Assessment of Dukan Landslides, West of Sulaimani City, the Kurdistan Region, Northeast Iraq

Four landslides of different sizes had occurred in 2012 along the main paved road between Dukan – Surdash. The landslides are within the Kometan Formation, which consist mainly of well bedded and jointed marly limestone. The landslides are located in a narrow syncline trending NW – SE in between Kha...

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Main Authors: Varoujan K. Siakian, Sarhang A. Omer, Diyar Salah M.Khalil
Format: Article
Language:English
Published: Univeristy of Kurdistan Hewler 2018-06-01
Series:UKH Journal of Science and Engineering
Subjects:
Online Access:https://journals.ukh.edu.krd/index.php/ukhjse/article/view/28
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author Varoujan K. Siakian
Sarhang A. Omer
Diyar Salah M.Khalil
author_facet Varoujan K. Siakian
Sarhang A. Omer
Diyar Salah M.Khalil
author_sort Varoujan K. Siakian
collection DOAJ
description Four landslides of different sizes had occurred in 2012 along the main paved road between Dukan – Surdash. The landslides are within the Kometan Formation, which consist mainly of well bedded and jointed marly limestone. The landslides are located in a narrow syncline trending NW – SE in between Khalikan and Kalo anticlines. The main reason of the landslides is the haphazard road cuts during the road construction and widening of the road latter on. Another reason that had accelerated the landslide is the fluctuation of water level in Dukan reservoir. The water level reaches the down slope area of the landslides. Satellite imagery was used to study the parameters of the landslides and have performed a field work to confirm the acquired parameters and deduced other indications of the landslides, besides checking their stability. Landslide Possibility Study was performed using Landslide Possibility Index at each landslide area and have found that the whole area is unstable showing High possibility of re-failure. Sereographic presentation for the three landslides was used to show the relation between bedding and joint planes as well the road cuts trends.  It was concluded that in next rainy season, the whole area may form a severe geological hazard if necessary precautions are not considered. Therefore, urgent precautions were recommended to keep the slopes alongside the road cur as stable as possible.
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spelling doaj.art-9e4eb59bc44d45e8b081b41380c4b2462022-12-21T18:34:38ZengUniveristy of Kurdistan HewlerUKH Journal of Science and Engineering2520-77922018-06-012110.25079/ukhjse.v2n1y2018.pp28-38Assessment of Dukan Landslides, West of Sulaimani City, the Kurdistan Region, Northeast IraqVaroujan K. Siakian0Sarhang A. Omer1Diyar Salah M.Khalil2Department of Natural Resources Engineering & Management, School of Science and Engineering, University of Kurdistan Hewler, Kurdistan Region – F.R. Iraq1Department of Natural Resources Engineering & Management, School of Science and Engineering, University of Kurdistan Hewler, Kurdistan Region - F.R. IraqDepartment of Natural Resources Engineering & Management, School of Science and Engineering, University of Kurdistan Hewler, Kurdistan Region – F.R. IraqFour landslides of different sizes had occurred in 2012 along the main paved road between Dukan – Surdash. The landslides are within the Kometan Formation, which consist mainly of well bedded and jointed marly limestone. The landslides are located in a narrow syncline trending NW – SE in between Khalikan and Kalo anticlines. The main reason of the landslides is the haphazard road cuts during the road construction and widening of the road latter on. Another reason that had accelerated the landslide is the fluctuation of water level in Dukan reservoir. The water level reaches the down slope area of the landslides. Satellite imagery was used to study the parameters of the landslides and have performed a field work to confirm the acquired parameters and deduced other indications of the landslides, besides checking their stability. Landslide Possibility Study was performed using Landslide Possibility Index at each landslide area and have found that the whole area is unstable showing High possibility of re-failure. Sereographic presentation for the three landslides was used to show the relation between bedding and joint planes as well the road cuts trends.  It was concluded that in next rainy season, the whole area may form a severe geological hazard if necessary precautions are not considered. Therefore, urgent precautions were recommended to keep the slopes alongside the road cur as stable as possible.https://journals.ukh.edu.krd/index.php/ukhjse/article/view/28IraqKurdista RegionLandslideMan-made hazardPlane slideRoad cut
spellingShingle Varoujan K. Siakian
Sarhang A. Omer
Diyar Salah M.Khalil
Assessment of Dukan Landslides, West of Sulaimani City, the Kurdistan Region, Northeast Iraq
UKH Journal of Science and Engineering
Iraq
Kurdista Region
Landslide
Man-made hazard
Plane slide
Road cut
title Assessment of Dukan Landslides, West of Sulaimani City, the Kurdistan Region, Northeast Iraq
title_full Assessment of Dukan Landslides, West of Sulaimani City, the Kurdistan Region, Northeast Iraq
title_fullStr Assessment of Dukan Landslides, West of Sulaimani City, the Kurdistan Region, Northeast Iraq
title_full_unstemmed Assessment of Dukan Landslides, West of Sulaimani City, the Kurdistan Region, Northeast Iraq
title_short Assessment of Dukan Landslides, West of Sulaimani City, the Kurdistan Region, Northeast Iraq
title_sort assessment of dukan landslides west of sulaimani city the kurdistan region northeast iraq
topic Iraq
Kurdista Region
Landslide
Man-made hazard
Plane slide
Road cut
url https://journals.ukh.edu.krd/index.php/ukhjse/article/view/28
work_keys_str_mv AT varoujanksiakian assessmentofdukanlandslideswestofsulaimanicitythekurdistanregionnortheastiraq
AT sarhangaomer assessmentofdukanlandslideswestofsulaimanicitythekurdistanregionnortheastiraq
AT diyarsalahmkhalil assessmentofdukanlandslideswestofsulaimanicitythekurdistanregionnortheastiraq