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通过对前人在北山地区已经进行的钻孔取样分析测试及野外调查资料进行归纳总结,获得了目前所研究的北山地区具有代表性的水样化学组成。结果表明,北山旧井地段3号钻井获得的水样成分可以代表北山地区的地下水总体情况,其中Na+,Cl-和SO_4~(2-)含量最高且差别不大,而K+和NO_3~-含量普遍较低,含量较高组与含量较低组相差近4倍。Cl~-和SO_4~(2-)一直是影响腐蚀程度的重点因子,甘肃北山地区代表性地下水成分的确定为以后进行北山地区高放废料储罐表面化学环境的模拟和储罐腐蚀研究奠定了基础。
By summarizing the drilling sampling analysis test and field survey data that the predecessors had conducted in Beishan area, the representative water sample chemical composition of Beishan area was obtained. The results show that the water samples obtained from No.3 drilling in Bei Shan Old Well section can represent the overall groundwater situation in Beishan area. The content of Na +, Cl- and SO_4 ~ (2-) is the highest and the difference is not significant, while the contents of K + and NO_3 ~ Generally lower, the higher the group and the lower the group a difference of nearly 4 times. Cl ~ - and SO_4 ~ (2-) have always been the key factors affecting the degree of corrosion. The determination of representative groundwater components in Beishan area of Gansu Province has laid a foundation for the future research on the chemical environment of storage tanks for high level radioactive waste in Beishan area and for tank corrosion studies basis.