نتایج جستجو برای: soil resistivity
تعداد نتایج: 192189 فیلتر نتایج به سال:
Engineering uses the chloride ion diffusion coefficient as the durability of concrete quality control indicators under the marine environment, due to the chloride ion diffusion coefficient and the electrical resistivity of concrete parameters are reflected in the concrete pore structure, and resistivity testing is convenient, fast advantages, the resistivity alternative chloride ion diffusion c...
[1] The distribution and connectivity of brine pockets in first year sea ice has a determining influence on the bulk properties of the ice and its interaction with the environment. The structure of the brine network depends upon both temperature and salinity, and a full understanding of the temporal evolution of sea ice physical properties requires measurements that are sensitive to the microst...
the subsoil and groundwater were suspected to be polluted by leakage from underground tanks around the oil storage facility in Dhanbad, Jharkhand, India. to delineate the seepage zone, integrated geophysical methods comprising Ground Penetrating Radar (GPR) and 2D electrical Resistivity Imaging (eRI) methods were employed over the suspected zone and in the close vicinity. the studies were condu...
6 [1] Clay-rich mass transport deposits (MTDs) in the Ursa Basin, Gulf of Mexico, record 7 failures that mobilized along extensional failure planes and transformed into long runout 8 flows. Failure proceeded retrogressively: scarp formation unloaded adjacent sediment 9 causing extensional failure that drove successive scarp formation updip. This model is 10 developed from three-dimensional seis...
While ERT surveys are useful, Yeh et al. (2002) showed that uncertainties in tracking moisture movement in the Electrical resistivity tomography (ERT), during the past few years, vadose zone on the basis of ERT surveys alone can has emerged as a potentially cost-effective, noninvasive tool for imaging changes of moisture content in the vadose zone. The accuracy be quite significant. They report...
Accurate information about soil properties is required in plant growth and yield. Hence, the rising knowledge preservation of favourable basically driven by its vital role agricultural crop productivity. Electrical Resistivity Tomography (ERT) GIS were used for site selection, suitability use topographical effect on distribution Ambrose Alli University. Twelve traverses conducted across study a...
Helicopter EM resistivity mapping began to be accepted as a means of geologic mapping in the late 1970s. The data were first displayed as plan maps and images. Some 10 years later, sectional resistivity displays became available using the same ‘‘pseudolayer’’ half-space resistivity algorithm developed by Fraser and the new centroid depth algorithm developed by Sengpiel. Known as Sengpiel resist...
A detailed geophysical investigation was carried out to determine if the subsurface geology is responsible for failures along this road section. This study aims image and identify competent, moderately incompetent zones of soil thus find failure section road. Electrical Resistivity Imaging (ERI) using Wenner array 2D Imaging, Vertical Sounding (VES) Schlumberger were adopted survey. The geoelec...
The present study applies a geophysical approach to the Federal district of Brazil, challenging hydrogeologic setting that requires improved investigation enhance groundwater prospecting meet rising water demand. characterization complex hard-rock aquifer sub-system was conducted using direct current (DC) electrical resistivity tomography (ERT) integrated with surface geological information. Wi...
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