盾构施工超小半径掘进施工技术质量控制研究

Research on Technical Quality Control of Shield Tunneling with Ultra-small Radius

本文以无锡地铁4号线一期工程06标大剧院站—五湖大道站区间R=310 m、325 m超小转弯半径为例,根据小半径的实际情况,合理选择标准环和楔形环之间的组合,并在实际施工中重视盾构机和管片姿态灵活调整,确保管片姿态与盾构机的姿态贴合度,从而减少管片错台。

This paper takes Wuxi Metro Line 4 Phase Project 06 Standard Grand Theatre Station to Wuhu Avenue Station interval R=310 m,325 m ultra small turning radius as an example,according to the actual situation of small radius,reasonably choose the combination between standard ring and wedge ring,and in the actual construction of the shield machine and segment attitude flexible adjustment,to ensure that the segment attitude and shield machine attitude fit,so as to reduce the segment fault.