Dr. Spang

Dr. Spang Ingenieurgesellschaft für Bauwesen, Geologie und Umwelttechnik mbH is a SME engineering office with branches in Witten (North Rhine-Westphalia), Esslingen/Neckar (Baden-Württemberg), Freiberg (Saxony), Naumburg (Saxony-Anhalt) and Nuremberg (Bavaria). We are operating as a consultant throughout Germany, Europe and worldwide. One of the key aspects of our business activities is investigation, planning and consulting services for tunneling and tunnel renovation.

Our work starts with a soundly-based recommendation for the scope of investigations and extends right through to professional...

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Münster Tunnel Engineering Colloquium 2023

Prof. Dr. Dietmar Mähner from the Institute for Underground Construction (IuB) at the Department of Civil Engineering had organized the event together with his team. The program included 11 technical...

Issue 04/2011 Planning Aid

Tunnel Engineering 2011

Untertiteltext Englisch

Compendium of Tunnel Technology, Planning Aid for Tunnel Construction. Publisher: Deutsche Gesellschaft für Geo­technik (DGGT), Essen. 35th year of publication; 454 pages, DIN A6, with 214...

Issue 07/2013 TBM | International

A Tradition of Innovation: The Next Push for Machine Tunneling

Introduction As a relatively mature industry, the world of machine tunneling is more conservative than it once was. While there is a place for standardized machinery and design elements on many...

Issue 06/2013 Book Review

The Katzenberg Tunnel

Upgraded and new Karlsruhe-Basle Route, Issued by: DB ProjektBau GmbHm 2012, 120 pp. (210x297 mm) with 110 Ill. /Tab. and 20 Sources, ISBN 978-3-7771-0450-8, bound € 38.-, DVV Media Group GmbH,...

Issue 04/2021 tunnel Series: Interaction Modeling in Mechanized Tunnelling, Part 4

Deformation-Tolerant Tunnel Linings in Swelling Soils

1 Hydro-Mechanical Processes During Mechanized Tunnelling in Soil With High Swelling Potential The stress redistribution, dilations and deformations in clay rocks as a consequence of tunnel...