七宝站
- 网络Qibao Station
七宝站-
文章结合上海地铁9号线七宝站～外环路站区间隧道盾构出洞的实际情况，详细介绍了盾构出洞过程出现渗漏水时采用液氮垂直冻结处理的施工方法。
Combining with the construction of shield driving out of the tunnel in the section between Qibao Station-Outer ring Station along Line 9 of Shanghai tunnel , the paper introduces in details the construction method of the liquefied nitrogen freezing adopted when water leakage occurs in the driving-out process .