發(fā)布時(shí)間：2018-06-16 05:05

  本文選題：毛細(xì)水 + 尾礦壩��； 參考：《中國有色金屬學(xué)報(bào)》2017年05期

【摘要】：毛細(xì)水的存在對尾礦壩的安全穩(wěn)定有一定影響,而溫度、氣壓的改變會引起毛細(xì)水表面張力的變化,進(jìn)而對尾礦砂中毛細(xì)水上升規(guī)律產(chǎn)生影響。通過試驗(yàn)?zāi)M尾礦壩中毛細(xì)水上升過程,對長期(95 d)毛細(xì)水上升過程進(jìn)行測計(jì),記錄當(dāng)時(shí)的溫度、氣壓、時(shí)間、上升高度等。建立分別考慮溫度、氣壓及綜合考慮溫度及氣壓的毛細(xì)水上升規(guī)律的分析模型。結(jié)果表明:溫度對毛細(xì)水上升的影響較氣壓大;在毛細(xì)水上升初期,溫度、氣壓對毛細(xì)水上升規(guī)律的影響不大,但在上升后期其影響逐漸明顯。這是由于毛細(xì)水上升過程中溫度氣壓對表面張力的影響隨著毛細(xì)水上升動(dòng)力逐漸衰減變得顯著所致。
[Abstract]:The existence of capillary water has a certain influence on the safety and stability of tailings dam, and the change of temperature and pressure will cause the change of surface tension of capillary water, and then affect the law of capillary water rising in tailings. By simulating the capillary water rising process in the tailings dam, the capillary water rising process for a long period of 95 days is measured, and the temperature, pressure, time and rising height are recorded at that time. An analytical model of capillary water rising law considering temperature, air pressure and temperature and pressure was established. The results show that the effect of temperature on capillary water rise is greater than that of atmospheric pressure, and at the initial stage of capillary water rise, the effect of temperature and pressure on capillary water rise is not significant, but the effect is gradually obvious at the later stage of rising. This is due to the effect of temperature and pressure on the surface tension in the process of capillary water rising.
【作者單位】： 南華大學(xué)核資源工程學(xué)院;湖南有色冶金勞動(dòng)保護(hù)研究院;璐安集團(tuán);
【基金】：國家自然科學(xué)基金資助項(xiàng)目(51004067,51374129) 高等學(xué)校博士學(xué)科點(diǎn)專項(xiàng)科研基金資助項(xiàng)目(20104324120001) 湖南省教育廳重點(diǎn)科研基金資助項(xiàng)目(17A184) 衡陽市2014年社會發(fā)展科技支撐計(jì)劃資助項(xiàng)目(2014KS28) 南華大學(xué)校級創(chuàng)新團(tuán)隊(duì)計(jì)劃資助項(xiàng)目(NHCXTD04);南華大學(xué)研究生科研創(chuàng)新項(xiàng)目(2012XCX22)~~
【分類號】：TV223.4;TV649

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本文編號：2025448