................................................................................. 39 管道防腐 ................................................................................. 39 管基處理 ................................................................................ 41 管溝開挖與回填 .................................................................... 42 頂管施工 ............................