scholarly journals Periodically inundated uvalas and collapse dolines of Upper Pivka, Slovenia

2020 ◽  
Vol 60 (2) ◽  
pp. 91-150
Author(s):  
Uroš Stepišnik ◽  
Petra Gostinčar
Keyword(s):  
Electrical Resistivity ◽  
Water Table ◽  
Electrical Resistivity Tomography ◽  
Resistivity Tomography ◽  
Water Table Level ◽  
Flood Deposits

Within the area of Upper Pivka there is a number of intermittent lakes because of oscillation of water table level close to the surface i.e. shallow karst. Our survey was focused on morphogenetic interpretation of depressions hosting intermittent lakes by means of classic morphographic mapping and sediment analyses that was supported by electrical resistivity tomography. We can interpret at least two different morphogenetic types of depressions. One type are depressions which are periodically inundated uvalas positioned in-between conical hills. The second type are circular depressions within karst plain that are collapse dolines filled with extensive flood deposits up to several metres thick.

scholarly journals Seepage Patterns in an Earth-Rock Fill Dam Evaluation using Electrical Resistivity Tomography (ERT) Method

2021 ◽  
Vol 930 (1) ◽  
pp. 012090
Author(s):  
Y A Fata ◽  
E Suhartanto ◽  
Hendrayanto ◽  
P Rubiantoro
Keyword(s):  
Electrical Resistivity ◽  
Pore Pressure ◽  
Water Table ◽  
Electrical Resistivity Tomography ◽  
Seepage Water ◽  
Seepage Discharge ◽  
Resistivity Tomography ◽  
Rock Fill ◽  
Resistivity Data ◽  
The Earth

Abstract Seepages in the earth-rock fill dam are usually monitored by pore pressure, seepage water table, and seepage discharge. However, those monitoring are difficult to describe the seepage patterns because they are installed only in certain points. This research evaluated the seepage pattern resulting from Electrical Resistivity Tomography (ERT). The resistivity was measured by installing electrodes upstream of the Dam at every 10 m and downstream at 20 m distances. The seepage pattern was analysed from the resistivity 2 Dimension distribution using the RES2DINV program. The results showed that the seepage pattern resulting from the ERT method’s resistivity data, which was compared with data of surface dam deformation, pore pressure, and seepage water table, could explain the seepage discharge data. Based on those confirming data, the resistivity data of the ERT method was appropriate to explain the seepage pattern in the earth-rock fill dam and can be further utilized for dam stability analysis.

Monitoring the hydrologic behaviour of a mountain slope via time‐lapse electrical resistivity tomography

2009 ◽  
Vol 7 (5-6) ◽  
pp. 475-486 ◽  
Author(s):  
G. Cassiani ◽  
A. Godio ◽  
S. Stocco ◽  
A. Villa ◽  
R. Deiana ◽  
...  
Keyword(s):  
Electrical Resistivity ◽  
Electrical Resistivity Tomography ◽  
Time Lapse ◽  
Mountain Slope ◽  
Resistivity Tomography
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