The Behaviour of Laboratory Soil Electrical Resistivity Value under Basic Soil Properties Influences

2nd International Conference on Geological, Geographical, Aerospace and Earth Sciences 2014

Hazreek, Z.A.M.^1,4 ; Aziman, M.^1 ; Azhar, A.T.S.^1 ; Chitral, W.D.^2,5 ; Fauziah, A.^3,6 ; Rosli, S.^4

Faculty of Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia, Batu Pahat Johor

86400, Malaysia^1

Research Center for Soft Soil, Universiti Tun Hussein Onn Malaysia, Batu Pahat Johor

86400, Malaysia^2

School of Civil Engineering, Universiti Sains Malaysia, Nibong Tebal Penang

14300, Malaysia^3

School of Physics, Universiti Sains Malaysia, Penang

11800, Malaysia^4

School of Architecture, Computing and Engineering, University of East London, Beckton, London

E11 2RD, United Kingdom^5

Institute of Postgraduate Studies, Universiti Sains Malaysia, Penang

11800, Malaysia^6

关键词: Archaeological studies;    Confidence levels;    Electrical resistivity methods;    Geophysical tools;    Geotechnical tests;    Laboratory experiments;    Soil electrical resistivities;    Soil physical property;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/23/1/012002/pdf
DOI  :  10.1088/1755-1315/23/1/012002

来源: IOP

【 摘 要 】

Electrical resistivity method (ERM) was a popular indirect geophysical tools adopted in engineering, environmental and archaeological studies. In the past, results of the electrical resistivity value (ERV) were always subjected to a long discussion and debate among the related parties such as an engineers, geophysicists and geologists due to its lack of clarification and evidences in quantitative point of view. Most of the results produced in the past was always been justified using qualitative ways which difficult to be accept by certain parties. In order to reduce the knowledge gap between those parties, this study has performed a laboratory experiment of soil box resistivity test which supported by an additional basic geotechnical test as referred to particle size distribution test (d), moisture content test (w), density test (ρbulk) and Atterberg limit test (LL, PL and PI). The test was performed to establish a series of electrical resistivity value with different quantity of water content for Clayey SILT and Silty SAND soil. It was found that the ERV of Silty SAND (600 - 7300 Ωm) was higher than Clayey SILT (13 - 7700 Ωm) due to the different quantity of basic soil properties value obtained from the basic geotechnical test. This study was successfully demonstrated that the fluctuation of ERV has greatly influenced by the variations of the soil physical properties (d, w, ρbulk, LL, PL and PI). Hence, the confidence level of ERV interpretation will be increasingly meaningful since it able to be proved by others parameter generated by laboratory direct test.