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Technique for reinforcing development working in lower strata of thick coal seams

Abstract

This device is to be used by mining industry, specifically for reinforcing development work in bottom strata of thick coal seams having a layer depression. Reinforcing consists of drilling a hole, or making cutting slits and lowering support props for the stratum below through them, as well as lowering the roof timber on the ground. To cut back expenditures on installation and removal of equipment, drilling or making cutting slits is done to a depth equal to the total height of the substrata, and the support props are laid for all of the substrata. Only the roof timber is lowered on the ground during work on the layers.
Publication Date:
Jan 15, 1981
Product Type:
Patent
Report Number:
SU 2549359
Reference Number:
EDB-83-055056
Resource Relation:
Patent File Date: Filed date 1 Dec 1977; Other Information: PAT-APPL-796441
Subject:
01 COAL, LIGNITE, AND PEAT; UNDERGROUND MINING; STRATA CONTROL; SUPPORTS; BOREHOLES; COAL SEAMS; DRILLING; DRILLING EQUIPMENT; INDUSTRY; USSR; ASIA; CAVITIES; COAL DEPOSITS; EASTERN EUROPE; EQUIPMENT; EUROPE; GEOLOGIC DEPOSITS; MECHANICAL STRUCTURES; MINERAL RESOURCES; MINING; RESOURCES; 012000* - Coal, Lignite, & Peat- Mining
OSTI ID:
6477380
Country of Origin:
USSR
Language:
Russian
Availability:
Plenum Publishing Corp., New York, NY.
Submitting Site:
HEDB
Size:
Pages: v
Announcement Date:

Citation Formats

Andranovich, V A, Gromov, Yu V, and Kurglikov, V P. Technique for reinforcing development working in lower strata of thick coal seams. USSR: N. p., 1981. Web.
Andranovich, V A, Gromov, Yu V, & Kurglikov, V P. Technique for reinforcing development working in lower strata of thick coal seams. USSR.
Andranovich, V A, Gromov, Yu V, and Kurglikov, V P. 1981. "Technique for reinforcing development working in lower strata of thick coal seams." USSR.
@misc{etde_6477380,
title = {Technique for reinforcing development working in lower strata of thick coal seams}
author = {Andranovich, V A, Gromov, Yu V, and Kurglikov, V P}
abstractNote = {This device is to be used by mining industry, specifically for reinforcing development work in bottom strata of thick coal seams having a layer depression. Reinforcing consists of drilling a hole, or making cutting slits and lowering support props for the stratum below through them, as well as lowering the roof timber on the ground. To cut back expenditures on installation and removal of equipment, drilling or making cutting slits is done to a depth equal to the total height of the substrata, and the support props are laid for all of the substrata. Only the roof timber is lowered on the ground during work on the layers.}
place = {USSR}
year = {1981}
month = {Jan}
}