Study on the Correlation Between Soluble Salt and Water Content in the Building Foundation Site of Dahe Village
[Purposes]This paper analyzes the correlation between soluble salt and water content in the burnt soil,and finds out the cause of the surface disease of the burnt soil of the house foundation.[Meth-ods]The moisture content,cation and anion content of the sample were measured using weighing method,atomic absorption spectrometer,and titration method.The differences in soluble salt components and moisture content in different parts of the red burnt soil on the building foundation were obtained through coefficient of variation analysis.The correlation between soluble salt components and moisture content was obtained through Pearson correlation analysis.[Findings]Research shows that:① There are significant differences in moisture content in different positions of braised soil,with the lowest moisture content being 1.98%,the highest moisture content being 5.86%,the highest moisture content being 2.96 times the lowest value,and the coefficient of variation being 24.12%;② There is a significant difference in the soluble salt content in different positions of braised soil,and the differences in the components of soluble salt from large to small are as follows:Cl->SO42->CO32->Mg2+>Ca2+>Na+>K+;③ The moisture con-tent of samples at different locations is significantly correlated with the Cl-and K+content,and the mois-ture content of the braised soil at the site will increase with the increase of Cl-and K+content.[Conclu-sions]The high soluble salt content in the foundation site is the main factor causing surface diseases of the site.
Dahe Village sitebraised soilsolublesaltwatercontentcoefficientofvariationcorrelation
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