AS/NZS 2566.1:1998

Specifies a practice for the structural design of buried flexible pipelines which rely upon side support to resist vertical loads. The practice applies to pipes with outside diameters equal to or greater than 75 mm, initial ring-bending stiffness equal to or greater than 1250 N/m/m and long-term ring-bending stiffness equal to or greater than 625 N/m/m.

RECONFIRMATION NOTICE
Technical Committee WS-028 has reviewed the content of this publication and in accordance with Standards Australia procedures for reconfirmation, it has been determined that the publication is still valid and does not require change.
Certain documents referenced in the publication may have been amended since the original date of publication. Users are advised to ensure that they are using the latest versions of such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.
Approved for reconfirmation in accordance with Standards Australia procedures for reconfirmation on 22 February 2018.
Approved for reconfirmation in New Zealand on behalf of the New Zealand Standards Approval Board on 26 June 2018.
The following are represented on Technical Committee WS-028:
Australian Chamber of Commerce and Industry
Australian Industry Group
AUSTROADS
Civil Contractors Federation
Composites Australia Inc
Concrete Pipe Association of Australasia
Consult Australia
Engineers Australia
Plastic Industry Pipe Association of New Zealand
Plastics Industry Pipe Association of Australia
Plastics New Zealand
Water Services Association of Australia

This Standard sets out a practice for the structural design of buried flexible pipelines which rely primarily upon side support to resist vertical loads without excessive deformation. The interactive pipe/embedment structure is considered only in the transverse direction. Structural performance is predicted in the long-term for pipes in trenches and embankments but not for jacked or bored lines. For the purposes of this Standard, the long-term design basis is 50 years, to take account of creep and other time-dependent effects. The equations used in this Standard apply to pipes with outside diameters equal to or greater than 75 mm, initial ring-bending stiffness equal to or greater than 1250 N/m/m and long-term ring-bending stiffness equal to or greater than 625 N/m/m.This Standard provides methods and data for calculating the response of a pipe to loadings from -(a) soil;(b) superimpositions on the soil; and(c) both positive and negative internal pressures.

First published in Australia as AS CA68-1972.
Revised and redesignated AS 2566-1982.
Jointly revised and redesignated AS/NZS 2566.1:1998.
Reconfirmed 2018. Originated in Australia as AS CA68-1972. Final Australian edition AS 2566-1982. Jointly revised and redesignated AS/NZS 2566.1:1998. Reissued incorporating Amendment No. 1 (August 2017).