长距离管棚加固技术在盾构下穿既有运营地铁线路中的应用

Application of Long Pipe Roof Curtain Grouting Method in Shield-driven Tunnel Across Eoperating Metro Lines

随着城市轨道交通的不断发展,不可避免的出现新建地铁线路下穿既有运营线路的情况。为减少下穿施工对既有运营线路的影响,需要对下穿部位进行加固。本文通过对螺旋出土跟管钻进、斜面钻头导向纠偏的长距离管棚加固技术应用情况的介绍,得出了合理的结论和展望。

With the continuous development of urban rail transit,the emergence of the inevitable under the new subway lines in both the operating line. In order to reduce wear under construction influence on both the operating line,need to reinforce the under wear parts. This paper unearthed with spiral tube orientation correction,slant drilling bit of long pipe roof reinforcement technology application situation is introduced,the reasonable conclusion and prospect.