水利水电技术（中英文）

贵州黔南龙里地区岩溶地下水资源丰富。由于新构造运动,使得该区中部地壳不断抬升,形成了独特的方山地貌。为查明该区的特殊地貌是否对当地地下水质量产生影响,特展开此次岩溶地下水水化学特征与水质评价研究。本次研究通过ArcMap绘制水文地质略图,根据所取24组水样的水化学测试结果,运用AquaChem软件做Piper三线图,并进行统计分析,分析研究区地下水水化学特征。运用单因子评价和模糊综合评价两种方法分别对研究区的岩溶地下水质量进行评价,并对结果做空间分析。研究结果表明:(1)研究区水化学类型主要为HCO₃-Ca·Mg型,在中部草原四周均有分布,区内碳酸盐硬度均大于50%,且Fe³⁺表现出强烈的空间变异性。(2)从单因子评价结果可知,研究区的地下水质量能满足饮用水标准的达95.8%。(3)从模糊综合评价的结果可知,研究区的地下水质量均能满足饮用水标准。总体上看,该区地下水资源可作为饮用水资源开采。本次研究结果,为该区今后的岩溶地下水资源开采提供依据。

The karst groundwater resources in Longli area of Guizhou province are abundant. Due to the new neotectonic movement, the central crust of area is continuously uplifted, forming a unique Table-mountain landform. In order to find out whether the special landform of the area has an impact on the quality of local groundwater, the karst groundwater chemical characteristics and water quality evaluation research are carried out. In this study, hydrogeographic sketches are drawn by ArcMap. Based on the water chemistry test results of 24 groups of water samples, the AquaChem software is used to make the Piper three-line chart, and statistical analysis is carried out to analyze the groundwater hydrochemical characteristics of the study area. Two methods, single factor evaluation and fuzzy comprehensive evaluation, are used to evaluate the quality of karst groundwater in the study area, and the results are spatially analyzed. The results show that:(1) The type of water chemistry in the study area is mainly HCO₃-Ca·Mg type, which is distribution around the central grassland. The carbonate hardness in the area is greater than 50%, and the Fe³⁺ shows strong spatial variability.(2) From the single factor evaluation results, the groundwater quality in the study area can meet the drinking water standard of 95.8%.(3) According to the results of fuzzy comprehensive evaluation, the groundwater quality in the study area can meet the drinking water standard. Generally, the groundwater resources in this area can be exploited as drinking water resources. The results of this study provide a basis for the future exploitation of karst groundwater resources in this area.