TY - GEN A1 - Niederleithinger, Ernst A1 - Brink, Arne A1 - McDonald, C. A1 - Meggyes, Tamás A1 - Roehl, K. E. A1 - Witt, K. J. T1 - TAILSAFE - Investigation and improvement of tailings facilities N2 - Tailings are the fine residue of the milling process in the mining industry and appear in slurry form being mixed with water during this process. Large tailings ponds are required to contain them, usually confined by man-made dams. Such tailings facilities pose considerable risk both to the environment and human lives. A major interdisciplinary research project ('TAILSAFE') supported by European Union has been initiated with the aim to increase attention towards and reduce the risk posed by tailings facilities. Methods of parameter evaluation and measurement are being developed within the project and applied for the detection, assessment and improvement of the safety state of tailings dams and ponds. One of the workpackages has his focus on non-destructive geophysical investigation methods. Geoelectrical (SIP), seismic and radar methods will be used to get information on the tailings dam structure and water content. T2 - 6th International Symposium Non-Destructive Testing in Civil Engineering (NDT-CE) CY - Berlin, Germany DA - 2003-09-16 PY - 2003 UR - http://www.ndt.net/article/ndtce03/papers/p014/p014.htm SN - 3-931381-49-8 SP - 1 EP - 6(?) PB - DGZfP CY - Berlin AN - OPUS4-2756 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Niederleithinger, Ernst T1 - Spectral Induced Polarization - a Tool for Non-Destructive Testing of Soils and Building Materials N2 - The Spectral Induced Polarization (SIP) is a newly developed non-destructive geophysical method. It is an extension of conventional electrical resistivity measurements. By measuring additional parameters a more detailed investigation of the subsurface is possible. Up to now SIP is mainly used in mineral exploration, but the number of application examples from near surface geophysics and civil engineering is increasing. Results are presented from the investigation of slag heaps and measurements on bricks. T2 - 6th International Symposium Non-Destructive Testing in Civil Engineering (NDT-CE) CY - Berlin, Germany DA - 2003-09-16 PY - 2003 UR - http://www.ndt.net/article/ndtce03/papers/v060/v060.htm SN - 3-931381-49-8 SP - 1(?) EP - 8(?) PB - DGZfP CY - Berlin AN - OPUS4-2755 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Niederleithinger, Ernst A1 - Taffe, Alexander A1 - Behrens, Matthias ED - Stahlmann, J. T1 - RUFUS - Re-Use of Foundations on Urban Sites - Ein EU-Projekt zur Wiedernutzung von Fundamenten T2 - 7. Pfahl-Symposium CY - Braunschweig, Deutschland DA - 2003-02-20 PY - 2003 SN - 3-927610-62-3 N1 - Serientitel: Mitteilung des Instituts für Grundbau und Bodenmechanik - Technische Universität Braunschweig – Series title: Mitteilung des Instituts für Grundbau und Bodenmechanik - Technische Universität Braunschweig IS - 71 SP - 1(?) EP - 2(?) CY - Braunschweig AN - OPUS4-2761 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Niederleithinger, Ernst A1 - Taffe, Alexander ED - Stahlmann, J. T1 - Horstwalde - Konzeption für einen Teststandort zur Pfahlprüfung T2 - 7. Pfahl-Symposium CY - Braunschweig, Deutschland DA - 2003-02-20 PY - 2003 SN - 3-927610-62-3 N1 - Serientitel: Mitteilung des Instituts für Grundbau und Bodenmechanik - Technische Universität Braunschweig – Series title: Mitteilung des Instituts für Grundbau und Bodenmechanik - Technische Universität Braunschweig IS - 71 SP - 1(?) EP - 6(?) CY - Braunschweig AN - OPUS4-2760 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kruschwitz, Sabine A1 - Niederleithinger, Ernst T1 - Mehrkanalige SIP - erste Erfahrungen T2 - 64. Jahrestagung der Deutschen Geophysikalischen Gesellschaft (DGG) CY - Berlin, Deutschland DA - 2004-03-08 KW - SIP KW - Geotechnik KW - Geoelektrik KW - Baustoffe KW - Feuchtigkeit KW - Porosität KW - Spülhalden PY - 2004 SP - 571 EP - 572 PB - Deutsche Geophysikalische Gesellschaft CY - Berlin AN - OPUS4-3440 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Taffe, Alexander A1 - Niederleithinger, Ernst A1 - Krause, Martin A1 - Milmann, Boris T1 - Zerstörungsfreie Untersuchungen an Fundamentplatten mit Ultraschallecho KW - Zerstörungsfreie Prüfung im Bauwesen KW - ZfPBau KW - Ultraschallecho KW - Dickenmessung KW - Fundamente KW - Baustellenscanner KW - Wiedernutzung PY - 2004 SN - 0005-9900 SN - 1437-1006 VL - 99 IS - 12 SP - 1000 EP - 1004 PB - Ernst CY - Berlin AN - OPUS4-5284 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Niederleithinger, Ernst T1 - Elektrische Widerstandsmessungen mit Spektraler Induzierter Polarisation T2 - Feuchtetag 2004 mit Workshop ONSITEFORMASONRY CY - Berlin, Germany DA - 2004-11-18 PY - 2004 AN - OPUS4-5703 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Kruschwitz, Sabine A1 - Niederleithinger, Ernst A1 - Behrens, Matthias A1 - Mittag, Kornelia T1 - Zerstörungsfreie Strukturuntersuchung von Spülhaldendämmen mittles SIP T2 - Jahrestagung Deutsche Geophysikalische Gesellschaft (DGG) CY - Graz, Österreich DA - 2005-02-21 KW - Spektrale Induzierte Polarisation KW - Spülhalden KW - Dammstabilität PY - 2005 SN - 0344-7251 SP - 113 EP - 114 PB - DGG CY - wechselnde Verlagsorte AN - OPUS4-7214 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Kruschwitz, Sabine A1 - Niederleithinger, Ernst T1 - Spektrale Induzierte Polarisation zur Charakterisierung von Baumaterial T2 - Jahrestagung Deutsche Geophysikalische Gesellschaft (DGG) CY - Graz, Österreich DA - 2005-02-21 KW - Spektrale Induzierte Polarisation KW - Baumaterial KW - Holz KW - CNM KW - Hg-Porosimetrie PY - 2005 SN - 0344-7251 SP - 296 EP - 297 PB - DGG CY - wechselnde Verlagsorte AN - OPUS4-7215 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Niederleithinger, Ernst T1 - Pfahlprüfung: Grenzbereich zwischen Bauingenieurwesen und Geophysik T2 - Jahrestagung Deutsche Geophysikalische Gesellschaft (DGG) CY - Graz, Austria DA - 2005-02-21 PY - 2005 AN - OPUS4-7177 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Niederleithinger, Ernst A1 - Taffe, Alexander A1 - Behrens, Matthias T1 - Pfahlprüfung - Grenzbereich zwischen Bauingenieurwesen und Geophysik T2 - Jahrestagung Deutsche Geophysikalische Gesellschaft (DGG) CY - Graz, Österreich DA - 2005-02-21 KW - Fundamente KW - Bohrpfähle KW - Pfahlprüfung KW - Pfahlintegritätsprüfung KW - Parallel Seismic Verfahren KW - Geophysik PY - 2005 SN - 0344-7251 SP - 287 PB - DGG CY - wechselnde Verlagsorte AN - OPUS4-7239 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Taffe, Alexander A1 - Katzenbach, R. A1 - Klingmüller, O. A1 - Niederleithinger, Ernst T1 - Untersuchungen an Fundamentalplatten und Pfahlgründungen im Hinblick einer Wiedernutzung N2 - The re-use of foundations on urban sites contributes to the Sustainable Development in construction. Investigations at potential parts to be re-used should be performed in time to influence the planning process. Non-destructive testing methods in civil engineering (NDT-CE) provide necessary information about location, dimension and condition of existing foundations. Thickness measurement of foundation slabs, imaging of their geometry is dealt with as well as localisation of voids and reinforcement beyond surface-near layers. For pile foundations this article introduces NDT-CE methods to measure the pile length or deviation of an expected length as well as to determine the pile integrity. Practical examples of typical testing problems are given and show the possibilities as well as limits of a method. This guidance enables the planning engineer to consider the use of NDT-CE methods and to assure their successful application. KW - Wiedernutzung KW - Fundamente KW - Pfahlgründungen KW - Dickenmessung KW - Pfahlintegrität KW - ZfPBau KW - Zerstörungsfreie Prüfung KW - RuFUS PY - 2005 DO - https://doi.org/10.1002/best.200590207 SN - 0005-9900 SN - 1437-1006 VL - 100 IS - 9 SP - 757 EP - 770 PB - Ernst CY - Berlin AN - OPUS4-10892 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Taffe, Alexander A1 - Krause, Martin A1 - Milmann, Boris A1 - Niederleithinger, Ernst ED - Alexander, M. T1 - Assessment of foundation slabs with US-echo in the re-use process N2 - During the re-use process of existing concrete memebers like foundations information about geometry and location of piles or strip foundation is necessary. Ultrasonic echo with a need of only one-sided access may provide this information and help the engineer to assess foundations. Cost effectiveness by the re-use of foundations gains an increasing economic role due to decreasing average economic lifetime of buildings on urban sites. Results of systematic ultrasonic echo investigations at a slab from 75 cm to 125 cm thickness with ten different reinforcement ratios are presented. The influence of the varying reinforcement ratio and thickness on the reliability of the results is shown. Available data-processing algorithms based on reconstruction calculation and imaging of results to reveal the geometry of a slab and the location of piles or strip foundations are introduced. Practical guidance for the application of ultrasonic echo and its limits are presented to ensure reliable results. T2 - International Conference on Concrete Repair, Rehabilitation and Retrofitting (ICCRRR) CY - Cape Town, South Africa DA - 2006-11-21 KW - Ultraschallecho KW - Fundamentdicke KW - Bildgebende Darstellung KW - Wiedernutzung von Fundamenten KW - SAFT KW - ZfP im Bauwesen KW - Objektortung PY - 2006 SN - 0-415-39654-9 N1 - Serientitel: Balkema proceedings and monographs in engineering, water and earth sciences – Series title: Balkema proceedings and monographs in engineering, water and earth sciences SP - 525 EP - 530 PB - Taylor & Francis CY - London AN - OPUS4-11681 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Niederleithinger, Ernst A1 - Taffe, Alexander A1 - Fechner, Th. T1 - Improved parallel seimic technique for foundation assessment T2 - 18th Annual Meeting SAGEEP, Symposium on the Application of Geophysics to Engineering and Environmental Problems, "Geophysical Solutions for Today´s Challenges" CY - Atlanta, GA, USA DA - 2005-04-03 KW - Parallel Seismik KW - Fundamente KW - Pfahlprüfung KW - Baugrund PY - 2005 SP - 1004 EP - 1011 PB - Environmental and Engineering Geophysical Society CY - Atlanta AN - OPUS4-11470 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Kruschwitz, Sabine A1 - Niederleithinger, Ernst T1 - Multi-channel Spectral Induced Polarization (SIP) Measurements on Tailings Dams T2 - Near Surface 2005 CY - Palermo, Italy DA - 2005-09-05 KW - Spectral Induced Polarization KW - Tailings Facilities KW - Dam Stability KW - SASW PY - 2005 SN - 90-73781-91-4 SP - 4 pages PB - Co Productions CY - Houten AN - OPUS4-10911 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie A1 - Niederleithinger, Ernst A1 - Wiggenhauser, Herbert T1 - A toolbox with non-destructive testing methods for the condition assessment of railway bridges N2 - The unified economic structure of the European market requires a unified transport infrastructure to ensure seamless and barrierfree transportation of passengers and goods. The European commission is funding the European Integrated Project Sustainable Bridges to comply with future traffic demands. The main objective of the project is to reliably assess and upgrade the bridge infrastructure for the required increase of axle loads and transport volume. 32 Institutes from 12 countries develop unified procedures for the assessment and improvement of the existing railway bridge stock under the guidance and review of six major European railway companies. Non destructive testing (NDT) is given a high priority. One of the work packages concentrates on the potential of advanced NDT-methods and creates a toolbox with advisable methods for the condition assessment of all types of railway bridges. Although NDT-methods are implemented in the quality assurance process in many industries, their application in the railway infrastructure is not common. Only a few countries have included selected NDT-methods into advanced condition assessment procedures for the management of their bridge stock. This paper describes also current activities to enhance pulse-phase thermography, impulse-radar and acoustic methods. The advanced methods enable infrastructure owners to verify construction plans, to assess structures, repair and strengthening quality or to identify in-service damages. Latest development is an automated scanning system for combined acoustic and electromagnetic measurements. The results are then combined through data fusion techniques to further increase their value for the bridge owners. T2 - 85th TRB Annual Meeting CY - Washington, DC, USA DA - 2006-01-22 KW - Non-Destructive Testing KW - Thermography KW - Railway Bridges KW - NDT-toolbox PY - 2006 SP - 1 EP - 12(?) PB - TRB CY - Washington, D.C. AN - OPUS4-12037 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Niederleithinger, Ernst A1 - Helmerich, Rosemarie A1 - Wiggenhauser, Herbert ED - Cruz, P. ED - Frangopol, D. T1 - Trends in bridge condition assessment using non-destructive testing methods T2 - Bridge Maintenance, Safety, Management, Life-Cycle Performance and Cost CY - Porto, Portugal DA - 2006-07-16 KW - NDT KW - Condition assessment KW - Automation of measurement KW - Data fusion PY - 2006 SN - 0-415-40315-4 N1 - Serientitel: Balkema proceedings and monographs in engineering, water and earth sciences – Series title: Balkema proceedings and monographs in engineering, water and earth sciences SP - 933 EP - 934 PB - Taylor & Francis CY - London AN - OPUS4-14037 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Niederleithinger, Ernst T1 - Systematische Evaluierung existierender und innovativer Methoden zur Schwachstellenanalyse und Strukturerkennung von Deichen - Das Projekt DEISTRUKT T2 - RIMAX-Seminar (Risikomanagement extremer Hochwasserereignisse, BMBF-Förderaktivität) auf der "acqua alta" 3. Internationale Fachmesse und Kongress für Hochwasserschutz, Klimafolgen und Katastrophenmanagement CY - Hamburg, Germany DA - 2006-09-14 PY - 2006 AN - OPUS4-13992 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Taffe, Alexander A1 - Niederleithinger, Ernst ED - Butcher, A. ED - Powell, J. ED - Skinner, H. T1 - NDT investigation methods KW - Re-use of foundations KW - NDT KW - Pile integrity testing KW - Parallel seismic KW - Ultrasonic KW - Sustainability KW - Piles KW - Foundations PY - 2006 SN - 1-86081-938-9 N1 - Serientitel: Building Research Establishment X – Series title: Building Research Establishment X IS - 414 SP - 47 EP - 55 PB - IHS BRE Press CY - Bracknell AN - OPUS4-13925 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Niederleithinger, Ernst A1 - Taffe, Alexander T1 - Early stage elastic wave velocity of concrete piles N2 - The low-strain pile integrity testing method is used for quality control of new piles as well as length and integrity check for old piles. If no other methods for calibration are available, the accuracy and reliability of the techniques depend on a good estimation of the elastic wave velocity. In practice it is assumed that piles can be tested 7 days after casting and that the velocity is almost constant in all piles of one kind in a construction project. Recent measurements at the BAM test site in Horstwalde, Germany, showed that the 7 day criterion is not generally applicable. KW - Non-destructive testing KW - Concrete piles KW - Pile integrity testing KW - Foundation PY - 2006 DO - https://doi.org/10.1016/j.cemconcomp.2006.02.013 SN - 0958-9465 SN - 1873-393X VL - 28 IS - 4 SP - 317 EP - 320 PB - Elsevier CY - Barking, Essex AN - OPUS4-14039 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Niederleithinger, Ernst A1 - Helmerich, Rosemarie A1 - Streicher, Doreen ED - Vincentsen, L. T1 - NDT Methods for Condition Assessment of Railway Bridges T2 - International Association for Bridge and Structural Engineering (IABSE) Conference on Operation, Maintenance and Rehabilitation of Large Infrastructure Projects, Bridges and Tunnels CY - Copenhagen, Denmark DA - 2006-05-15 KW - Condition assessment KW - Non-destructive testing KW - Automation KW - Method combination PY - 2006 SN - 87-91044-03-0 SP - 1(?) PB - IABSE CY - Zürich AN - OPUS4-14038 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -