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Bulletin of Engineering Geology and the Environment

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01-05-2016 | Original Paper

Stability analysis of a tunnel using LIDAR data and the keyblock method

Authors: Agustín Menéndez-Díaz, Ramón Argüelles-Fraga, Silverio García-Cortés, Celestino Ordóñez-Galán

Published in: Bulletin of Engineering Geology and the Environment | Issue 2/2016

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Abstract

We describe a stability study for a tunnel excavated in a fractured rock mass. The proposed methodology uses automatic and semi-automatic algorithms to extract joint sets from a LIDAR point cloud. Using that information and considering a model of ubiquitous joints, pyramidal and non-pyramidal unstable blocks were identified using the keyblock method. The algorithms used for the stability analysis were implemented in BLOFOR software, which represented the possible location of the blocks in the tunnel in three dimensions and provided information on tunnel stability, including a safety factor for each block.

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Title: Stability analysis of a tunnel using LIDAR data and the keyblock method
Authors: Agustín Menéndez-Díaz
Ramón Argüelles-Fraga
Silverio García-Cortés
Celestino Ordóñez-Galán
Publication date: 01-05-2016
Publisher: Springer Berlin Heidelberg
Published in: Bulletin of Engineering Geology and the Environment / Issue 2/2016
Print ISSN: 1435-9529
Electronic ISSN: 1435-9537
DOI: https://doi.org/10.1007/s10064-015-0761-6

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