摘要
为适应地质、路线、埋深、始发、过站、吊出、调头、施工场地、经济等多方面的要求,青岛地铁2号线施工选用DSUC型双护盾TBM。它具有刀盘正面采用300 mm厚锻轧钢板整体加工成型,刀盘、盾体阶梯递减、分块设计,后配套为门架式结构、采用集成模块化设计等特点。经过探索研究,解决了施工中存在的导向系统不稳定、辅推油缸布置不合理、洞内围岩加固困难等多个问题。施工实践证明DSUC型双护盾TBM在青岛地铁的应用是成功的。
For the sake of meeting the various requirements of Subway Line 2 in Qingdao in geological conditionsthe routes the buried depth,the originating point, passing-by, lifting out,turning about,the construction site,economic consideration and the like, the DSUC-type double-protective-shield TBM is chosen for the construction of Subway Line 2 in Qngdao. The TBM has a cutterhead in the front which is shaped with whole 300 mm-deep forged and stamped steel plate. Both the cutterhead and the shield body are step-reduced,and designed block by block. The hind matching device of the shield is a portal framed structure made up of integral modules. Through our exploration and study,the instability of the orienting systemthe irrational arrange-ment of the auxiliary cylinders the difficulty in consolidating the internal surrounding rock of the tunnel and many other prob-lems existing in the course of construction are solved. Construction practice shows that the application of the DSUC-type double- protective-shield TBM to the subway in Qingdao is successful.
出处
《国防交通工程与技术》
2018年第1期36-38,27,共4页
Traffic Engineering and Technology for National Defence
关键词
双护盾TBM
青岛地铁
地表注漿
辅推油缸
导向系统
double-protective-shield TBM
subways in Qingdao
ground slip-casting
auxiliary cylinder
orienting system
