复杂地质条件下隧道联络通道冻结工程实录

Engineering Record on the Freezing Method Applied to Connected Aisle in Tunnel under Complex Geological Conditions

介绍了上海大连路越江隧道联络通道冻结工程,该工程成为国内采用水平冻结法进行大断面长距离联络通道施工的首个成功范例。文中着重介绍了水平冻结法施工方案设计、施工监测情况等,并对监测结果进行分析研究,获得了冻土温度、冻胀压力、隧道变形的变化规律等。研究成果可供其他相关工程参考。

The application of a freezing method to construction of the connected aisle for Shanghai metro connected aisle project is introduced. This project is the first successful example for that the horizontal freezing method has been successfully adopted in the construction of heavy and long range connected aisle in China. This paper chiefly introduces the design of freezing method and construction monitoring. During the construction, the temperatures of frozen soil, the deformation of the ground surface, the expanding and releasing pressures in the soil were surveyed. The laws of the survey results were examined. The results can be used as reference for similar projects.