BSI 15/30302482 DC:2015 Edition
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BS EN 752. Drain and sewer systems outside buildings. Sewer system management
| Published By | Publication Date | Number of Pages |
| BSI | 2015 | 93 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | Contents Page |
| 9 | Foreword |
| 10 | Introduction |
| 11 | Figure 1 — Pyramid diagram |
| 12 | 1 Scope 2 Normative references |
| 13 | 3 Terms and definitions |
| 15 | Figure 2 — Terminology for flows derived from rain water |
| 16 | 4 Objectives 4.1 General 4.2 Public health and safety |
| 17 | 4.3 Occupational health and safety |
| 18 | Figure 3 — Drain and sewer systems in the river basin |
| 19 | 4.4 Environmental protection 4.5 Sustainable development 5 Requirements 5.1 Functional requirements 5.1.1 Introduction |
| 20 | Table 1 — Relationship between objectives and functional requirements 5.1.2 Protection from sewer flooding |
| 21 | 5.1.3 Maintainability 5.1.4 Protection of surface receiving water bodies 5.1.5 Protection of groundwater 5.1.6 Prevention of odours and toxic, explosive and corrosive gases |
| 22 | 5.1.7 Prevention of noise and vibration 5.1.8 Sustainable use of products and materials 5.1.9 Sustainable use of energy 5.1.10 Structural integrity and design working life 5.1.11 Maintaining the flow 5.1.12 Watertightness 5.1.13 Not endangering adjacent structures and utility services 5.1.14 Inputs quality 5.2 Determination of performance requirements for the drain and sewer system 5.2.1 Introduction |
| 23 | 5.2.2 Environmental |
| 24 | 5.2.3 Hydraulic |
| 25 | Figure 4 — Process for determining performance requirements 5.3 Design criteria 5.3.1 Introduction |
| 26 | 5.3.2 Hydraulic design criteria 5.3.2.1 Introduction |
| 27 | 5.3.2.2 Full pipe design criteria Table 2 — Examples of design rainfall frequencies for full pipe flow 5.3.2.3 Sewer flooding design criteria |
| 28 | Table 3 — Examples of design sewer flooding criteria for standing floodwater 5.3.2.4 Effect on downstream water bodies |
| 29 | 5.3.3 Environmental design criteria 5.3.4 Structural design criteria 5.3.5 Operational criteria |
| 30 | 6 Integrated sewer system management 6.1 Introduction |
| 31 | Figure 5 — Integrated sewer system management process |
| 32 | Figure 6 — Increasing degree of detail in integrated sewer system planning 6.2 Investigation 6.2.1 Introduction |
| 33 | Figure 7 — Process for investigation 6.2.2 Purpose of investigation |
| 34 | 6.2.3 Review of performance information 6.2.4 Determine the scope of the investigation 6.2.5 Review existing information 6.2.6 Inventory update 6.2.7 Hydraulic investigation |
| 35 | 6.2.8 Environmental investigation 6.2.9 Structural investigation 6.2.10 Operational Investigation |
| 36 | 6.3 Assessment 6.3.1 Introduction Figure 8 — Process for assessment 6.3.2 Assessment of the hydraulic performance 6.3.3 Assessment of environmental impact |
| 37 | 6.3.4 Assess structural condition 6.3.5 Assess operational performance 6.3.6 Compare with performance requirements 6.3.7 Identify unacceptable impacts 6.3.8 Identify causes of performance deficiencies 6.4 Planning 6.4.1 Introduction |
| 38 | 6.4.2 Develop integrated solutions Figure 9 — Process for developing the plan |
| 39 | Table 4 — Solution types and groups for rehabilitation 6.4.3 Assess solutions |
| 40 | 6.4.4 Prepare action plans 6.4.4.1 Introduction 6.4.4.2 New development plan |
| 41 | 6.4.4.3 Operations and maintenance plan |
| 42 | 6.4.4.4 Rehabilitation plan Table 5 — Scope of rehabilitation |
| 43 | 6.4.4.5 Contingency and emergency plan |
| 44 | 6.5 Implementation 6.5.1 Introduction |
| 45 | Figure 10 — Process for implementation |
| 46 | 6.5.2 Development of work programme 6.5.3 Development of work specification 6.5.4 Carrying out work 6.5.5 Measuring conformity |
| 47 | 6.5.6 Review performance requirements and update plan 7 Health and safety principles |
| 48 | 8 Design principles 8.1 General |
| 49 | 8.2 Types of system |
| 50 | 8.3 Physical layout 8.3.1 Preliminary investigations 8.3.2 Layout and profile |
| 51 | 8.4 Hydraulic design 8.4.1 General 8.4.2 Foul drains and sewers |
| 52 | 8.4.3 Surface water drains and sewers 8.4.3.1 General 8.4.3.2 Surface water inlets 8.4.3.3 Surface water drains and sewers |
| 53 | 8.4.4 Combined drains and sewers 8.5 Environmental considerations 8.5.1 General |
| 54 | 8.5.2 Protection of surface receiving water bodies 8.5.3 Protection of groundwater |
| 55 | 8.5.4 Prevention of septicity 8.5.5 Combined sewer overflows and surface water treatment |
| 56 | 8.5.6 Surface water outfalls 8.5.7 Emergency overflows 8.6 Structural design 8.6.1 Introduction |
| 57 | 8.6.2 Structural design of pipelines 8.6.3 Structural design of other components |
| 58 | 8.6.4 Materials selection 8.7 Operational considerations 8.7.1 General 8.7.2 Separators |
| 59 | 8.7.3 Self-cleansing conditions 8.7.4 Access to drains and sewers 9 Construction principles 9.1 General 9.2 Pipelines |
| 60 | 9.3 Ancillaries 9.4 Testing |
| 61 | 10 Principles of operation and maintenance 10.1 Introduction |
| 62 | 10.2 Monitoring 10.3 Data requirements |
| 63 | 10.4 Investigation and analysis of operational problems |
| 64 | 10.5 Dealing with major incidents 10.6 Techniques for operation and maintenance of components |
| 65 | 11 Qualifications and training 12 Sources of additional information |
| 66 | Annex A (informative) Sources of additional information A.1 National Standards Bodies A.2 Austria A.2.1 Regulatory Bodies A.2.2 Other organisations A.3 Denmark A.3.1 Regulatory Bodies |
| 67 | A.3.2 Other organisations |
| 68 | A.4 France A.4.1 Regulatory Bodies A.4.2 Other organisations |
| 69 | A.5 Germany A.5.1 Regulatory Bodies A.5.2 Other organisations A.6 Ireland A.6.1 Regulatory Bodies A.7 Italy A.7.1 Regulatory Bodies |
| 70 | A.7.2 Other organisations A.8 The Netherlands A.8.1 Regulatory Bodies A.8.2 Other organisations |
| 71 | A.9 Norway A.9.1 Regulatory Bodies A.9.2 Other organisations A.10 Portugal A.10.1 Regulatory Bodies |
| 72 | A.10.2 Other organisations A.11 Sweden A.11.1 Regulatory Bodies A.11.2 Other organisations A.12 Switzerland A.12.1 Regulatory Bodies |
| 73 | A.12.2 Other organisations A.13 United Kingdom A.13.1 Regulatory Bodies A.13.1.1 General A.13.1.2 England |
| 74 | A.13.1.3 Wales A.13.1.4 Scotland |
| 75 | A.13.1.5 Northern Ireland A.13.2 Other organisations |
| 77 | Annex B (informative) Rehabilitation approaches |
| 78 | Table B.1 —Advantages and disadvantages of different rehabilitation approaches |
| 79 | Annex C (normative) Health and safety C.1 Safe systems of work C.2 Training and supervision C.3 Hazardous atmospheres C.3.1 Oxygen deficient and toxic atmospheres C.3.2 Potentially explosive atmospheres |
| 80 | C.4 Traffic control C.5 Protective equipment and welfare facilities C.6 Emergency procedures C.7 Temporary works |
| 81 | C.8 Excavation work C.9 Hazardous materials C.10 Vaccinations C.11 EU Directives |
| 82 | Annex D (normative) Physical layout of the system D.1 Preliminary investigations D.1.1 General D.1.2 Topography D.1.3 Geotechnical survey |
| 83 | D.1.4 Groundwater D.1.5 Existing drainage services D.1.6 Other existing utility services D.2 Layout and profile D.2.1 Introduction D.2.2 Layout |
| 84 | D.2.3 Accessibility D.2.3.1 General D.2.3.2 Location of manholes and inspection chambers |
| 85 | D.2.4 Depth D.2.5 Need for pumping |
| 86 | D.2.6 Pumping installations D.2.7 Drains and sewers near water abstraction areas |
| 87 | D.3 Access to drains and sewers |
| 88 | Annex E (informative) Operation and maintenance techniques E.1 Pipelines E.1.1 General E.1.2 Functional problems E.1.3 Structural problems |
| 89 | E.2 Manholes and inspection chambers E.3 Combined sewer overflows |
| 90 | E.4 Detention tanks E.5 Separators, settling chambers and gullies E.6 Pumping installations |
| 91 | E.7 Inverted siphons E.8 Pest control E.9 Making connections to existing drains and sewers |
| 92 | E.10 Control of disused drains and sewers E.11 Control of building over or adjacent to sewers |
| 93 | Bibliography |
