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Handbook of safety technology of coal mines. 2. Gas outburst{center_dot}rock-burst; Tanko hoan gijutsu yoran. 2. Gas tosshutsu{center_dot}yamahane

Miscellaneous:

Abstract

Of safety technologies of coal mines summarized as a handbook, described is the safety technology on gas outburst{center_dot}rock burst. The gas outburst is eruption of coal and gas, and indications of danger of the outburst are gas reserves, degrees of stress relaxation of the coal seam ground, etc. Measures against gas outburst are mainly stress relaxation and gas drainage. Measures for gas control are gas drainage made along the coal seam and made vertically through the coal seam, hydraulic fracturing and ground boring. Measures for rock pressure control are advanced drilling of a protective coal seam which is less dangerous from gas outburst, boring for stress relaxation and excavation of pressure release mine roadways. The rock burst is a phenomenon that coal and rocks bound out into the operation space by abrupt fracture of the rock mass caused by rock pressure. In addition to predictions by a geological structure survey and signs of talking and ground swelling, the following are taken up: wide-area control of coal seam rock pressure (improvement of mining methods, pressure release mine roadways), measures for coal seam strengthening (pressure release boring, pressure release blasting, pressure release water-pouring). Some coal mine accidents and prevention measures are explained.  More>>
Publication Date:
Mar 01, 1991
Product Type:
Miscellaneous
Report Number:
ETDE/JP-mf-2749180
Reference Number:
SCA: 012033; 012031; 016000; PA: NEDO-91:950502; SN: 92000628543
Resource Relation:
Other Information: PBD: Mar 1991
Subject:
01 COAL, LIGNITE, AND PEAT; ROCK BURSTS; COAL MINES; SAFETY ENGINEERING; PRECURSOR; ASSOCIATED GAS; BASEMENT ROCK; RESERVES; PRESSURE RELEASE; COAL SEAMS; STRESS RELAXATION; CONTROL; GEOPRESSURED SYSTEMS; 012033; 012031; 016000; MINE ENVIRONMENT; STRATA MECHANICS AND CONTROL; HEALTH AND SAFETY
OSTI ID:
10108611
Research Organizations:
Mining and Material Processing Inst. of Japan, Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Other: ON: DE92749180; TRN: 91:950502
Availability:
OSTI; NTIS (US Sales Only)
Submitting Site:
NEDO
Size:
145 p.
Announcement Date:
Jun 30, 2005

Miscellaneous:

Citation Formats

None. Handbook of safety technology of coal mines. 2. Gas outburst{center_dot}rock-burst; Tanko hoan gijutsu yoran. 2. Gas tosshutsu{center_dot}yamahane. Japan: N. p., 1991. Web.
None. Handbook of safety technology of coal mines. 2. Gas outburst{center_dot}rock-burst; Tanko hoan gijutsu yoran. 2. Gas tosshutsu{center_dot}yamahane. Japan.
None. 1991. "Handbook of safety technology of coal mines. 2. Gas outburst{center_dot}rock-burst; Tanko hoan gijutsu yoran. 2. Gas tosshutsu{center_dot}yamahane." Japan.
@misc{etde_10108611,
title = {Handbook of safety technology of coal mines. 2. Gas outburst{center_dot}rock-burst; Tanko hoan gijutsu yoran. 2. Gas tosshutsu{center_dot}yamahane}
author = {None}
abstractNote = {Of safety technologies of coal mines summarized as a handbook, described is the safety technology on gas outburst{center_dot}rock burst. The gas outburst is eruption of coal and gas, and indications of danger of the outburst are gas reserves, degrees of stress relaxation of the coal seam ground, etc. Measures against gas outburst are mainly stress relaxation and gas drainage. Measures for gas control are gas drainage made along the coal seam and made vertically through the coal seam, hydraulic fracturing and ground boring. Measures for rock pressure control are advanced drilling of a protective coal seam which is less dangerous from gas outburst, boring for stress relaxation and excavation of pressure release mine roadways. The rock burst is a phenomenon that coal and rocks bound out into the operation space by abrupt fracture of the rock mass caused by rock pressure. In addition to predictions by a geological structure survey and signs of talking and ground swelling, the following are taken up: wide-area control of coal seam rock pressure (improvement of mining methods, pressure release mine roadways), measures for coal seam strengthening (pressure release boring, pressure release blasting, pressure release water-pouring). Some coal mine accidents and prevention measures are explained. 127 refs., 130 figs., 22 tabs.}
place = {Japan}
year = {1991}
month = {Mar}
}