Exploration of Tunnel Alignment using Geophysical Methods to Increase Safety for Planning and Minimizing Risk |
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| Authors: | Bodo Lehmann Dirk Orlowsky Rüdiger Misiek |
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| Institution: | (1) Exploration and Geosurvey Division, DMT GmbH & Co. KG, Am Technologiepark 1, 45307 Essen, Germany |
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| Abstract: | Engineering geophysics provides valuable and continuous information for the planning and execution of tunnel construction
projects. For geotechnical purposes special high-resolution geophysical methods have been developed during the last decades.
The importance of applying geophysical methods in addition to usually used geological and geotechnical exploration techniques
is increasing. The main goal is to achieve an accurate and continuous model of the subsurface in a relative short period of
operation time. The routine application of engineering geophysical methods will increase in the coming years. Due to the high
acceptance of engineering geophysics at construction sites, much wider application of geophysical investigations is expected.
The combination of different methods—geophysics, geology, and geotechnics as well as the so-called joint interpretation techniques—will
be of essential importance. Engineering geophysics will play an important role during the three phases: geological investigation,
tunnel planning, and execution of tunnel construction. If hazards are well known in advance of a tunnel project the safety
of workers will essentially be increased and geological risks will be minimized by means of successful and interdisciplinary
cooperation. |
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