Paper Title:
Use of External Testing Methods to Assess Damage on Rockfall Protection Structures
  Abstract

This paper deals with the evaluation of damage due to boulder impact on rockfall protection embankment thanks to external methods. A 4 m high, 8 m long three layered structure is built using cells filled with different material according to their location in the structure. The structure is impacted by a 6500 kg spherical boulder with a maximal impact energy of 2000 kJ. The behaviour of the structure is first investigated using topographic surveys. Then, the results are compared with geophysical measurements. Results show that a low-energy impact leads to (i) the densification of both front and inner-layers associated with the swelling of the materials of the rear layer in the impact plane, and (ii) to the readjustment of internal materials which induces a local densification in a plane offset of 2 m. A high-energy impact induces large deformations on both inner and rear layers. These results are confirmed by seismic velocities which decrease with successive impacts.

  Info
Periodical
Chapter
Chapter 4: Structural Management, Protection and Other Related Topics
Edited by
Ezio Cadoni and Marco di Prisco
Pages
704-709
DOI
10.4028/www.scientific.net/AMM.82.704
Citation
A. Heymann, M. Collombet, S. Lambert, P. Gotteland, "Use of External Testing Methods to Assess Damage on Rockfall Protection Structures", Applied Mechanics and Materials, Vol. 82, pp. 704-709, 2011
Online since
July 2011
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Price
$32.00
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