Numerical simulation on the delivery law of gob gas of fully mechanized caving face

According to the cover rock caving features, the gob of fully mechanized caving face was divided into 3 zones： natural collected zone, pressure effecting zone and press stable zone. Based on these and the gob gas flow control equation, and considered the influence to the mining fissured zone of gas...

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Bibliographic Details
Published inJournal of coal science & engineering, China Vol. 14; no. 3; pp. 403 - 406
Main Author 李树刚 张伟 林海飞
Format Journal Article
LanguageEnglish
Published Heidelberg China Coal Society 01.09.2008
Subjects
Earth and Environmental Science
Earth Sciences
Geochemistry
Geology
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Mechanical Engineering
数字模拟
机械开采
煤层特点
采煤方法
numerical simulation
gob of fully mechanized caving face
gas seepage law
Online AccessGet full text
ISSN1006-9097
1866-6566
DOI10.1007/s12404-008-0089-y

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Summary:According to the cover rock caving features, the gob of fully mechanized caving face was divided into 3 zones： natural collected zone, pressure effecting zone and press stable zone. Based on these and the gob gas flow control equation, and considered the influence to the mining fissured zone of gas drainage, also made use of CFD software, we found an not uniform 3D numerical model of gob gas seepage and got the gas emission law in gob of fully mechanized caving face （with or without discharge measures）, and this can guide the engineering practice in some aspects.
Bibliography:11-3747/TD
numerical simulation, gob of fully mechanized caving face, gas seepage law
TD82
ISSN:1006-9097
1866-6566
DOI:10.1007/s12404-008-0089-y