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낙석방호시스템 - Skagway, Alaska 2020

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

낙석방호시스템 - Skagway, Alaska 2020

Active rockfall chute directly above facilities to be protected

낙석방호시스템 - Skagway, Alaska 2020

Concrete base support (foundation) steel reinforcment

낙석방호시스템 - Skagway, Alaska 2020

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

낙석방호시스템 - Skagway, Alaska 2020

Elevated post base support (foundation)

낙석방호시스템 - Skagway, Alaska 2020

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

낙석방호시스템 - Skagway, Alaska 2020

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

낙석방호시스템 - Skagway, Alaska 2020

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

낙석방호시스템 - Skagway, Alaska 2020

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

낙석방호시스템 - 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

낙석방호시스템 - Skagway, Alaska 2020

Top view of RXE-8000 rockfall barrier

 

Systems

 

System length

- 36 m

 

Year of installation

2020

Situation

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.  

Description

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).

Protected object

Railway, Touristic infrastructure, Other

Corrosion protection

Galvanized, GEOBRUGG SUPERCOATING

Engineering

Other installed applications

낙석방호시스템

Your local contact

Roger Moor
   

Roger Moor

Country Manager Ost- und Zentralschweiz, Liechtenstein

자연 재해
유압 공학
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Geobrugg AG,Aachstrasse 11,8590 Romanshorn / 스위스 Country Manager Ost- und Zentralschweiz, Liechtenstein

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René Müller
   

René Müller

Country Manager Kantone AG BE BL BS FR GE JU NE SO VD VS

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유압 공학
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Geobrugg AG,Industriestrasse 21,5200 Brugg / 스위스 Country Manager Kantone AG BE BL BS FR GE JU NE SO VD VS

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Alexander Bittendorfer
   

Alexander Bittendorfer

Project Manager Inspection Services

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Geobrugg AG,Aachstrasse 11,8590 Romanshorn / 스위스 Project Manager Inspection Services

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Isacco Toffoletto
   

Isacco Toffoletto

Ticino Country Manager

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Geobrugg AG Ticino,Stabile Cometal, via Pizzante 7,6595 Riazzino / 스위스 Ticino Country Manager

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