Extraction of Rock Mass Structural Data from High Resolution Laser Scanning Products
With the aim of extracting 3D structural information of rock masses from high resolution remote sensing data, a Matlab tool, called DiAna (Discontinuity Analysis) has been compiled.
In particular, the proposed approach is able to semi-automatically retrieve some relevant rock mass parameters, namely orientation, number of sets, spacing/frequency, persistence, block size and scale dependent roughness, by analyzing high resolution point clouds acquired from terrestrial or aerial laser scanners.
The proposed method has been applied to different case studies, and the obtained properties have been compared with the results from traditional geomechanical surveys.
These applications demonstrated DiAna’s ability to investigate rock masses characterized by irregular block shapes, and suggest applications in the field of engineering geology and emergency management, when it is often advisable to minimize survey time in dangerous environments and, in the same time, it is necessary to gather all the required information as fast as possible.
KeywordsLaser scanner Point cloud Geomechanical survey Discontinuity DiAna
- Barberi F, Innocenti F (1966) I fenomeni di metamorfismo termico nelle rocce peridotitico-serpentinose dell’aureola del Monte Capanne (Isola d’Elba). Period Mineral 25:735–768Google Scholar
- Barton NR (1976) The shear strength of rock and rock joints. Int J Rock Mech Min Sci Geomech Abstr 13:1–24Google Scholar
- Barton NR, Bandis S (1982) Effects of block size on the shear behavior of jointed rock. In: Proceedings of the 23rd U.S. symposium on rock mechanics, Berkeley. Keynote lecture, pp 739–760Google Scholar
- Casagli N, Pini G (1993) Analisi cinematica della stabilità in versanti naturali e fronti di scavo in roccia. In; Proceedings 3° Convegno Nazionale dei Giovani Ricercatori in Geologia Applicata, Potenza (in Italian)Google Scholar
- Goodman RE, Bray JW (1976) Toppling of rock slopes. In: Proceedings of the special conference on rock engineering for foundations and slopes, vol 2. ASCE, Boulder, pp 201–234Google Scholar
- Hoek E, Bray JW (1981) Rock slope engineering, revised 3rd edn. Institution of Mining and Metallurgy, LondonGoogle Scholar
- Hudson JA, Harrison JP (1997) Engineering rock mechanics. Pergamon, OxfordGoogle Scholar
- Jaboyedoff M, Metzger R, Oppikofer T, Couture R, Derron MH, Locat J, Turmel D (2007) New insight techniques to analyze rock-slope relief using DEM and 3D-imaging cloud points: COLTOP-3D software. In: Proceedings of 1st Canada – U.S. rock mechanics symposium, Vancouver, 27–31 May 2007, pp 61–68Google Scholar
- Lombardi L (2007) Nuove tecnologie di rilevamento e di analisi di dati goemeccanici per la valutazione della sicurezza. Ph.D. thesis, Università degli studi di Firenze, in ItalianGoogle Scholar
- Lombardi L, Casagli N, Gigli G, Nocentini M (2006) Verifica delle condizioni di sicurezza della S.P. Lodovica in seguito ai fenomeni di crollo nella cava di Sesto di Moriano (Lucca). Giornale di Geologia Applicata 3:249–256, in ItalianGoogle Scholar
- Matheson GD (1983) Rock stability assessment in preliminary site investigations – graphical methods. Transport and Road Research Laboratory Report 1039Google Scholar
- Patton FD (1966) Multiple modes of shear failure in rock. In: Proceedings of the 1st congress of the international society of rock mechanics, vol 1, Lisbon, pp 509–513Google Scholar
- Rahman Z, Slob S, Hack R (2006) Deriving roughness characteristics of rock mass discontinuities from terrestrial laser scan data. In: Proceedings of the 10th IAEG congress, “Engineering geology for tomorrow’s cities”, 6–10 Sept 2006, Nottingham, UK, Geological Society of London, paper 437, 12pGoogle Scholar