Evaluation of Behaviour of Rockfall Restraining Nets by Full Scale Tests |
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| Authors: | D Peila S Pelizza F Sassudelli |
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| Institution: | (1) Dipartimento di Georisorse e Territorio, Politecnico di Torino, Italy , IT;(2) CNR, Centro di Studio per la Fisica delle Rocce e le Geotecnologie, Torino, Italy , IT;(3) Intekna S.r.l., Asti, Italy, IT |
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| Abstract: | Summary
Rock restraining net is a device engineered to stop large rockfalls. The system consists of a net vertically supported by
steel posts with “energy dissipators” able to dissipate high kinetic energy by large displacements. These fences have been
usually placed to protect against rockfalls in mountainous areas but few tests have been developed correctly to define the
behaviour of these structures. In this paper full scale tests on passive defence against rock falls are presented. The tests
have been carried out in a field test site especially designed and built. The test site has been provided of camera apparatus
able to monitor the impact of the block against the fence. The impact energy and the consequent forces and displacements of
the fence are studied. The tests have been carried out on many different fence types and have allowed the definition of a
well-established design procedure. |
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