CAN C : a range of innovative
and high-performance barriers.
CAN C1® and CAN C2®
barriers (classes 4 to 9) : support posts and guy lines downstream
from the meshes, dissipation of energy by reversible deformation
of the structure and mesh. CAN C1® barrier
fitted with a post reinforced by a stay to improve the angle of
incidience of the guy lines and allow the dissipation of high energies.
CAN type C1® rockfall
barrier. |
CAN type C2® rockfall
barrier. |
Classes de 4 to 9 - 500
to 5000 KJ
CAN C® rockfall
barriers have been subjected to txo types of testing :
| dynamic tests on full scale barriers
using controlled impacts from real boulders carried on a cable
rail system. These tests have proven the ability of the CAN
barriers to stop successive rockslides while retaining an efficient
geometry. |
static
deformation tests on
the antisubmarine meshes. |
|
|
|
operating principle. With the barriers
Advantages
CAN C® rockfall
barriers do not have weaknesses upstream contrary to the
traditional* systems containing upstream guy lines and posts in
the plane of the mesh. Furthermore, CAN
C® rockfall barriers, which do not use an
irreversible braking system, allow successive rockslides to
be intercepted while retaining an effective geometry. This
significantly reduces the maintenance of CAN C®
rockfall barriers. When the barrier is stressed beyond nominal capacity,
a fuse system protects the anchoring so that no component is damaged.
*In a traditional system, a
2m3 spherical rock (1,56 m sphere) has one
chance in three of hitting either a post or an upstream guy line
when the posts are placed 10m apart. In both cases, the impact
ultimately damages the structure.
| Traditional rockfall barriers with
brakes on the mesh |
CAN C® rockfall
barriers with protected structure. |
|
|
- CAN C®, patent no. 87 15070,
registred trademark,
- ELSA® patent no. 93 13429, registred trademark,
- ROCCO® GEOBRUGG registred trademark.
|
