CEN/TR 1295-2:2005

Structural design of buried pipelines under various conditions of loading - Part 2: Summary of nationally established methods of design

In addition to EN 1295-1, this Technical Report gives additional guidance when compared with EN 1295-1 on the application of the nationally established methods of design declared by and used in CEN member countries at the time of preparation of this document (see informative Annex A).
This Technical Report is an important source of design expertise, but it cannot include all possible special cases, in which extensions or restrictions to the basic design methods may apply.
Since in practice precise details of types of soil and installation conditions are not always available at the design stage, the choice of design assumptions is left to the judgement of the engineer. In this connection the document can only provide general indications and advice.

Statische Berechnung von erdverlegten Rohrleitungen unter verschiedenen Belastungsbedingungen - Teil 2: Zusammenstellung national eingeführter Berechnungsverfahren

Calcul de résistance mécanique des canalisations enterrées sous diverses conditions de charge - Partie 2: Résumé des méthodes nationales de dimensionnement

En complément à l'EN 1295-1 et par rapport à cette dernière, le présent Rapport technique donne des lignes directrices supplémentaires pour l'application des méthodes de calcul reconnues au plan national, déclarées et utilisées dans les États membres du CEN au moment de la préparation du présent document (voir l'Annexe A informative).
Le présent Rapport technique est une source importante d'expertise sur le calcul de la résistance mécanique, mais il ne peut inclure tous les cas spéciaux possibles, pour lesquels des extensions ou des restrictions des méthodes de calcul de base peuvent s'appliquer.
Puisque dans la pratique des détails précis sur les types de sols et sur les conditions de pose ne sont pas toujours connus au stade du projet, le choix des hypothèses du projet est laissé à l'appréciation de l'ingénieur. De ce fait, le document peut seulement donner des indications et des conseils généraux.

Projektiranje vkopanih cevovodov pri različnih pogojih obtežb – 2. del: Pregled nacionalnih metod projektiranja

General Information

• Status: Published
• Publication Date: 30-Aug-2005
• ICS: 23.040.01 - Pipeline components and pipelines in general
• Technical Committee: CEN/TC 165 - Waste water engineering
• Drafting Committee: CEN/TC 165/WG 12 - Structural design of buried pipelines
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 31-Aug-2005
• Completion Date: 31-Aug-2005
• Directive: 93/38/EEC - Procurement procedures of entities operating in the water, energy, transport and telecommunications sectors
• Mandate: M/BC/CEN/88/15 - Standardization request to CEN/CENELEC in the field of Water supply, drainage and sewerage
• Ref Project: SIST-TP CEN/TR 1295-2:2005 - Structural design of buried pipelines under various conditions of loading - Part 2: Summary of nationally established methods of design

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2005
3URMHNWLUDQMHYNRSDQLKFHYRYRGRYSULUD]OLþQLKSRJRMLKREWHåE±GHO3UHJOHG
QDFLRQDOQLKPHWRGSURMHNWLUDQMD
Structural design of buried pipelines under various conditions of loading - Part 2:
Summary of nationally established methods of design
Statische Berechnung von erdverlegten Rohrleitungen unter verschiedenen
Belastungsbedingungen - Teil 2: Zusammenstellung national eingeführter
Berechnungsverfahren
Calcul de résistance mécanique des canalisations enterrées sous diverses conditions de
charge - Partie 2: Résumé des méthodes nationales de dimensionnement
Ta slovenski standard je istoveten z: CEN/TR 1295-2:2005
ICS:
23.040.01 Deli cevovodov in cevovodi Pipeline components and
na splošno pipelines in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL REPORT
CEN/TR 1295-2
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
August 2005
ICS 23.040.01
English Version
Structural design of buried pipelines under various conditions of
loading - Part 2: Summary of nationally established methods of
design
Calcul de résistance mécanique des canalisations Statische Berechnung von erdverlegten Rohrleitungen
enterrées sous diverses conditions de charge - Partie 2: unter verschiedenen Belastungsbedingungen - Teil 2:
Résumé des méthodes nationales de dimensionnement Zusammenstellung national eingeführter
Berechnungsverfahren
This Technical Report was approved by CEN on 28 February 2005. It has been drawn up by the Technical Committee CEN/TC 165.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 1295-2:2005: E
worldwide for CEN national Members.

Contents
Foreword .4
Introduction.5
1 Scope.6
2 Normative references.6
3 Terms and definitions.6
4 Additional details about established methods .6
Annex A (informative) Summary of Methods of different countries.7
A.1 Austria.7
A.1.1 General remarks.7
A.1.2 Differences between "option 1" and ÖNORM B 5012.7
A.1.3 Principles.8
A.2 Belgium.9
A.2.1 General.9
A.2.2 Flowchart.9
A.2.3 Design, equations, tables and charts, symbols and abbreviations .9
A.3 Denmark.21
A.3.1 General.21
A.3.2 Charges.24
A.3.3 Safety.26
A.3.4 Partial safety factors.27
A.3.5 Calculations.27
A.4 France.29
A.4.1 Scope.29
A.4.2 Original features of the method .29
A.4.3 Description.29
A.4.4 Example of calculation.37
A.5 Germany.39
A.5.1 Introduction.39
A.5.2 Types of soil.39
A.5.3 Live loads.40
A.5.4 Effects of the installation on the structural calculation .44
A.5.5 Loading.44
A.5.6 Load distribution.45
A.5.7 Pressure distribution at pipe circumference .50
A.5.8 Sectional forces, stresses, strains, deformations.51
A.5.9 Dimensioning.52
A.6 Netherlands.56
A.6.1 General.56
A.6.2 Earth load.56
A.6.3 Evenly distributed surface load .57
A.6.4 Traffic loads.57
A.6.5 Heavy transport.57

A.6.6 Loads form external and internal water pressure .58
A.6.7 Thermal loading.58
A.6.8 Moments and normal forces .59
A.6.9 Calculation model for a concrete pipe .62
A.6.10 Recommended design values.69
A.7 Norway.73
A.7.1 Types of loads.73
A.7.2 Soil loads.73
A.7.3 Self weight of pipe.73
A.7.4 Weight of water.74
A.7.5 Traffic load.74
A.7.6 Load distribution and bedding reaction.74
A.7.7 Safety analysis.74
A.7.8 Structural design.74

A.8 Sweden.75
A.8.1 Design of buried plastic pipes .75
A.8.2 Calculation method for rigid pipes .83
A.9 United Kingdom.86
A.9.1 General description.86
A.9.2 Calculation procedures.86
A.9.3 Rigid pipes.87
A.9.4 Semi-rigid pipes.90
A.9.5 Flexible pipes.93

Bibliography.110

Foreword
This Technical Report (CEN/TR 1295-2:2005) has been prepared by Technical Committee CEN/TC 165
“Wastewater engineering”, the secretariat of which is held by DIN.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.
CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This Technical Report was prepared by a Joint Working Group (JWG 1) of Technical Committees TC 164, Water
supply, the secretariat of which is held by AFNOR, and TC 165, Waste water engineering, the secretariat of which
is held by DIN.
This Technical Report is intended for use in conjunction with the series of product standards covering pipes of
various materials for the water industry.
This Technical Report includes an Informative Annex A in which are included additional details about the nationally
established methods of design declared, submitted by and used in member countries, and collated by the Joint
Working Group.
Introduction
The structural design of buried pipelines constitutes a wide ranging and complex field of engineering, which has
been the subject of extensive study and research, in many countries over a period of very many years.
Whilst many common features exist between the design methods which have been developed and established in
the various member countries of CEN, there are also differences reflecting such matters as geological and climatic
variations, as well as different installation and working practices.
In view of these differences, and of
...