rockfall BLOG: Frane

Rockfall in Swiss-Engadina

Thomas

20/04/12 nella Frane | Permalink | Commenti (0) | TrackBack (0)

North Cliffs Rockfall in Cornwall

Tank you to Peter Ingraham from Golder for this incredible video and related article on theguardian.

Thomas

11/10/11 nella Frane | Permalink | Commenti (1) | TrackBack (0)

Rolling Stones in New Zeland and Height Design of Protective Measures

For many people it is difficult to understand the motion concept of rocks along the slopes, in this interesting video shot in New Zealand (Christchurch) from GNScience Chris Massey analyses rockfall hazards to assist Christchurch recovery planning and discusses many issues related to unpredictable prevents this phenomenon.

At 4.17 minute of the video is very interesting to observe the deviation of the block (aprx. 40 °) respect the line of maximum slope angle ........ only for a little impact point with a rock outcrop present on the slope.!!!!!

This is very difficult to take into account with the rockfall analisys two dimensional and probably for this type of activities the better solutions is the 3D software.

In any case for my experiences the rebounding height is much more unpredictable than the rock energy. For this reason, my assumption design of heght protection measures is based on model described belowe.