Using ground penetrating radar in levee assessment to detect small scale animal burrows

Chlaib, Hussein Khalefa; Mahdi, Hanan; Al‐Shukri, Haydar; Su, Mehmet Mert; Catakli, Aycan; Abd, Najah

doi:10.1016/j.jappgeo.2014.01.011

Cited by 56 publications

(32 citation statements)

References 7 publications

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“…Such degradation of earthen dams and levees have been observed in the field, and advanced methods for the continuous monitoring of these structures have been proposed [Chlaib et al, 2014;Perri et al, 2014]. Only a few papers, however, have explicitly and mechanistically connected piping erosion responsible for the failure of earthen structures to preferential flow extending along paths developed by burrowing animals [Carroll, 1949;Masannat, 1980;Bayoumi and Meguid, 2011].…”

Section: Introductionmentioning

confidence: 99%

Evidence of an emerging levee failure mechanism causing disastrous floods in Italy

Orlandini

Moretti

Albertson

2015

Water Resources Research

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A levee failure occurred along the Secchia River, Northern Italy, on 19 January 2014, resulting in flood damage in excess of $500 million. In response to this failure, immediate surveillance of other levees in the region led to the identification of a second breach developing on the neighboring Panaro River, where rapid mitigation efforts were successful in averting a full levee failure. The paired breach events that occurred along the Secchia and Panaro Rivers provided an excellent window on an emerging levee failure mechanism. In the Secchia River, by combining the information content of photographs taken from helicopters in the early stage of breach development and 10 cm resolution aerial photographs taken in 2010 and 2012, animal burrows were found to exist in the precise levee location where the breach originated. In the Panaro River, internal erosion was observed to occur at a location where a crested porcupine den was known to exist and this erosion led to the collapse of the levee top. This paper uses detailed numerical modeling of rainfall, river flow, and variably saturated flow in the levee to explore the hydraulic and geotechnical mechanisms that were triggered along the Secchia and Panaro Rivers by activities of burrowing animals leading to levee failures. As habitats become more fragmented and constrained along river corridors, it is possible that this failure mechanism could become more prevalent and, therefore, will demand greater attention in both the design and maintenance of earthen hydraulic structures as well as in wildlife management.

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Section: Introductionmentioning

confidence: 99%

Evidence of an emerging levee failure mechanism causing disastrous floods in Italy

Orlandini

Moretti

Albertson

2015

Water Resources Research

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“…In assessing changes in travel time two-way (between the emitter and reflector to the receiver) and the magnitude of the reflection (absolute magnitude) alon g a profile, the characteristics of the reflector can be identified (equations below for non-magnetic materials). The speed of the wave prop a g a tion mainly depends on electromagnetic properties of the material, and these are governed by the water content [13][14][15][16].…”

Section: Internal Structure Of the Dam From Geophysical Observation Gmentioning

confidence: 99%

“…The higher the frequency, the depth of the penetration is smaller but the resolution is higher [14]. The depth of penetration also varies depending on the water content [14,16,36]. Neal [13] did an excellent review on those complexities in sedimentology.…”

Section: Internal Structure Of the Dam From Geophysical Observation Gmentioning

confidence: 99%

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Auscultation of a Dam for Mining Restoration in Quebec, Canada

Yaya¹,

Cheng²

2016

J Civil Environ Eng

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The tailing management is a long term concern for environment and social security. Following the discovery of a new gold mineralization, a mining company aims at reusing one of tailings storage facility at the mining site. However, there is a small treated water reservoir (polishing pond) downstream of the Northwest dam. It is therefore important to know the present state of the Northwest dam's internal structure. Geophysical methods of electrical resistivity and georadar were used for the auscultation of the Northwest dam. Numerical models were subsequently used to assess the geotechnical behavior of the dam in different deposition situations by simulating the restoration.The image processing results of georadar data show a layered structure near the surface. Changes in electrical resistivity offer deeper information than georadar. The lateral variability of the electrical resistivity corresponds to heterogeneity within each layer. As we cannot collect samples for the characterization of materials, the geophysical interpretation results help to estimate the compositional structure of the dam; ultimately it helps in numerical modeling on the safety factor estimation.

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“…Because the dielectric constant of air-filled voids (i.e., tunnels) provides a marked contrast to the surrounding soil, ground-penetrating radar (GPR) has been recognized as a useful tool to investigate the structural damage that animal burrows cause to levees and dams (Di Prinzio et al, 2010;Chlaib et al, 2014) and for applications such as archaeology and forensic investigations. However, there have been few reports of the use of GPR in 1 University of Adelaide.…”

Section: Ground-penetrating Radar For Wildlife Researchmentioning

confidence: 99%

Using near-surface geophysics to assist with the management of southern hairy-nosed wombats (Lasiorhinus latifrons) in South Australia

et al. 2014

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Ground-penetrating radar (GPR) was used to map the warrens of southern hairy-nosed wombats (Lasiorhinus latifrons) in South Australia in a variety of soil types. Although farmers often cull wombats to reduce their impact on infrastructure and agriculture, their population dynamics are poorly understood, and all stakeholders agree that better information is required. Warrens were mapped successfully at four locations, providing insight into how soil type and local conditions affect burrow morphology and how these can influence population abundance. The use of GPR has provided the first noninvasive means of mapping wombat warrens and the first opportunity to conduct follow-up research to determine how warrens might change over time in response to changes in population.

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Using ground penetrating radar in levee assessment to detect small scale animal burrows

Cited by 56 publications

References 7 publications

Evidence of an emerging levee failure mechanism causing disastrous floods in Italy

Evidence of an emerging levee failure mechanism causing disastrous floods in Italy

Auscultation of a Dam for Mining Restoration in Quebec, Canada

Using near-surface geophysics to assist with the management of southern hairy-nosed wombats (Lasiorhinus latifrons) in South Australia

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