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A company of the BRUGG Group
United States
Via Gellia, Derbyshire 2017 - Geobrugg Via Gellia, Derbyshire 2017 - Geobrugg
Via Gellia, Derbyshire 2017 - Geobrugg Via Gellia, Derbyshire 2017 - Geobrugg
Via Gellia, Derbyshire 2017 - Geobrugg Via Gellia, Derbyshire 2017 - Geobrugg
Via Gellia, Derbyshire 2017 - Geobrugg Via Gellia, Derbyshire 2017 - Geobrugg
Via Gellia, Derbyshire 2017 - Geobrugg Via Gellia, Derbyshire 2017 - Geobrugg
Via Gellia, Derbyshire 2017 - Geobrugg Via Gellia, Derbyshire 2017 - Geobrugg

Via Gellia, Derbyshire

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Street
A5102 Via Gellia Road Matlock
ZIP code
DE4 4HU
Place
Matlock, Derbyshire
Country/Region
United Kingdom
Year of installation
2017
Customer
Derbyshire County Council
Engineering
AECOM Chesterfield Office
Contractor
CAN Geotechnical
Protected object
Road, Quarry / Mine
Systems
DELTAX® G80/2, SPIDER® S3-130
Corrosion protection
GEOBRUGG SUPERCOATING®, GEOBRUGG ULTRACOATING®
Stabilized area
946 m²
Maximum slope height
15 m
Slope inclination
70 ° - 85 °
Exposition
North
Initial situation

During routine maintenance of the rock slope it was noted that a large block was very close to failure. AECOM undertook the geological mapping and survey.

Description

AECOM designed a DELTAX® drape to 90 % of the slope to control the weathering and failure of the rock slope. The large block is a different issue and SPIDER® S3-130 was specified to hold the large block in place. The site was cleared of vegetation, any large trees were treated with eco plugs to kill off the growth of the stump.

Using DTH (down the hole hammer) drilling methods working from top down 3 metres deep GEWI 25 bar was installed. The upper 3 rows of bolts were installed with resin grout, the lower rows were grouted with OPC water mix.

The SPIDER® S3-130 mesh was installed first and secured at all edges with 14 mm wire rope and P33 system spike plates. 

Once all the bolts had been installed the DELTAX® G80/2 mesh was installed from top down over the full site including over the top of the SPIDER® S3-130 mesh. This was profiled in place with P33 system spike plates.

12 mm boundary rope was installed and tensioned to the rockface on all edges. This 12 mm rope was secured to the DELTAX® G80/2 mesh with T2 compression claws.

The road was reopened to public use just 11 days after closure. A total of 946 m² of DELTAX® G80/2 and 235 m² of SPIDER® S3-130 were installed with 44 number 3 meters long GEWI 25 bars.

Your local contact

Kevin H. Coyle
Kevin H. Coyle
Regional Manager Northeast
Natural Hazards
Geobrugg North America, LLC
3 Beaudet Terr
Columbia CT 06237 / USA
Phone +1 860 377 3230

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Saleh Feidi
Saleh Feidi
Regional Manager California
Natural Hazards
Geobrugg North America, LLC
8921 Emperor Ave.
San Gabriel, California 91775 / USA
Phone +1 909 706 8964

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John Kalejta
John Kalejta
Regional Manager Central US
Natural Hazards
Geobrugg North America, LLC
3215 67th Avenue Pl
Greeley CO 80634 / USA
Phone +1 505 220 1404

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Bob Lyne
Bob Lyne
Regional Manager Southeast
Natural Hazards
Geobrugg North America, LLC
8004 Windspray Drive
Summerfield NC 27358 / USA
Phone +1 336 337 0945

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Pierce Runnels, Civil Engineer
Pierce Runnels, Civil Engineer
General Manager Geobrugg North America
Natural Hazards
Geobrugg North America, LLC
22 Centro Algodones
Phone +1 505 771 4080
Mobile +1 505 400 0796

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Tim Shevlin
Tim Shevlin
Sales Director
Natural Hazards
Geobrugg North America, LLC
4676 Commercial St. SE, PMB 174
Salem OR 97302 / USA
Phone +1 503 423 7258

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