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Possibilities for the evaluation of the condition of road (Construction and reconstruction) including seismic measurements

Möglichkeiten zur Bewertung des Zustandes von Straßenbauten (Bau und Rekonstruktion) unter Einbeziehung seismischer Messungen .

  • Central point of this study is to evaluate stiffness properties of pavement, specifically the E or G- modulus determined by different testing methods. Stiffness of soil is both stress and strain dependent property and otherwise different methods usually affect the material in different ways. The Young’s modulus E0 and shear modulus G0 correspond to the very small strain level are regarded as the initial or maximal stiffness of the relevant stress-strain curves of a given material. The modulus decay curve is called the degradation curve, which also reviewed in this study. With the results of different measurement methods applied for a reclaimed mining site in Klettwitz for determining of stiffness parameter of subsoil, author have tried to find a unification between the results considering the relationship between stiffness parameter and the range of strain levels. The testing methods executed at plant S9 in Klettwitz-Südfeld are: laboratory oedometer test, static plate load test, dynamic plate load test, and seismic testing methods (spectral analysis of surface wave, SASW). Some results getting from this study are: one receives different absolute values of stiffness parameter from different testing methods. The reason is different testing methods produce different range of strain levels in soil during their execution. Conventional and non-destructive testing methods should be combined together for investigating of subsoil characteristics. This means, the soil parameters must be adjusted to the current range of strain level. Especially for settlement calculation it is recommended that different values of stiffness modulus, Es, resulted by different testing methods should be simultaneously utilized along the depth beneath loading surface. Accuracy for determining of stiffness degradation curves depends a lot on the determination of maximal stiffness parameters (E0, G0) at the range of very small strain level, and it still requires much further studies.

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Metadaten
Document Type:Master's Thesis
Author: Manh Quynh Vu
DOI (Cite-Link):https://doi.org/10.25643/bauhaus-universitaet.649Cite-Link
URN (Cite-Link):https://nbn-resolving.org/urn:nbn:de:gbv:wim2-20111215-6498Cite-Link
Language:English
Date of Publication (online):2005/06/21
Year of first Publication:2005
Release Date:2005/06/21
Publishing Institution:Bauhaus-Universität Weimar
Granting Institution:Bauhaus-Universität Weimar, Fakultät Bauingenieurwesen
Institutes:Fakultät Bauingenieurwesen / Professur Bodenmechanik
Tag:Zustand von Strassenbau; seismische Messungen
evaluation; road; seimic measurements
GND Keyword:Straßenbau; Seismik; Sraßeninstandhaltung; Straßenplanung
Dewey Decimal Classification:600 Technik, Medizin, angewandte Wissenschaften / 620 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
BKL-Classification:56 Bauwesen / 56.00 Bauwesen: Allgemeines
Licence (German):License Logo Copyright All Rights Reserved
Note:
Der Volltext-Zugang wurde im Zusammenhang mit der Klärung urheberrechtlicher Fragen mit sofortiger Wirkung gesperrt.