SHAFT LINING, COMPLEX FOR ITS ERECTION AND METHOD OF ITS ERECTION Russian patent published in 2013 - IPC E21D1/08 E21D5/11 

FIELD: construction.

SUBSTANCE: steel-concrete lining of a cylindrical shaft is made as floating of two concentrically arranged steel cylinders with a tight bottom. Cylinders are mounted from two-ring steel sections fixed to each other along the length of the steel lining. The bottom of the lining, the space behind the lining and the space between steel walls of the outer and inner cylinders of this lining is concreted to form a solid steel-concrete cylinder of higher strength and hydraulic insulation. The construction complex includes a motor crane, a mobile drilling rig moving by rails, an airlift system for drilling, a system of multiple cleaning from sludge and supply of a washing fluid into a shaft, a hoist for lifting and lowering of steel structures, a mounting table and an aligning conductor for mounting of circular sections and steel lining, a rolling machine for steel sheets into cylindrical segments, and an electric welding equipment or station.

EFFECT: higher strength of a bearing structure of lining, higher efficiency, safety and speed of its erection.

9 cl, 3 dwg