【正文】 I / 73珠 江 三 角 洲 城 際 快 速 軌 道 交 通廣 州 至 佛 山 段 項(xiàng) 目 施 工 14 標(biāo)【 沙涌站 ~沙園站區(qū)間】盾構(gòu)穿越建（構(gòu)）筑物施工方案 編 制： 審 核： 審 批： 中鐵二局股份有限公司珠江三角洲城際快速軌道交通廣州至佛山段 14 標(biāo)項(xiàng)目經(jīng)理部 2022 年 10 月 30 日II / 73目 錄1 編制依據(jù) ................................................................................................................................................. 1 2 工程概況 .....................................................................................................................................................2 線路概況 ......................................................................................................................................................2 工程地質(zhì) ......................................................................................................................................................3 水文地質(zhì) ......................................................................................................................................................5 房屋簡(jiǎn)介 ......................................................................................................................................................63 主要施工風(fēng)險(xiǎn)分析 ......................................................................................................................................7 盾構(gòu)推進(jìn)過(guò)程中引起地層損失 ..................................................................................................................7 受擾動(dòng)土的再固結(jié) ......................................................................................................................................84 盾構(gòu)機(jī)選型 ..................................................................................................................................................8 盾構(gòu)機(jī)設(shè)計(jì)依據(jù) ..........................................................................................................................................8 盾構(gòu)機(jī)選型原理 ..........................................................................................................................................8 盾構(gòu)機(jī)選定 ..................................................................................................................................................8 盾構(gòu)機(jī)參數(shù) ..................................................................................................................................................95 地表房屋情況 ..............................................................................................................................................9 七層以下房屋 ..............................................................................................................................................9 七層及以上房屋 ........................................................................................................................................156 穿越前準(zhǔn)備 ................................................................................................................................................18 基礎(chǔ)資料準(zhǔn)備情況 ....................................................................................................................................18 人員培訓(xùn)及技術(shù)交底 ................................................................................................................................18 機(jī)械檢修 ....................................................................................................................................................18 測(cè)量、監(jiān)測(cè)人員到位 ................................................................................................................................19 隧道、地面聯(lián)絡(luò)暢通 ................................................................................................................................19 應(yīng)急材料到位 ............................................................................................................................................197 盾構(gòu)下穿房屋方案 .....................................................................................................................................19 盾構(gòu)下穿房屋總體方案 ............................................................................................................................19 盾構(gòu)掘進(jìn)控制 ............................................................................................................................................20 掘進(jìn)參數(shù)設(shè)定和優(yōu)化 ........................................................................................................................20 碴土改良 ............................................................................................................................................22 出土量控制 ........................................................................................................................................23 盾構(gòu)姿態(tài)控制及調(diào)整 ........................................................................................................................24 壁后注漿 ............................................................................................................................................24 房屋加固方案 ............................................................................................................................................28 盾構(gòu)通過(guò)房屋前準(zhǔn)備 ........................................................................................................................28 地面注漿加固 ....................................................................................................................................28 注漿施工工藝 ....................................................................................................................................33 洞內(nèi)注漿加固 ............................................................................................................................................36III / 73 建構(gòu)筑物加固措施參數(shù) ............................................................................................................................368 施工監(jiān)控量測(cè) ......