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Max Bögl completes bridge dismantling works
12 August 2024
Max Bögl, one of Germany’s largest construction companies, has completed dismantling and explosive ordinance detection works for the construction of the new OB-Karl-Lehr Bridge in Duisburg, North Rhine-Westphalia.
The OB-Karl-Lehr Bridge in Duisburg is one of the most important transportation routes for Duisburg. (PHOTO: Tyrolit)
A major transport route for the Port of Duisburg, the new OB-Karl-Lehr Bridge replaces an older bridge of the same name.
Like other bridges in the area, the original structure dated back to World War II.
Although the new OB-Karl-Lehr Bridge has already been built and is in active use, it is not yet in its final position.
The bridge is set to be moved so that sits in exactly the same position as the old bridge.
To facilitate this, Max Bögl was commissioned to carry out dismantling works and deep core drilling for explosive ordnance detection in the existing piers and abutments of the original bridge structure.The contractor conducted various core drillings in the abrasive concrete of the existing piers and abutments, with exploratory drillings measuring up to 252 mm in diameter and to depths of 4.5 m to 4.9 m, carried out to detect explosive ordnance.
Max Bögl, which completed the works within a week, used Tyrolit screw drill bits for the bores, which as the concrete dated from the war years, contained a high proportion of abrasive sand.
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