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Influence of the Geometry Alteration of the Landslide Slope on its Stability: A Case Study in the Carnian Alps (Italy)

Zabuski L., Bossi G., Marcato G.

Archives of Hydro-Engineering and Environmental Mechanics

2017

Vol. 64, nr 2

101--114

The paper presents the principles of the slope reprofiling and proves the effectiveness of this stabilization measure. The case study of two adjacent landslides in the National Road 52 “Carnica” in the Tagliamento River valley, the Carnian Alps (462304900N, 124205100E) are the example allowing for illustration of this approach. The phenomena have been studied for more than a decade, making it possible to carry out a detailed geological and geomorphological reconstruction. That was done on the basis of a large amount of monitoring data collected during that period. Since the landslides are threatening an important road, countermeasure works to ameliorate the stability conditions of the slides need to be designed. The paper focuses on the creation of a numerical model consistent with monitoring data and capable of reconstructing the dynamics of both landslides. Two cross-sections, one for each landslide, were selected for the analysis. The geometry of the slip surface was determined on the basis of control points, such as slip surface readings from inclinometers, and geomorphological evidence for the contour. The FLAC2D code was used to evaluate the current stability of these landslides and to determine the effectiveness of changing the slope geometry by removing material from the upper part of the slope and putting it to the lowest part as reinforcement.

Globalna platforma badań procesów osuwiskowych. Wnioski z Pierwszego Światowego Forum Osuwiskowego w Japonii

Bednarczyk Z.

Górnictwo Odkrywkowe

2009

R. 50, nr 1

50-52

Przedstawiono doświadczenia oraz wyniki badań zaprezentowane na Pierwszym Światowym Forum Osuwiskowym w Japonii zorganizowanym przez International Consortium on Landslides (ICL) oraz Organizację Narodów Zjednoczonych. Forum odbywało się w United Nations (ONZ) University w Tokio w Japonii, w dniach 18-22 listopada 2008. Zamiarem forum I było utworzenie globalnej platformy dotyczącej zmniejszenia ryzyka osuwiskowego wspieranej przez ONZ, rządy i służby geologiczne wielu krajów świata, uniwersytety, firmy prywatne oraz osoby prywatne, które chcą wnieść wkład w zakresie przeciwdziałania i zmniejszenia ryzyka procesów osuwiskowych. W Forum uczestniczyło 450 delegatów z 49 krajów krajów świata. Autor artykułu miał okazję uczestniczyć w nim jako jedyny przedstawiciel naszego kraju dzięki specjalnemu stypendium ONZ.

In the paper conclusions and results from investigations presented on The First World Landslide Forum are presented. Forum was organized by the International Consortium on Landslides (ICL) and The United Nations in Japan on Nov. 18-22. 2008. It was held Forum at the United Nations University in Tokyo, as a global platform for reducing landslide risk supported by United Nations, governments, geological Surveys, universities, private firms and individuals from many countries whose would like to contribute into landslide counteraction and landslide risk lowering. In the Forum 450 delegates from 49 countries were participating. Author of this paper have opportunity to participate in the forum as a one and only delegate from Poland due to the special financial support of the United Nations.