大截面矩形盾构机的研制及应用

Development and Application of Large Cross-Section Rectangle Shield Machine

以上海虹桥商务区核心区(一期)与国家会展中心(上海)人行地下通道工程的矩形盾构隧道施工为例,介绍了国内首台大断面矩形盾构机及其工程应用情况。在实际工程中,通过采用反力系统、掘进姿态调整与纠偏、管片拼装技术、自动化高密度监测、近距离穿越桥桩等施工技术,顺利地完成了施工,可为类似工程提供借鉴。

Taking the rectangular shield tunnel construction of Shanghai Hongqiao CBD core center(phase I)and the pedestrian underpass of National Exhibition and Convention Center(Shanghai)as an example,this paper introduces the first domestic large cross-section rectangular shield machine and its engineering application.In the practical engineering,the construction was smoothly completed through the use of construction technologies such as reaction force system,adjustment and correction of tunneling posture,segment assembly technology,automatic high density monitoring,passing through bridge piles at short range and so on,which can provide reference for similar projects.