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Engineering Geology Engineering Geology is an applied earth science and a branch of the applied geology which requires not only multidisciplinary knowledge within the natural sciences (geology, chemistry, physics, mathematics), but still the engineering sciences. The common aims of all special subjects contributing to engineering geology are the investigation, the use, the protection and the remediation of the upper parts of the earth's crust. Regarding the worldwide rising importance of renewable energy resources, Engineering Geology as the sciences which deals direct with the use of geothermal energy is one of the future's most important applied geosciences. A highly qualified geothermal lab and experimental hall is planned and will be realized starting in 2007 with first equipment. Engineering Geology seizes the behaviour of rocks and rock masses according to the genetic material properties and their earth-history development. It quantifies the mechanical, physical and hydro mechanical characteristics and the behaviour of soils and rocks in detail and in the assembly. Important corresponding special subjects are the soil and rock mechanics, civil services, foundation engineering, tunnel and cavity construction, drilling technology, measurement engineering and applied subjects of hydrology and hydrogeology, petrology and geochemistry. Engineering geology has thus strong relations with the geotechnical engineering. It translates the results and knowledge of the geosciences into the engineering requirements. Thus, Engineering Geology contributes to the fact that buildings of all kinds can be build and heated surely and economically. For this purpose the building ground and other underground conditions for engineering structures, such as geothermal power plants, traffic routes e.g. roads, bridges, tunnels as well as other infrastructure such as caverns, dams, pipelines as well as buildings such as high rise buildings, halls, wind power stations as well as water-structural plants such as water gates, dams, dykes, are investigated. Staff Members Head Research Associates Ph.-D. Students Technical Personnel Prof. Dr. Ingo Sass Dipl.-Ing. Ulrich Burbaum Dr.-Ing. Thomas Nix Dipl.-Ing. Marek Naser Dipl.-Geol. Ulf Gwildis Gabriela Schubert Jürgen Krumm Dipl.-Ing. Arne Buß Rainer Seehaus Secretary Kirsten Herrmann Monika Schweikhardt - 118 -
Diploma Students Guest Scientists and Lecturers Research Projects Dipl.-Ing. Anne Minhans Sebastian Homuth Claudia Mack Dipl.-Ing. Matthias Keil Dr. Burkhard Sanner, European Geothermal Energy Council Dr. Sven Rumohr, Hessian Agency for Environment and Geology Interaction of Adhesive Soils, e.g. Clays and Steel Construction for Drilling Tools e.g. Tunnel Boring Machines. The adhesive behaviour of cohesive soils e.g. clays may cause an immense decrease of the advance rate of tunnel boring machines or of a drilling process. The chemical and physical properties of soils which causes adhesion are in research to understand the processes of the jamming of boring tools. An adhesion measuring device was developed: Environmental and Geotechnical Behaviour of Polymeric Organic Additives for Drilling Fluids for Tunnel Boring Machines To reduce or to eliminate the jamming effects of adhesive soils, a polymeric organic additive must be applicated to boring fluids. The additive has to be chosen according to geotechnical criteria, which is affected by geological, hydrogeological and boring aspects. After use, this boring fluid, mixed with soil, has to be deposited. This is actually an environmental challenge due to the additive, so that the research in this filed should bring up a clear understanding of the elution process. Investigation on in situ Degradation of Urban Organic Lake Deposits using Biodegradable Polymers Organic lake deposits reduce the capacity of water storage reservoirs. To decrease the capacity reducing volume of organic lake deposits, a polymer can be added to the lake water. The biochemical effects are not well known yet. Therefore a research project is in process using a lake in the city of Darmstadt. The research content a broad field and laboratory test program on the lake deposits as well as the monitoring of the volume of the lake deposits. Investigation of River Dikes with Ground Penetrating Radar (GPR) Flood waters cause financial, material and personal damages. Dikes are the most important instruments of the flood protection. In Hesse, the first dikes were constructed in the 15 th century. Since these times the dikes were extended, elevated, repaired and renovated. Therefore, the dikes are not composed of a homogeneous material but of various areas with different substantial and geotechnical properties. To guarantee the stability of the dikes and to design the reconstruction measures, complete information about the condition and the configuration of the dikes are necessary. Common practices in dike investigations are soundings and small drillings. These methods are only providing punctual information on the dike structure and are invasive. A single gap in the information on the dike structure already means to take a risk of a dike failure. Geophysical Investigations such as GPR, geoelectric and seismic measures are providing two-dimensional continuous data. Among these methods GPR affords the highest resolution and a fast investigation. - 119 -
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ANNUAL REPORT 2 0 0 6 FACULTY OF MA
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Annual Report 2006 Faculty 11 Mater
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Preface The year 2006 of the Depart
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difference of numerical and analyti
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Institute of Materials Science Phys
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Research Projects Bulk Amorphous Al
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el Dsoki, C.; Landersheim, V. ; Kau
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Das, J.; Kim, K. B.; Xu, W.; Wei, B
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Staff Members Head Prof. Dr. Jürge
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Zhou L.; Rixecker G.; Aldinger F.;
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concerned with the synthesis and ch
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Publications Fleissner, A.; Schmid,
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• Surface analysis The UHV-surfac
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T. Mayer, U. Weiler, E. Mankel and
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Thin films The Thin Film division w
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Berky, W.; Gottschalk, S.; Elliman,
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Guest Scientists Research Projects
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Hesse, S.; Zimmermann, J.; von Segg
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Structure Research The research in
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Research Projects Functional Advanc
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Dincer, I.; Elerman, Y.; Elmali, A;
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hexakis(imidazole)nickel(II)bis(for
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Chemical Analytics The chemical ana
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Collaborations The above mentioned
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Hoffmann, P.; Non-Invasive Identifi
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Ferroelectrics For this class of ma
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Materials Modelling The research ac
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Materials for Renewable Energies In
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Joint Research Laboratory Nanomater
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Collaborative Research Center (SFB)
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B7 P.I.: Prof. H. v. Seggern / Dr.
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The glass transition temperature (T
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transition allows to investigate at
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Relative density 1.00 0.95 0.90 0.8
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