THE STABILITY OF A SHALLOW CIRCULAR TUNNEL IN DENSE SAND DURING SURFACE EXCAVATION OR FILLING

A brief report is presented of results obtained from model tests to investigate the consequences of excavation or filling above a tunnel in dry dense sand. In two tests, sand was excavated from the surface by suction in increments of 5 mm until collapse occurred, and in a third test, sand was poured on the surface until the depth of cover had been increased by 45 mm; the tunnel pressure was then reduced until the tunnel collapsed. The results of the tests are briefly discussed. /TRRL/

Media Info

  • Features: Figures; References;
  • Pagination: p. 591-592
  • Serial:
    • GEOTECHNIQUE
    • Volume: 25
    • Issue Number: 3
    • Publisher: Thomas Telford Limited
    • ISSN: 0016-8505

Subject/Index Terms

Filing Info

  • Accession Number: 00132264
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Jul 13 1976 12:00AM