【正文】 ............................................................................... 114 一般要求 ................................................................................................................................................................114 地表允許隆陷值 .....................................................................................................................................................114 監(jiān)測方案 ................................................................................................................................................................114 地面沉降監(jiān)測 .........................................................................................................................................................114 地面建筑物監(jiān)測 .....................................................................................................................................................115 地下管線監(jiān)測 .........................................................................................................................................................115 穿越跨線橋 ..............................................................................................................................................................115 軟弱地層施工 ..........................................................................................................................................................116 穿越江河或大面積水塘 ...........................................................................................................................................116 施工通道 ...............................................................................................................................................................116 5．管片生產(chǎn) ...................................................................................................................... 116 廣州市軌道交通十四號線支線工程【施工 4 標(biāo)】土建工程 招標(biāo)文件 4 總則 ......................................................................................................................................................................116 材料 ......................................................................................................................................................................117 實施 ..................................................................................................................................................................... 121 6．盾構(gòu)掘進(jìn) ...................................................................................................................... 122 總則 ....................................................................................................................................................................... 122 工程范圍 ............................................................................................................................................................... 123 盾構(gòu)機選型 .......................................................................................................................................................... 123 盾構(gòu)機設(shè)計 ............................................................................................................................................................ 123 盾構(gòu)掘進(jìn) ................................................................................................................................................................ 126 環(huán)形間隙注漿 ......................................................................................................................................................... 126 人員進(jìn)入加壓狀態(tài)下的切削倉 .............................................................................................................................. 126 超前注漿 ............................................................................................................................................................... 127 地面加固 ............................................................................................................................................................... 127 開挖刀具的更換 .................................................................................................................................................. 127 有害氣體監(jiān)測 ....................................................................................................................................................... 127 7．防水及防腐蝕工程 ...................................................................................................... 127 總則 ..................................................................................................................................................................... 127 參照標(biāo)準(zhǔn) ............................................................................................................................................................. 127 防水等級下表列出工程各部位的防水等級： ..................................................................................................... 127 防腐蝕措施 ............................................................................................................................................................ 128 彈性密封墊 .......................................................................................................................................................... 128 隧道防水處理 ...................................................................................................................................................... 128 聯(lián)絡(luò)通道和洞門防水處理 ................................................................................................................................... 129 8．洞門施工 ...................................................................................................................... 129 一般要求 ..................................................................................................................