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Stabilizacja skarp - Via Gellia, Derbyshire 2017

Rope Access vegetation clearence prior to drilling works beginning

Stabilizacja skarp - Via Gellia, Derbyshire 2017

Showing the large loose block being stabilised by Spider® S3-130

Stabilizacja skarp - Via Gellia, Derbyshire 2017

Looking West at the loose block stabilised by Spider® S3-130

Stabilizacja skarp - Via Gellia, Derbyshire 2017

Image showing the DELTAX® G80/2 mesh with underlayed Spider® S3-130 at lower right edge

Stabilizacja skarp - Via Gellia, Derbyshire 2017

DELTAX® G80-2 over full height of slope

Stabilizacja skarp - Via Gellia, Derbyshire 2017

DELTAX® G80/2 drape

 
 

Rok Instalacji / Montazu

2017

Sytuacja początkowa

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.

Opis zastosowanego rozwiazania

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.

Inwestor

Derbyshire County Council

Projektant

AECOM Chesterfield Office

Wykonawca

CAN Geotechnical

Chroniony Objekt

Road, Mine / Quarry

Ochrona przeciwerozyjna

GEOBRUGG SUPERCOATING, GEOBRUGG ULTRACOATING

Osoba kontaktowa na miejscu

Kevin H. Coyle
 

Kevin H. Coyle

Regional Manager Northeast

Zagrożeniami naturalnymi
Nżynieria hydrauliczna
Geobrugg North America, LLC,3 Beaudet Terr,Columbia CT 06237 / USA Regional Manager Northeast

Formularz kontaktowy

Saleh Feidi
 

Saleh Feidi

Regional Manager California

Zagrożeniami naturalnymi
Nżynieria hydrauliczna
Geobrugg North America, LLC,8921 Emperor Ave.,San Gabriel, California 91775 / USA Regional Manager California

Formularz kontaktowy

John Kalejta
 

John Kalejta

Regional Manager Central US

Zagrożeniami naturalnymi
Nżynieria hydrauliczna
Geobrugg North America, LLC,3215 67th Avenue Pl,Greeley CO 80634 / USA Regional Manager Central US

Formularz kontaktowy

Bob Lyne
 

Bob Lyne

Regional Manager Southeast

Zagrożeniami naturalnymi
Nżynieria hydrauliczna
Geobrugg North America, LLC,8004 Windspray Drive,Summerfield NC 27358 / USA Regional Manager Southeast

Formularz kontaktowy

Pierce Runnels, Civil Engineer
   

Pierce Runnels

General Manager Geobrugg North America

Zagrożeniami naturalnymi
Geobrugg North America, LLC,22 Centro Algodones , Civil Engineer General Manager Geobrugg North America

Formularz kontaktowy

Tim Shevlin
 

Tim Shevlin

Sales Director

Zagrożeniami naturalnymi
Geobrugg North America, LLC,Salem OR 97302 / USA Sales Director

Formularz kontaktowy