Instytut Budownictwa Wodnego
Polskiej Akademii Nauk

Essay #9174 details

ATTRIBUTEVALUE
typeA
database id9174
titleIdentification of the Causes of a Landslide in Koronowo (Polish Lowlands)
authorsZabuski L.1, Kulczykowski M.1, Świdziński W.1
affiliations
pages47 — 56
DOI10.1515/heem-2019-0004
full text linkhttps://www.sciendo.com/article/10.1515/heem-2019-0004
keywordslandslide causes, landslide development, atmospheric conditions, faulty con-struction
abstractsThe paper discusses difficulties of identifying the causes of a landslide. These difficulties areillustrated in the example of a catastrophic landslide on the embankment of the western bankof the Brda River, which affected a bridge abutment of a disused narrow-gauge railway linefrom Bydgoszcz to Koronowo (Polish Lowlands). The railway was closed in 1992, and afterthe removal of the track, the bridge served as a pedestrian overpass. The landslide occurred inFebruary 2011. Investigations revealed that the first signs of the landslide were cracks and sub-sidence that appeared at the embankment crest. Then, an initially slow movement acceleratedsuddenly, resulting in an over 45 m total displacement of the soil mass. The primary passivecause of the landslide movement resulted from the geology of the mass (loose soils underlainby cohesive soils) and from the steep inclination of the embankment surface. Active causes,however, are often ambiguous. In this case, no significant apparent phenomena which couldtrigger the movement occurred in the days preceding its initiation. Therefore, a detailed analy-sis of atmospheric conditions was carried out to identify and explain the causes. It was provedthat the fundamental triggering cause of the landslide was a combination of rainfall, snowfall,snow-melting and air temperature. Moreover, an important cause was a faulty construction ofa ditch with a sewage pipe on the crest of the embankment.
attributes [reviewed] [scientific]
languageen
PART OF
typeC
database id9173
year2019
seriesArchives of Hydro-Engineering and Environmental Mechanics
issueVol. 66, No. 1-2

Kontakt:

  ul. Kościerska 7, 80–328 Gdańsk, POLSKA

   (+48)58-552-3903, fax (+48)58-552-4211

  sekr@ibwpan.gda.pl

Copyright © 2018, IBW PAN w Gdańsku