DBPapers
DOI: 10.5593/sgem2011/s02.120

GEOTECHNICAL MONITORING OF ROAD EMBANKMENT IN LANDSLIDE AREA BY TIME DOMAIN REFLECTOMETRY TECHNOLOGY

AUTHOR/S: M. DRUSA, V. CHEBEN
Monday 1 August 2011 by Libadmin2011

11th International Multidisciplinary Scientific GeoConference SGEM2011, www.sgem.org, SGEM2011 Conference Proceedings/ ISSN 1314-2704, June 20-25, 2011, Vol. 1, 473-480 pp

ABSTRACT

Region of West Carpathians Mountains is the territory, where app. 5.25% of total area of coverage are landslides. Therefore our research team has started implementation of TDR technology (Time Domain Reflectometry) for measurement of slope underground
movements. However this technology offers implementation for a variety of uses.
Continuing development of monitoring using this method of measurement has been implemented in one selected locality where new national road was built across the existing landslide. In this practical case of installed geotechnical monitoring elements
can be described importance of monitoring to final design of route in landslide area and also there can be presented new way of measurement of piezometric level of underground water by TDR apparatus.

New shifting of route II/217 in Považská Bystrica is located on northwest part of Slovakia and was built as the new leg of motorway D1 section II. The present dynamic alternative of the classic way of monitoring is measurement by pulsing technology -
Time Domain Reflectometry (TDR). Thanks to universality of this technology and its permanent improvement is now applicable in geotechnical engineering. It is useful for measurement of progress of deformation, but it also allows observing ground water
pressure and moisture content of soils. The presented article describes advantages of this technology which was combined by classical monitoring methods used for geotechnical monitoring of road embankment built up in area of old landslide.

Keywords: TDR monitoring, TDR piezometer, inclinometer, slope movement, landslide monitoring.

PAPER 2011/s02.120: GEOTECHNICAL MONITORING OF ROAD EMBANKMENT IN LANDSLIDE AREA BY TDR TECHNOLOGY

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