上海地铁2号线区间隧道盾构施工若干技术难题及对策

Measures for the Disposal of the Difficulties in Shield Tunnelling of Shanghai Metro Line No. 2

本文针对上海地铁2号线区间隧道的建设施工,较全面地分析了隧道盾构施工中的若干技术难题,包括盾构近距离穿越地下管线及地下构筑物、区间隧道联络通道的施工、盾构浅覆土进出洞等,并提出了几点有效的对策措施。

In this paper, the author comprehensively analyzed several difficult problems of the shield tunnelling in Shanghai Metro Line No. 2, including the shield tunnelling through the im-mediate underground structures, the construction of cross passages and the shield starting and arriving under the circumstances of shallow cover. According to these problems, the au-thor provided some effective measures.