At present, the two lining of the main road tunnel in Yunnan has been completed for 1565 meters, and the roadbed is expected to be started in October. The Jiaozhou Bay Tunnel has completed 75% of the civil works. The two lining of the main tunnel of the Qingdao terminal project of the tunnel has been completed 2800 meters, accounting for 85% of the project volume. Next, the interior decoration and installation of mechanical and electrical equipment will gradually expand.
After passing through the superstructure in April 28th, the subsea tunnel has been transferred to the lower half section. At present, the filling of the inverted arch is more than 10 kilometers.
According to the person in charge of the Municipal Development Corporation, the tunnel should lay 24 cm thick concrete and lay 12 cm thick asphalt on the paving foundation. Different from the ordinary pavement material, the pavement of the Jiaozhou Bay Tunnel will use the reflective materials to reflect the lights at the top of the tunnel, which is beneficial to the safety of the traffic.
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