RXE rockfall protection barriers

1000–8000 k J
RXE rockfall protection barriers:
The robust barrier from high-tensile
steel wire with moderate deflection.
• high-tensile steel wire
•
•
•
•
•
(tensile strength of at least
1770 N/mm2)
tested in accordance with
the toughest European and
Swiss guidelines
ETAG 027 Category A
moderate deflection after
maximum-impact events
tried-and-tested protection
against corrosion
quick to install thanks to
modular design
European Technical Approval
w w w. e o t a . e u
Maximum
protection
with moderate
Der stärkste
Schutz weltweit:
defl
The RXE series.
Die ection:
Steinschlag-Barriere
RXE-8000A
Climate change means more
rockfall events
As a consequence of climate change, the risk of landslides and falling rocks and blocks is on the rise. The
increased potential hazard often exceeds the absorption capacity of existing protective barriers. This is
resulting in a growing demand for barriers that can
cope with higher impact energies.
Moderate deflection
As well as its high energy absorption capacity, the RXE
rockfall protection barrier is also setting new standards in terms of deflection, allowing it to be installed
in the immediate vicinity of the object or building at
risk. It has been certified to absorb impacts of up to
8000 kJ, which equates to a rock weighing 20 metric
tonnes travelling at over 100 km/h.
2
Rockfall on concrete galleries
The RXE-1000 to RXE-8000 barriers have been
designed to meet the toughest of challenges: they
can be utilized wherever boulders are likely to break
off or fall from a great height or over a great distance.
Areas of application for rockfall protection measures
Shown according to impact energy in kJ
Fences
The high energy absorption capacity of an RXE barrier
can be used to enhance existing concrete galleries.
They are also an attractive option if topographic or
esthetic considerations make it unfeasible to build a
concrete gallery or a protective dam.
Flexible barriers
without retaining ropes
Flexible barriers
with retaining ropes
Galleries
Dams
10
Barrier or earth dam?
While some 100 metric tonnes of material are
required for one linear meter of earth dam, the
RXE-8000 requires only about one metric tonne of
material per linear meter. Using a rockfall protection
barrier cuts the material, effort and installation costs
required significantly.
20
50
100
200
500
1000
2‘000
3‘000
5‘000
8‘000
Enhancement using an
earth dam
RXE-8000 rockfall protection
barrier with retaining rope
- disruptive
- expensive
- heavy
- transparent
- cost-effective
- lightweight
10‘000
3
Tried-and-tested components.
Deflection
During a maximum-impact event, a 1,000 kJ system
(RXE-1000) will deflect by only 4.36 m. It is supported, among other things, by two to four catch ropes,
pulled diagonally through the ROCCO® ring net.
Approval
Tested under the toughest vertical drop conditions in
accordance with European Guideline ETAG 027 and
Swiss guidelines on the type testing of protective nets.
www.geobrugg.com/
youtube/RXE-en
SCAN IT!
4
Installation
• The low deflection of the RXE barrier during
a maximum-impact event means that it can be
installed closer to the object or building to
be protected or on traffic routes. It is therefore
simple to install, e.g. using a crane.
• Individual components are ideally matched to one
another, minimizing the amount of material used.
• Pre-assembled components, e.g. nets supplied
pre-installed on the posts, speed up the installation process.
• Comprehensible installation instructions in the
RXE system manual make installation work easier
for the construction crew.
High-tensile ROCCO® ring net
The ROCCO® ring net is made from high-tensile
steel wire 3 mm thick and with a strength of at least
1770 N/mm2. It can be perfectly adapted to the terrain and is excellent for absorbing concentrated
loads. To absorb impacts ranging from 1000 to
8000 kJ, between 7 and 19 strands of wire are bundled
into a ring measuring 30 or 35 cm in diameter. A fine
secondary mesh also stops smaller rocks and stones.
Baseplates and posts
RXE rockfall protection barriers use tried-and-tested
components: the HEA posts are an ideal complement to the baseplates, which can be installed quickly
and easily using conventional anchors.
Brakes
In each section measuring approx. 80 –100 m, four
U-brakes are installed on the lateral ends of the
support ropes. Using U-brakes reduces the strain on
the support ropes.
Rope anchorages
Rope anchorages can be installed using our tried-andtested spiral rope anchors or conventional self-drilling
anchors and the Geobrugg FLEX head. These types of
anchorage are suitable because they allow the anchor
head to deflect by up to 30° while still being able to
absorb the full tensile load.
5
Installing RXE barriers:
Surprisingly easy and quick.
Less work.
The time required to install rockfall protection barriers is a key factor in calculating the project costs. This
is why we designed the RXE with ease of installation
in mind.
• The ring nets are pre-assembled, depending on
post height, and are supplied in folded packs
together with an installation manual (picture 1).
• Depending on the barrier type, installing the
6
1
ultra-lightweight baseplates requires only one,
two or three anchors.
• The HEA profile post is bolted to the baseplate
(picture 2).
• The lightweight HEA profile posts with preassembled mesh/net are extremely easy to install
together with the retaining ropes, either manually
or using a crane or helicopter (picture 3).
• The U-brakes are only attached at the sides and
near to the ground (picture 4).
2
• The support rope is pulled through the folded
mesh/net and then tensioned (picture 5).
• The mesh/net can be pulled easily over the
support rope like a curtain (picture 6).
• The mesh and net sections can be connected
quickly using shackles (picture 7).
3
5
3
4
6
7
7
RXE-1000 to RXE-8000 rockfall
protection barriers.
Type
RXE-1000
RXE-2000
RXE-3000
RXE-5000
RXE-8000
Energy class*
3 (1000 kJ)
5 (2000 kJ)
6 (3000 kJ)
8 (5000 kJ)
8 (8000 kJ)
ETA certificate no.**
ETA-13/0225
pending
pending
ETA-11/0305
ETA-12/0213
BAFU certificate no.***
13-07
13-09
pending
pending
pending
CE number
1301-CPD-0882
pending
pending
1301-CPD-0714
1301-CPD-0803
ROCCO® ring net type
R7/3/300
12/3/350
16/3/350
R16/3/350
R19/3/300
Wire diameter
3 mm
3 mm
3 mm
3 mm
3 mm
Ring diameter
300 mm
350 or 300 mm
350 or 300 mm
350 or 300 mm
300 mm
Post type
HEA 160
HEA 200
HEA 220
HEA 220
RRW 400
Rope diameter
16 –22 mm
16–22 mm
16–22 mm
20–22 mm
22 mm
No. of brake elements in support rope per approx 80–100 m
4 x U-300-K1620
4 x U-300-R20
4 x U-300-R20
12 x U-300-R20
48 x various
Distance between posts
8 –12 m
8 –12 m
8 –12 m
8 –12 m
8 –12 m
Min./max. barrier height
3m/6m
4 m / 7.5 m
4 m / 7.5 m
5m/9m
6 m / 10.5 m
with ETAG 027 certification
4 –5 m
5–6 m
5–6 m
6 –7 m
7– 8 m
with BAFU certification
4 –6 m
5– 7.5 m
5–7.5 m
6–9 m
7–10.5 m
Max. deflection distance
4.36 m
5.80 m
<7m
8.15 m
8.45 m
Usable height remaining in impact section*
>50 % (Cat. A)
>50 % (Cat. A)
>50 % (Cat. A)
>50 % (Cat. A)
>50 % (Cat. A)
**see www.eota.eu>valid ETAs>criteria: ETA number
Geobrugg, a reliable partner
Our engineers and partners analyze the situation
together with you and then, working together with
local engineering firms, present their solutions.
Painstaking planning is not the only thing you can
expect from us, however; since we have our own
production plants on four continents, we can offer not
only short delivery times but also the best possible
customer service right on your doorstep. To ensure
your project runs smoothly, we deliver pre-assembled
***in accordance with Swiss directive
and clearly labeled system components right to the
construction site. Here, we can also provide technical
support if required – from installation right through
to final acceptance of the structure.
Product liability
Rockfalls, landslips, debris flows, shallow landslides
and avalanches are natural events and therefore
cannot be calculated. For this reason, it is impossible
to determine or guarantee absolute safety for persons
The right to make technical modifications is reserved.
and property using scientific methods. This means
that, to provide the desired level of protection,
protective systems must be monitored and serviced
regularly and appropriately. In addition, events that
exceed the system’s calculated absorption capacity
may cause damage. The use of non-original parts as
well as severe corrosion, such as might be caused by
environmental pollution, can reduce the level of
protection provided.
Geobrugg AG
Geohazard Solutions
Aachstrasse 11 • CH-8590 Romanshorn • Switzerland
Phone +41 71 466 81 55 • Fax +41 71 466 81 50
www.geobrugg.com • [email protected]
A company of the BRUGG Group
ISO 9001 certified
1.101.15.EN.1311/200
*in accordance with ETAG 027