METHOD FOR AUTOMATIC DEVELOPMENT OF SPECIFIED BOTTOM-HOLE SPACE DURING SECOND BOTTOM-HOLE WORKING IN UNDERGROUND EXTRACTION OF HARD COAL Russian patent published in 2012 - IPC E21C35/14 E21D23/12 

Abstract RU 2459955 C2

FIELD: mining.

SUBSTANCE: method for automatic development of specified bottom-hole space is realised during operation of treatment complex consisting of face conveyor, at least one cleanout machine and hydraulic shield powered support. In underground extraction of hard coil slope of support units in relation to horizontal is determined by means of slope sensors. Height of section of shield powered support being respective perpendicular to formation dip is calculated in computing unit. Besides height of cleanout machine penetration as bottom-hole space is recorded, and height of cleanout machine penetration is synchronised with height of section of shield powered support. At that slope sensors are arranged on at least three of four primary support units, in particular: on supporting bearer, rock-dammed shield, bearing hinged arms and rock-dammed part of supporting coverage.

EFFECT: providing automatic positioning of work equipment of complex for control and development of specified bottom-hole space.

14 cl, 16 dwg

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RU 2 459 955 C2

Authors

Junker Martin

Motsar Armin

Dates

2012-08-27Published

2008-02-19Filed