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Nat. Hazards Earth Syst. Sci., 9, 935-946, 2009
https://doi.org/10.5194/nhess-9-935-2009
© Author(s) 2009. This work is distributed under
the Creative Commons Attribution 3.0 License.
 
23 Jun 2009
Engineering monitoring of rockfall hazards along transportation corridors: using mobile terrestrial LiDAR
M. Lato1, J. Hutchinson1, M. Diederichs1, D. Ball2, and R. Harrap1 1GeoEngineering Centre, Queen's University at Kingston, On., Canada
2Geological Sciences and Geological Engineering, Queen's University at Kingston, On., Canada
Abstract. Geotechnical hazards along linear transportation corridors are challenging to identify and often require constant monitoring. Inspecting corridors using traditional, manual methods requires the engineer to be unnecessarily exposed to the hazard. It also requires closure of the corridor to ensure safety of the worker from passing vehicles. This paper identifies the use of mobile terrestrial LiDAR data as a compliment to traditional field methods. Mobile terrestrial LiDAR is an emerging remote data collection technique capable of generating accurate fully three-dimensional virtual models while driving at speeds up to 100 km/h. Data is collected from a truck that causes no delays to active traffic nor does it impede corridor use. These resultant georeferenced data can be used for geomechanical structural feature identification and kinematic analysis, rockfall path identification and differential monitoring of rock movement or failure over time. Comparisons between mobile terrestrial and static LiDAR data collection and analysis are presented. As well, detailed discussions on workflow procedures for possible implementation are discussed. Future use of mobile terrestrial LiDAR data for corridor analysis will focus on repeated surveys and developing dynamic four-dimensional models, higher resolution data collection. As well, computationally advanced, spatially accurate, geomechanically controlled three-dimensional rockfall simulations should be investigated.

Citation: Lato, M., Hutchinson, J., Diederichs, M., Ball, D., and Harrap, R.: Engineering monitoring of rockfall hazards along transportation corridors: using mobile terrestrial LiDAR, Nat. Hazards Earth Syst. Sci., 9, 935-946, https://doi.org/10.5194/nhess-9-935-2009, 2009.
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