Application of Watering Balance Method in Trenchless Technology

Abstract:

In this paper, the general situation and difficulties of the Tiantang River crossing project are introduced firstly; then Watering Balance Method WBM is put forward with theoretical analysis on it; finally, the construction process and results of the whole project are introduced and analyzed. The construction practice proves the theoretical analysis is correct and reveals that during the construction process, buoyancy force can be balanced by injecting water into the pipeline to decrease its friction and pulling force.