STUDY ON PERMEABILITY AND ELECTRICAL RESISTIVITY OF RED CLAY CONTAMINATED BY CU2+
Keywords:Red clay, Moisture content, Cu2 pollution, Hydraulic conductivity, Resistivity
In order to study the permeability characteristics of heavy metal ions contaminated red clay and explore the rapid detection of permeability of heavy metal contaminated red clay. Through variable-head permeability test and electrical resistivity test (different voltages and methods), the effects of Cu2+ concentration and initial water content on hydraulic conductivity characteristic and resistivity of contaminated red clay was systematically investigated. The relationship between permeability characteristic and electrical resistivity was further explored by taking Cu2+ concentration and moisture content as the intermediate variable. The obtained results indicate that the different voltage has no obvious effect on the resistivity of the samples. The four-phase electrode method is more accurate than the two-phase electrode method. With increasing Cu2+ concentrations the hydraulic conductivity of specimens increases, however the permeability coefficient of contaminated soil decreases with increasing initial water content. In the resistivity test, with increasing of Cu2+ concentrations and water content, the resistivity of samples presented a downward trend, which is decreased sharply at first and then tended to be gentle. The relationship between hydraulic conductivity and resistivity of contaminated soil showed a good fitting curve no matter in different Cu2+ concentration or in different water content, but the fitting curves of them presented opposite trend.
Chen X J, Xie T, Song Y, Yu Y.2015.Experimental study on soil tectonics characteristics of red clay in Guilin [J] Subgrade Engineering ,(04):72-75.
Zhao J Y, Li Y, Li S S. 2013.Zhang S. Polluted soil remediation technology and industry status in China [J] China Environmental Protection Industry, (03):53-57.
Dou X K. 2017.Contamination and Harm of Copper [J] Science, Technology and Economics Guide ,(08):126
Wang Y, Cao L W, Wen W F, Huo P. 2014.Microstructure and Permeability of domestic waste contaminated clays [J] Hydrogeological & Engineering Geology ,41(02):138-142.
Xiao G Y, Chen X J, Wei C F, Huang X, Chen L. 2016.Mechanism of permeability and control of compaction for red clay under the influence of acid rain [J] Chinese Journal of Rock Mechanics and Engineering ,35(S1):3283-3290.
Liu H, He J T, Zhao X, Wang T X, Guo C Y.2020.Experimental study on the evolution rules of micro-permeability characteristics acid-contaminated undisturbed loess [J] Rock and Soil Mechanics ,41(03):765-772.
Zhang Z H, Li H Y, Chen J Y, Lei Y.2016.Permeability of saturated clay eroded by mixed heavy metal ions [J] Rock and Soil Mechanics ,37(09):2467-2476.
Li K, Zhang D W, Cao Z G.2019.Effect of carbonation on permeability characteristics of cement-stabilized/solidfied lead-contaminated soil [J] Chinese Journal of Geotechnical Engineering ,41(S2):117-120.
Taheri, S. and T. Ebadi, et al. 2018. Predicting variations in the permeability and strength parameters of a sand-bentonite mixture (SBM) contaminated simultaneously with lead (II) and diesel. Applied Clay Science 157: 102-110.
Wang W J, Chen Y, Jiang J L, Cai G C.2020.Experimental Study on compression and infiltration characteristics of silt clay contaminated by alkaline and zinc [J] Geotechnical investigation&surveying,48(02):6-12.
Nayak S,Sunil B M, Shrihari S.2007.Hydralic and compaction characteristics of leach ate-contaminated lateritic soil [J]. Engineering Geology, 94(3-4): 134-144.
Serranti S,Bonifazi G.2012.Pollution level detection in dump clay liners by hyperspeetral imaging [J]. International Journal of Environment and Waste Management, 10(2-3): 163-176.
Xu, S. and M. Bian, et al. 2018.Effects of calcium concentration and differential settlement on permeability characteristics of bentonite-sand mixtures. Applied Clay Science 153: 16-22.
Chu Y, Liu S Y, Cai G J, Bian H L.2015.An experimental study of physical and electrical characteristics of zinc contaminated silty soil [J] Rock and Soil Mechanics ,36(10):2862-2868.
Khin.M.M.Latt, P.H. Giao. 2017. Prediction of permeability of cement-admixed soft clay using resistivity and time-domain IP measurements. Journal of Applied Geophysics 137: 92-103.
Alison Kirkby, Graham Heinson. 2016. Three-dimensional resistor network modeling of the resistivityand permeability of fractured rocks. Journal of Geophysical Research:Solid Earth 122(4):2653-2669
Peng C, Wang B H, Yuan Z H et al.2018. Investigation on permeability of sands based on electrical resistivity. Journal of Jiangsu University of Science and Technology 32(06): 891-897
JTG E40 (2007) Test methods of soils for highway engineering. Industrial Standard of People’s Republic of China, Ministry of communications, PRC
Nanjing Hydraulic Research Institute.2019 Standard for soil test method(GB/T 5023-2019) [S]. Beijing: China Planning Press
Liu G H, Wang Z Y, Huang J P.2004.Research on electrical resistivity feature of soil and it’s application [J] Chinese Journal of Geotechnical Engineering ,(01):83-87.
Liu S Y, Cha F S, Yu X J.2006.Laboratory measurement techniques of the electrical resistivity of soils [J] Journal of Engineering Geology ,(02):216-222.
Song Y and Yang Y et al.2015.Characteristics and deformation mechanism of microstructure for red clay.[J] Journal of Geological Hazards and Environmental Protection ,26(03):73-76.
Chen X J, Chen Y C, Song Y, Li J M, Yu S Z, Chen L J.2019.Analysis on variation of physical-mechanical properties of red clay contaminated by Cu2+[J] Journal of Engineering Geology ,27(05):1010-1018.
Chen H B, Chen X J,Qi Y L et al.2019. Effects of dry density and moisture content on shear strength parameters of remolded red clay soil［J］．Journal of Engineering Geology，27(5): 1035－1040
Chen Y C, Huang X, Chen X J, Zhang X C, Ban R L.2020.Study on relationship between shear strength and electrical resistivity of Cu~(2) contaminated red clay [J/OL] Journal of Yangtze River Scientific Institute,1-13.
Chen Y C, Song Y, Chen X J et al. 2020. Resistivity characteristics of red clay contaminated by Cu 2+ [J] Rock and Soil Mechanics, 2020(S2): 1-10
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