Determination of long-term deformation behaviours with InSAR data at a dump site of an open-pit coal mine in Turkey

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dc.authoridGUL, YAVUZ/0000-0002-2969-577X
dc.authoridpoyraz, bekir/0000-0003-2832-4632
dc.contributor.authorGul, Yavuz
dc.contributor.authorPoyraz, Bekir
dc.date.accessioned2024-10-26T18:04:11Z
dc.date.available2024-10-26T18:04:11Z
dc.date.issued2024
dc.departmentSivas Cumhuriyet Üniversitesi
dc.description.abstractDump sites with broken overburden layers in surface mines have the risk of instability due to their loose bulk structures. In this study, deformations at a dump site of the Kangal/Kalburc,ayiri open-pit coal mine and their long-term behaviours were revealed with InSAR data for a total period of 4.5 years. Firstly, 9-periods involving different time ranges were created considering the presence of LiCSAR products. Then, the deformation velocities of each period were calculated by LiCSBAS software using LiCSAR products. The area where high deformations were concentrated from the LiCSBAS result products was determined and divided into 4 zones for more detailed evaluations. At the final stage, the period-deformation velocity graphs were drawn separately for each zone with the data obtained using two different approaches from the deformation velocities of all periods, and long-term deformation behaviours were determined. More reliable future behaviour projections could be made considering the current increasing or decreasing trend of deformation behaviours. It was revealed that vertical deformations at the dump site had an increasing trend in the first periods and a decreasing trend in the later periods. Maximum vertical deformation velocities ranging between -111.4 mm/year and -178.0 mm/year in the first 4 months reached the highest values (ranging from -141.9 mm/year to -261.8 mm/year) at the end of two years and decreased to values ranging from -33.0 mm/ year to -44.3 mm/year in the later periods. It was found that horizontal deformation velocities ranged between +0.5 mm/year and +55.4 mm/year in the east-west direction and between -7.0 mm/year and -56.8 mm/year in the west-east direction, were approximately 5 times lower than vertical velocities and did not have a constantly increasing or decreasing trend in any direction. It was observed that deformations exhibited a behaviour resulting from the structural property of the dump bulk material. The results of the evaluations showed that the risk of instability gradually decreased at the dump site. The methodology of this study can enable the determination of similar areas that may pose a threat in a short time, the prioritization of risky areas, the planning of more detailed (c) 2023 COSPAR. Published by Elsevier B.V. All rights reserved.
dc.description.sponsorshipScientific Research Project Fund of Sivas Cumhuriyet University [CUBAP M-2021- 823]; Small and Medium Enterprises Development Organization of Turkey (KOS- GEB) [2, 2020-587-27]; Innovation and Industrial Application Support Program
dc.description.sponsorshipLiCSAR contains modified Copernicus Sentinel data [2017-2021] analyzed by the Centre for the Observation and Modelling of Earthquakes, Volcanoes and Tectonics (COMET) . LiCSAR uses JASMIN, the UK's collaborative data analysis environment (http://jasmin.ac.uk) . The authors would like to thank the Kangal Coal Enterprise officials for their cooperation and Geomine R & D company for MineSAR software support. This study was supported by the Scientific Research Project Fund of Sivas Cumhuriyet University (Project number CUBAP M-2021- 823) . MineSAR software developed by Geomine R&D Software Company was supported by Small and Medium Enterprises Development Organization of Turkey (KOS- GEB) in accordance with the decision no. 2 and numbered 2020-587-27 within the scope of R & D, Innovation and Industrial Application Support Program.
dc.identifier.doi10.1016/j.asr.2023.10.052
dc.identifier.endpage1681
dc.identifier.issn0273-1177
dc.identifier.issn1879-1948
dc.identifier.issue3
dc.identifier.scopus2-s2.0-85176938290
dc.identifier.scopusqualityQ2
dc.identifier.startpage1667
dc.identifier.urihttps://doi.org/10.1016/j.asr.2023.10.052
dc.identifier.urihttps://hdl.handle.net/20.500.12418/28780
dc.identifier.volume73
dc.identifier.wosWOS:001155843700001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofAdvances in Space Research
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectSurface mining
dc.subjectDump site stability
dc.subjectLandslide
dc.subjectDeformation
dc.subjectInSAR (LiCSAR/LiCSBAS)
dc.titleDetermination of long-term deformation behaviours with InSAR data at a dump site of an open-pit coal mine in Turkey
dc.typeArticle

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