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SUMMARY:Slope monitoring using optical fibre technology - Koson Janmonta (
 CUED)
DTSTART:20090306T163000Z
DTEND:20090306T173000Z
UID:TALK16298@talks.cam.ac.uk
CONTACT:Zelda Stuck
DESCRIPTION:The failure of a slope could either be an unacceptable service
 ability condition or in the extreme\, collapse. When complete collapse occ
 urs the result may be damage to property\, injury or death and adverse eff
 ects on a variety of resources. Transport infrastructure is at risk when i
 t is constructed on slopes that are potentially unstable. For example\, ro
 adways can be affected after a landslide event.\n\nMany of the engineering
  design solutions to restrict movements\, or in extreme cases prevent comp
 lete collapse\, reflect geotechnical uncertainties and hence monitoring is
  essential. The information obtained from monitoring slopes provides a mea
 ns of understanding \npotential slope movements\, both in relation to the 
 mechanism involved and the effectiveness of any slope stabilisation measur
 es.  Although a wide range of techniques exist for monitoring slopes\, the
  task is sometimes complicated by the scale of potentially unstable ground
 \, the location and the unpredictability of when movements may occur.\n\nT
 his research aims to examine the applicability of a Brillouin optical time
 -domain reflectometry (BOTDR) sensor monitoring system in monitoring groun
 d movements along highway slopes. A unique advantage of this technology is
  the ability to measure the strain along the full length of an optical fib
 re cable\, up to 10 km\, i.e. to give distributed readings. From measureme
 nts of this form (i.e. continuous movement profiles) possible precursors o
 f movements can be identified.\n\nThe challenge of this research was to in
 vestigate the best way of installing the optical fibre to the slope so tha
 t effective monitoring can be achieved.\n
LOCATION:Engineering Department - LR6
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