Construction personnel of Yueshan Public Works section repair tunnel diseases in Taoping tunnel of Houyue line

On April 20, the construction personnel of Yueshan Public Works section rectified the tunnel diseases in Taoping tunnel of Houyue line. Houyue line is a large coal transportation channel of 100 million tons. From March 21, Taoping tunnel will be reinforced by steel arch spraying steel fiber concrete and protective net to ensure transportation safety. Photo by special correspondent Wang Zhanjun