In mountainous countries protecting galleries are important structures reducing risks caused
by rockfall. In Switzerland, about 350 galleries are endangered. The aim of the described …

Impact tests on six reinforced concrete slabs with different cushion layers were performed by
dropping concrete boulders from different falling heights. A conventional cushion layer and …

A weight of 825 kg is dropped from 2 m on the reinforced concrete slab. This impact is then
reproduced by a servo-controlled actuator in a second test and by the backstroke of blasted …

Rockfalls are one of the most prevailing natural hazards in the mountainous regions in
Switzerland. Concrete protection galleries are used to protect the local infrastructure and …

This research aims at providing a better understanding of the dynamic behavior of rock fall
protection galleries. To improve the prediction accuracy for the impact load capacity …

Galleries are common structures to protect roads and railways from rockfall hazards. The
design concepts in recent guidelines are based on the application of a static equivalent …

In this paper the results of a series of rockfall impact tests on a sheltering tunnel are
discussed. A reinforced-concrete (RC) sphere (mass 850 kg, diameter 0· 9 m) was dropped …

A system of multiple degrees of freedom composed out of three masses and three springs
has been presented in 2008 for analyzing rockfall impacts on protective structures covered …

Rock sheds are usually covered by a soil layer used as a shock absorbing cushion. To
acquire a reasonable estimation of the impulsive design load and thus to obtain design …

Galleries are common measures to protect roads and railways from rockfall. Rockfall is one
of the most relevant natural hazards in the mountainous regions of Switzerland. The recent …