Detection of Leakage Areas in an Earth Embankment from GPR Measurements and Permeability Logging

Antoine, Raphaël; Fauchard, Cyrille; Fargier, Yannick; Durand, Édouard

doi:10.1155/2015/610172

Cited by 27 publications

(22 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The failure of flood defence systems is costly in terms of both human and financial impacts, and associated risks need to be mitigated by means of cost-effective methodologies of stability assessment. Many geophysical methods have been applied to earthen levee and dam condition assessments (e.g., Niederleithinger et al 2012), including DC resistivity techniques (e.g., Inazaki and Sakamoto 2005), low-frequency electromagnetic profiling (e.g., Fauchard and Mériaux 2007;Niederleithinger et al 2012), ground-penetrating radar (e.g., Carlsten, Johansson, and Wörman 1995;Antoine et al 2015), and seismic methods (e.g., Cardarelli, Cercato, and Di Filippo 2010;Cardarelli, Cercato, and De Donno 2014). DC electrical resistivity imaging (ERI) is widely applied to mapping the inner structure of dikes, as well as to detecting and monitoring seepage phenomena (e.g., Johansson and Dahlin 1996;Sjödahl et al 2008;Weller et al 2014).…”

Section: Introductionmentioning

confidence: 99%

A cost‐effective 3D electrical resistivity imaging approach applied to dike investigation

Jodry¹,

Lopes²,

Fargier

et al. 2016

Near Surface Geophysics

Self Cite

View full text Add to dashboard Cite

Although DC electrical resistivity imaging is widely applied to dike investigation, either rapid 2D or high‐resolution 3D approaches fail to address actual needs. An intermediate electrical resistivity imaging approach referred to as “3D‐“ is introduced in this paper. The methodology is based on existing tools, and it offers useful and sufficiently reliable 3D images of the investigated structure within a cost‐effective and flexible procedure. The survey design, the model discretisation, and the thorough integration of a priori information are the main phases of this procedure. To demonstrate the benefits and limitations of this approach, it is applied to an existing stretch of embankment levee along the Loire River. A numerical study was carried out both on synthetic and real data to assess the 3D imaging capability of the approach and the influence of prior information on the inversion outputs. The important role of a priori information is shown to be even more essential here. The results demonstrate the efficiency and versatility of the 3D‐ approach for reliable and cost‐effective investigations of long dikes.

show abstract

Section: Introductionmentioning

confidence: 99%

A cost‐effective 3D electrical resistivity imaging approach applied to dike investigation

Jodry¹,

Lopes²,

Fargier

et al. 2016

Near Surface Geophysics

Self Cite

View full text Add to dashboard Cite

show abstract

“…This proves that the GPR profiles have depicted the crucial zones in the dam body, identified the water seepage paths from the reservoir to the downstream side of the dam, and assessed the seepage rate. Along with cores, visual inspection, and permeability logging performed by an updated drilling system, GPR observations obtained on an earth embankment are utilized to detect decompressed zones associated with leakage areas visible at the foot of the downstream slope and locate potential voids underneath the paved revetment [16]. This multidisciplinary method, which complies with the dyke inspection methodology, was found to be effective in assessing earth embankments.…”

Section: Introductionmentioning

confidence: 99%

Dam Leakage Detection by Borehole Radar: A Case-History Study

Liu

Wang

et al. 2019

Remote Sensing

View full text Add to dashboard Cite

A borehole radar investigation was performed at the Sanzuodian reservoir, Chifeng, China to assess possible leakage paths located in the deep dam foundation. The key methodologies used include both single-hole reflection and cross-hole radar tomography, which make a high-resolution identification of the hydraulic connection paths between upstream and downstream sides possible. The leakage paths are characterized by direct wave loss due to high electromagnetic attenuation in the single-hole reflection profile and the nearly horizontal-banded low-velocity zone in the cross-hole velocity tomography due to possible large internal erosion. Meanwhile, some small structures inside the dam, including the core wall thickness changing point, the connecting point between asphalt and concrete walls, and the contacting interface between the dry and the water-saturated formations can be identified from the single-hole reflection profile clearly. Interpreted leakage paths are proven by the water flow measurement. Borehole radar is a useful high-resolution tool, suitable for deep leakage detection and evaluation.

show abstract

“…The GPR method in the study flood embankments has been extensively described in the scientific literature (Gołębiowski and Małysa 2018a, b;Anchuela and Pueyo 2018;Lój et al 2018;Tanajewski and Bakuła 2016;Perri et al 2014;Gołębiowski et al 2012;Słowik 2011;Xu 2010;Di Prinzio et al 2010;Jarzyna 2010;Mori 2009;Marcak et al 2005). Antoine et al (2015) experimented the application of GPR method in the study and monitoring of the lateral canal of the Loire river (Saint Firmin, 80 km South East of Orléans). The results led to the delineation of weak unconsolidated zone within the embankment.…”

Section: Introductionmentioning

confidence: 99%

Correction to: Ground penetrating radar use in flood prevention

Tomecka‐Suchoń

2019

Acta Geophys.

View full text Add to dashboard Cite

The main goal of the work is to create an automatic method of locating weak zones within flood embankments structure based on ground penetrating radar (GPR) measurements. The presented research shows the possibilities of using advanced methods of GPR signal processing and its analysis with the help of signal attributes for detecting zones threatening the stability of the structure of flood embankments. Obtained results may help in quick detection of potential weak zones of the embankments, and consequently give means to ameliorate them, which may prevent damage to the embankments during rise in the level of river water. The presented analyses were carried out on GPR data obtained for the flood banks of the Rudawa river (Kraków, Poland) in the area of their visible degradation. The use of signal attributes such as energy, instantaneous frequency, similarity, curvature gradient and dominant frequency, allowed initial indication of anomalous zones threatening the stability of embankment. Advanced processing supported by the use of advanced filters such as GLCM, Grubbs and Convolve Prewitt helped in the analysis of the structure of the embankments. Artificial neural networks (ANN) in the supervised and unsupervised variants were used to perform the automatic classification of weakened zones within the embankments. The results demonstrated the usefulness of GPR geophysical method through integration of ANN in the analysis of the data.

show abstract

Detection of Leakage Areas in an Earth Embankment from GPR Measurements and Permeability Logging

Cited by 27 publications

References 15 publications

A cost‐effective 3D electrical resistivity imaging approach applied to dike investigation

A cost‐effective 3D electrical resistivity imaging approach applied to dike investigation

Dam Leakage Detection by Borehole Radar: A Case-History Study

Correction to: Ground penetrating radar use in flood prevention

Contact Info

Product

Resources

About