Geobrugg GBE-500A-R Product Manual

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European Technical

Assessment ETA 16/0329

ETAG 027: Category A

Energy class 2:

500 kJ

≥

Height: 3 – 3.5 m

Associated test institute:

Swiss Federal Institute for

Forest, Snow and Landscape

Research WSL

Birmensdorf, Switzerland

Date: 08.10.2018

Edition: 15

CH-8590 Romanshorn

Product Manual

GBE-500A-R

ROCKFALL BARRIER

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Page 1 Energy class 2: 500 kJ ≥ Height: 3 – 3.5 m Associated test institute: Swiss Federal Institute for Forest, Snow and Landscape Research WSL Birmensdorf, Switzerland Product Manual GBE-500A-R ROCKFALL BARRIER Date: 08.10.2018 Edition: 15 © Geobrugg AG CH-8590 Romanshorn...
Page 4 No claims are made that this document is complete. The manual describes standard applications and does not take into account project-specific parameters. Geobrugg cannot be held liable for any extra costs that may be in- curred for special cases. In case of uncertainties, please contact the manufacturer. The General Sales Conditions of Geobrugg AG are applicable.
Page 5 10 m and an impact speed of at least 25 m/s is reached. The tests are accepted by a notified body and receive an approval, known as an ETA (European Technical Approval). The approval no. of the GBE-500A-R system is ETA –...
Page 6 Geobrugg can assist with estimating the influence of larger deviations and special situations, and can offer rec- ommendations for feasible solutions. Geobrugg cannot, however, guarantee the same behaviour as in the one-to- one rockfall tests.
Page 7: Table Of Contents
PREPARING THE POSTS AND NETS ................20 CRANE OR HELICOPTER INSTALLATION ............... 23 INSTALLING THE SUPERSTRUCTURE ................24 ASSEMBLY DETAILS ....................... 26 ADDITIONAL SOLUTION TO THE STANDARD ..............35 FINAL INSPECTION ......................36 Page 7/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 8: Hazard Warnings
REMOVAL OF PARTS UNDER TENSION The removal or separation of components under tension is to be avoided whenever possible. Should such work be necessary, however, the utmost caution must be taken. Page 8/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 9: Tools For Installing Rockfall Barriers
• At least 2 tension belts • Cable winch hoist, e.g. LUG-ALL ® • Chain hoist or HABEGGER wire rope hoist, min. 1.5 t (15 kN) • Auxiliary ropes Page 9/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 10: Using The Wire Rope Clips
, where t is the width of the clamping jaws. The loose rope end has to be 3 x e at a minimum. Geobrugg recommends looping up the remaining free section and fixing it directly behind the last wire rope clip on the tightened rope.
Page 11 Undamaged wire rope clips could be reused. Especially the threads and clamping jaw have to be checked. Wire rope clips always have to be installed and used with the required tensioning torque. Page 11/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 12: Staking Out Subject To Terrain
The foundations must be placed in such a way that the lower support rope is routed past the edges of the founda- tions without being damaged by them. Page 12/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 13 The standard net length is acceptable up to a height difference in the barrier line of 2 m and if the distance be- tween the posts is between 6 m and 12 m. If the height difference is greater than in Tab.2, you must contact Geobrugg to enable the correct length of nets to be determined.
Page 14: Staking-Out Geometry
Informing Geobrugg about the deviations enables you to work together to quickly find a solution that is adapted to your requirements.
Page 15 0.65 1.00 3.00 4.50 1.00 1.50 3.50 5.30 1.15 1.75 4.00 6.00 1.30 2.00 ANCHOR POINT FOR INTERMEDIATE ANCHOR ROPE Length see Tab.3 see Tab.3 Anchor point intermediate suspension Page 15/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 16 In the case of a change in direction towards the mountain of more than 15°, an intermediate anchor rope must be installed and the valley-side anchoring is omitted. Page 16/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 17 In the case of a change in direction towards the valley of more than 30°, two additional retaining ropes (D) are mounted on the post. The change in direction towards the valley must not exceed 40°. Page 17/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 18: Anchoring The Baseplate
10 must be attached on both sides of the base plate • Fill in the concrete foundation 111 • Tighten the fastening nuts 10 to a preload force of approx. 30 kN 09, 10 Page 18/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 19 “gap filling nets” (additional mesh between the terrain and bottom part of the mesh). The anchor holes are bored in the direction of movement at a minimum gradient of > 15° from the hori- zontal. Page 19/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 20: Preparing The Posts And Nets
1 pcs running wheel 2 pcs U-profiles as support rope guide 1 pcs TECCO mesh bundle 1 pcs lateral rope 1 pcs post head rope 2 pcs 5/8" shackles Page 20/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 21 The mounting bracket 102 is placed at the correct height between the rungs 103 and the post wall. The net bundle is placed on the mounting bracket and securely fastened with 104 bands. Page 21/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 22 X: If there are large differences in height, it is easier to pull the mesh down from the higher post to the lower post. On request, Geobrugg will also supply the bundles on the desired side of the post. Page 22/39 ©...
Page 23: Crane Or Helicopter Installation
Fasten the mesh bundle using bands 204 and the mounting bracket so that it cannot fly away. Use the centre 5/8" shackle on the top of the post 205 to lift the posts. Never use the rungs 203! Page 23/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 24: Installing The Superstructure
• Install the U-Brakes on the anchors, fasten the bottom support rope to the baseplates, and then tension the lower support rope. Page 24/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 25 • Install the vertical ropes close to the two outermost posts. • Raise the nets on the upper and lower support rope. Page 25/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 26: Assembly Details
1" shackles, straight 2 pcs 3/4" wire rope clips The mesh is shown in the diagram; make sure you pay attention to the number of loops that are kept free. 33,87 Page 26/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 27 9/16” wire rope clips, M 4 pcs = 35 Nm It is a schematic illustration of the net bundle, make sure that the right number of meshes rest free. 33,87 Page 27/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 28 1 pcs Spiral rope anchor 1 pcs U-Brake U-300-Type 60-8 Shackle 3/4“ 2 pcs wire rope clip 7/16” per rope 3 pcs 4 pcs wire rope clip 3/4" per rope Page 28/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 30 (top and bottom). Fix each second loop with a round clip to the support rope. 3/8" shackle per loop 1/2" shackle per loop on vertical rope Page 30/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 31 TECCO G80/4 ON THE SUPPORT ROPES (MIDDLE POST) 11 loops free 11 loops free Page 31/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 32 2 pcs shackle 1/2“ shackle 5/8“ 3 pcs shackle 3/4“ 2 pcs wire rope clip 1” 4 pcs 33,87 A support rope separation always contains an intermediate anchor rope. Page 32/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 33 INTERMEDIATE ROPE SUSPENSION 33,87 1 pcs spiral rope anchor 1 pcs Downslope anchor rope 3 pcs 5/8" shackles 6 pcs wire rope clips 7/16” Page 33/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 35: Additional Solution To The Standard
If there is insufficient space for staking out the lateral anchors as standard, you can consult with Geobrugg AG to develop a strut solution. ROCK CONNECTION If standard stake-out is not possible, you can consult with Geobrugg AG to develop a rock connection var- iant. GULLY SOLUTION Larger openings between the ground and the lower support rope may form on steep mountain slopes with moun- tain torrents.
Page 36: Final Inspection
Are the nets connected correctly? Are the end nets correctly fastened to the vertical ropes? Is the sag of the top support rope less than 3% of the distance between the posts? Page 36/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...
Page 37: Geobrugg Ag, Ch-8590 Romanshorn, Switzerland Gbe-500A-R
Page 37/39 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A-R / 15...

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