科研之友
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摘要
Electrical resistivity is one of the fundamental parameters of the soil, it is an index can be used to evaluate whether the soil was contaminated or not. Resistivity piezocone penetration test (RCPTU) is a reliable in situ technique which can measure the soil resistivity. By conducted four RCPTU soundings at one pesticides contaminated site, soil parameters such as cone tip resistance (q(t)), sleeve friction (f(s)), pore pressure (u(2)), soil resistivity (rho) and so on were obtained. Based on the data from different types of soil, correlations of q(t), f(s), u(2), relative density (D-r, constrained modulus (E-s) and rho were established. The correlations are linearly independent, resistivity decrease with the increase of other parameters. It is shown that different pollutants had different effects on the same type of soil. Uncontaminated soils had the highest resistivity, nitidine chloride contaminated soils had higher resistivity than organophosphorus contaminated soils. Soils contaminated by same kind of pollutant have similar resistivity. Contaminated soils and uncontaminated soils were identified at different zones in Robertson et al. (1986) soil classification charts based on CPTU data.
- 出版日期2016
- 单位东南大学
