本文選題：引水隧洞 + 圍巖熱力學(xué)參數(shù)��； 參考：《水力發(fā)電》2017年09期

【摘要】：以新疆某水電站引水隧洞高地溫段為研究對象,以現(xiàn)場監(jiān)測獲得的環(huán)向應(yīng)力、溫度數(shù)據(jù)為基礎(chǔ),對圍巖和噴層結(jié)構(gòu)的熱力學(xué)參數(shù)(導(dǎo)熱系數(shù)、比熱、對流系數(shù)和線膨脹系數(shù))與噴層環(huán)向應(yīng)力的關(guān)系進(jìn)行了分析,并采用參數(shù)敏感性分析法,研究圍巖與噴層熱力學(xué)參數(shù)對噴層應(yīng)力的敏感性。結(jié)果表明,圍巖和噴層的熱力學(xué)參數(shù)對噴層拱頂環(huán)向應(yīng)力的敏感度排序為:噴層線膨脹系數(shù)噴層導(dǎo)熱系數(shù)圍巖的導(dǎo)熱系數(shù)對流系數(shù)圍巖的線膨脹系數(shù)圍巖的比熱噴層的比熱,拱頂環(huán)向應(yīng)力對噴層線膨脹系數(shù)、噴層導(dǎo)熱系數(shù)、圍巖導(dǎo)熱系數(shù)、對流系數(shù)比較敏感,而對圍巖線膨脹系數(shù)、圍巖比熱和噴層比熱不敏感。
[Abstract]:Taking the highland temperature section of the diversion tunnel of a hydropower station in Xinjiang as the research object, based on the circumferential stress and temperature data obtained by field monitoring, the thermodynamic parameters (heat conductivity, specific heat) of surrounding rock and jet layer structure are studied. The relationship between convection coefficient and linear expansion coefficient was analyzed and the sensitivity of thermodynamic parameters of surrounding rock and jet layer to the stress of jet layer was studied by parameter sensitivity analysis. The results show that the sensitivity of thermodynamic parameters of surrounding rock and spray layer to the circumferential stress of the dome is in the order of linear expansion coefficient of jet layer, thermal conductivity coefficient of spray layer, heat conductivity coefficient of convection coefficient of surrounding rock, specific heat of specific heat jet layer of surrounding rock. The circumferential stress is sensitive to the linear expansion coefficient, thermal conductivity coefficient, heat conductivity coefficient of surrounding rock, convection coefficient, but not to linear expansion coefficient, specific heat of surrounding rock and specific heat of jet layer.
【作者單位】： 石河子大學(xué)水利建筑工程學(xué)院;新疆維吾爾自治區(qū)水利水電勘測設(shè)計研究院;
【基金】：國家自然科學(xué)基金項目(51408377) 石河子大學(xué)杰出青年科技人才培育計劃(2015ZRKXJQ06)
【分類號】：TV554
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本文編號：1945717