EN 752-2017 en Drain and sewer systems outside buildings - Sewer system management《室外建筑物的排水和污水系统-下水道系统管理》.pdf

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1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Drain and sewer systems outside buildings - Sewer system managementBS EN 752:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 752 April 2017 ICS 23.040.05; 93.030 Supersedes EN 752:2008English Version Drain and

2、sewer systems outside buildings - Sewer system management Rseaux dvacuation et dassainissement lextrieur des btiments - Gestion du rseau dassainissement Entwsserungssysteme auerhalb von Gebuden - Kanalmanagement This European Standard was approved by CEN on 27 February 2017. CEN members are bound to

3、 comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CE

4、NELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has t

5、he same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem

6、bourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-100

7、0 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 752:2017 ENational forewordThis British Standard is the UK implementation of EN 752:2017. It supersedes BS EN 752:2008, which is withdrawn.The UK committee draws users

8、 attention to National Annex NA, which provides further guidance to assist users in the application of EN 752:2017 in the UK.The UK participation in its preparation was entrusted to Technical Committee B/505/22.A list of organizations represented on this committee can be obtained on request to its s

9、ecretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 86864 1ICS 23.040.05; 93.030Compliance with a British Stan

10、dard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2018.Amendments/corrigenda issued since publicationDate Text affected BRITISH STANDARDBS EN 752:2017EUROPEAN STANDARD NORME EUROPENNE

11、 EUROPISCHE NORM EN 752 April 2017 ICS 23.040.05; 93.030 Supersedes EN 752:2008English Version Drain and sewer systems outside buildings - Sewer system management Rseaux dvacuation et dassainissement lextrieur des btiments - Gestion du rseau dassainissement Entwsserungssysteme auerhalb von Gebuden -

12、 Kanalmanagement This European Standard was approved by CEN on 27 February 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and b

13、ibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the res

14、ponsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav R

15、epublic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROP

16、EN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 752:2017 EBS EN 752:2017EN 752:2017 (E) 2 Contents Page Europe

17、an foreword . 6 Introduction 8 1 Scope . 10 2 Normative references . 10 3 Terms and definitions 11 4 Objectives 14 4.1 General . 14 4.2 Public health and safety . 15 4.3 Occupational health and safety . 15 4.4 Environmental protection 15 4.5 Sustainable development 16 5 Requirements 16 5.1 Functiona

18、l requirements. 16 5.1.1 Introduction . 16 5.1.2 Protection from sewer flooding 18 5.1.3 Maintainability 18 5.1.4 Protection of surface receiving water bodies 18 5.1.5 Protection of groundwater . 19 5.1.6 Prevention of odours and toxic, explosive and corrosive gases . 19 5.1.7 Prevention of noise an

19、d vibration . 19 5.1.8 Structural integrity and design working life 19 5.1.9 Watertightness 19 5.1.10 Sustainable use of products and materials . 19 5.1.11 Sustainable use of energy 19 5.1.12 Maintaining the flow . 19 5.1.13 Not endangering adjacent structures and utility services 19 5.1.14 Inputs q

20、uality. 19 5.2 Determination of performance requirements for the drain and sewer system . 20 5.2.1 Introduction . 20 5.2.2 Environmental performance requirements . 22 5.2.3 Hydraulic performance requirements . 23 5.2.4 Structural requirements 24 5.2.5 Operational requirements 24 5.3 Design criteria

21、. 24 5.3.1 Introduction . 24 5.3.2 Hydraulic design criteria . 25 5.3.3 Environmental design criteria 27 5.3.4 Structural design criteria 28 5.3.5 Operational criteria. 29 6 Integrated sewer system management 29 6.1 Introduction . 29 6.2 Investigation 31 6.2.1 Introduction . 31 6.2.2 Purpose of inve

22、stigation 33 BS EN 752:2017EN 752:2017 (E) 3 6.2.3 Review of performance information . 33 6.2.4 Determine the scope of the investigation 33 6.2.5 Review existing information 33 6.2.6 Inventory update 33 6.2.7 Hydraulic investigation 34 6.2.8 Environmental investigation 34 6.2.9 Structural investigat

23、ion . 34 6.2.10 Operational investigation 34 6.3 Assessment 35 6.3.1 Introduction 35 6.3.2 Assessment of the hydraulic performance 35 6.3.3 Assessment of environmental impact . 36 6.3.4 Assess structural condition . 36 6.3.5 Assess operational performance 36 6.3.6 Compare with performance requiremen

24、ts . 36 6.3.7 Identify unacceptable impacts . 36 6.3.8 Identify causes of performance deficiencies 36 6.4 Planning . 37 6.4.1 Introduction 37 6.4.2 Develop integrated solutions . 37 6.4.3 Assess solutions 38 6.4.4 Prepare action plans 39 6.5 Implementation . 43 6.5.1 Introduction 43 6.5.2 Developmen

25、t of work programme . 44 6.5.3 Development of work specification . 45 6.5.4 Carrying out work. 45 6.5.5 Measuring conformity . 45 6.5.6 Review performance requirements and update plan . 45 7 Health and safety 45 8 Design . 47 8.1 General . 47 8.2 Types of system . 48 8.3 Physical layout . 49 8.3.1 P

26、reliminary investigations 49 8.3.2 Layout and profile 49 8.4 Hydraulic design . 50 8.4.1 General . 50 8.4.2 Foul drains and sewers . 50 8.4.3 Surface water drain and sewer systems . 50 8.4.4 Combined drain and sewer systems 51 8.5 Environmental considerations 52 8.5.1 General . 52 8.5.2 Protection o

27、f surface receiving water bodies . 53 8.5.3 Protection of groundwater 53 8.5.4 Prevention of septicity 53 8.5.5 Combined sewer overflows and surface water treatment . 54 8.5.6 Surface water outfalls . 55 8.5.7 Emergency overflows 55 8.6 Structural design . 55 8.6.1 Introduction 55 8.6.2 Structural d

28、esign of pipelines 56 BS EN 752:2017EN 752:2017 (E) 4 8.6.3 Structural design of other components 56 8.6.4 Materials selection. 56 8.7 Operational considerations 57 8.7.1 General . 57 8.7.2 Control of inputs . 57 8.7.3 Self-cleansing conditions . 57 8.7.4 Access to drains and sewers . 58 9 Construct

29、ion . 58 9.1 General . 58 9.2 Pipelines 58 9.3 Ancillaries . 58 9.4 Testing 59 10 Operation and maintenance . 59 10.1 Introduction . 59 10.2 Monitoring 60 10.3 Data requirements . 61 10.4 Investigation and analysis of operational problems . 61 10.5 Dealing with major incidents . 62 10.6 Techniques f

30、or operation and maintenance of components 62 11 Qualifications and training . 63 12 Sources of additional information . 63 Annex A (informative) Sources of additional information . 64 A.1 National Standards Bodies 64 A.2 Austria 64 A.2.1 Regulatory Bodies 64 A.2.2 Other organizations 64 A.3 Denmark

31、 64 A.3.1 Regulatory Bodies 64 A.3.2 Other organizations 65 A.4 Finland . 66 A.4.1 Regulatory Bodies 66 A.4.2 Other organizations 66 A.5 France . 66 A.5.1 Regulatory Bodies 66 A.5.2 Other organizations 67 A.6 Germany 67 A.6.1 Regulatory Bodies 67 A.6.2 Other organizations 68 A.7 Ireland 68 A.7.1 Reg

32、ulatory Bodies 68 A.8 Italy 68 A.8.1 Regulatory Bodies 68 A.8.2 Other organizations 68 A.9 The Netherlands . 69 A.9.1 Regulatory Bodies 69 A.9.2 Other organizations 69 A.10 Norway . 70 A.10.1 Regulatory Bodies 70 A.10.2 Other organizations 70 A.11 Portugal . 70 A.11.1 Regulatory Bodies 70 BS EN 752:

33、2017EN 752:2017 (E) 5 A.11.2 Other organizations . 70 A.12 Sweden 71 A.12.1 Regulatory Bodies 71 A.12.2 Other organizations . 71 A.13 Switzerland . 71 A.13.1 Regulatory Bodies 71 A.13.2 Other organizations . 72 A.14 United Kingdom 72 A.14.1 Regulatory Bodies 72 A.14.2 Other organizations . 74 Annex

34、B (informative) Rehabilitation approaches 75 Annex C (informative) Operation and maintenance techniques 77 C.1 Pipelines 77 C.1.1 General . 77 C.1.2 Functional problems . 77 C.1.3 Structural problems. 77 C.2 Manholes and inspection chambers 78 C.3 Combined sewer overflows . 78 C.4 Detention tanks .

35、79 C.5 Separators, settling chambers and gullies . 79 C.6 Pumping installations . 79 C.7 Inverted siphons . 79 C.8 Pest control . 80 C.9 Making connections to existing drains and sewers 80 C.10 Control of disused drains and sewers . 80 C.11 Control of building over or adjacent to sewers 80 Annex D (

36、normative) Physical layout of the system . 82 D.1 Preliminary investigations 82 D.1.1 General . 82 D.1.2 Topography . 82 D.1.3 Geotechnical survey . 82 D.1.4 Groundwater 83 D.1.5 Existing drainage services . 83 D.1.6 Other existing utility services 83 D.2 Layout and profile 83 D.2.1 Introduction 83

37、D.2.2 Layout . 83 D.2.3 Accessibility 84 D.2.4 Depth . 85 D.2.5 Need for pumping . 85 D.2.6 Pumping installations . 86 D.2.7 Drains and sewers near water abstraction areas . 86 D.3 Access to drains and sewers . 86 Bibliography . 88 BS EN 752:2017EN 752:2017 (E) 6 European foreword This document (EN

38、752:2017) has been prepared by Technical Committee CEN/TC 165 “Waste water engineering”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2017, and

39、conflicting national standards shall be withdrawn at the latest by October 2017. 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

40、document supersedes EN 752:2008. The principal changes in this revision are as follows: a) the terminology has been aligned with EN 16323:2014; b) all the text relating to the determination of performance requirements and design criteria has been moved to Clause 5 as these are essentially part of th

41、is policy activity and not the design process; c) Clause 5 has been updated to include references to show the links to the EU Water Framework Directive (2000/60/EC) together with its daughter directives and the EU Floods Directive (2007/60/EC); d) Clause 6 has been updated to align with the latest r

42、evision of EN 13508-1 and some text that is duplicated in EN 13508-1 has been deleted; e) Clause 6 has been updated to align with EN 14654-2; f) contingency and emergency planning has been moved from the former Annex C to Clause 6 as it is part of the integrated sewer system planning process; g) som

43、e additional text from the former Annex D has been added to Clause 7, this has allowed the former Annex D to be deleted as it largely duplicated Clause 7; h) additional requirements have been added to Clause 8 on resilience of drain and sewer systems; i) all physical design requirements in the forme

44、r Clause 9 have been moved to a new Annex D; j) all the hydraulic design requirements in the former Clause 9 have been moved to prEN 16933-2 to provide a more coherent narrative; k) former Clause 11 (now Clause 10) has been updated to include requirements on dealing with major incidents; l) the text

45、 of the former Clause 12 has been integrated into 6.5.5, 10.4 (now 9.4) or 11.2 (now 10.2) as appropriate; m) the text from the former Annex A has been incorporated either in Clause 5 or Clause 7; n) a new Annex B on rehabilitation approaches has been added; BS EN 752:2017EN 752:2017 (E) 7 o) the te

46、xt from the former Annex C has been incorporated into Clause 6 (for planning activities), Clause 11 or the new Annex C; p) the former Annex F has been deleted as this is superseded by the prEN 16932 series. According to the CEN-CENELEC Internal Regulations, the national standards organizations of th

47、e following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherl

48、ands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 752:2017EN 752:2017 (E) 8 Introduction Drain and sewer systems are part of the overall wastewater system that provides a service to the community. This can be briefly

49、 described as: removal of wastewater from premises for public health and hygienic reasons; prevention of flooding in urbanized areas; protection of the environment. The overall wastewater system has four successive functions: collection; transport; treatment; discharge. Wastewater can, if necessary after treatment, be discharged to the environment or reused. Collection and transport of wastewater is provided by drain and sewer systems. Drain and sewer systems were installed because there was a need to remove the polluted water to