(1. 南華大學 核資源工程學院，衡陽 421001；
2. 湖南有色冶金勞動保護研究，長沙 421001；3. 璐安集團，長治 046000)
摘 要: 毛細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水表面張力的變化，進而對尾礦砂中毛細水上升規(guī)律產(chǎn)生影響。通過試驗模擬尾礦壩中毛細水上升過程，對長期(95 d)毛細水上升過程進行測計，記錄當時的溫度、氣壓、時間、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水上升規(guī)律的分析模型。結(jié)果表明：溫度對毛細水上升的影響較氣壓大；在毛細水上升初期，溫度、氣壓對毛細水上升規(guī)律的影響不大，但在上升后期其影響逐漸明顯。這是由于毛細水上升過程中溫度氣壓對表面張力的影響隨著毛細水上升動力逐漸衰減變得顯著所致。
關(guān)鍵字: 毛細水；尾礦壩；溫度；氣壓
（1. School of Nuclear Resources Engineering, University of South China, Hengyang 421001, China;
2. Hunan Nonferrous Metallurgy Labor Protection Research Institute, Changsha 410000, China;
3. Lu’an Group, Changzhi 046000, China）
Abstract:The capillary water will affect on stability of tailings dam, and the surface tension will be changed along with temperature and pressure, which has a great influence on the regularity of the capillary water rising. Therefore, the temperature, pressure time and the height of capillary water rising were tested and recorded during a long term of 95 d. Power function was used to build the analysis model for considering the capillary water rising influenced by temperature and pressure. The results indicate that the temperature has a large impact on the capillary water rising than barometric pressure, and in the early time of capillary water rising, the temperature and air pressure have little effects on it, and in the latter part of capillary water rising, the influence of temperature gradually becomes obvious. Furthermore, the analysis also indicates that the dynamic of capillary water rise gradually decay makes the surface tension influenced by the temperature and air pressure became noticeable.
Key words: capillary water; tailings dam; temperature; pressure
