By rosebell
In order to digging a water diversion tunnel in Zhuxi County, Hubei Province, a double-shield CREG TBM has been launched.
This TBM CREC 1456 with 4.03m diameter is due to excavate a 9.59km tunnel, with no immediate access and a maximum overburden of 790m.
The tunnel length; the small cross-section; as well as complex strata, are the project’s three major tunneling challenges.
Considering that reducing the risks such as large fault zones and mud and water bursts during construction is important, the CREG TBM features an advanced geological prediction system capable of real-time detection and warning of water and adverse geological conditions ahead of the cutterhead, whereas this machine is also equipped with a system that enables independent and smart tunneling.
Following completion, the tunnel is slated to link the Eping Reservoir with the Zhuxi River basin to establish a water network aimed at co-ordinating water resources, social economy and the environment, and address the issue of water scarcity in the Zhuxi River basin.
