ESTIMATING SETTLEMENT OF SAND CAUSED BY CONSTRUCTION VIBRATION

Vibrations generated by construction and maintenance of buildings and roads, and normal traffic activity affect nearby structures. Many studies have shown that in most cases the levels of vibration are too low to produce direct structural damage based on vibration limits in existing codes. The recommended vibration criteria limits in current practice rarely consider settlement of foundation soils due to repetitive vibrations, particularly the cumulative effects of long-term repeated exposure. Various parameters play an important role in the evaluation of vibrational densification of granular soils. They are vibration characteristics, source of vibration, distance to that source, soil parameters, and state of stresses in soil layers vulnerable to vibration. The authors of this paper describe a method to predict in-situ settlement of sands caused by pile driving or vehicular traffic with a laboratory developed polynomial model. Extrapolation from laboratory to in-situ conditions are derived. Attenuation characteristics of soils are considered. Several case histories demonstrate the practical applications of the proposed method.

Language

  • English

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: p. 920-928
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00730025
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 30 1997 12:00AM