THE BEHAVIOUR OF PLASTIC SEWER PIPES EMBEDDED IN FINE-GRAINED SOIL

HIENORAKEISTEN MALLAJIEN SOVELTUVUUS TAIPUSTEN PUTKIJOHTOJEN SUOJAMATERIAALIKSA

The results of laboratory tests are described, and theories put forward in the literature are examined in the light of deformation measurements, the earth pressures measured around the pipes and the strains measured in the pipe walls. The results support the view that the behaviour of flexible pipes in soil can be considered in terms of pipe structure (pipe structure consisting of the pipe and the soil surrounding it, in combination possibly with further supports). It is concluded that: (1) in fine-grained soils the advantage of pipe stiffness can only be gained when e-class pipes are used; (2) in fine-grained soils it is difficult to build a sufficiently homogeneous soil layer around a pipe; (3) the behaviour of a pipe structure over a long period depends, in particular, on the distribution of the earth pressure and the development of deformation, which is itself dependent on the stiffness of the pipe; (4) it is possible to embed flexible plastic pipes in most types of soil without any special protective material - in the case of fine-grained soil the pipe must be sufficiently stiff and the layers of soil around the pipe must be built up sufficiently homogeneously. /TRRL/

  • Availability:
  • Corporate Authors:

    Valtion Teknillinen Tutkimuskesjus

    Lonnrotinkatu 37
    Helsinki,   Finland 
  • Authors:
    • Rathmeyer, H
    • TAMMIRINNE, M
    • Waere, O
  • Publication Date: 1977

Language

  • Finnish

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00189192
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • ISBN: 951-38-0521-2
  • Report/Paper Numbers: Monograph
  • Files: ITRD, TRIS
  • Created Date: Mar 28 1979 12:00AM