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20/30397008 DC

BS EN 12889. Trenchless construction and testing of drains and sewers

CURRENCY
LANGUAGE
English
Standard number:20/30397008 DC
Pages:53
Released:2020-05-21
Status:Draft for Comment
DESCRIPTION
This standard 20/30397008 DC BS EN 12889. Trenchless construction and testing of drains and sewers is classified in these ICS categories:
  • 93.030 External sewage systems
  • 23.040.05 Pipelines and its parts for external sewage systems

This document is applicable to the trenchless construction, trenchless replacement techniques and testing of new drains and new sewers in the ground usually operating as gravity or pressure pipelines, formed using prefabricated pipes and their joints.

Renovation techniques for existing pressure and non-pressure systems are not covered by this document.

Methods of trenchless construction include:

  • manned and unmanned techniques;

  • steerable and non-steerable techniques.

Mining or tunnelling (e.g. in situ construction or the use of prefabricated segments) are not covered by this document although some parts may apply to these methods.

Requirements for associated pipeline installation work other than trenchless construction, e.g. for manholes and inspection chambers, are not covered by this document and are specified in EN 1610. This also applies to pipes that are subsequently installed within entry and exit shafts/pits.


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