Samphire Hoe in Dover 2015 - Geobrugg Samphire Hoe in Dover 2015 - Geobrugg
Samphire Hoe in Dover 2015 - Geobrugg Samphire Hoe in Dover 2015 - Geobrugg
Samphire Hoe in Dover 2015 - Geobrugg Samphire Hoe in Dover 2015 - Geobrugg
Samphire Hoe in Dover 2015 - Geobrugg Samphire Hoe in Dover 2015 - Geobrugg
Samphire Hoe in Dover 2015 - Geobrugg Samphire Hoe in Dover 2015 - Geobrugg
Samphire Hoe in Dover 2015 - Geobrugg Samphire Hoe in Dover 2015 - Geobrugg
Samphire Hoe in Dover 2015 - Geobrugg Samphire Hoe in Dover 2015 - Geobrugg
Samphire Hoe in Dover 2015 - Geobrugg Samphire Hoe in Dover 2015 - Geobrugg
Samphire Hoe in Dover 2015 - Geobrugg Samphire Hoe in Dover 2015 - Geobrugg
Samphire Hoe in Dover 2015 - Geobrugg Samphire Hoe in Dover 2015 - Geobrugg
Samphire Hoe in Dover 2015 - Geobrugg Samphire Hoe in Dover 2015 - Geobrugg

Samphire Hoe in Dover

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Lugar
Kent
País / Região
Reino Unido
Ano de instalação
2015
Cliente
Network Rail Ltd.
Engenharia
Fairhurst - Consulting Structural and Civil Engineers
Contratante:
CAN Geotechnical Ltd.
Objecto protegido
Caminho de ferro
Sistemas
GBE-500A, GBE-1000A
Absorção de energia máxima
500 kJ, 1000 kJ
Altura do sistema
4.0 m, 5.0 m
Comprimento do sistema
446 m - 785 m
Protecção contra a corrosão
Galvanizado, GEOBRUGG SUPERCOATING®
Outras aplicações instaladas
Estabilização de taludes
Situação inicial

The chalk cliffs at Dover form a vital element of the Kent Downs Area of outstanding natural beauty, a nationally important and protected landscape. Samphire Hoe is a new piece of land created by Eurotunnel during the construction of the Channel Tunnel.


Samphire Hoe cutting has a history of rockfall, with previous failures landing on the track.
The design remit was to extend the life of the earthwork such that there is a reduced likelihood of speed restrictions or line closure due to rockfall.


Tactile inspection by Fairhurst revealed the main mechanisms of slope instability to comprise ravelling across the slope face, caused by surface weathering and preferential erosion of weaker chalk horizons, together with more localised toppling, wedge sliding and planar sliding failures of individual blocks.

Descrição

Working alongside Fairhurst - Consulting Structural and Civil Engineers of Glasgow CAN Geotechnical Ltd. undertook the installation of 13 individual Geobrugg rockfall barriers. The GBE range of barriers were chosen for their ease of installation. Their low anchor forces meant shorter anchors with the resultant decrease in drilling time, allowing for a far shorter program.  The strict vertical drop testing and certifications that come with these fences meant that the only choice of supplier was the world leading technology innovator Geobrugg.


Rockfall analysis was undertaken by Fairhurst and the system energy and height were specified from this point forward. In total 785 metres of GBE-500A and 446 metres of GBE-1000A have been installed between Abbotscliffe and Shakespeare Tunnels. The barriers were used in combination with localised areas of Geobrugg high tensile TECCO® SYSTEM³ flexible facing in total 3150 square metres of TECCO® G65/3 and 350 pieces of P33 system spike plates were installed.

O seu contacto local

Kevin H. Coyle
Kevin H. Coyle
Regional Manager Northeast
Riscos naturais
Geobrugg North America, LLC
3 Beaudet Terr
Columbia CT 06237 / Estados Unidos
Telefone +1 860 377 3230

Formulário de contacto

Saleh Feidi
Saleh Feidi
Regional Manager California
Riscos naturais
Geobrugg North America, LLC
8921 Emperor Ave.
San Gabriel, California 91775 / Estados Unidos
Telefone +1 909 706 8964

Formulário de contacto

John Kalejta
John Kalejta
Regional Manager Central US
Riscos naturais
Geobrugg North America, LLC
3215 67th Avenue Pl
Greeley CO 80634 / Estados Unidos
Telefone +1 505 220 1404

Formulário de contacto

Bob Lyne
Bob Lyne
Regional Manager Southeast
Riscos naturais
Geobrugg North America, LLC
8004 Windspray Drive
Summerfield NC 27358 / Estados Unidos
Telefone +1 336 337 0945

Formulário de contacto

Pierce Runnels, Civil Engineer
Pierce Runnels, Civil Engineer
General Manager Geobrugg North America
Riscos naturais
Geobrugg North America, LLC
22 Centro Algodones
Telefone +1 505 771 4080
Telemóvel +1 505 400 0796

Formulário de contacto

Tim Shevlin
Tim Shevlin
Sales Director
Riscos naturais
Geobrugg North America, LLC
4676 Commercial St. SE, PMB 174
Salem OR 97302 / Estados Unidos
Telefone +1 503 423 7258

Formulário de contacto