HIGHWAY SLOPE STABILIZATION BY A DRAINAGE TUNNEL - A PARAMETRIC STUDY

Seepage finite element analyses have been carried out to assess the effectiveness of drainage tunnel along 4 km (2.4 mi) of the Egnatia highway in Greece. The highway passes through unstable ground, where ground water controls stability. A drainage tunnel was proposed as a stabilization measure, providing large scale drainage. Parametric studies have been conducted in terms of permeability. The influence of vertical drains constructed above the tunnel was investigated. It is concluded that the tunnel is an effective means of drainage, but the time to achieve an acceptable reduction of the pore pressures varies from days to years depending on permeability.

Language

  • English

Media Info

  • Features: Figures; References;
  • Pagination: p. 109-114

Subject/Index Terms

Filing Info

  • Accession Number: 00778728
  • Record Type: Publication
  • ISBN: 9058090485
  • Report/Paper Numbers: Volume 1
  • Files: TRIS
  • Created Date: Nov 23 1999 12:00AM