上海地铁二号线隧道贯通定向技术及精度控制

Breakthrough Measurement for Shanghai No.2 Subway Tunnel

针对上海地铁二号线东方路站至东昌路站以及东昌路站至陆家嘴路站区间隧道按设计准确贯通的测量实践 ,论述了地铁贯通测量中的各项误差分配及误差控制技术 ,从而确保盾构按预留洞口精确贯通 .

This paper describes the technique of breakthough measurement in Shanghai No.2 subway survey, which includes how control the surveying errors. This technique can ensure the excavation in pointed direction.