Safety Regulations for Blasting
1 Scope
This standard specifies the safety technical requirements for blasting and blasting unit's purchase, transportation, storage, using, processing, inspection and destruction of blasting materials and accessories.
This standard is applicable to various civil blasting, and unmilitary engineering blasting conducted by the Chinese People's Liberation Army and The Chinese Armed Police Force.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only the edition dated applies. For undated references, the latest edition (including any amendment) applies.
GB 18098 Determination of the toxic gases formed by detonation of industrial explosives
GB 50089 Safety code for design of engineering of civil explosives materials
GA 837 Security protection requirements for civil explosives magazine
GA 838 Safety code for miniature civil explosives magazine
GA/T 848 Guidelines for safety assessment for civil explosives magazine of blasting unit
GA 990 Qualification and management requirements for unit of blasting
GA 991 Management requirements for item of blasting
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
blasting
operation to do work on the media using the explosion energy of explosives for the purpose of achieving predetermined engineering objective
3.2
blasting unit
units holding blasting unit license and engaging in blasting, which are divided into two kinds, i.e. non-commercial and commercial units. Non-commercial blasting unit refers to the unit that performs blasting by itself within restricted area for its legal production activities; commercial blasting unit refers to the unit that has independent legal personality and takes up the design and construction, safety assessment and safety supervision of blasting items
3.3
blasting engineering and technical personnel
technical personnel who has professional blasting knowledge & practical experience and has passed examination and obtained the qualification certificate for engaging in blasting work
3.4
blasting personnel; personals engaged in blasting operations
it refers to blasting engineering and technical personnel, blaster, safety personnel and keeper engaged in blasting
3.5
adverse effects of blasting
possible harmful influence of blasting on the protected objects near the blasting area. Such as blasting vibration, individual flying object, air shock wave, noise, shock wave in water, dynamic water pressure, surge, dust and harmful gas
3.6
blasting circumstances
it generally refers to natural conditions and environmental conditions influencing blasting safety in and around the blasting area
3.7
rock blasting
operation to do work on rock media using the explosion energy of explosives for the purpose of achieving predetermined engineering objective
3.8
surface blasting
rock blasting carried out on ground surface.
3.9
underground blasting
rock blasting carried out under the ground (e.g. underground mine and chamber, tunnel, etc.)
3.10
short-hole blasting
blasting with the diameter and depth of blast hole less than or equal to 50mm and 5m respectively
3.11
deep-hole blasting
blasting with the diameter and depth of blast hole greater than 50mm and 5m respectively
3.12
blasting in complicated surroundings
blasting carried out by taking measures to control adverse effects in the environment with residential area, large cultivation farm or important facilities within 100m away from the edge of the blast area
3.13
development blasting; heading blast
blasting in such heading engineering as laneway and tunnel
3.14
chamber blasting
blasting for excavation of rock by intensive charge or strip-chamber charge
3.15
blasting in water; underwater blasting
blasting carried out in or under water media
3.16
presplitting blasting
blasting that the ignition is made before the main blast area by arranging intensive blast holes along the limit of excavation and using decoupling charging or charging of low-power explosives, to form a presplitting gap between the blast area and the reserved area for relieving the destroy of the blasting of main blast hole to the reserved rock mass and forming an even profile face
3.17
smooth blasting
blasting that the ignition is made after the main blasting area by arranging intensive blast holes along the limit of excavation and using decoupling charging or charging of low-power explosive, to form an even profile
3.18
delay blasting
blasting technique using delay detonator to make each charge initiate by different time sequence, which is divided into millisecond delay blasting and second delay blasting, etc.
3.19
demolition blasting
operation to dismantle building (structure) in blasting in accordance with the design requirement by taking measures to control the adverse effects
3.20
special blasting
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Classification of blasting engineering
5 Blasting design & construction, safety assessment and safety supervision
6 Basic requirements for blasting
7 Surface blasting
8 Underground blasting
9 High temperature blasting
10 Underwater blasting
11 Demolition blasting and short-hole blasting in urban area
12 Special blasting
13 Permissible safety distance and control to environmental impact
14 Purchase, transport and storage etc. of blasting materials and accessories used by blasting unit
Bibliography
