The important issues of levees monitoring with special attention to thermal-monitoring method application
Author
Radzicki, Krzysztof
Published in
South Baltic Conference on New Technologies and Recent Developments in Flood Protection, Gdańsk, 5-6 June 2014
Release date
2014
Place of publication
[Gdańsk]
Publisher
[s.n.]
Language
English
Comments
DredgDikes : South Baltic Conference on New Technologies and Recent Developments in Flood Protection, Gdańsk 5-6.06.2014
DredgDikes : Współczesne Technologie i Najnowsze Osiągnięcia w Dziedzinie Ochrony Przeciwpowodziowej, Gdańsk 5-6.06.2014
Keywords
flood protection dike, dike safety, internal erosion, seepage, thermal monitoring, methodology of dike monitoring, fiber optic distributed temperature sensing
Abstract
Minimisation of the probability of a rupture of a flood protection dike is of primary importance when it can lead to significant material and/or social losses. Erosion processes are one of the major factors which cause dike collapses. In respect of the detection and assessment of the development of these processes, the “classical” methods used to date have very substantial limitations. This problem is discussed, inter alia, in the Introduction to this article. This concerns, in particular, the problem of the monitoring of a dike during a high water event. The linear thermal monitoring method, which has been intensively developed, especially in recent years, including the application of fiber optics distributed temperature sensing, has introduced a new quality to this issue. Its key advantages include continuous monitoring all along the structure, early and high spatial accuracy detection of the seepage and erosion processes and the possibility of analysing and assessing their development. This method has been extensively used for many years to monitor earth dams, whereas it is only recently that it has been implemented to monitor flood control dikes, in relation to the need to develop methods for data analysis and interpretation taking into account the manner of operation of flood control dikes. This article describes the basic features of thermal monitoring and important aspects of its implementation for flood control dikes monitoring. It proposes elements of a methodology which combines a joint application of the methods used to date and the thermal monitoring method.
PKT classification
271951 Geofizyka stosowana (metody pomiarów wielkości fizycznych w geologii, hydrogeologii, geologii inżynierskiej i poszukiwaniu złóż kopalin użytecznych)
