Abstract:

The innovations in respect of drilling of the contour blast holes, processing of the charging cartridges for smooth blasting, onetime insitu casting of the invert and installing of the embedded watersealing strips made during the construction of No. 1 Dayaoshan tunnel on WuhanGuangzhou passengerdedicated railway are presented in the paper. Due to the application of the mentioned innovations to the construction of No. 1 Dayaoshan tunnel, the construction methods have been simplified, the construction efficiency has been enhanced, the construction quality has been improved and the construction cost has been reduced, which has made great contributions to the successful completion of No. 1 Dayaoshan tunnel.

Key words: passengerdedicated railwayNo. 1 Dayaoshan tunnelconstruction techniqueinnovation, application