本文選題：煤巖體　切入點(diǎn)：相似材料　出處：《工礦自動(dòng)化》2017年06期 　論文類型：期刊論文

【摘要】：針對(duì)現(xiàn)有研究大多針對(duì)煤巖體相似材料的力學(xué)性質(zhì),而少有對(duì)其聲波速度變化規(guī)律進(jìn)行分析的問題,選用煤泥、砂子、水泥和水為原料制備煤巖體相似材料,采用極差分析方法就不同配比對(duì)相似材料聲波速度的影響進(jìn)行了正交試驗(yàn)研究。結(jié)果表明:相似材料的聲波速度與煤巖體相近,可在較大范圍進(jìn)行調(diào)整,符合煤巖體聲波速度指標(biāo)對(duì)相似材料的要求;水泥含量對(duì)相似材料的聲波速度有明顯的影響,煤泥含量對(duì)聲波速度的影響次之,砂子含量對(duì)聲波速度的影響不顯著,且聲波速度與水泥含量和煤泥含量呈正相關(guān)關(guān)系;相似材料的縱波速度和橫波速度之間存在較好的線性正相關(guān)性。通過對(duì)試驗(yàn)數(shù)據(jù)進(jìn)行多元線性回歸分析,得到了確定相似材料配比的經(jīng)驗(yàn)方程,便于制備滿足聲波速度要求的煤巖體相似材料。
[Abstract]:In view of the problem that most of the existing researches focus on the mechanical properties of similar materials of coal and rock mass, but few on the analysis of the variation law of acoustic velocity, coal slime, sand, cement and water are used as raw materials to prepare similar materials of coal and rock mass. The effects of different ratios on acoustic velocity of similar materials are studied by means of range analysis. The results show that the acoustic velocities of similar materials are similar to those of coal and rock mass and can be adjusted in a wide range. The cement content has obvious influence on the sound wave velocity of the similar material, the coal slime content has the second influence on the sound wave velocity, and the sand content has no significant effect on the sound wave velocity. The sonic velocity is positively correlated with cement content and coal slime content, and there is a good linear positive correlation between the longitudinal wave velocity and the shear wave velocity of similar materials. The empirical equation of determining the ratio of similar materials is obtained, which is convenient for preparing similar materials of coal and rock mass which meet the requirements of acoustic velocity.
【作者單位】： 中國(guó)礦業(yè)大學(xué)(北京)地球科學(xué)與測(cè)繪工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51574250)
【分類號(hào)】：TB301
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本文編號(hào)：1590569