EN 12336:2005+A1:2008

Foreword
Introduction
1 Scope
  1.1 Description of the machines
  1.2 Hazards
  1.3 Validity
2 Normative references
3 Terms, definitions symbols and abbreviated terms
4 List of significant hazards
  4.1 Mechanical hazards
  4.2 Electrical hazards
  4.3 Thermal hazards
  4.4 Hazards generated by noise
  4.5 Hazards generated by radiation
  4.6 Hazards generated by materials and substances
  4.7 Hazards generated by neglect of ergonomic
       principles
  4.8 Hazards caused by failure of energy supply
  4.9 Hazards caused by missing and/or incorrectly
       positioned safety related measures
5 Safety requirements and/or protective measures
  5.1 General
  5.2 Specific requirements
       5.2.1 Hazards due to sharp and rough parts
       5.2.2 Hazards due to hot surfaces
       5.2.3 Hoses, installation and shielding
       5.2.4 Cutter head on TBMs
       5.2.5 Handling of heavy loads
       5.2.6 Rotation and displacement (axial movement)
       5.2.7 High compressive loads
       5.2.8 Access to and egress from operating
              positions and servicing points
       5.2.9 Protection against falling objects, face
              collapse and flood
  5.3 Control stations
       5.3.1 General
       5.3.2 Ergonomics
       5.3.3 Visibility
  5.4 Guards and protective devices
       5.4.1 General
       5.4.2 Specification of guards
       5.4.3 Access to cutter head
       5.4.4 Conveyor
  5.5 Control devices and systems and safety circuits
       5.5.1 Control devices
       5.5.2 Control systems
       5.5.3 Safety circuits
       5.5.4 Starting and stopping and warning systems
       5.5.5 Emergency stops
       5.5.6 Failure of the power supply
  5.6 Towing connection
  5.7 Laser guidance
  5.8 Ventilation and the control of dust and gas
       5.8.1 General
       5.8.2 Exhaust gases of internal combustion engines
       5.8.3 Atmospheric changes and ingress of gases
  5.9 Noise reduction
       5.9.1 General
       5.9.2 Noise reduction at source at the design stage
       5.9.3 Noise emission determination
  5.10 Electrical equipment
       5.10.1 General
       5.10.2 Protective measures
       5.10.3 Cables and leads
       5.10.4 Transformers
       5.10.5 Earthing and bonding
       5.10.6 Switch gear
       5.10.7 Lighting
       5.10.8 Emergency lighting
  5.11 Isolation of high voltage power supply
  5.12 Energy supply other than electricity
  5.13 Fire prevention and protection
       5.13.1 General
       5.13.2 Fire extinguishing systems
       5.13.3 Installation of fire extinguishing systems
  5.14 Storage of rescue equipment
  5.15 Forward probing equipment
  5.16 Warning signs, warning devices, symbols
       5.16.1 Warning signs
       5.16.2 Warning devices
       5.16.3 Symbols
  5.17 Maintenance
       5.17.1 General
       5.17.2 Work on cutter heads
6 Verification of the safety requirements and/or protective
  measures
7 Information for use
  7.1 General
  7.2 Content of handbook
       7.2.1 General instructions
       7.2.2 Operating instructions
       7.2.3 Maintenance
       7.2.4 Spare parts
  7.3 Marking
Annex A (informative) Examples of tunnelling machines
Annex B (normative) Verification of safety requirements
        and/or protective measures
Annex ZA (informative) Relationship between this European
         Standard and the Essential Requirements of EU
         Directive 98/37/EC
Annex ZB (informative) Relationship between this European
         Standard and the Essential Requirements of EU
         Directive 2006/42/EC
Bibliography

1.1Description of the machinesThis European Standard is applicable to all types of shield machines and associated back up equipment, thrust boring machines, auger boring machines and lining erection equipment. It specifies the essential safety requirements for the design, installation, maintenance, and information for use of such machines.Shield machines and associated back up equipment include:-open shields for both manual and mechanical excavation;-shielded tunnel boring machines;-micro tunnelling machines;-towed or stationary back up equipment;-pipe jacking equipment.All shield machines provide lateral and radial ground support. In addition they may provide various types of face support and ground water control (see Clause 3).Certain associated matters are not included in the scope of the standard:-additional equipment which may form an integral part of a shield machine or back up equipment and is used for compressed air (hyperbaric/plenum) working (see EN 12110:2002);-use under hyperbaric conditions;-the supply of electricity up to the machine;-ancillary tools and equipment used for, at or on the machine;-electromagnetic compatibility;-loading and transport equipment which is not an integral part of the machine, e.g. rolling stock, man riders, grout cars, segment cars, muck cars.NOTEWithin the European Union Directive 94/9/EC concerning equipment and protective systems intended for use in potentially explosive atmospheres can be applicable to the type of machine or equipment covered by this European Standard. The present document is not intended to provide means of complying with the essential health and safety requirements of Directive 94/9/EC.1.2HazardsThis European Standard deals with significant hazards, hazardous situations and events relevant to shield machines and associated back up equipment, thrust boring machines and auger boring machines when they are used as intended and under the conditions foreseen