Immediate Measure using GEWI®Plus Bar Anchors: Stabilization of a Rock Fall near Vorau

In November 2016, a large rock fell onto L 405 Vorau Road near km 22.7 between the towns of Vorau and Rohrbach in Styria, Austria. As a result of this rock slide, the L 405 was closed to traffic in this area.

In order to permit a partial reopening of the road, immediate steps were required. The rock face was stabilized from the road using a crane mount from which approx. 750m of boreholes and rock anchors had to be installed. Furthermore, the partly fractured rock was stabilized using 1,200m² of rock mesh.

To stabilize the rock fall, DSI Austria supplied 950m of 28mm Ø, 3-12m long GEWI®Plus Bar Anchors including accessories.

Due to the fractured rock, the 150 GEWI®Plus Bar Anchors had to be installed with fabric tubes from a telescopic work platform. For this purpose, the GEWI®Plus Bar Anchors were fitted with 900m of 90mm Ø fabric tubes.

Owner

Amt der Steiermärkischen Landesregierung, Fachabteilung 16, Austria

General Contractor

SWIETELSKY Baugesellschaft m.b.H., Austria

Contractor

SWIETELSKY Baugesellschaft m.b.H., Austria

Consulting Engineers

GDP ZT GmbH, Austria


Unit

DSI Underground Austria GmbH, Austria

Scope

Production, supply

Products

150 28mm Ø, 3-12m long GEWI®Plus Bar Anchors, 900m of 90mm Ø fabric tubes

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