Design and practice of freezing method applied to connected aisle in tunnel under complex conditions

Design of freezing method and construction monitoring in the construction of the connected aisle project in the tunnel was introduced.During the construction,the temperatures of salty water and frozen soil,the frost-heave force and the deformation of tunnel liner were surveyed.The variations of the surveyed results were examined.Information-construction had been assuranced.Good effects of freezing method were obtained in the project.