نتایج جستجو برای: electrical resistivity tomography ert

تعداد نتایج: 380323  

Journal: :Geosciences 2022

Subsurface formations with low compaction, often, due to the presence of underlying cavities, are potential sources hazards. Thus, understanding occurrence, properties, and extension these weak zones poses a major concern in engineering geophysics. In this study, we examine ability geophysical methods map areas over carbonates Northern Oman. The known cause surface depression many areas. examin...

Journal: :IOP conference series 2023

Abstract Road settlement is one of the major problems that often occurs in soft soil ground areas. The combination destructive test method (trial pit, Standard Penetration Test (SPT) and borehole) non-destructive by using seismic refraction, electrical resistivity tomography (ERT) penetrating radar (GPR) were performed to identify factor causing tension cracks road differential settlement. stud...

Journal: :Geosciences 2021

We present the results of laboratory experiments on a down-scaled river levee constructed with clayey material collected from embankment where permanent resistivity instrument has operated since 2015. To create potential seepages through levee, two zones (5 × 4 cm and 10 2 cm) were filled sand during construction. Electrical tomography (ERT) technique Fiber Bragg Grating (FBG) technology used t...

Journal: :Annals of Forest Science 2021

Using several experimental approaches, we have demonstrated that electrical resistivity tomography (ERT) is a reliable nondestructive tool for estimating the moisture content of heartwood in situ. ERT measurements show water pockets (wetwood) are present large majority (90%) silver fir ( Abies alba Mill.) trunks. For wood professionals, presence wetwood logs leads to an increase costs, especial...

Journal: :Near Surface Geophysics 2022

Electrical resistivity tomography (ERT) has seen increased use in the monitoring condition of river embankments, due to its spatial subsurface coverage, sensitivity changes internal states, such as moisture content, and ability identify seepage other erosional process with time-lapse ERT. Two-dimensional ERT surveys are commonly used time site constraints, but they often sensitive features anom...

Journal: :Catena 2021

Owing to their anoxic environment, peatlands play an important role in the preservation of records documenting past atmospheric depositions. To determine records, data on peat stratigraphy and bog development are needed. Ground penetrating radar (GPR) was used thickness morphology Šijec Pokljuka plateau Slovenia, which will serve as a basis for further geochemical studies. Information below pea...

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