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Related Manuals for Geobrugg VX Series
Summary of Contents for Geobrugg VX Series
- Page 1 Attending testing institute: Swiss Federal Institute for Forest, Snow and Landscape Research WSL Birmensdorf, Switzerland Product Manual VX/UX Debris Flow Barriers Date: 07/11/2016 Edition: 164-N-FO / 05 © Geobrugg AG 8590 Romanshorn, Switzerland...
- Page 2 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 incurred for special cases. In case of uncertainties, please contact the manufacturer. The General Sales Conditions of Geobrugg AG are applicable.
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Page 3: I Range Of Application
II Quality of the system components Geobrugg AG is certified under the registration no. 34372 in accordance with the Quality Management Systems Requirements (ISO 9001: 2015). The certifying body is the Swiss Association for Quality and Management Systems (SQS), which belongs to IQNet. The quality manual completely specifies how to test the system components (raw material, commercial and end products) comprehensively in order to exclude deficiencies in quality. -
Page 4: Product Liability
Critical points are, for example, post spacing, changes in direction, placement angle of the rope anchor, and the direction and velocity of impact. Geobrugg can assist with estimating the influence of larger deviations and special situations, and can offer recommendations for feasible solutions. Geobrugg cannot, however, guarantee the same behaviour as in the one-to-one rockfall tests. -
Page 5: Table Of Contents
Criteria for servicing .......................... 28 Tools for debris flow barrier maintenance ..................31 Emptying and clearing out the barriers ..................... 31 Standard system drawings ......................33 Input values for barrier dimensioning................... 34 Maintenance form for field inspection ..................36 © Geobrugg AG, Switzerland... -
Page 6: Introduction
This installation manual is valuable for Geobruggs VX/UX Systems up to a debris pressure of 180 kN/m/h . If the expected debris pressure is more than 180 kN/m/h , contact Geobrugg AG for a possi- ble solution. 1.2 Construction The debris flow barrier system consists of the following components: ®... - Page 7 Brake rings The task of the built-in Geobrugg brake elements (brake rings) is to dissipate energy via plastic deformation and friction, and to protect the support ropes from overload. The steel tubes also protect the rope from corrosion and mechanical damage.
- Page 8 EN 13411-5 (DIN 1142). It is very important to use the right number of wire rope clips with the required torque values. The wire rope clips can be bonded with adhesive (e.g., with Loctite) if they are required to be theft-proof. © Geobrugg AG, Switzerland...
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Page 9: System Drawing Of The Rope Guiding For Ux/Vx Systems
System drawing VX Winglet rope Abrasion protection Border rope Middle support rope Upper support rope Bottom support ropes System drawing UX Winglet rope Abrasion protection Middle support ropes Upper support ropes Posts Lower support ropes © Geobrugg AG, Switzerland... -
Page 10: Anchor Forces
Installation of the middle support ropes. If there are several ropes hold them together with a shackle. Installation of the abrasion protection with a crane, chain hoist or helicopter. It is fixed to the upper support and the winglet ropes with the welded shackles. © Geobrugg AG, Switzerland... -
Page 11: Recommended Installation Tools
Roll of adhesive tape Draw tongs 14-26 mm At least tow tension belts/straps ® Come-along/pulley, e.g., type LUG-ALL Chain hoist or Habegger, at least 3.5 t (35kN) Auxiliary ropes Table 1: installation tools © Geobrugg AG, Switzerland... -
Page 12: Use Of Wire Rope Clips
2 x t, 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 13 Required Required Wire rope Size Required tightening tightening Wrench diameter of the amount of torque lubri- torque size [mm] wire rope clip wire rope clips cated unlubricated [mm] [Nm] [Nm] 18 - 20 3/4‘‘ 7/8“ GEOBINEX After the first load application the tightening torque has to be checked and if not fulfilled adjusted to the required value.
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Page 14: Anchorages
Anchorages 3.1 Marking of the anchorage locations The position of the debris flow barrier has to be fixed by the design engineer. Beneficial are smaller torrent sections with stable slopes to anchor the barrier. The maximum span width should not be larger than 25 m and the height of the barrier should not be more than 6 m. -
Page 15: Position Of The Anchors For The Retaining Ropes
Product Manual VX/UX Page 15 / 37 3.2 Position of the anchors for the retaining ropes barrier post retaining ropes retaining ropes α α α should be between 20 - 40° Flow direction © Geobrugg AG, Switzerland... - Page 16 Product Manual VX/UX Page 16 / 37 5° post inclination retaining rope 60°-85° post 15° © Geobrugg AG, Switzerland...
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Page 17: Anchorage Of The Post Foundation
Build in the two bars for the base plate (Use the base plate as a face mould) Concrete the foundation. Please round the foundation edges if the border rope is led along the foundation. The fastening of nuts may not be tightened until the concrete has cured completely. © Geobrugg AG, Switzerland... -
Page 18: Post Foundation
3.4 Post foundation Sectional view 1000 GEWI D= 40mm minimum reinforcement 10/100 (on site) flow direction optional with helix reinforcement (on site) Tension anchor (on site) 45° Compression anchor (on site) Plan view 1000 flow direction Tension anchors © Geobrugg AG, Switzerland... -
Page 19: Anchorage Of The Support And Retaining Ropes
The holes of the shutter around the flexible heads have to be stuffed with polyethylene foam. Concrete the foundation Reinforcement 10/100 (on site) marking of installation depth © Geobrugg AG, Switzerland... -
Page 20: Arrangement Of Flexible Heads
The best way is to incline the flexible heads 45° forward so also the border ropes are installed easily. Arrangement 45° flexible heads Acting debris flow Debris flow barrier Correct inclined flexible heads. The inclination should be ~ 45°. © Geobrugg AG, Switzerland... -
Page 21: Superstructure
Helicopter, crane or excavator. The brake rings should be on a distance of around 1m from the post head Fix the post to the base plate with the hinge tube and cotter springs. © Geobrugg AG, Switzerland... - Page 22 Guide the bottom ropes through the base plate where possible. Install and tension the border ropes. The brake rings should be in the middle between the bottom and middle or between the mid- dle and top anchors. © Geobrugg AG, Switzerland...
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Page 23: Installation Of The Ring Net
1'' shackles. Spare rings can be cut or tied up. Install the middle support ropes and con- nect each ring with them. The middle support ropes should be downslope of the net. © Geobrugg AG, Switzerland... - Page 24 Page 24 / 37 Fix the brake rings of the lower support ropes upwards on the downslope side with wire to the ring net thus debris cannot Flow direction block the brake rings with stones. © Geobrugg AG, Switzerland...
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Page 25: Installation Of The Abrasion Protection
3 pcs ¾” shackles to the secondary ring row to avoid torsion of the profiles. In case of a system with posts should the distance between the profiles and the post be as small as possible. Additional fixed shackle to avoid torsion © Geobrugg AG, Switzerland... -
Page 26: Final Inspection
Does the abrasion protection have enough large overlapping areas to assure sufficient deformation? Is the abrasion protection assured with shackles against torsion? m) Are the brake rings of the lower support ropes bend upwards to the ring net? © Geobrugg AG, Switzerland... -
Page 27: Service And Maintenance
Page 27 / 37 Service and Maintenance Debris flow protection systems from GEOBRUGG require minimal or zero maintenance unless structures have been loaded by major avalanche and snow-slip events, during the winter, or by minor to major debris floods. The debris flow protection systems’ maintenance items are to be considered supplements to the maintenance manual for RXI systems. -
Page 28: Inspection After Events
Retensioning the appropriate ropes can also be carried out without changing the braking elements by simply retensioning the support rope. © Geobrugg AG, Switzerland... - Page 29 6.4.4 Retention ropes The same criteria also apply to the retention ropes. Here however it is more effective and economic to replace the complete retention rope and not just the affected section within the brake ring. © Geobrugg AG, Switzerland...
- Page 30 Both spiral rope anchors and self-drilling anchors must be replaced when pulled out of the ground by more than 3 cm, as this can in some cases lower the supporting capacity. © Geobrugg AG, Switzerland...
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Page 31: Tools For Debris Flow Barrier Maintenance
Attention: The system may be under tension from debris material present in the net. This must be taken into account when removing compo- nents or releasing ropes! © Geobrugg AG, Switzerland... - Page 32 6.6.2 Emptying nets manually or by machine from upstream Generally, emptying the nets from upstream is more maintenance-friendly and should always be the aim during project planning. The material can be simply removed and transported away manually or with a mobile excavator. © Geobrugg AG, Switzerland...
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Page 33: Standard System Drawings
Type VX100-H6: GD-1003.1d, GD-1003.2d Type VX160-H6: GD-1004.1d, GD-1004.2d Type UX100-H4: GD-1005.1d, GD-1005.2d, GD-1005.3d Type UX160-H4: GD-1006.1d, GD-1006.2d, GD-1006.3d Type UX120-H6: GD-1007.1d, GD-1007.2d, GD-1007.3d Type UX180-H6: GD-1008.1d, GD-1008.2d, GD-1008.3d Type VX060L-H4: GD-1009.1d, GD-1009.2d © Geobrugg AG, Switzerland... -
Page 34: Input Values For Barrier Dimensioning
Product Manual VX/UX Page 34 / 37 8 Input values for barrier dimensioning Project name:…………………………………………………………………… Project No.:………………………………………………………………………. Country:……………………………………………………………………………… Place:……………………………………………………………………………….. Client:……………………………………………………………………………. Ordering party:………………………………………………………………………….. Protection object:………………………………………………………....Transverse profile of the barrier Longitudinal profile of the barrier © Geobrugg AG, Switzerland... - Page 35 Page 35 / 37 Average channel bed width at the barrier [b] Stream / slope incline behind the barrier Estimated debris volumes [V Boulders/granular sludge Debris type _________ Density of the debris materials [ρ kg/m Remarks: © Geobrugg AG, Switzerland...
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Page 36: Maintenance Form For Field Inspection
Is corrosion apparent? If so, where? ______________________________ ______________________________ ______________________________ ______________________________ Quick visual check of the anchoring points, both at the retention ropes, support ropes and the post foundations ______________________________ ______________________________ ______________________________ ______________________________ ______________________________ ______________________________ ______________________________ © Geobrugg AG, Switzerland... - Page 37 Is any damage to the anchors of the support or retention ropes apparent? Are the flexible heads still intact? _________________________ _________________________ _________________________ _________________________ _________________________ Approximately how many cubic meters have to be cleared out: ____________________m © Geobrugg AG, Switzerland...
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