METHOD OF THE MINE SHAFT WITH A TUBING SUPPORT RECONSTRUCTION Russian patent published in 2018 - IPC E21D5/11 

FIELD: mining.

SUBSTANCE: invention relates to the mining industry and can be used for the reconstruction of the well shafts with tubing support in waterlogged soils, including the reconstruction of the underground railway systems ventilation shafts. Method comprises cleaning the tubing of corrosion and tamponing the walling space plugging with the backfill composition. After the walling space plugging inside the shaft a shell is installed with provision of the technological gap between the shell and the tubing support. At that, the shell consists of two layers of strong fiberglass, between which a heat retainer made of mineral raw materials is laid. Space between the shell and the tubing support is filled with fiber-reinforced concrete with plasticizing additives. Shells installation and the fiber-reinforced concrete supply process is carried out sequentially along the entire height of the shaft.

EFFECT: technical result of the invention is reduction of the material intensity, labor and timing of the mine shaft reconstruction, as well as the creation of reliable internal hydro and thermal insulation.

1 cl, 1 dwg