Abstract:

The stopping of water leakage and slurry leakage of shield receiving shaft are very important and difficult. A series of technologies, i.e. filling of opencut tunnel, grouting in tunnel, polyurethane filling for main tunnel structure and tunnel portal freezing, have been adopted in water leakage stopping of shield receiving shaft of Xiqingdao StationNanyunhe Station section on Line No. 6 of Tianjin Metro. The construction results show that the abovementioned technologies are feasible and effective.

Key words: earth pressure balance shield, shield receiving, water leakage of shield receiving shaft, water leakage stopping