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Protezione da caduta massi - Skagway, Alaska 2020

Completed RXE-8000, 10 m tall, 35 m wide

Protezione da caduta massi - Skagway, Alaska 2020

Active rockfall chute directly above facilities to be protected

Protezione da caduta massi - Skagway, Alaska 2020

Concrete base support (foundation) steel reinforcment

Protezione da caduta massi - Skagway, Alaska 2020

Construction of post base support (foundation) steel reinforcment and concrete form

Protezione da caduta massi - Skagway, Alaska 2020

Elevated post base support (foundation)

Protezione da caduta massi - Skagway, Alaska 2020

Installation of 10 m tall post and pre-attached 19/3/300 ring nets with a crane

Protezione da caduta massi - Skagway, Alaska 2020

RXE-8000 posts and pre-attached 19/3/300 ring nets

Protezione da caduta massi - Skagway, Alaska 2020

RXE-8000 with transmission ropes guided through the pre-attached 19/3/300 ring nets

Protezione da caduta massi - Skagway, Alaska 2020

Side view of RXE-8000 and post base support elevating the barrier to catch rocks launching from cliff.

Protezione da caduta massi - Skagway, Alaska 2020

Extension of support ropes across south rockfall chute allowing anchorage in rock outcrop. Upper system ATT-80 utilizing SPIDER S4-130 structural netting

Protezione da caduta massi - Skagway, Alaska 2020

Top view of RXE-8000 rockfall barrier

 

Sistemi

 

Lunghezza del sistema

- 36 m

 

Anno di installazione

2020

Situazione iniziale

Skagway is a small coastal city in southeast Alaska that became a gateway to the Klondike during the 1896 gold rush. Skagway is now a popular cruise ship destination and launching point for the historic narrow-gauge railroad between Skagway and White Pass Summit, which is a touristic attraction. The cruise ship dock and railroad are located at the base of the steep hills forming the fjord where there are two very active rockfall chutes.  

Descrizione

Various rockfall protection measures have been installed at this site over the past 20 years, including cable net draped attenuators, a rockfall barrier, and a modern rockfall attenuator utilizing SPIDER S4-130 as the structural mesh. The latest installation is an RXE-8000 (8,000 kJ).

Challenges included anchorage and support ropes crossing an active rockfall chute and a tall launching cliff directly above the barrier, requiring elevated post-base supports (foundations).

Paese / Regione

Stati Uniti

Progettazione:

Oggetto protetto

Ferrovia, Infrastrutture turistiche, Altri

Protezione dalla corrosione

Galvanized, GEOBRUGG SUPERCOATING

Il contatto locale

Saleh Feidi
 

Saleh Feidi

Sistemi contro il dissesto idrogeologico
DPC per l’industria e l’edilizia
Geobrugg North America, LLC,8921 Emperor Ave.,91775 San Gabriel, California / Stati Uniti

E-mail

Bryant Jackson
 

Bryant Jackson

Sistemi contro il dissesto idrogeologico
DPC per l’industria e l’edilizia
Geobrugg North America, LLC,22 Centro Algodones,87001 Algadones / Stati Uniti

E-mail

John Kalejta
 

John Kalejta

Regional Manager Rocky Mountains / Central USA

Sistemi contro il dissesto idrogeologico
DPC per l’industria e l’edilizia
Geobrugg North America, LLC,KS 67226 Wichita / Stati Uniti Regional Manager Rocky Mountains / Central USA

E-mail

Robert Long
 

Robert Long

Regional Sales Manager Southeast

Sistemi contro il dissesto idrogeologico
DPC per l’industria e l’edilizia
Geobrugg North America, LLC,24905 Winterberry LN,60585 Plainfield / Stati Uniti Regional Sales Manager Southeast

E-mail

Pierce Runnels, Civil Engineer
   

Pierce Runnels

Sales Director North America

Sistemi contro il dissesto idrogeologico
Geobrugg North America, LLC,22 Centro Algodones , Civil Engineer Sales Director North America

E-mail

Tim Shevlin
 

Tim Shevlin

Sistemi contro il dissesto idrogeologico
DPC per l’industria e l’edilizia
Geobrugg North America, LLC,2050 Timber St S,OR 97302 Salem / Stati Uniti

E-mail