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Slope Stability - Heiligenberg 2016

Overview of the protected slope

Slope Stability - Heiligenberg 2016

Before: Visible slope failure

Slope Stability - Heiligenberg 2016

Before: Visible slope failure and lack of material supporting the road embankment

Slope Stability - Heiligenberg 2016

Drilling work

Slope Stability - Heiligenberg 2016

Drilling work

Slope Stability - Heiligenberg 2016

Construction began at the top of the slope and worked down. Now the slope is fully stable and protected against erosion.

Slope Stability - Heiligenberg 2016

Detail of the protected slope. Visible addition of an erosion control mat.

Slope Stability - Heiligenberg 2016

Protected slope: View from the top.

 
 

Year of installation

2016

Initial situation

The Country Road L201 crosses a steep slope atop of the Alte Steige in Heiligenberg near Lake Constance. It was built leading through the instable slope founded on the local conglomerate Nagelfluh. After a landslide in winter 20142015 the entire area was closed to protect the public from future impacts. During the winter of 2015/2016, work began to stabilize and support the slope and roadway foundation above. The main goal is prevention of a slope collapse because of the long-term effects of heavy spring rains.

Description

The customer opted for a two-part solution. First, the upper two thirds of the slope were secured with TECCO® G65/3 in combination with a jute erosion control mat. Then, to support the bottom of the slope and assure stable footing, riprap was installed.

Customer

Road Authority Bodenseekreis

Contractor

Nacken GmbH

Protected object

Road

Corrosion protection

GEOBRUGG SUPERCOATING

Engineering

LGRB Geological Survey of Baden-Württemberg

Other participating companies

Sidla & Schönberger Spezialtiefbau GmbH

Your local contact

Roger Moor
   

Roger Moor

Country Manager Ost- und Zentralschweiz, Liechtenstein

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Geobrugg AG,Aachstrasse 11,8590 Romanshorn / Switzerland 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

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Geobrugg AG,Industriestrasse 21,5200 Brugg / Switzerland Country Manager Kantone AG BE BL BS FR GE JU NE SO VD VS

E-Mail

Alexander Bittendorfer
   

Alexander Bittendorfer

Project Manager Inspection Services

Natural Hazards
Geobrugg AG,Aachstrasse 11,8590 Romanshorn / Switzerland Project Manager Inspection Services

E-Mail

Isacco Toffoletto
   

Isacco Toffoletto

Ticino Country Manager

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Geobrugg AG Ticino,Stabile Cometal, via Pizzante 7,6595 Riazzino / Switzerland Ticino Country Manager

E-Mail