【正文】 .............................................................................................................26 .................................................................................................................27 .................................................................................................................................27 .........................................................................................................................27 .................................................................................................................................27 4工程重點(diǎn)、難點(diǎn) .................................................................................................................................27 、難點(diǎn) .............................................................................................................................27 2 地下連續(xù)墻施工 ........................................................................................................................ 27 施工監(jiān)測(cè) .................................................................................................................................... 29 大體積混凝土抗裂 .................................................................................................................... 29 地下工程防水 ............................................................................................................................ 29 安全通過(guò)橋基礎(chǔ)是重點(diǎn) ............................................................................................................ 29 采取的相應(yīng)措施 ............................................................................................................................ 29 連續(xù)墻施工的要求 .................................................................................................................... 29 保證基坑開挖施工安全的措施 ................................................................................................ 29 施工監(jiān)測(cè)方案 ............................................................................................................................ 29 防止大體積混凝土開裂的措施 ................................................................................................ 29 地下工程防水措施 .................................................................................................................... 30 安全通過(guò)橋基礎(chǔ)措施 ................................................................................................................ 31 一、車站主要施工方案及工藝 ........................................................................................................... 31 1車站主體結(jié)構(gòu)施工方案及工藝 ........................................................................................................ 31 前期施工準(zhǔn)備 ................................................................................................................................ 31 施工準(zhǔn)備 .................................................................................................................................... 31 臨時(shí)工程 .................................................................................................................................... 31 車站主體圍護(hù)結(jié)構(gòu)施工方法 ........................................................................................................ 31 車站主體圍護(hù)結(jié)構(gòu)概述 ............................................................................................................ 31 地下連續(xù)墻施工 ........................................................................................................................ 31 鉆孔灌注樁施工 ........................................................................................................................ 43 高壓旋噴樁施工 ........................................................................................................................ 44 圍護(hù)結(jié)構(gòu)冠梁及壓頂梁施工 .................................................................................................... 46 水泥土攪拌樁施工 .................................................................................................................... 46 SMW 工法樁施工 ........................................................................................................................ 47 主體基坑開挖、支護(hù)及回填的施工方法 .................................................................................... 47 .............................................................................................................................47 .....................................................................................................................................48 .................................................................................................................48 .....................................................................................................51 .....................................................................................................................................52 .....................................................................................................................................52 .........................................................................................................................52 .............................................................................................................................52 .....................................................................................................................................52 .....................................................................................................................................53 .................................................................................................................54 .........................................................................................................................54 ......................................................................