Reduction in ground vibrations by using shaped landscapes

Summary, in English

Reduction in traffic-induced ground vibrations by the use of shaped landscapes is investigated here by shaping the landscape surrounding a high-tech facility, using the landscape thus produced as a wave obstacle. The effects of the geometric parameters of a shaped landscape were examined in parametric studies. An architectural landscape design was also investigated in terms of its effectiveness in reducing traffic-induced ground vibrations. Finite element models, analysed in the frequency domain, were employed. The models involve a layer of soil and the underlying bedrock. It was found that anywhere

from an appreciable reduction to an appreciable amplification of the vibrations produced can occur,depending upon the geometric parameters of the shaped landscape involved. The most effective shape was found for a topography that acted as a waveguide that reduced the level of vibration by approximately 35%.

• Författare: Peter Persson; Kent Persson; Göran Sandberg
• Avdelning/ar: Byggnadsmekanik; eSSENCE: The e-Science Collaboration
• Publiceringsår: 2014
• Språk: Engelska
• Sidor: 31-43
• Publikation/Tidskrift/Serie: Soil Dynamics and Earthquake Engineering
• Volym: 60
• Issue: May
• Länkar: http://dx.doi.org/10.1016/j.soildyn.2014.01.009
• Dokumenttyp: Artikel i tidskrift
• Förlag: Elsevier
• Ämne: Mechanical Engineering
• Nyckelord: Vibration reduction; Finite element method; Wavepropagation; Shaped landscape; Traffic-induced vibrations; Soil dynamics; Viscous absorbing boundaries; Ground vibration; Irregular topography
• Status: Published
• ISBN/ISSN/Övrigt: ISSN: 0267-7261