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Influence of temperature and water content of soil on electrical resistivity tomography (ERT)

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.advisor Hokkanen, Tero
dc.contributor.author Oredia, Omoghomion
dc.date.accessioned 2020-08-23T17:01:03Z
dc.date.available 2020-08-23T17:01:03Z
dc.date.issued 2020-08-17
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/45977
dc.description.abstract Soil is a dynamic natural body having different properties determined by its origin, modified over time by several geological deformations like glacial rebounds. Several geological and geotechnical techniques have been developed over the years to investigate this dynamic nature of the soil. One of the essential means to study the properties of soils is the Electrical Resistivity Tomography (ERT), which is a non-destructive and inexpensive method of investigation. Although the ERT method provides accurate information on the soil resistivity, the accuracy of the result obtained is however influenced for instance by temperature and water content of the soil. It is common knowledge that the resistivity of soil is affected by its water content and temperature. However, the temperature effect is neglected very often in some ERT studies. Therefore, this thesis concentrates particularly on the effects of the temperature but also water content of the soil on the soil resistivity. This study involves onsite measurements of soil resistivity while monitoring and measuring the soil water content, temperature, and conductivity at different intervals by TDR probe buried beneath the soil surface. Finally, the resistivity of the soil samples obtained from different locations around Metsähovi and Aalto University, Otaniemi campus are measured under controlled laboratory conditions by varying the soil water content and temperature. The results obtained in both cases show that the soil resistivity decrease with an increase in soil moisture. However, it seems that the temperature effect on ERT values is higher with lower soil water content and possibly the soil particle size and texture. en
dc.format.extent 73 + 7
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.title Influence of temperature and water content of soil on electrical resistivity tomography (ERT) en
dc.type G2 Pro gradu, diplomityö fi
dc.contributor.school Insinööritieteiden korkeakoulu fi
dc.subject.keyword electric resistivity tomography (ERT) en
dc.subject.keyword water content en
dc.subject.keyword temperature en
dc.subject.keyword resistivity en
dc.subject.keyword soil en
dc.identifier.urn URN:NBN:fi:aalto-202008234909
dc.programme.major Geoengineering fi
dc.programme.mcode fi
dc.type.ontasot Master's thesis en
dc.type.ontasot Diplomityö fi
dc.contributor.supervisor Leveinen, Jussi
dc.programme Master's Programme in Geoengineering (GEO) fi
local.aalto.electroniconly yes
local.aalto.openaccess yes

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