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Title: Strategies for rock slope failure early warning using acoustic emission monitoring
Authors: Codeglia, Daniela
Dixon, Neil
Fowmes, Gary John
Marcato, Gianluca
Issue Date: 2015
Publisher: Published under licence by IOP Publishing Ltd
Citation: CODEGLIA, D. ...et al., 2015. Strategies for rock slope failure early warning using acoustic emission monitoring. IN: International Symposium on Geohazards and Geomechanics (ISGG), Warwick, 10-11th Sept. 26: 012028
Series/Report no.: IOP Conference Series: Earth and Environmental Science;26:1
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.
Description: This is an Open Access Article. It is published by IOP under the Creative Commons Attribution 3.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/
Sponsor: The field studies reported in this paper have been funded by a combination of the Engineering and Physical Sciences Research Council (EP/H007261/1), the Research Institute for Geo-Hydrological Protection of the Italian National Research Council (Passo della Morte, Italy), and the VIF 2011 program of the Austrian Research Promotion Agency and The Austrian Railway OeBB (Grossreifling, Austria).
Version: Published
DOI: 10.1088/1755-1315/26/1/012028
URI: https://dspace.lboro.ac.uk/2134/19402
Publisher Link: http://dx.doi.org/10.1088/1755-1315/26/1/012028
ISSN: 1755-1307
Appears in Collections:Conference Papers and Presentations (Architecture, Building and Civil Engineering)

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