TRENCHING IN SANDSTONE
Fast and accurate using a KEMROC chain cutter
While upgrading the A3 Autobahn in northern Bavaria, the Steigerwald Süd service area was to be increased in size which involved extensive trenching work. Civil engineers, EIFFAGE Infra Bau SE and JOHANN BUNTE Bauunternehmung GmbH & Co KG rented a 42-ton excavator with a KEMROC EK 150 chain cutter attachment to carry out the work. Even at depths down to nine meters, the chain cutter worked its way through the compact sandstone with precision to the nearest centimetre. Despite working in such difficult geological conditions, consumable costs were kept within reasonable limits.
Upgrading the A3 Autobahn in northern Bavaria to a six-lane motorway is a mammoth project. The distance between autobahn exits Biebelried and Fürth/Erlangen is about 76 km. Two companies, EIFFAGE Infra Bau SE and JOHANN BUNTE Bauunternehmung GmbH & Co KG, joined together to form the joint venture A3 Nordbayern GmbH & Co KG as part of the PPP partnership responsible for construction, maintenance, management and partial financing of the project. Construction work started in May 2020 with a planned completion date of November 2025, a massive challenge for all concerned. …