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落石防护 - Kaikoura SH1 - NS13 2019

Half Moon Bay, looking South: protected by a special hybrid attenuator

落石防护 - Kaikoura SH1 - NS13 2019

NS13 special attenuator under construction

落石防护 - Kaikoura SH1 - NS13 2019

NS13 attenuator under construction

落石防护 - Kaikoura SH1 - NS13 2019

Helicopters were required to lift in the materials

落石防护 - Kaikoura SH1 - NS13 2019

The ringnet was extended to the lateral anchors to provide extra protection and funnel the rocks into the centre fields.

落石防护 - Kaikoura SH1 - NS13 2019

Looking North - road and rail are protected from rockfall

落石防护 - Kaikoura SH1 - NS13 2019

Flex heads were used to connect the ropes to the self drilling anchors - note preserved tree.

落石防护 - Kaikoura SH1 - NS13 2019

Looking South - completed special attenuator with ringnet

落石防护 - Kaikoura SH1 - NS13 2019

Looking North - showing the transition of the impact zone and the attenuation zone

 

系统

TECCO® G65/3 Special Solutions

 

系统长度

56 m

 

安装年份

2019

情况

The Kaikoura M7.8 earthquake caused widespread damage to the road and rail corridor for approximately 20 km North and South of the Kaikoura township. Over forty major slips inundated the road and rail with more than 750'000 m³ of material from source zones up to 500 meters above sea level.  The highly fractured Grey Wacke meant frequent future rockfalls were expected. The rockfall frequency at NS13 created the requirement for a system that attenuated the rockfall energy to a manageable level with no maintenance and easy clearing. 

描述

A 6 m RXE-2000 rockfall barrier was modified into a 56 m special attenuator. The attenuator consisted of a 12/3/350 ROCCO® ringnet in the impact zone (first 10 m) and a 7/3/350 ROCCO® tail (20 m). The lighter 7/3/350 ROCCO® tail was selected to enable the attenuated material to pass through into a catchment area at the toe of the slope for clearing/maintenance. The post spacing was between 8 m - 12 m depending on topography. TECCO® G65/3 was selected as the secondary mesh in the impact zone to ensure the smaller (less than 350 mm) high velocity rocks were also attenuated. GEOBRUGG SUPERCOATING and GEOBRUGG ULTRACOATING were selected due to the close proximity of the sea and Type III flex heads were required due to poor ground conditions.

客户

NCTIR / NZTA

承包商

Ground Anchor Systems

防护对象

Road, Railway

腐蚀保护

GEOBRUGG SUPERCOATING, GEOBRUGG ULTRACOATING

其他安装的应用程序

落石防护

本地联系方式

Roger Moor
   

Roger Moor

Country Manager Ost- und Zentralschweiz, Liechtenstein

自然災害防護
Hydraulic Engineering
矿井/隧道
Geobrugg AG,Aachstrasse 11,8590 Romanshorn / 瑞士 Country Manager Ost- und Zentralschweiz, Liechtenstein

联系地址

René Müller
   

René Müller

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

自然災害防護
Hydraulic Engineering
矿井/隧道
Geobrugg AG,Industriestrasse 21,5200 Brugg / 瑞士 Country Manager Kantone AG BE BL BS FR GE JU NE SO VD VS

联系地址

Alexander Bittendorfer
   

Alexander Bittendorfer

Project Manager Inspection Services

自然災害防護
Geobrugg AG,Aachstrasse 11,8590 Romanshorn / 瑞士 Project Manager Inspection Services

联系地址

Isacco Toffoletto
   

Isacco Toffoletto

Ticino Country Manager

自然災害防護
Hydraulic Engineering
矿井/隧道
Geobrugg AG Ticino,Stabile Cometal, via Pizzante 7,6595 Riazzino / 瑞士 Ticino Country Manager

联系地址