Long term displacement observation of the Atatürk Dam, Turkey by multi-temporal InSAR analysis

Bayık, Çağlar; Abdikan, Saygın; Arıkan, Mahmut

doi:10.1016/j.actaastro.2021.09.022

Cited by 13 publications

(6 citation statements)

References 25 publications

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“…In recent years, vertical and eastward movements were decomposed, with a main vertical component and negligible movements in the East-West direction. These findings align with other investigations on earth-fill dams constructed between 1980 and 2000, such as the Ataturk Dam, where the deformation velocity decreased from 8 mm/year during the 1990s to 5 mm/year between 2016 and 2020 [54]. The Mosul Dam also exhibited comparable deformation, with an average velocity of 6 mm/year between 2014 and 2019 [55].…”

Section: Discussionsupporting

confidence: 89%

MT-InSAR and Dam Modeling for the Comprehensive Monitoring of an Earth-Fill Dam: The Case of the Benínar Dam (Almería, Spain)

et al. 2023

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The Benínar Dam, located in Southeastern Spain, is an earth-fill dam that has experienced filtration issues since its construction in 1985. Despite the installation of various monitoring systems, the data collected are sparse and inadequate for the dam’s lifetime. The present research integrates Multi-Temporal Interferometric Synthetic Aperture Radar (MT-InSAR) and dam modeling to validate the monitoring of this dam, opening the way to enhanced integrated monitoring systems. MT-InSAR was proved to be a reliable and continuous monitoring system for dam deformation, surpassing previously installed systems in terms of precision. MT-InSAR allowed the almost-continuous monitoring of this dam since 1992, combining ERS, Envisat, and Sentinel-1A/B data. Line-of-sight (LOS) velocities of settlement in the crest of the dam evolved from maximums of −6 mm/year (1992–2000), −4 mm/year (2002–2010), and −2 mm/year (2015–2021) with median values of −2.6 and −3.0 mm/year in the first periods (ERS and Envisat) and −1.3 mm/year in the Sentinel 1-A/B period. These results are consistent with the maximum admissible modeled deformation from construction, confirming that settlement was more intense in the dam’s early stages and decreased over time. MT-InSAR was also used to integrate the monitoring of the dam basin, including critical slopes, quarries, and infrastructures, such as roads, tracks, and spillways. This study allows us to conclude that MT-InSAR and dam modeling are important elements for the integrated monitoring systems of embankment dams. This conclusion supports the complete integration of MT-InSAR and 3D modeling into the monitoring systems of embankment dams, as they are a key complement to traditional geotechnical monitoring and can overcome the main limitations of topographical monitoring.

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Section: Discussionsupporting

confidence: 89%

MT-InSAR and Dam Modeling for the Comprehensive Monitoring of an Earth-Fill Dam: The Case of the Benínar Dam (Almería, Spain)

et al. 2023

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“…The main objective of studying the difference between the observations is to detect unexpected horizontal and vertical deformations at an early stage, and thus assess the infrastructure and integrity of the barrage. Where the results of measurements of deformations is important for engineering installations and constitute the basis for evaluating the safety of these facilities [Bayik et al, 2021;Goff et al, 2021], thus addressing the deformations at an early time, before it is too late. The cracks and movements in the elements of the facility may lead to its exit from service or may lead to its collapse, causing major disasters and human disasters, especially in dams and barrages [Goff et al, 2021].…”

Section: Introductionmentioning

confidence: 99%

Using GPS and Run-Off Rates Data to Study the Close Monitoring Networks for Dams – Al-Kut Barrages as a Case Study

Saiwan¹,

Hamdoon²,

Al-Zuhairy³

2023

Ecol. Eng. Environ. Technol.

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The dams and barrages are among the most important engineering structures for water supply, flood control, agriculture, and electric power generation. Monitoring the horizontal and vertical deformation of the barrage's body and identifying the risk it's so important to maintain the dam and also to reduce costs. Where in this research the case of the Al-Kut barrage is studied by observing the body of the barrage using surveying devices through (GPS) by taking spatial observations of the two networks of stations, the horizontal and vertical networks. Then compare them with the observations of previous years to determine the magnitude of the deformation through the differences between the observations. By calculating the differences and finding the displacement of surveying observations from 2014 to 2021, It was found that the highest and least displacements in the horizontal stations is 50 and 11 mm, respectively. Also, for the vertical network observations, the highest and lowest differences in elevation were 11and 3 mm, respectively. Where, the results showed a slight deformation within the acceptable limits. In addition, the annual and monthly discharge rates for a number of years were evaluated to observe the extent of the impact of run-off rates on increasing sedimentation at the upstream of Al-Kut barrage. It was found that the accumulation of sediment on the river's left bank affected the gates' efficiency and put pressure on the other gates, which led to some operational issues in the barrage gates.

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“…Articles [10,11] present studies of the largest dam -Ataturk (Turkey) to determine the magnitude and direction of radial deformations using ERS, ENVISAT and Sentinel-1 satellite images. It is revealed that the movement from east to west is higher than the vertical movement.…”

Section: Introductionmentioning

confidence: 99%

Seismic stress state of a high earth dam using the spectroscopic method

Salyamova,

Toshmatov Alimjon ogli,

Nishonov

et al. 2023

E3S Web Conf.

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The reliable and safe operation of earth dams located in seismic regions of the Republic of Uzbekistan requires engineers and researchers to constantly improve the design normative methods for their calculation in order to identify safety margins and stability under various types of loads. A method is proposed for calculating the seismic stress state of an earth dam (on the example of the Pskem HPP being designed), based on the spectral method, in accordance with the current standards for the design of hydro-technical structures in seismic areas. Structural and piecewise non-homogeneous physical and mechanical characteristics of soils of the structure body were provided by Hydroproject JSC of the Republic of Uzbekistan. The results of the calculations show that under a horizontal seismic impact, the dam performs transverse oscillations. It was determined that the maximum vertical stresses are observed in the lower part of the upper slope, where the maximum hydrostatic pressure is reached. The maximum shear stresses appear at the base of the dam and on the surface of the downstream slope, where the risk of loss of strength under shear is greater..

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Long term displacement observation of the Atatürk Dam, Turkey by multi-temporal InSAR analysis

Cited by 13 publications

References 25 publications

MT-InSAR and Dam Modeling for the Comprehensive Monitoring of an Earth-Fill Dam: The Case of the Benínar Dam (Almería, Spain)

MT-InSAR and Dam Modeling for the Comprehensive Monitoring of an Earth-Fill Dam: The Case of the Benínar Dam (Almería, Spain)

Using GPS and Run-Off Rates Data to Study the Close Monitoring Networks for Dams – Al-Kut Barrages as a Case Study

Seismic stress state of a high earth dam using the spectroscopic method

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