GBE-500A BARRIER - Warco

European Technical

Assessment ETA 09/0085

ETAG 027: Category A

Energy class 2: ≥ 500 kJ

Height: 3 – 3.5 m

Attending testing institute:

Swiss Federal Institute for

Forest, Snow and Landscape

Research WSL

Birmensdorf, Switzerland

Date: 08.10.2018

Edition: 18

© Geobrugg AG

CH-8590 Romanshorn,

Switzerland

Product Manual

GBE-500A

ROCKFALL BARRIER

Page 2/40

© Geobrugg AG, CH-8590 Romanshorn, Switzerland GBE-500A / 18

Page 3/40


FUNCTION AND STRUCTURE OF THE MANUAL

This system manual ensures that Geobrugg rockfall protection systems are manufactured without errors in accordance with

the latest technical findings, that their area of application is clearly defined, that their functionality is guaranteed, and that their

installation is performed and checked properly.

For an overview of the system, see the appendix at the end of the manual

The product manual is divided into the following parts:

• Proof of quality assurance

• Staking out

• Assembly details

• System overview / rope guide

• ISO 9001 certificate

This document does not claim to be exhaustive. It is designed for general, standard applications and does not take any pro-

ject-specific parameters into account. Geobrugg cannot be held liable for any additional costs which may arise in special cas-

es. If anything is unclear, please contact the manufacturer. Geobrugg AG's general terms and conditions apply.

RESPONSIBILITY FOR THE CONTENT:

Geobrugg AG

Schutzsysteme

Aachstrasse 11

Postfach

CH-8590 Romanshorn, Switzerland

[email protected]

www.geobrugg.com

Romanshorn, 08.10.2018

(Stamp / legal signatures)

Page 4/40


I AREA OF APPLICATION

Rockfall protection systems are planned on the basis of detailed research carried out by specialist engineering companies,

which take the following geotechnical aspects into account and define the area of application accordingly:

• Previous rockfall events

• Condition of the rockfall outbreak zone

• Assessment of the stability of the entire rockfall zone

• Frequency of rockfalls

• Size of the rocks collected

• Trajectories and displacements of the rocks

• Kinetic energy calculations

• Positioning of the barrier (taking the local topography into account)

• Anchoring conditions

II QUALITY OF THE SYSTEM COMPONENTS

Geobrugg AG, formerly the Geobrugg Schutzsysteme (Geobrugg Protection Systems) department of Fatzer AG, Ro-

manshorn, has been certified according to the quality management system requirements (ISO 9001:2008) under the registra-

tion number CH-34372 since August 22nd, 1995. The certification center is the SQS (Swiss Association for Quality and Man-

agement Systems), which is a member of IQNet. The quality manual specifies in full the way in which the individual system

components (basic material, commercial products, and end products) are checked extensively to eliminate poor quality. You

can find the corresponding certificates in the appendix.

III FUNCTIONALITY OF THE BARRIER SYSTEMS

The system functionality is based on rockfall tests that replicate real-life conditions, performed in Walenstadt (SG), Switzer-

land, in accordance with the European Guideline ETAG 027 “Falling Rock Protection Kits”. In the rockfall tests under real-life

conditions, the rocks are thrown vertically into the central field of a three-field barrier with a 10 m distance between the posts

of each field. An impact speed of at least 25 m/s is achieved. These investigations are inspected by notified testing centers

and obtain European approval, known as ETA (European Technical Assessment). The current system, GBE-500A, has the

assessment no. ETA – 09/0085.

IV QUALITY CONTROL FOR INSTALLATION

This product manual describes the planning and installation of the barriers in detail.

Page 5/40


V PRODUCT LIABILITY

Rockfall, slipping, landslides, and avalanches occur sporadically and cannot be predicted. Causes range from human activity

(building work, etc.) right through to force majeure (weather, earthquakes, etc.). Due to the wide variety of triggers for these

events, it is not possible to develop a scientific approach that will guarantee the safety of persons and property.

However, the risk of injury and loss of property can be significantly reduced by applying appropriate engineering calculations

using foreseeable parameters and by creating proper protection measures accordingly in specific risk areas.

These systems must be monitored and maintained to ensure the required level of safety. This level of safety can also be di-

minished through incidents, natural disasters, insufficient dimensioning, failure to use standard components, systems, or origi-

nal parts, and corrosion (caused by environmental pollution, other human factors, or other external influences).

As a contrast to the rockfall tests under real-life conditions – which test a very tough load but only illustrate a standardized sit-

uation – very different barrier arrangements and designs may arise in the field as a result of topography. The impact of these

modifications and adjustments cannot always be determined exactly. Critical points include the distance between posts,

changes in direction, the installation angles of the rope anchors, the angle of impact, and the speed of impact.

Geobrugg is able to provide assistance when you are assessing the influence of significant anomalies and special situations,

and offer suggestions for feasible solutions. However, Geobrugg cannot guarantee consistent performance of the type

demonstrated in the rockfall tests under real-life conditions. In critical cases, it is advisable to reinforce individual components

against the standard barrier.

Page 6/40


1 CONTENTS

2 HAZARD NOTES ................................................................................................................ 7

3 TOOLS FOR INSTALLING ROCKFALL BARRIERS ............................................................. 8

4 USING THE WIRE ROPE CLIPS ......................................................................................... 9

5 STAKING-OUT IN ACCORDANCE WITH THE TERRAIN ................................................... 11

6 INSTALLING THE ROPE ANCHOR ................................................................................... 17

7 ANCHORING THE BASE PLATE ...................................................................................... 18

8 PREPARING THE MESHES AND POSTS .......................................................................... 21

9 CRANE OR HELICOPTER ASSEMBLY ............................................................................. 24

10 SUPERSTRUCTURE INSTALLATION STEPS ................................................................... 25

11 ASSEMBLY DETAILS ....................................................................................................... 27

12 SUPPORT ROPE SEPARATION WITH INTERMEDIATE ANCHORING .............................. 34

13 SPECIAL SOLUTIONS IN ADDITION TO THE STANDARD SOLUTION............................. 36

14 FINAL CHECK .................................................................................................................. 37

Page 7/40


EXPLANATIONS OF THE SYMBOLS USED

Safety note: Must be followed

Note/reminder that will help you to install the system easily and correctly

Consultation with Geobrugg is recommended

Upslope

Downslope

2 HAZARD NOTES

QUALIFICATION OF THE GROUP LEADER

Only a qualified group leader may be put in charge of the installation.

TENSIONED ROPES

Ropes will be tensioned. When installing and pretensioning ropes, ensure that there are no persons within in the

danger area.

RELEASING TENSIONED PARTS

Releasing or separating tensioned parts should be avoided wherever possible. If this is necessary, however, please

exercise the utmost caution.

Page 8/40


3 TOOLS FOR INSTALLING ROCKFALL BARRIERS

ST

AK

IN

G-O

UT

W

OR

K • 30 – 50 m measuring tape

• Measure stick

• 5 red and white ranging poles

• Inclinometer

• Spray can

• Wooden peg or iron peg (min. 3x for each field)

• Hammer/mallet

• Manual

IN

ST

AL

LA

TIO

N W

OR

K

• Open-ended or ring wrench

• Socket wrench set with ratchet

• Torque wrench, range 25 – 400 Nm (see tightening torque required for wire rope clips and base plate

fastening nuts)

• Open-ended wrench for base plate fastening nuts

• Felco C16 or C112 wire rope cutter or similar; 12 mm cutting capacity

• Cutting-Off wheel or hammer wire cutter; 28 mm cutting capacity

• pincers, flat-nose pliers

• 2 mm galvanized wire strands or wire

• Angle spirit level

• Roll of adhesive tape

• 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 9/40


t e

4 USING THE WIRE ROPE CLIPS

Instructions below apply to all wire rope clips according FF-C-450 type 1 class 1 (similar EN

13411-5 type 2) delivered by Geobrugg AG.

The distance e between the wire rope clips should be at least 1 x t but not exceed 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.

If you are using a thimble in the loop structure, the first wire rope clip must be attached direct-

ly next to the thimble. For loops without a thimble the length h between the first wire rope clip

and the point of load incidence must minimally be 15-time the nominal diameter of the rope. In

unloaded condition the length h of the loop should be not less than the double of the loop

width h/2.

The clamping brackets (U-brackets) must always be fitted to the unstressed end of the rope, the clamping jaws (saddle) must

always be fitted to the strained rope („never saddle a dead horse“).

During tightening the nuts have to be tensioned equally (alternately) until the required tightening torque is reached.

The required tightening torques with lubrication apply to wire rope clips whose

bearing surfaces and the threads of the nuts have been greased with Panolin CL

60 multipurpose lubricant spray (or an equivalent lubricant).

FF-C-450 type 1 class 1

min. 3 x e

h/2

h

Page 10/40


Wire rope di-

ameter

[mm]

Size

of the

wire rope clip

Required amount

of

wire rope clips

Required

tightening torque

lubricated

[Nm]

Required

tightening torque

unlubricated

[Nm]

Wrench size

[mm]

14 - 15 9/16“ 3 50 150 24

18 - 20 3/4‘‘ 4 90 180 27

A visible contusion of the wire ropes positively indicates that the wire rope clips have been tightened to the required

tightening torque.

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.

After the first load application the tightening torque has to be checked and if

not fulfilled adjusted to the required value.

Page 11/40


5 STAKING-OUT IN ACCORDANCE WITH THE TERRAIN

GENERAL PRINCIPLES FOR STAKING OUT

Position of the barrier

Tried-and-tested simulation programs are available for determining the optimum position of the barrier. Inappropriate locations

with excessive displacements or terrain flaws are identified.

Barrier line

It is important to design the barrier line in a way that ensures it is as straight as possible and runs horizontally. Irregular lines

as well as depressions and cambers in the terrain between the posts must be avoided or corrected wherever possible.

Position of the foundation

The base plate support of the foundation must be laid against the terrain in such a way that the lower bottom support rope re-

mains close to the ground.

The base plate must be positioned in such a way that the bottom support rope bypasses and is not damaged by the edges of

the foundation.

Page 12/40


Height Differences in the barrier line

h: Barrier height

x: Distance between posts

n: Adjustment of the mesh lengths

h: Height difference between two adjacent posts

Tab. 2

Post spacing 6-8 m 8-10 m 10-12 m

h < 1.00 m < 1.50 m < 2.00 m No change necessary

h > 1.00 m > 1.50 m > 2.00 m Mesh must be adapted

In the event of a height difference that is greater than what is specified in Tab. 2, contact Geobrugg so that the cor-

rect mesh length can be determined

h h

x

x

n

Page 13/40


Staking-Out Geometry

GENERAL PRINCIPLES FOR STAKING-OUT GEOMETRY

Standard Staking-Out measurements

If you comply with the standard staking-out measurements and their tolerances specified on the next few pages, it will be pos-

sible to install the barrier without any problems and all components will function properly in the event of an incident.

Adjustments for the terrain

Depending on the terrain, it may not always be possible to comply with the standard staking-out measurements. To ensure

that the barrier still functions properly in these cases, you may make several small adjustments to the cross-section or length

of meshes, ropes, posts, etc.

If you inform Geobrugg of these deviations, we can work together to find a adapted solution quickly.

1) Rope anchor Lateral anchoring

2) Change in direction toward the upslope Downslope anchoring

3) Intermediate anchoring with support rope separation

4) Change in direction toward the downslope Upslope anchoring

5) Intermediate anchoring without support rope separation

Page 14/40


STANDARD STAKING OUT FOR STRAIGHT BARRIER LINE

The following table applies to a ground slope of 30°- 90°

Dimensions in m; dimension tolerance ± 0,20 m

1) In a ground slope of less than 30°, the distance between post and retaining rope anchor is modified.

h a c d 1) e

2.00 3.00 0.65 3.40 1.00

3.00 4.50 1.00 5.10 1.50

3.50 5.30 1.15 6.00 1.75

4.00 6.00 1.35 6.80 2.00

4.50 6.80 1.50 7.70 2.25

5.00 7.50 1.65 8.50 2.50

a x

x/2

c

d

A

B,C

D D

x/2

Length

h: Barrier height

x: Distance between

posts

Anchor point

A: Top support rope

B: Bottom support rope

C: Lateral anchoring

D: Upslope anchor rope

1)

Tab. 3

0° – 29°

d

e

D

d: see Tab. 3

e: see Tab. 3

Anchor point

D: Upslope anchor

rope

T: Downslope

anchoring

T

Page 15/40


CHANGE IN DIRECTION TOWARD THE UPSLOPE

In the event of a change in direction in relation to the upslope involving an angle of 5° – 15°, downslope anchoring (T) is also

required. The rope anchor is placed on the downslope side at distance (e) from the post.

The downslope anchoring has a rope diameter of d = 14 mm.

INTERMEDIATE ANCHORING

e

T

x/2

5°<y<15°1)

x/2

x

2)

Length

e: see Tab. 3

x: Distance between

posts

y: Angle of change in

direction

Anchor point

T: Downslope

anchoring

Intermediate anchoring

In the case of changes in direction toward the upslope with an angle of

more than 15°, intermediate anchoring is required; there is no downslope

anchoring in this case.

5) Length

a: see Tab. 3

c: see Tab. 3

y: Angle of change in

direction

Anchor point

Z: Intermediate

anchoring

15°<y<25° a

a

Z Z

c

c

y

D

D

Page 16/40


ROPE ANCHOR FOR SUPPORT ROPE SEPARATION WITH INTERMEDIATE ANCHORING

A support rope separation also includes intermediate anchoring. With simple terrain conditions and suitable tools, we recom-

mend a support rope separation after approximately 60 – 100 m.

Note: In the case of changes in direction toward the upslope with an angle of more than 25°, a support rope separa-

tion must also be installed for intermediate anchoring purposes.

CHANGE IN DIRECTION TOWARD THE DOWNSLOPE

In the case of changes in direction toward the downslope with an angle of more than 30°, an additional upslope anchor rope

(D) is installed on the post (three upslope anchor ropes instead of two). The maximum change in direction toward the

downslope is 40°.

c

a a

B,Z B,Z

30°<y<40°

d

D D

D

4)

Length

d: see Tab. 3

Anchor point

D: Upslope anchor

rope

Length

a: see Tab. 3

c: see Tab. 3

Anchor point

B: bottom support ropes

Z: Intermediate anchoring

3)

Page 17/40


6 INSTALLING THE ROPE ANCHOR

The angle of the posts depends on the terrain slope; see Table 4.

With a terrain slope of < 30° and > 45°, small adjustments may have to be made when staking out; e.g., in the

length of the upslope anchor ropes, the angle between the upslope anchor rope and the post, the incline of the base

plate, and so on.

Depending on the terrain conditions but in any case, if terrain slope angle > 45° it is recommended to use “gap fill-

ing nets” (additional mesh between the terrain and bottom part of the mesh)

The anchor bore holes are drilled in the direction of movement with a minimum incline of ≥ 15° to the

horizontal.

=75

°

> 15°

> 35°

D

T

d

e

ß Ω

0° – 30° 15°

32° 17°

34° 19°

36° 21°

38° 23°

40° 25°

42° 27°

44° 29°

45° 30°

: Angle must be between 65° and 85°

: The default angle between the terrain and

the post is 75°.

Tab. 4

Page 18/40


7 ANCHORING THE BASE PLATE

STANDARD BASE PLATE (TYPE 1)

LOOSE GROUND:

• Permitted installation position of the base plate 29: Inclined 0 – 30°

to the horizontal

• Drill hole for the main anchor 05

• Prepare the concrete foundation 111; the concrete foundation is di-

mensioned and reinforced in accordance with the information from

the project engineer (Geobrugg recommendation: 0.6x0.4x0.15 m)

• Insert the anchor 05, spacers 09, and fastening nuts 10; the project

engineer calculates the lengths of the anchors

• Optional: stabilization tube 04 for vertical anchor

• Important: Spacers and fastening nuts must be fixed on both

sides of the base plate 29

• Mortar the main anchor 05 in the loose ground 110

• Drill and install securing anchor 06 by using the base plate as tem-

plate. Length min. 1.0 m

• Fill in the concrete foundation 111

• Tighten the fastening nuts 10 to

approx. 30 kN pretensioning force

CONCRETE:

• Can be used for all types of soil and rock

• Dig a hole for the concrete foundation 111

• Drill the rear anchoring 07; the project engineer calculates the

lengths of the anchors

• Prepare the concrete foundation 111; the concrete foundation is di-

mensioned and reinforced in accordance with the information from

the project engineer

• Mortar in the rear anchoring 07 with the fastening nuts 10 and spac-

ers 09

• Install both anchors 08 with the help of the base plate 29. Spacers

09 and fastening nuts 10 must be fixed on both sides of the

base plate;

length of anchor 08 L = 0.5 m


• Tighten the fastening nuts 10 to approx. 30 kN pretensioning force

09,10 09,10

09,10 09,10

07

29

09,10

111

07

08

04,05

06

09,10

110

0.15 m

0.4 m

0.6 m

29

111

Page 19/40


ROCK:

• Remove rock around the base plate 29 at 0 – 30° to the horizontal

• Drill holes for the anchor 08 that are vertical to the base plate 29 in-

to the rock 112

• Mortar in the anchor 08; the project engineer calculates the lengths

of the anchors

• Position the base plate 29

• Tighten the fastening nuts 10 with the spacers 09 to approx. 30 kN

pretensioning force after the mortar has fully hardened

OPTIONAL BASE PLATE (TYPE 2)

LOOSE GROUND:

• Permitted installation position of the base plate 29: Inclined 0 – 30°

to the horizontal

• Drill holes for the anchors (vertical and inclined 45° to the base plate

to accommodate inclined anchors)

• Prepare the concrete foundation 111; the concrete foundation 111 is

dimensioned and reinforced in accordance with the information from

the project engineer (Geobrugg recommendation: 0.6x0.4x0.15 m)

• Insert the anchor 05, spacers 09, and fastening nuts 10; the project

engineer calculates the lengths of the anchors

• Optional: stabilization tube 04 for vertical anchors

• Important: Spacers and fastening nuts must be fixed on both

sides of the base plate 29

• Mortar the anchor 05 in the loose ground 110


• Tighten the fastening nuts 10 to approx. 30 kN pretensioning force

09,10

29

08

08

09,10

112

09,10

09,10

04,05 110

29

0.15 m

0.4 m 0.6 m

09,10

05

111

Page 20/40


CONCRETE:

• Can be used for all types of soil and rock

• Dig a hole for the concrete foundation 111

• Drill the rear anchoring 07; the project engineer calculates the

lengths of the anchors

• Prepare the concrete foundation 111; the concrete foundation 111 is

dimensioned and reinforced in accordance with the information from

the project engineer

• Mortar in the rear anchoring 07 with the fastening nuts 10 and spac-

ers 09

• Install both anchors 08 with the help of the base plate 29. Spacers

09 and fastening nuts 10 must be fixed on both sides of the

base plate;

length of anchor 08 L = 500 mm


• Tighten the fastening nuts 10 to approx.

30 kN pretensioning force

ROCK:

• Remove rock around the base plate 29 at 0 – 30° to the horizontal

• Drill holes for the anchor 08 that are vertical to the base plate 29 in-

to the rock 112

• Mortar in the anchor 08; the project engineer calculates the lengths

of the anchors

• Position the base plate 29 in the levelling layer of mortar

• Tighten the fastening nuts 10 with the spacers 09 to approx. 30 kN

pretensioning force after the mortar has fully hardened

Tightening torque of the fastening nut for an anchor pretensioning force of approx. 30 kN:

Swiss-GEWI NG 20 Swiss-GEWI NG 25 Swiss-GEWI NG 28

Tightening torque 200 Nm 300 Nm 400 Nm

You must use mortar that is resistant to both frost and de-icing salt.

Reinforcement: 12 mm rebar diameter, 150 mm apart

An installation template can be supplied on request.

Please ensure the anchors have sufficient contact with the mortar, create a good bond, and that enough of the sur-

face makes contact with the surrounding material.

You can find more information about anchoring the base plate in the anchor data sheet.

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.

09, 10

09, 10

08

07

07

29 09,10

111

09, 10 08

29

112

09,10

Page 21/40


8 PREPARING THE MESHES AND POSTS

CORRECT SIDE OF THE MESH BUNDLE

The posts are numbered from left to right (from the downslope)

S: The mesh bundles are installed to the right of the posts as standard.

X: In the event of significant height differences, it is easier to pull the mesh down from the higher post to

the lower post.

If specified in the order instructions, Geobrugg will supply the bundles on the left side of the posts.

Page 22/40


33

83

67

83

66

83

69

42

39

PREPARING THE POSTS

It is a schematic illustration of the mesh bundle, make sure that the right number of meshes rest free.

33 1 pcs Running wheel with straight 1“ shackle

39 2 pcs U-Profile as support rope guide

42 1 pcs TECCO mesh bundle

66 2 pcs Upslope anchor rope

67 1 pcs Lateral anchor rope

69 1 pcs Vertical rope

83 3 pcs 5/8" shackle

Page 23/40


103

103

A

VIEW A

101

102

104

CORRECT HEIGHT OF THE MESH BUNDLE

The height of the top row of mesh 101 is just above the height of the pre-mounted running wheels.

The assembly bracket 102 is connected at the appropriate height between the rungs 103 and the post web.

The mesh bundle is connected to the assembly bracket and secured in place with straps 104.

8 meshes on the top and 8 meshes on the bottom of the panel are marked, that means the meshes are free. The

support rope is not guided through this meshes.

Page 24/40


105

9 CRANE OR HELICOPTER ASSEMBLY

The mesh bundle is secured in place with straps 104.

To lift the posts, use the middle 5/8" shackle 89 on the post head.

Do not use the rungs 103 under any circumstances!

104

103

102

Page 25/40


10 SUPERSTRUCTURE INSTALLATION STEPS

The following information contains the individual installation steps for a standard installation. The corresponding details are

described later.

• Anchors are drilled and the foundations are completed.

Install overturn securing ropes on the posts.

• Erect the posts preassembled with the mesh using upslope anchor ropes and overturn securing ropes, and fix the

ropes and overturn securing ropes.

The utmost caution must be exercised in danger areas while the posts are still able to tilt forward, backward, or to one

side.

• Install the lateral anchor ropes and intermediate anchor ropes.

• Install the U-Brakes for the top support rope on the anchors. Guide the top support ropes from one of the U-

Brakes to the other U-Brake through the running wheels on the post head and the mesh bundles and tension it.

Page 26/40


• Install the U-Brakes on the anchors, guide the bottom support ropes from one of the U-Brakes to the other U-

Brake through the running wheels on the base plate and the mesh bundles, but do not tension them yet.

• Install the vertical ropes close to the two outermost posts.

• Shackle the edge meshes on the vertical ropes.

• Open, fit, and connect the mesh bundles under one another.

Page 27/40


11 ASSEMBLY DETAILS

UPSLOPE ANCHOR ROPES ON ANCHOR

01 1 pcs Spiral rope anchor


95 3 pcs Wire rope clip 9/16” for each rope

95

66

01

Page 28/40


BORDER POST


At the border post the overturn securing rope 68 is installed temporary

66

69

83

83

67

71

33,87

72 33

96

83

69

56,57,58

87

33 2 pcs Running wheel

56 1 pcs M20x110 hex head screw

57 2 pcs Washer for M20

58 1 pcs M20 hex head nut



69 1 pcs Vertical rope

71 1 pcs Top support rope

72 1 pcs Bottom support rope

87 2 pcs 1“ shackle, straight


96 1 pcs Wire rope clip 3/4"

Tightening torque see section 4

Page 29/40


66

83

71

33,8

7

68

83

72

56,57,5

8 33,8

7

MIDDLE POST

Install overturn securing rope immediately after post installation. In the danger zone, extreme caution should be exer-

cised as posts can still flip over backwards.



56 1 pcs M20x110 hex head screw

57 2 pcs Washer for M20

58 1 pcs M20 hex head nut


68 1 pcs Overturn securing rope





Page 30/40


LATERAL ANCHOR ROPE AND BOTTOM SUPPORT ROPE ON ANCHOR


44 1 pcs U-Brake U-150-Type 60-8



84 2 pcs 3/4“ shackle per brake

96 4 pcs Wire rope clip 3/4" per rope

84

96 72

44

01

67

96

67

84

01

44 84

72 96

Page 31/40


TOP SUPPORT ROPE ON ANCHOR




84 2 pcs 3/4“ shackle per brake

96 4 pcs Wire rope clip 3/4" per rope

71

84

44

84

01

96

01

84

84

44

71

Page 32/40


TECCO G80/4 ON THE SUPPORT ROPES (BORDER POST)

34

34

1 2

3

4

5

6

7

1

2

3

4

5

6

7

8

8 loops free

82

8

82

8 loops free

34 The support ropes are not guided through 8 loops on

each side of the post (top and bottom). Fix each second

loop with a round clip to the support rope.

80 3/8" shackle per loop

82 1/2" shackle per loop on vertical rope

Page 33/40


TECCO G80/4 ON THE SUPPORT ROPES (MIDDLE POST)

34

34

1

2

3

4

5

6

7

8

1 2

3

4

5

6

7

8

8 loops free

80

8 loops free

Page 34/40


12 SUPPORT ROPE SEPARATION WITH INTERMEDIATE ANCHORING

A support rope separation always contains an intermediate anchoring.

In case of an intermediate anchoring without support rope separation, the two intermediate anchor ropes are fas-

tened with a 5/8" shackle at the centre hole.



309 1 pcs Structural Bolt M24x110

83 3 pcs 5/8“ shackle

86 4 pcs 1“ shackle


83

86

33,87

67

44

86

44

72

309

Page 35/40


DOWNSLOPE ANCHORING

01 1 pcs Spiral rope anchor,

67 1 pcs Downslope anchor rope

83 2 pcs 5/8“ shackle

94 3 pcs Wire rope clip 9/16”

96 4 pcs Wire rope clip 3/4”

83

01

94

67

83

01

96

67

Page 36/40


13 SPECIAL SOLUTIONS IN ADDITION TO THE STANDARD SOLUTION

STRUT SOLUTION

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 variant.

GULLY SOLUTION

Larger openings between the ground and the lower support rope may form on steep mountain slopes with mountain

torrents. You can consult with Geobrugg to develop individual gully solutions in such cases.

Page 37/40


14 FINAL CHECK

When installation is complete, it is particularly important to check the following points:

a) Are the support ropes as well as the lateral anchor ropes guided to the correct anchors?

b) Have the ropes been guided correctly on the post base and the post head?

c) Has the correct number of loops been left free on the left and the right of the posts?

d) Is the mesh fixed correctly to the support ropes?

e) Is the number of wire rope clips at the rope end connections correct?

f) Are the wire rope clips fitted correctly?

g) Has the right amount of tightening torque been applied to the wire rope clips?

h) Are the meshes connected to one another correctly?

i) Are the edge meshes connected to the vertical ropes correctly?

j) Is the sagging of the top support rope less than 3% of the distance between posts?

Page 38/40


Page 39/40


Page 40/40


GBE-500A BARRIER - Warco

Documents