An empirical approach to rockfall fragmentation

Roger Ruiz-Carulla, Jordi Corominas, Olga Mavrouli

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

2 Citations (Scopus)

Abstract

The impact-induced rock mass fragmentation in a rockfall is analyzed by comparing the In Situ Block Size Distribution (IBSD) at the cliff face and the Rockfall Block Size Distribution (RBSD) on the slope. The IBSD is extracted from a Discrete Fracture Network generated using a Digital Surface Model of the cliff obtained with digital photogrammetry. The RBSD is obtained directly by measuring the blocks deposited on the slope. The IBSD and RBSD are well fitted by exponential and potential functions, respectively. We present a procedure to derive the RBSD from the IBSD using a fractal fragmentation model based on Perfect (1997) and considering a survival rate of the blocks impacting on the ground surface.

Original languageEnglish
Title of host publicationISRM Regional Symposium, EUROCK 2015
PublisherInternational Society for Rock Mechanics
Pages151-156
Number of pages6
ISBN (Print)9783950389814
Publication statusPublished - 1 Jan 2015
EventISRM Regional Symposium EUROCK 2015 & 64th Geomechanics Colloquium - Salzburg Congress, Salzburg, Austria
Duration: 7 Oct 201510 Oct 2015

Publication series

NameISRM Regional Symposium, EUROCK 2015

Conference

ConferenceISRM Regional Symposium EUROCK 2015 & 64th Geomechanics Colloquium
Abbreviated titleEUROCK
CountryAustria
CitySalzburg
Period7/10/1510/10/15

Fingerprint

rockfall
fragmentation
cliffs
cliff
slopes
digital photogrammetry
photogrammetry
Photogrammetry
fracture network
exponential functions
Fractals
fractals
Rocks
rocks
in situ

Cite this

Ruiz-Carulla, R., Corominas, J., & Mavrouli, O. (2015). An empirical approach to rockfall fragmentation. In ISRM Regional Symposium, EUROCK 2015 (pp. 151-156). (ISRM Regional Symposium, EUROCK 2015). International Society for Rock Mechanics.
Ruiz-Carulla, Roger ; Corominas, Jordi ; Mavrouli, Olga. / An empirical approach to rockfall fragmentation. ISRM Regional Symposium, EUROCK 2015. International Society for Rock Mechanics, 2015. pp. 151-156 (ISRM Regional Symposium, EUROCK 2015).
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Ruiz-Carulla, R, Corominas, J & Mavrouli, O 2015, An empirical approach to rockfall fragmentation. in ISRM Regional Symposium, EUROCK 2015. ISRM Regional Symposium, EUROCK 2015, International Society for Rock Mechanics, pp. 151-156, ISRM Regional Symposium EUROCK 2015 & 64th Geomechanics Colloquium, Salzburg, Austria, 7/10/15.

An empirical approach to rockfall fragmentation. / Ruiz-Carulla, Roger; Corominas, Jordi; Mavrouli, Olga.

ISRM Regional Symposium, EUROCK 2015. International Society for Rock Mechanics, 2015. p. 151-156 (ISRM Regional Symposium, EUROCK 2015).

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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N2 - The impact-induced rock mass fragmentation in a rockfall is analyzed by comparing the In Situ Block Size Distribution (IBSD) at the cliff face and the Rockfall Block Size Distribution (RBSD) on the slope. The IBSD is extracted from a Discrete Fracture Network generated using a Digital Surface Model of the cliff obtained with digital photogrammetry. The RBSD is obtained directly by measuring the blocks deposited on the slope. The IBSD and RBSD are well fitted by exponential and potential functions, respectively. We present a procedure to derive the RBSD from the IBSD using a fractal fragmentation model based on Perfect (1997) and considering a survival rate of the blocks impacting on the ground surface.

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Ruiz-Carulla R, Corominas J, Mavrouli O. An empirical approach to rockfall fragmentation. In ISRM Regional Symposium, EUROCK 2015. International Society for Rock Mechanics. 2015. p. 151-156. (ISRM Regional Symposium, EUROCK 2015).