GB 26545-2011 PDF English
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| GB 26545-2011 | English | 505 |
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Building construction machinery and equipment -- Safety requirements of drill rigs
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GB 26545-2011: Building construction machinery and equipment -- Safety requirements of drill rigs
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB26545-2011
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 91.220
P 97
Building construction machinery and equipment - Safety
requirements of drill rigs
Issued on. JUNE 16, 2011
Implemented on. MAY 01, 2012
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 4
1 Scope... 5
2 Normative references... 6
3 Terms and definitions... 8
4 List of hazards... 12
5 Safety requirements and measures... 13
6 Verification of safety requirements/measures... 44
7 Instructions for use... 44
Appendix A (Normative) Measurement methods for noise and vibration... 50
Appendix B (Normative) Inspection and testing methods for pulleys, wire ropes and
chains... 53
Appendix C (Normative) Braking test for drill rigs, excluding drill rigs mounted on
trucks and tractors... 54
Appendix D (Normative) Relationship between drill rig operating conditions and
hazards... 57
Appendix E (Informative) Graphical symbols and signs... 59
Appendix F (Informative) Changes in chapter and figure numbers between this
Standard and EN 791.1995... 79
Appendix G (Informative) Technical differences between this Standard and EN
791.1995 and their causes... 81
Bibliography... 85
1 Scope
This Standard specifies the safety requirements for the design, manufacture, use and
maintenance of drill rigs, mainly involving the important operational safety and
ergonomics of drill rigs.
This Standard applies to drill rigs, including casing, for surface and underground hole
formation in building, tunnels, railways, roads, hydropower stations and water
conservancy projects.
Note. This Standard includes the major hazards of drill rigs under the conditions of
intended use and foreseeable by the manufacturer. However, this Standard does
not include all mechanical, electrical, hydraulic, pneumatic and other device
hazards, nor does it include all hazards involved in general standards. Hazards
not included in this Standard shall be subject to the relevant provisions of GB/T
15706.1 and GB/T 15706.2.
The drill rigs to which this Standard applies mainly has the following
characteristics.
a) There are three types of drilling methods. impact, rotary and rotary impact;
b) Chassis types include fixed, towed and self-propelled;
c) Mainly used to form pile holes, anchor holes, blasting holes and drainage
holes, etc. Specifically including the following models.
● Drill rigs for pile formation, mainly including impact drill rigs, rotary
drill rigs, long spiral drill rigs, forward/reverse circulation drill rigs,
swing/rotary casing drill rigs, pile top drill rigs, down-the-hole hammer
rock drill rigs, etc.;
● Drill rigs for anchoring, mainly rotary and rotary impact drill rigs;
● Drill rigs for blasting holes, mainly including rock drills (cars), down-
the-hole drills, rotary drills, etc.;
● Drill rigs for other purposes, including rotary spindle drill rigs, rotary
and rotary impact drill rigs for surface/underground drilling,
forward/reverse circulation drill rigs, horizontal directional drill rigs, etc.;
d) Casing or drilling fluid may be used to stabilize the drill hole.
Self-propelled drill rigs includes equipment with a movable chassis such as a
truck, tractor or other wheeled chassis, a tracked chassis, a walking chassis, a
sliding chassis (pulled by a winch), etc. Drill rigs using a truck, tractor, trailer
chassis or other wheeled chassis can travel at a higher speed on the road. Its
design and manufacture shall comply with the standards and regulations for both
drill rigs and road transport vehicles.
If the main machine of the drill rig is an excavator, crane, etc., this type of main
machine shall comply with its own standards when the requirements of this
Standard are not applicable.
If the drill rig is equipped with additional working devices other than the drilling
components specified in this Standard, such as piling devices, these additional
working devices shall also comply with their own safety standards.
Drill rigs used in explosive gas environments shall comply with the provisions
of relevant standards for equipment used in explosive gas environments.
This Standard does not apply to drill rigs used in the petroleum and natural gas industry,
or drill rigs used in open pit and underground mines.
2 Normative references
The terms in the following documents become the terms of this Standard by reference
to this Standard. For dated references, all subsequent amendments (not including errata
content) or revisions do not apply to this standard. However, parties to agreements that
are based on this Standard are encouraged to study whether the latest versions of these
documents can be used. For undated references, the latest edition applies to this
Standard.
GB/T 3766, Hydraulic Fluid Power - General Rules Relating to Systems (GB/T
3766-2001, eqv ISO 4413.1998)
GB/T 3811-2008, Design rules for cranes
GB 4351.1, Portable fire extinguishers - Part 1.Performance and construction (GB
4351.1-2005, ISO 7165.1999, Fire fighting - Portable fire extinguishers -
Performance and construction, NEQ)
GB 5226.1-2008, Electrical Safety of Machinery - Electrical Equipment of
Machines - Part 1.General Requirements (IEC 60204-1.2005, IDT)
3 Terms and definitions
The following terms and definitions are applicable to this Standard.
3.1
danger zone
Zone in and/or around drill rigs where there is a risk of injury to persons or damage to
health.
Note. For drill rig, it refers to the zone where people can come into contact with the
drill rig and its working, auxiliary, rotating and landing devices when they are
in operation.
3.2
working area
The area near the equipment where drilling tools are moved to complete the work.
3.3
exposed person
Personnels who are completely or partially located in the danger zone.
3.4
operator
The person who operates the drill rig to perform drilling operations. The operator can
also be the person who drives the drill rig.
3.5
driver
The person who is responsible for driving the drill rig.
3.6
hook load
The actual load lifted by the lower pulley hook block, including the weight of the lower
pulley hook block and the moving wire rope.
4 List of hazards
Hazards listed in Table 1 include all the hazards covered by this Standard. These hazards
are determined through risk assessment of drill rigs, and measures need to be taken to
eliminate or reduce them.
5 Safety requirements and measures
5.1 General safety requirements
5.1.1 Intended use of drill rigs
When developing and designing drill rigs, the intended use shall be considered in
accordance with Chapter 5 of GB/T 15706.1-2007.
5.1.2 Ergonomics
The design of drill rigs shall comply with ergonomic principles to avoid operator stress
and fatigue. It shall be taken into account that the operator may wear heavy gloves,
boots and other personal protective equipment. Refer to GB/T 8420 and GB/T 21935.
5.1.4 Ventilation openings
Mechanical ventilation and cooling openings shall be equipped with protective grilles
or similar devices in accordance with the requirements of GB 23821 to prevent fingers
or upper limbs from touching moving parts.
5.1.6 Materials
The materials used in drill rigs shall not be harmful to the safety and health of exposed
person.
5.1.9 Isolation of power source
All external power sources of drill rigs shall be isolated. Isolation devices shall be
clearly marked. If reconnection will endanger exposed person, the isolation device shall
be able to be locked. It shall comply with GB/T 19670 and GB 5226.1-2008 5.3.
After the power source is shut off, any residual or stored energy in the circuit shall be
5.2 Driving, tramming and operating positions
5.2.1 General
Driving, tramming and operating positions shall be reasonably designed and
manufactured so that the operator can complete all necessary actions of driving and
operating the drill rig in these positions without causing danger to himself or other
people near the drill rig. The operator’s body size and minimum activity space, as well
as the comfortable operation area and accessible range shall meet the requirements of
GB/T 8420 and GB/T 21935.
5.2.2 Operator position
The drill rig shall be provided with an operator’s cabin to protect the operator from
noise, dust and adverse weather. However, there are some types of drill rigs or operating
conditions where it is not suitable or possible to equip the operator’s cabin.
5.2.4 Field of view
The field of view at the driving and/or operating position shall ensure that the driver or
operator can operate the drill rig to drill or move without causing danger to himself or
others. If necessary, optical auxiliary devices shall be installed or other measures shall
be taken.
5.3 Control system functions
5.3.1 General
For the control functions of electrical, hydraulic and pneumatic systems, refer to
Chapter 7, Chapter 9, Chapter 11 of GB 5226.1-2008 and GB/T 3766 as well as GB/T
7932; for relevant safety components, refer to GB/T 16855.1.
5.4 Control device
5.4.1 General
Control devices shall be clearly marked in accordance with relevant standards and shall
be positioned to ensure safe, fast and comfortable operation, see 4.8.7 and Appendix E
of GB/T 15706.2-2007.
5.4.2 Emergency shutdown and safety devices
5.4.2.1 Emergency shutdown device
The emergency shutdown device shall comply with the requirements of GB 16754 and
shall be placed in a position that is easily accessible to the operator, see 5.3.3.2.
Once the emergency shutdown device is activated, it shall remain in effect until
manually reset. Manual reset shall not restart the machine, but only enable the machine
to restart through the normal start-up procedure.
5.7 Protection of moving parts
5.7.1 General
The design, manufacture and arrangement of moving parts of drill rigs shall be able to
avoid the hazards described in GB/T 15706.1.For exceptions, see 5.7.3.
5.7.3 Moving parts during operation
5.7.3.1 General
The design, manufacture and installation of drill rigs shall minimize manual operation
in danger zones.
6 Verification of safety requirements/measures
If the verification requirements are not clearly specified in the corresponding clauses,
such as stability, braking, noise and vibration, the safety requirements specified in this
Standard shall be verified by calculation, inspection and/or testing.
7 Instructions for use
7.1 Labels
The labels on drill rig and winch shall give at least the following information.
7.2 Indicator devices
7.2.1 Information indicator
The information required to control the drill rig shall be clear and easy to understand,
preferably using graphic symbols, see Appendix E.
7.2.2 Warning signs for residual hazards
Warnings shall be given where danger still exists despite all measures taken or where
there are potential dangers that are not obvious.
7.3 Maintenance and repair
Adjustment, maintenance, refueling, repair, cleaning and service work of drill rig shall
be carried out when the drill rig or the prime mover is shut down.
7.4 Instructions for drill rigs use manual
7.4.1 General
The instruction manual shall comply with 6.5 of GB/T 15706.2-2007.
Each drill rig shall be provided with an instruction manual containing the following.
7.4.2 operation instruction
The operation instruction shall enable the operator to understand how to use the
machine. The instruction manual shall include all important information for safe
operation of the machine.
7.4.5 Special safety instructions in maintenance instructions
To ensure safety, the following safety instructions shall be stated in separate clauses.
When an operator or assistant is required to work in the working area or danger zone of
the drill rig and needs to run one or several functions of the machine, the work can only
be carried out under the following conditions.
7.4.6 List of spare parts
The list of spare parts shall contain clear identification and information on the location
of all relevant spare parts on the drill rig.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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