溫度變化對(duì)煤體堅(jiān)固性系數(shù)的影響
發(fā)布時(shí)間:2018-04-04 19:45
本文選題:堅(jiān)固性系數(shù) 切入點(diǎn):溫度變化 出處:《煤礦安全》2015年06期
【摘要】:為了測(cè)定不同實(shí)驗(yàn)溫度對(duì)煤堅(jiān)固性系數(shù)的影響,設(shè)計(jì)制造了溫度可調(diào)的堅(jiān)固性系數(shù)測(cè)定裝置,對(duì)煤樣分組進(jìn)行實(shí)驗(yàn),在溫度為-20~60℃之間,每隔10℃就測(cè)定1個(gè)堅(jiān)固性系數(shù),得到不同溫度時(shí)刻的煤堅(jiān)固性系數(shù)值,實(shí)驗(yàn)結(jié)果表明:煤體堅(jiān)固性系數(shù)隨著溫度升高而減小,隨著溫度降低而增大,不同煤樣受溫度影響程度不一樣,煤體越堅(jiān)硬,變化的幅度越大,煤體越軟,變化的幅度就越小。
[Abstract]:In order to determine the influence of different experimental temperatures on the stability coefficient of coal, a device for measuring the coefficient of robustness of coal with adjustable temperature was designed and manufactured. The coal samples were divided into groups. At the temperature of -20 ~ 60 鈩,
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