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.

Characterization and Delineation of Gypsum Karst Geohazards Using 2D Electrical Resistivity Tomography in Culberson County, Texas, USA

2017 ◽  
Vol 22 (4) ◽  
pp. 411-420
Author(s):  
Adam F. Majzoub ◽  
Kevin W. Stafford ◽  
Wesley A. Brown ◽  
Jon T. Ehrhart
Keyword(s):  
Electrical Resistivity ◽  
Electrical Resistivity Tomography ◽  
Chihuahuan Desert ◽  
Two Dimensional ◽  
Resistivity Tomography ◽  
Delaware Basin ◽  
Earth Resistivity ◽  
Array Configuration ◽  
Resistivity Data ◽  
Karst Landforms

The Delaware Basin of W Texas and SE New Mexico is the western subdivision of the Permian Basin and a northern extension of the Chihuahuan Desert. The major evaporite unit within the Delaware Basin is the Castile Formation, which consists of gypsum/anhydrite and is highly susceptible to dissolution and karstification. Manifestations of karst within the Castile outcrop are abundant and include sinkholes, subsidence features and caves, both epigene and hypogene in origin. Land reconnaissance surveys conducted during 2015 and 2016 documented abundant karst landforms near major thoroughfares in Culberson County, Texas. Two dimensional (2D) electrical resistivity surveys were conducted at four sites to characterize and delineate karst related hazards, both laterally and vertically, associated with the road. The electrical resistivity data were collected with a multi-electrode earth resistivity meter using a dipole-dipole array configuration. The resistivity data were then processed using EarthImager2D to produce inverted profile sections of each site. Two-dimensional electrical resistivity tomography was shown to be an effective non-invasive method in detecting solution conduits, soil filled voids, and fractured bedrock in the shallow subsurface in addition to those directly observed on the surface.

scholarly journals Groundwater Pathway Mapping Using Electrical Resistivity Tomography (ERT) Method

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Syazwan Aiman Sufiyanussuari ◽  
◽  
Saiful Azhar Ahmad Tajudin ◽  
Mohammad Izzat Shaffiq Azmi ◽  
Muhammad Nur Hidayat Zahari ◽  
...  
Keyword(s):  
Electrical Resistivity ◽  
Slope Stability ◽  
Electrical Resistivity Tomography ◽  
Resistivity Tomography ◽  
Pathway Mapping ◽  
Resistivity Data ◽  
Resistivity Method ◽  
Electrical Resistivity Method ◽  
Non Destructive

Geophysical electrical resistivity method has been one of the more popular non-destructive method to explore the subsurface. Geophysical electrical resistivity tomography (ERT) subsurface profiling was conducted to map the groundwater path along the embankment. The groundwater path able to decrease the slope stability, thus its need to locate the position for conduct the slope remediation via subsoil drainage. In this study, Terrameter LS2 model, electrodes, cables, battery, and cable connectors were the equipment used for measurement. This study uses cable spread line at 200m with 2.5m spacing between electrodes by using gradient protocol. The resistivity data was analyzed using RES2DINV software. The interpretation of groundwater path is based on the resistivity values less than 100 ohm.m, which is interpreted as saturated materials. This study demonstrates the efficiency of application of electrical resistivity tomography (ERT) in detecting the groundwater pathways. This investigation will help in sustaining the slope stability via indicating the position of groundwater pathways, and thus implementing the slope remediation work.

Water content dynamics at plot scale – comparison of time-lapse electrical resistivity tomography monitoring and pore pressure modelling

2017 ◽  
Vol 544 ◽  
pp. 195-209 ◽  
Author(s):  
Thomas Zieher ◽  
Gerhard Markart ◽  
David Ottowitz ◽  
Alexander Römer ◽  
Martin Rutzinger ◽  
...  
Keyword(s):  
Electrical Resistivity ◽  
Water Content ◽  
Pore Pressure ◽  
Electrical Resistivity Tomography ◽  
Time Lapse ◽  
Resistivity Tomography

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 Application of 3D Electrical Resistivity Tomography for Diagnosing Leakage in Earth Rock-Fill Dam

Engineering ◽  
2016 ◽  
Vol 08 (05) ◽  
pp. 269-275 ◽  
Author(s):  
Xin Zhang ◽  
Mingjie Zhao ◽  
Kui Wang ◽  
Pan Liu ◽  
Huan Liu
Keyword(s):  
Electrical Resistivity ◽  
Electrical Resistivity Tomography ◽  
Resistivity Tomography ◽  
Rock Fill
Sign in / Sign up

Export Citation Format

Share Document