METHOD FOR VERTICAL BOREHOLE RECONSTRUCTION Russian patent published in 2012 - IPC E21D5/00 E21D11/38

Abstract RU 2459084 C1

FIELD: mining.

SUBSTANCE: method for vertical borehole reconstruction includes the following stages: mounting of water-proof and backfill formwork, reinforcement mounting, filling of backfill gap between the formwork and borehole lining by compound on the base of aqua-gel and its following displacement by concrete-sand solution. Note that backfill gap is filled through sectoral-perforated pipes structurally included into the metal formwork.

EFFECT: improvement of water-proof properties of borehole lining.

9 cl, 3 dwg

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RU 2 459 084 C1

Authors

Androsov Ivan Vasil'Evich

Dates

2012-08-20—Published

2011-01-20—Filed