Tunnelling The best underground connections. Tunnelling is one of the most demanding disciplines in construction engineering and also happens to be one of PORR’s core competencies. Underground construction requires specialist expertise, innovation, flexibility, and a talent for technological solutions. In addition to the priority of conserving the environment and resources, key factors for PORR include occupational health and safety and quality. As a reliable partner we have a strong track record with our technical expertise in every common tunnelling method (gripper TBM, open shield, EPB and hydro shield) as well as with cross sections from 6 to 13 metres. Service range tunnelling Our service range stretches from building traffic tunnels such as road, metro and railway tunnels, along with infrastructure facilities, right through to the supply of drinking water. District heating pipes, wastewater pipes and cable ducts along with other underground construction such as galleries, shafts, caverns or hydraulic engineering complete the range. We employ the following technologies: Conventional tunnelling (cyclical) using the New Austrian Tunnelling Method (NATM) Mechanical (continuous) tunnelling with tunnel boring machines (TBMs) with diameters of 2.5m to more than 13m Tunnelling with a hard-rock TBM (gripper machine) with subsequent inner lining of in-situ concrete Tunnelling with shield TBM with simultaneous single-layer segmental lining or double-layer with segments and in-situ concrete lining Hydro-shield tunnelling: tunnelling with a slurry-supported working face, segmental lining Earth-pressure-balance shields (EPB) with face support by balancing the earth pressure, segmental lining Multimode tunnelling with alternating operating modes (EPB/slurry-supported/open), segmental lining Mechanical tunnelling with tube extrusion technology with partial or full section methods, using a slurry-supported working face if necessary, tube diameters from 1.5m to more than 4m Your contacts for tunnelling. PORR GMBH & CO. KGAA Dr. Bernd Schockemöhle Division Manager Tunnelling +49 211 159 223-409 bernd.schockemoehle@porr.de Selected projects. GERMANY . FRANKFURT Metro section B Europa Quarter Zur Referenz GERMANY . STUTTGART Stuttgart 21 (Lot 1A and Lot 1B) Zur Referenz Your fast link to PORR. PORR GmbH & Co. KGaA Walter-Gropius-Straße 23 80807 Munich T +49 89 71001-0 info@porr.de HR-Service T +49 89 71001-0 Press-Service T +49 89 71001-213 presse@porr.de PORR AG Absberggasse 47 1100 Vienna Austria T +43 50 626-0 office@porr-group.com porr-group.com PORR machinery market The PORR machinery market offers you a wide range of used construction machinery, equipment and vehicles from the PORR Group’s equipment pool. To machinery market PORR in Social Media Home Imprint Privacy Policy © 2021 PORR GmbH & Co. KGaA