【正文】 1 工程概述 ................................................................................................................. 1 沿線地質(zhì)、水文情況 ............................................................................................... 2 第二章 編制原則和規(guī)范 ...................................................................................................... 3 編制原則 ................................................................................................................. 3 編制規(guī)范 ................................................................................................................. 3 第三章工作井設(shè)置 ............................................................................................................... 3 工作井位置 ............................................................................................................. 3 工作井設(shè)計(jì) ............................................................................................................. 4 、頂力計(jì)算 .............................................................................................................. 4 、后背墻反力計(jì)算 .................................................................................................... 5 、工作井護(hù)壁計(jì)算 .................................................................................................... 7 、施工方法 ............................................................................................................. 10 第四章 頂管施工 ................................................................................................................ 12 施工方法 ................................................................................................................ 12 頂管工作井內(nèi)設(shè)備安裝 ......................................................................................... 13 引入測量軸線及水準(zhǔn)點(diǎn) ........................................................................................... 14 下管 ....................................................................................................................... 14 千斤頂和頂鐵的安裝 .............................................................................................. 15 頂進(jìn)施工 ................................................................................................................ 15 頂進(jìn)施工中的重點(diǎn)工序 ......................................................................................... 16 施工流程 ................................................................................................................ 17 施工工藝 ................................................................................................................ 17 降水井井身結(jié)構(gòu) ..................................................................................................... 19 降水井施工 ........................................................................................................... 19 1主要施工方法及技術(shù)要求 ...................................................................................... 20 1降水井監(jiān)測 ........................................................................................................... 20 第五章 施工計(jì)劃 ................................................................................................................ 23 準(zhǔn)備工作 ................................................................................................................ 23 現(xiàn)場平面布置 ......................................................................................................... 23 工作井及施工區(qū)域圍護(hù) ........................................................................................... 23 工期安排 ................................................................................................................ 23 勞動(dòng)力組織 ............................................................................................................ 24 機(jī)械設(shè)備投入 ......................................................................................................... 25 第六章 施工專項(xiàng)措施 ......................................................................................................... 26 監(jiān)測監(jiān)控措施 ......................................................................................................... 26 防路面沉降措施 ..................................................................................................... 27 地面沉降控制技術(shù) .................................................................................................. 27 避免路面沉降控制措施 ........................................................................................... 28 降排水措施 ............................................................................................................ 29 測量與糾偏措施 ..................................................................................................... 29 施工安全用電措施 .................................................................................................. 30 文明施工、環(huán)境保護(hù)措施 ....................................................................................... 31 安全措施、應(yīng)急救援預(yù)案 ....................................................................................... 32 危險(xiǎn)源預(yù)防控制措施 ............................................................................................. 33 1應(yīng)急救援預(yù)案 ....................................................................................................... 35 1 第一章 工程概況 工程情況 工程名稱： 成都市繞城高速路天然氣高壓輸儲(chǔ)氣管道工程 貨運(yùn)立交 項(xiàng)目 工程地點(diǎn)：成都市 貨運(yùn)立交 建設(shè) 單位： 成都城市燃