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Geobrugg GBE-1000A Product Manual

Rockfall barrier
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European Technical
Assessment
ETA 09/0262
ETAG 027: Category A
Energy class 3:
1000 kJ
≥
Height: 4 – 5 m
Attending testing institute:
Swiss Federal Institute for
Forest, Snow and Landscape
Research WSL
Birmensdorf, Switzerland
Date: 08.10.2018
Edition: 16
© Geobrugg AG
CH-8590 Romanshorn
Product Manual
GBE-1000A
ROCKFALL BARRIER

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Summary of Contents for Geobrugg GBE-1000A

  • Page 1 Energy class 3: 1000 kJ ≥ Height: 4 – 5 m Attending testing institute: Swiss Federal Institute for Forest, Snow and Landscape Research WSL Birmensdorf, Switzerland Product Manual GBE-1000A ROCKFALL BARRIER Date: 08.10.2018 Edition: 16 © Geobrugg AG CH-8590 Romanshorn...
  • Page 2 Page 2/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...
  • Page 3 Page 3/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...
  • Page 4 It is designed for general standard applications and does not take into account any project-specific parameters. Geobrugg cannot be held liable for any additional costs which may arise in spe- cial cases. If anything is unclear, please contact the manufacturer. Geobrugg AG's general terms and conditions apply.
  • Page 5 • Anchorage conditions II QUALITY OF THE SYSTEM COMPONENTS Geobrugg AG, formerly the Geobrugg Schutzsysteme (Geobrugg Protection Systems) department of Fatzer AG, Romanshorn, has been certified according to the quality management system requirements (ISO 9001:2008) un- der the registration number CH-34372 since August 22nd, 1995. The certification center is the SQS (Swiss Asso- ciation for Quality and Management Systems), which is a member of IQNet.
  • 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

    IN CASE OF CRANE OR HELICOPTER INSTALLATION ........... 25 INSTALLING THE SUPERSTRUCTURE ................26 ASSEMBLY DETAILS ....................... 28 ADDITIONAL SOLUTION TO THE STANDARD ..............37 FINAL INSPECTION ......................38 Page 7/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...

  • Page 8: Hazard Statement

    EXPLANATION OF USED SYMBOLS Safety indication: essential to follow Note / Reminder that the system is correctly installed easily A consultation with Geobrugg is recommended Upslope Downslope HAZARD STATEMENT QUALIFICATION OF THE GROUP LEADER The management of installation may only be done by a qualified group leader.

  • Page 9: Installation Tools

    • Rope clamp, small 8 – 16 mm/large 14 – 26 mm (min. 2x) • 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 9/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...

  • 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 11/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...

  • Page 12: Staking Out Depending On The Terrain

    GENERAL PRINCIPLES FOR STAKING OUT Position of barrier To determine the optimal position of the barrier Geobrugg suggest carrying out rockfall modelling using simulation software, as this will provide some indicative information on bounce heights and where shadowing may occur.
  • Page 13 > 1.00 m > 1.50 m Net must be adjusted 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 13/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland...

  • Page 14: Staking-Out Geometry

    If Geobrugg is informed of any problems with the stake out, a customized solution may be possible. Page 14/41 ©...
  • Page 15 Anchor point D: retaining rope anchor T: Downslope anchor 0°- 29° rope In a ground slope of less than 30°, the distance between post and retaing rope anchor is modified. Page 15/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...
  • Page 16 Anchor point intermediate suspension If the barrier line changes upslope more than 15° an intermediate anchor rope is required. In this case the downslope anchor rope is no longer necessary. Page 16/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...
  • Page 17 For a downslope change in direction of more than 30° an additional retaining rope (D) is mounted on the post head (three ropes instead of two). The maximum angle for a downslope change in direction is 40°. Page 17/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...

  • Page 18: Rope Anchor - Placement

    (additional mesh between the terrain and bottom part of the mesh). The anchor holes are drilled in the pulling direction, with a minimum angle of > 15° to the horizontal. Page 18/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...

  • Page 19: Anchoring The Base Plate

    Prepare the concrete foundation 111; the concrete foundation is di- mensioned and reinforced in accordance with the information from 0.15 m the project engineer (Geobrugg recommendation: 0.6 x 0.4 x 0.15 m) • Insert the anchor 05, spacers 09, and fastening nuts 10; the project 0.6 m...
  • Page 20 Prepare the concrete foundation 111; the concrete foundation 111 is dimensioned and reinforced in accordance with the information from 0.15 m the project engineer (Geobrugg recommendation: 0.6 x 0.4 x 0.15 m) • Insert the anchor 05, spacers 09, and fastening nuts 10; the project engineer calculates the lengths of the anchors 0.6 m...
  • Page 21 The forces that may occur in the event of a rockfall event must not be underestimated. Civil engineering and installa- tion work must therefore be carried out by experts. Page 21/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...

  • Page 22: Preparing The Posts And Nets

    11 meshes on the top and 11 meshes on the bottom of the net panel are marked, that means the meshes are free. The support rope is not guided through the meshes. Page 22/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...
  • Page 23 11 meshes on the top and 11 meshes on the bottom of the net panel are marked, that means the meshes are free. The support rope is not guided through the meshes. See page 33. Page 23/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...
  • Page 24 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 optimal side of the post. Page 24/41 ©...

  • Page 25: In Case Of Crane Or Helicopter Installation

    Fasten the mesh bundle using bands 204 and the mounting bracket 202 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 25/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...

  • Page 26: Installing The Superstructure

    Install the U-Brakes on the anchors, fasten the bottom support rope to the base plates, and then tension the lower support rope after closing the nets. Pay attention to keep the meshes free. Page 26/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...
  • Page 27 Install the vertical ropes close to the two outermost posts. The support ropes go through the meshes, except next to the post. Page 27/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...

  • Page 28: Assembly Details

    ROPE CONNECTION TO THE ANCHORS RETAINING ROPES ON THE UPSLOPE ANCHORS 01 1 pcs Spiral rope anchor 66 1 pcs Retaining rope 96 3 pcs Wire rope clip 3/4" for each rope Page 28/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...
  • Page 29 72 1 pcs Bottom support rope 83 1 pcs Shackle 5/8" shackle 1”, straight 87 1 pcs Wire rope clip 3/4” (lubricated 90 Nm) 97 2 pcs 56,57,58 33,87 Page 29/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...
  • Page 30 In case of a support rope separation, the overturn securing rope 68 is installed temporary. It is a schematic illustration of the net bundle, make sure that the right number of meshes rest free. Page 30/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...
  • Page 31 45 1 pcs U-Brake U-300-Type 60-8 shackle 3/4“ 84 2 pcs wire rope clip 9/16” per rope 94 3 pcs 96 4 pcs wire rope clip 3/4" per rope Page 31/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...
  • Page 32 TOP SUPPORT ROPE ON THE ROPE ANCHOR Page 32/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...
  • Page 33 TECCO G80/4 ON THE SUPPORT ROPES (MIDDLE POST) 11 loops free 11 loops free Page 33/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...
  • Page 34 34 Mount 4 round clips on both the left and right of the post, starting with the post. Keep 11 loops free 80 3/8" shackle per loop 82 1/2" shackle per loop on vertical rope Page 34/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...
  • Page 35 86 4 pcs shackle 1“ A support rope separation always contains intermediate anchor ropes. In case of a support rope separation, the overturn securing rope 68 is installed temporary. Page 35/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...
  • Page 36 01 1 pcs Spiral rope anchor 79 1 pcs Downslope anchor ropes Shackle 5/8“ 83 1 pcs Wire rope clip 9/16” 94 3 pcs 95 3 pcs Wire rope clip 5/8” Page 36/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...

  • Page 37: Additional Solution To The Standard

    ROCK FACE CONNENCTION If it is not possible to use the standard staking-out procedure, an option for solid rock can be developed in consultation with Geobrugg AG. This also involves installing towing nets at the edges of the structure. GAP FILLING SOLUTION On steep mountain slopes with mountain torrents, there may be larger gaps between the ground and the lower support rope.

  • Page 38: 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 38/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...
  • Page 39 Page 39/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...
  • Page 40 Page 40/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...
  • Page 41 Page 41/41 © Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-1000A / 16...

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