波士顿中央干道改扩建中的地下工程施工技术  

The Underground Construction Technology of Boston Central Artery Renovation and Extension

作　　者：汤永净[1,2] 李林林[1] 

机构地区：[1]同济大学地下建筑与工程系,上海200092 [2]同济岩土及地下工程教育部重点实验室,上海200092

出　　处：《施工技术》2015年第13期75-79,共5页Construction Technology

基　　金：国家自然科学基金资助项目(51278359)

摘　　要：对波士顿中央干道/隧道改扩建时采用的主要施工技术进行介绍。其中I-93高架的改造主要采用明挖法、暗挖法等施工技术。利用托换技术确保高架桥正常运营的前提下,采用明挖法在其下方修建较宽的地下通道;在穿越波士顿南站附近某地铁车站时采用了暗挖技术以保证地铁车站的正常运营。在I-90穿越波士顿南站火车轨道时采用顶管法结合冻结地基处理等施工技术来保证上部火车轨道的正常通行。This paper presents the main underground construction technology used in Boston Central Artery Renovation and Extension. Cut and cover combined with mined tunnel method were used in the 1- 93 expansion project, using an advanced underpinning system to ensure the normal operation of the viaduct before excavation. Mined tunnel construction was undertaken when the highway through below a subway station. Considering minimizing the impact on the railway tracks, tunnel-jacking and ground freezing method were applied when 1-90 passed the Boston South Station.

关 键 词：隧道工程 明挖法 托换技术 矿山法 顶管法 施工技术 

分 类 号：TU94[建筑科学—建筑技术科学]