CONSTRUCTION OF HYDRAULIC-FILL FOUNDATIONS FOR SUNKEN-TUBE TUNNELS

Investigations of hydraulic fills of underwater soil foundations between the bottom of the section and base of the trench were carried out when constructing the first sunken-tube vehicular tunnel in USSR. These investigations established that the stream of muck issuing from the pipeline underwater expands and its velocity decreases with distance. The rectilinear rays including an angle of about 30 degrees are the limits of expansion of the stream. The stream of muck loses its transporting capacity with distance and soil particles settle within the spread, forming a portion of the foundation under the bottom of the immersed tunnel section. Continuous contact of the foundation surface with the bottom of the section is achieved by joining one portion to another by moving the pipelines under the sections, swiveling them through an angle of 30-45 degrees.

Media Info

  • Features: References;
  • Pagination: p. 462-467
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00196470
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Aug 15 1979 12:00AM