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Kaya düşmesine karşı koruma - La Roche-Blanche 2020

RXE-5000 ringnets protecting the village of La Roche-Blanche (photo credit: Pierre-Yves Giraud, Géop)

Kaya düşmesine karşı koruma - La Roche-Blanche 2020

RXE-5000, 6 meters high, 36 meters long in three fields (photo credit: Pierre-Yves Giraud, Géop)

Kaya düşmesine karşı koruma - La Roche-Blanche 2020

RXE-5000, 6 meters high, 84 meters long (photo credit: Pierre-Yves Giraud, Géop)

Kaya düşmesine karşı koruma - La Roche-Blanche 2020

View up to the unstable limestone rockface (photo credit: Pierre-Yves Giraud, Géop)

Kaya düşmesine karşı koruma - La Roche-Blanche 2020

View of the rockface and the RXE-5000 behind the houses, almost invisible (photo credit: Pierre-Yves Giraud, Géop)

Kaya düşmesine karşı koruma - La Roche-Blanche 2020

View of the RXE-5000 protecting the village of La Roche-Blanche (photo credit: Pierre-Yves Giraud, Géop)

Kaya düşmesine karşı koruma - La Roche-Blanche 2020

View of the two fold protection systems (photo credit: Pierre-Yves Giraud, Géop)

 

Sistemler

 

Sistem uzunluğu

36 m - 84 m

 

Kurulum Yılı

2020

Durum

The rockfall problem at La Roche-Blanche came back to memory in Summer 2019 when large blocks detached from the limestone cliff above the village of La Roche-Blanche. They stopped in the nearest garden without causing much damage. Subsequently, the village ordered a survey of the rockface. The conclusion of this survey on the 22nd of December 2019 detailed the presence of a large fracture with the potential of imminent failure. A total of 1700 m³ was estimated to potential fail. It was decided to evacuate temporarily the residents living closest to the rockface, a tough decision to take just before Christmas.

Açıklama

The authorities opted for a two-fold solution with a custom-made rockfall curtain just under the steep slope and a rockfall protection barrier RXE-5000 beneath it. 

The construction of the rockfall curtain had just been completed, and the posts of RXE-5000 set, when most of the unstable volume, 1500 m³, collapsed in mid-February. The rockfall curtain held back most of the material, nevertheless some parts of the ringnet barrier were damaged. After replacing parts, the installation was finally completed in March 2020.

Yüklenici

Gösterilen obje

Building, Residential area

Korozyon koruması

GEOBRUGG SUPERCOATING

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