Codeglia, D., Dixon, Neil, Fowmes, Gary J. and Marcato, G. (2015) Strategies for rock slope failure early warning using acoustic emission monitoring. In: International Symposium on Geohazards and Geomechanics (ISGG2015), Warwick, UK, 10-11 Sep 2015. Published in: IOP Conference Series: Earth and Environmental Science, 26 (1).

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Abstract

Research over the last two decades has led to development of a system for soil slopes monitoring based on the concept of measuring Acoustic Emission (AE). A feature of the system is the use of waveguides installed within unstable soil slopes. It has been demonstrated that the AE measured through this technique are proportional to soil displacement rate. Attention has now been focused on the prospect of using the system within rock materials. The different nature of the slope material to be monitored and its setting means that different acoustic trends are measured, and development of new approaches for their interpretation are required. A total of six sensors have been installed in two pilot sites, firstly in Italy, for monitoring of a stratified limestone slope which can threaten a nationally important road, and secondly in Austria, for monitoring of a conglomerate slope that can endanger a section of the local railway. In this paper an outline of the two trial sites is given and AE data collected are compared with other physical measurements (i.e. rainfall and temperature) and traditional geotechnical instrumentation, to give an overview of recurring AE trends. These include clear AE signatures generated by stress changes linked to increased ground water levels and high energy events generated by freeze-thaw of the rock mass. © Published under licence by IOP Publishing Ltd.

Item Type:	Conference Item (Paper)
Subjects:	Q Science > QE Geology T Technology > TA Engineering (General). Civil engineering (General) T Technology > TE Highway engineering. Roads and pavements
Divisions:	Faculty of Science > Engineering
Library of Congress Subject Headings (LCSH):	Acoustic emission, Landslides, Landslide hazard analysis , Slopes (Soil mechanics)--Stability
Journal or Publication Title:	IOP Conference Series: Earth and Environmental Science
Publisher:	OP Publishing Ltd
Official Date:	2015
Dates:	Date Event 2015 Published
Volume:	26
Number:	1
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Open Access
Funder:	Engineering and Physical Sciences Research Council (EPSRC), Consiglio nazionale delle ricerche (Italy) (CNR), Austria.Österreichische Forschungsförderungsgesellschaft [Austrian Research Promotion Agency ] (FFG), Austria. Österreichische Bundesbahnen [Austrian Federal Railways] (OBB)
Grant number:	(EP/H007261/1 (EPSRC)
Conference Paper Type:	Paper
Title of Event:	International Symposium on Geohazards and Geomechanics (ISGG2015)
Type of Event:	Conference
Location of Event:	Warwick, UK
Date(s) of Event:	10-11 Sep 2015
Related URLs:	Publisher Organisation
Open Access Version:	Publisher
URI:	http://wrap.warwick.ac.uk/id/eprint/85730

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