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Delineation of risk area in Log pod Mangartom due to debris flows from the Stoze landslide
Pogorelc, Erika (Author), Demšar, Janez (Mentor) More about this mentor... This link opens in a new window, Mikoš, Matjaž (Author), Fazarinc, Rok (Author), Majes, Bojan (Author)

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Abstract
Članek prikazuje primer določanja ogroženega območja v vasici Log pod Mangartom v dolini reke Koritnice zaradi delovanja možnih drobirskih tokov, ki se lahko v prihodnosti sprožijo na pobočju Stože nad Mangartsko planino. Na podlagi terenskih in laboratorijskih raziskav o drobirskem toku, ki je 17. 11. 2000 opustošil dolino reke Koritnice, smo določili možne scenarije proženja novih drobirskih tokov na pobočju Stože. Za določitev nevarnega območja v dolini reke Koritnice zaradi delovanja drobirskih tokov smo uporabili rezultate enodimenzijskega in dvodimenzijskega modeliranja izbranih drobirskih tokov znane magnitude in različne konsistence. Za določitev ogroženega območja smo upoštevali še obstoječo in možno novo infrastrukturo ter ogroženo območje razdelili v tri cone. Članek predstavlja strokovne podlage, ki jih je zakonodajalec povzel v ustrezni uredbi Vlade Republike Slovenije o pogojih in omejitvah gradnje na območju Loga pod Mangartom, ogroženem zaradi pojava drobirskih tokov. Omenjena uredba je prvi tovrstni akt, sprejet v Republiki Sloveniji.

Language:Unknown
Keywords:pobočni masni premiki, drobirski tokovi, ocena nevarnosti, ocena ogroženosti, ogroženo območje, preventivno varstvo, zakonodaja, pogoji gradnje
Work type:Not categorized (r6)
Organization:FGG - Faculty of Civil and Geodetic Engineering
Year:2007
Publisher:Anton Melik Geographical Institute
Number of pages:171-198
Numbering:47
ISSN:1581-6613
DOI:10.3986/AGS47202 Link is opened in a new window
Views:1232
Downloads:700
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Secondary language

Language:Unknown
Abstract:
The paper shows in detail the case of delineation of risk area in the village of Log pod Mangartom in the Koritnica River valley due to possible debris flows that might in future be triggered on the Stoze slope above the Mangart Mountain pasture. On the basis of field and laboratory investigations of the debris flow of November 17, 2000, that devastated the Koritnica River valley, the possible scenarios of triggering new debris flows on the Stoze slope were investigated. For the determination of debris flow hazard area in the Koritnica River valley, the results of one- and two-dimensional modelling of selected debris flows of known magnitudes and different viscosities were applied. For the determination of risk area, the existing and the possible new infrastructures were taken into account, and the risk area was divided into 3 zones. The paper presents the expert bases summarised by the legislator in the relevant decree issued by the Government of the Republic of Slovenia on the conditions and limitations governing the construction in the debris-flow risk area of Log pod Mangartom. This regulation is the first of its kind in Slovenia.

Keywords:slope mass movements, debris flows, hazard assessment, risk assessment, risk area, preventive protection, legislation, building conditions

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