METHOD OF ROCK PRESSURE CONTROL Russian patent published in 2009 - IPC E21C41/16 E21F15/00 

Abstract RU 2351764 C1

FIELD: mining.

SUBSTANCE: invention refers to mining and can be implemented at underground development of minerals mainly in zone of permafrost. The method of rock pressure control consists in forming a massif and in stacking of flexors in a massif roof or in a massif bottom. The massif is formed out of mixture of rock mass cooled to subzero temperature of -10°C to -40°C and water used as binding at the ratio of volumes of water and rock mass of negative temperature from 1:28 to 1:4. Flexors in form of elastic vessels filled with a working agent are arranged in the body of the massif. Compressed gas, liquid or gas-liquid mixture is used as a working agent.

EFFECT: increased efficiency and safety at mining due to control over yielding of built massifs and to reduction of labour intensiveness at their building.

5 cl, 1 dwg

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RU 2 351 764 C1

Authors

Mikhajlov Jurij Vasil'Evich

Kamnev Evgenij Nikolaevich

Morozov Vladislav Nikolaevich

Dates

2009-04-10Published

2008-03-03Filed