【正文】 昌市城市次干道，是城市東西走向的重要道路，但由于南昌火車站將此路分為兩段，未能連通，對(duì)城市交通影響很大。 (2)、從現(xiàn)場(chǎng)調(diào)查、采集、咨詢所獲取的有關(guān)資料。南昌市 洛 陽(yáng)路下穿鐵路 框架 橋工程 框架預(yù)制及頂進(jìn)方案 中鐵二十四局集團(tuán)有限公司 1 目 錄 一、編制說明 ...................................................................................................................................................3 二、編制依據(jù) ......................................................................................................................................................3 三、工程概況 ......................................................................................................................................................3 四、工程難點(diǎn) ......................................................................................................................................................4 五、 施工目標(biāo)及總體部署 ..................................................................................................................................4 施工目標(biāo) .................................................................................................................................................4 質(zhì)量目標(biāo) .......................................................................................................................................4 工期目標(biāo) .......................................................................................................................................4 安全目標(biāo) .......................................................................................................................................4 總體部署 .................................................................................................................................................5 總體頂進(jìn)方案 ..............................................................................................................................5 施工區(qū)段劃分 ..............................................................................................................................5 主要施工步驟 ..............................................................................................................................6 六、各主要分部分項(xiàng)工程施工技術(shù)方案 .........................................................................................................7 地表水及地下水排除措施 .....................................................................................................................7 框架預(yù)制 ..................................................................................................................................................8 箱身預(yù)制工藝流程 ......................................................................................................................8 模板、鋼筋安裝 ..........................................................................................................................9 砼澆筑 ........................................................................................................................................ 12 預(yù)埋件設(shè)置 ............................................................................................................................... 12 大體積砼裂縫控制措施 ........................................................................................................... 13 ............................................................................................................................................... 14 ....................................................................................................................................... 15 頂進(jìn)設(shè)備及布置 ....................................................................................................................... 16 頂進(jìn)作業(yè) .................................................................................................................................... 16 施工監(jiān)測(cè) .................................................................................................................................... 18 頂進(jìn)糾偏 .................................................................................................................................... 19 頂進(jìn)后線路恢復(fù) ................................................