【正文】 東莞軌道交通 R2 線 2303A標 盾構(gòu)隧道施工方案 誠信、創(chuàng)新永恒；精品、人品同在 1 目 錄 第一章 編制說明 ......................................................................................................................................................... 1 編制說明 ............................................................................................................................................................... 1 編制依據(jù) ............................................................................................................................................................... 1 編制原則 ............................................................................................................................................................... 2 第二章 工程概況 ......................................................................................................................................................... 3 工程概述 ............................................................................................................................................................... 3 總體概況 ....................................................................................................................................................... 3 設計概況 ....................................................................................................................................................... 3 環(huán)境概況 ....................................................................................................................................................... 6 氣象概況 ....................................................................................................................................................... 6 工程地質(zhì)及水文地質(zhì) .......................................................................................................................................... 6 工程地質(zhì) ....................................................................................................................................................... 6 水文地質(zhì) .....................................................................................................................................................10 不良地質(zhì)和特殊巖土 .................................................................................................................................10 第三章 施工重難點分析及對策 ..............................................................................................................................13 盾構(gòu)穿越的地層軟硬不均，上軟下硬地段施工 .........................................................................................13 重疊隧道施工是盾構(gòu)區(qū)間的重點和難點 ......................................................................................................13 盾構(gòu)隧道在富水沙層地段及下穿寒溪河是盾構(gòu)施工的重點 .....................................................................14 車輛段的填土施工影響與應對措施 ..............................................................................................................14 第四章 施工總體籌劃 ..............................................................................................................................................16 盾構(gòu)隧道施工總體部署 ....................................................................................................................................16 盾構(gòu)機 ..........................................................................................................................................................17 盾構(gòu)隧道及附屬工程 .................................................................................................................................24 管片生產(chǎn) .....................................................................................................................................................24 區(qū)間施工準備 .............................................................................................................................................24 盾構(gòu)隧道掘進施工 .....................................................................................................................................25 盾構(gòu)轉(zhuǎn)場施工 .............................................................................................................................................25 聯(lián)絡通道施工 .............................................................................................................................................25 端頭土體加固施工 .....................................................................................................................................26 接口工程施工 .............................................................................................................................................26 盾構(gòu)隧道進度安排 ............................................................................................................................................26 進度安排依據(jù) .............................................................................................................................................26 生產(chǎn)時間安排 .............................................................................................................................................28 盾構(gòu)區(qū)間工期的安排 .................................................................................................................................29 施工進度計劃 .............................................................................................................................................29 材料供應計劃 ....................................................................................................................................................29 主要施工設備配備計劃 ....................................................................................................................................30 施工組織機構(gòu) ....................................................................................................................................................31 人力資源配備