1 General Provisions 2 Terms and Symbols 2.1 Terms 2.2 Symbols 3 Ventilation Planning and Survey 3.1 Ventilation planning 3.2 Ventilation survey 3.3 Traffic volume 4 Ventilation Mode 4.1 Selection of ventilation mode 4.2 Tunnel ventilation requirements 5 Ventilation Standard 5.1 General 5.2 Design concentration of particulate matters 5.3 Design concentration of CO and NO2 5.4 Ventilation requirements 6 Required Air Volume Flow 6.1 General 6.2 Required air volume flow for particulate matters dilution 6.3 Required air volume flow for CO dilution 6.4 Required air volume flow for tunnel ventilation 7 Ventilation Calculation 7.1 General 7.2 Tunnel natural ventilation effect 7.3 Piston effect of traffic in tunnel 7.4 Tunnel ventilation resistance 7.5 Longitudinal ventilation with full jet stream 7.6 Longitudinal ventilation with Saccardo nozzle 7.7 Longitudinal ventilation with exhaust shaft 7.8 Longitudinal ventilation with supply and exhaust shafts 7.9 Longitudinal ventilation with dust collector 7.10 Full transverse and semi-transverse ventilation modes 8 Duct 8.1 General 8.2 Main duct 8.3 Connecting duct 8.4 Air supply opening and air exhaust opening 8.5 Air inlet and air outlet 8.6 Ventilation valves 9 Fan Room and Ventilation Shaft 9.1 General 9.2 Aboveground fan room 9.3 Underground fan room 9.4 Ventilation shaft 9.5 Ventilation tower 10 Smoke Prevention and Extraction in Case of Tunnel Fire 10.1 General 10.2 Smoke extraction in case of tunnel fire 10.3 Tunnel smoke ventilator 10.4 Smoke prevention of escape passage and shelter
10.5 Smoke prevention and extraction of ancillary buildings 11 Fan Selection and Layout 11.1 General 11.2 Selection and layout of jet fan 11.3 Selection, layout and air volume flow adjustment of axial fan 12 Design Principles of Ventilation Control 12.1 General 12.2 Smoke prevention and extraction control in case of tunnel fire 124 Appendix A On-way Resistance Coefficient Appendix B Pressure Loss Coefficient of U-shaped and Z-shaped Ducts Appendix C Other Pressure Loss Coefficient of Tunnels and Ducts Appendix D Common Units and Unit Conversion in Fluid Mechanics Appendix E Examples of Ventilation Calculation Wording Explanation for these Guidelines Technical Terms in Chinese and English
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