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酸性渗漏水会对地下洞室混凝土的耐久性产生不利影响。该文以宜兴抽水蓄能电站为例,根据不同时期的水质化验资料,采用统计分析方法,分析了地下厂房区酸性渗漏水的时空分布特征。结果表明,不同时期区内酸性渗漏水均呈局部分布,且呈现一定的时空变化。近年来转为主要出现在上层排水廊道,且呈现显著的酸性,而在高程较低的中、下层廊道则呈现了一定的弱化趋势。最后,对此类酸性水的潜在影响进行了评价。
Acid leaking water can adversely affect the durability of concrete in underground caverns. Taking Yixing Pumped Storage Power Station as an example, the spatial and temporal distribution characteristics of acid leakage water in underground workshop area are analyzed by statistical analysis method according to the water quality data from different periods. The results showed that the acidic seepage water in each period showed a local distribution with a certain temporal and spatial variation. In recent years, the transition to the main drainage corridor in the upper, showing a significant acidity, while in the lower elevation, the lower corridor shows a certain trend of weakening. Finally, the potential impact of such acidic water is evaluated.