Open Channel and LongitudinalCofferdam Project Attributed to CGGC.
承建的导流明渠和纵向围堰工程。
2
The second stage foundation pit of the TGP will be bounded by the upstream and downstream transverse cofferdams and the longitudinal concrete cofferdam.
三峡工程二期上下游横向围堰与混凝土纵向围堰共同形成基坑,保证二期工程施工。
3
The second stage construction area on the main river bed is formed by the second stage up & downstream transverse cofferdams and the longitudinal con crete cofferdam.