Deo Nai - Coc Sau Coal Company put up a signboard to welcome the Quang Ninh Coal Party Congress.

Delegates attached a sign to the repair project of tunnel No. 2, part of the drainage system +28 serving the drainage of 3 mines Coc Sau, Deo Nai, Cao Son.

The repair project of furnace No. 2, part of the drainage system +28 serving the drainage of 3 mines Coc Sau, Deo Nai, Cao Son has a total investment of more than 50 billion VND; construction of an arched tunnel with a total length of 345m, width of 4.3m, height of 3.3m, reinforced concrete furnace arch wall, SPV 27 furnace support steel beam; ensuring drainage with the largest basin, water flow rate reaching 60 m³/s . The project was completed in 10 months, 20 days ahead of schedule.

The installation of the signboard for the operation of the repair project of tunnel No. 2 ensures safe drainage during the rainy season above the self-flowing level of the three mines of Coc Sau, Deo Nai and Cao Son; meets the requirements for production, at the same time prevents the risk of mine flooding, environmental incidents, and natural disaster prevention according to the orientation of the Vietnam National Coal - Mineral Industries Group.

Viet Hung

Source: https://baoquangninh.vn/cong-ty-than-deo-nai-coc-sau-gan-bien-cong-trinh-chao-mung-dai-hoi-dai-bieu-dang-bo-tkv-3352643.html