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本文结合了苏州火车站分析了盾构穿越冻结体风险应对措施。苏州火车站位于平江新城,为2号线与4号线的换乘站,车站位于苏州火车站正下方,与国铁站房合建。由于火车站站地表配套建筑已经建成,给后期2号线、4号线的区间施工带来了较大难度,尤其是盾构进出洞期间,地表不具备降水及加固条件,这给盾构进出洞带来了极大的安全隐患。经过多方咨询了解,最后采用的是站内水平冻结方案。
This paper combines the Suzhou Railway Station analysis of the risk of shield through the frozen body measures. Suzhou Railway Station is located in Pingjiang New City, Line 2 and Line 4 transfer station, the station is located directly below the Suzhou Railway Station, and the National Railway Station room together. As the supporting construction of the surface station of the railway station has been completed, it has brought great difficulty to the construction of the interval between Line 2 and Line 4 in the late period. In particular, during the entrance and exit of the shield, the surface does not have the conditions of precipitation and reinforcement, which gives the shield access Cave has brought great security risk. After consultation with many parties to understand, the last station is the level of freezing program.