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Consolidamento di versanti - Schänis, State Road 17 2016

Installation using a mobile drill rig

Consolidamento di versanti - Schänis, State Road 17 2016

Installing a section towards south-east, before placing the spike plates

Consolidamento di versanti - Schänis, State Road 17 2016

Protected object: Quiet during the day, very congested during rush-hour

Consolidamento di versanti - Schänis, State Road 17 2016

Risk of toppling rocks is a thing of the past: SPIDER® ensures safe traffic (view of the north-eastern section)

Consolidamento di versanti - Schänis, State Road 17 2016

Location: Linth Plain, Switzerland Federal Office of Topography, Bern, Switzerland National Map 1:50'000

 

Anno di installazione

2016

Situazione iniziale

The area was formed by glaciers. With climate change, the rock underneath, molasse conglomerate rock, has become more unstable. During the past few years sections of rock, some with volumes of around 1 m³, became dangerously loose and were in danger of eminent fall onto the road, the building below and the neighboring pastures.

The Swiss State Agency for Forest and Natural Hazards immediately alerted the regional road inspectorate and political community to the potential risk.

Geologia

Instable blocks of molasse conglomerate.

Descrizione

As a short term emergency measure Geobrugg worked with the regional road administration and a local contractor to stabilize the most critical rock sections with SPIDER® S3-130.

As a long-term solution that ensures safe driving conditions for daily commuting, an anchored system was installed. Along the deep chasms all along the molasse bar, three levels of anchors were drilled. The higher and lower levels were drilled to a length of 4 m while the anchors of the middle rows were drilled to a length of 7 m. These anchors were drilled to a grid that measures 2.15 m x 2.15 m.

The whole project from planning to final acceptance took only six weeks.

Cliente

State Department for Underground Construction, Canton St.Gallen, Switzerland

Contraente:

Oberholzer Inc., Neuhaus, Switzerland

Oggetto protetto

Strada, Costruzione

Protezione dalla corrosione

GEOBRUGG SUPERCOATING

Progettazione:

Geobrugg AG, Geohazard Solution

Il contatto locale

Roger Moor
   

Roger Moor

Country Manager Ost- und Zentralschweiz, Liechtenstein

Sistemi contro il dissesto idrogeologico
Ingegneria idraulica
Miniera / Gallerie
Geobrugg AG,Aachstrasse 11,8590 Romanshorn / Svizzera Country Manager Ost- und Zentralschweiz, Liechtenstein

E-mail

René Müller
   

René Müller

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

Sistemi contro il dissesto idrogeologico
Ingegneria idraulica
Miniera / Gallerie
Geobrugg AG,Industriestrasse 21,5200 Brugg / Svizzera Country Manager Kantone AG BE BL BS FR GE JU NE SO VD VS

E-mail

Alexander Bittendorfer
   

Alexander Bittendorfer

Project Manager Inspection Services

Sistemi contro il dissesto idrogeologico
Geobrugg AG,Aachstrasse 11,8590 Romanshorn / Svizzera Project Manager Inspection Services

E-mail

Isacco Toffoletto
   

Isacco Toffoletto

Ticino Country Manager

Sistemi contro il dissesto idrogeologico
Ingegneria idraulica
Miniera / Gallerie
Geobrugg AG Ticino,Stabile Cometal, via Pizzante 7,6595 Riazzino / Svizzera Ticino Country Manager

E-mail