GB16423-2020
Safety regulation for metal and nonmetal mines
金属非金属矿山安全规程
GB 16423-2020 is a current mandatory Chinese national standard for Safety regulation for metal and nonmetal mines. It appears in the Food compliance cluster with a product safety focus and has an implementation date of Sep 1, 2021.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard specifies the safety requirements for the design, construction, mining, and closure phases of metal and nonmetal mines. It applies comprehensively to both opencast mines and underground mines, covering general provisions, mining methods, and emergency rescue protocols. It is strictly applicable to all metal and nonmetal mining enterprises operating in China. However, it does not apply to the mining of coal-associated metal/nonmetal ores, river and sea sand extraction, or the extraction of liquid and gaseous minerals like petroleum and natural gas.
Technical requirements
The standard mandates comprehensive safety management systems, requiring mining enterprises to establish clear responsibility systems, safety education, and training protocols. It sets rigid operational criteria for opencast mining, including step heights, slope stability management, and safety distances for equipment. For underground mining, it dictates strict requirements for safe exits, shaft and tunnel engineering, and specialized mining methods like backfilling and caving. Engineers must ensure that all underground operations maintain at least two independent safe exits. The standard details stringent technical parameters for hoisting and transportation systems. This includes safety factors for steel wire ropes, speed limitations for shaft and slope hoisting, and structural requirements for conveyors and locomotives. It also specifies the necessary safety protection devices for hoisting machinery, such as anti-fall devices and overspeed protections. Compliance with these mechanical and structural safety factors is mandatory for all transportation systems. For electrical facilities, the standard outlines requirements for power supply systems, cable installations, and protective grounding, particularly emphasizing underground electrical safety and explosion-proof requirements. It also covers underground environment control, specifying limits for air quality, dust, and meteorological conditions, alongside rigorous water hazard prevention and fire prevention measures. The standard further introduces specific safety protocols for special mining techniques, including hydraulic, dredging, and solution mining.
Testing methods
The standard outlines various inspection and monitoring procedures rather than specific laboratory testing methods. Key evaluations include regular slope stability analysis for opencast mines and continuous ground pressure monitoring for underground operations. It mandates routine inspections of hoisting equipment, including daily checks of steel wire ropes, breaking load tests for anti-fall devices, and annual comprehensive system tests. Operational testing of safety mechanisms, such as reverse ventilation tests for main fans, must be conducted annually. Additionally, it requires continuous environmental monitoring of underground air quality, dust levels, and water quality.
FAQs
What types of mining operations are regulated under GB 16423-2020?
This standard regulates the design, construction, mining, and mine closure processes for metal and nonmetal mines, including both opencast and underground operations. It does not apply to coal-associated metal/nonmetal mines, river or sea sand mining, or the extraction of liquid/gaseous minerals like petroleum and natural gas.
Are there any significant updates from the previous GB 16423-2006 version?
The 2020 version has removed all non-mandatory clauses, making the entire standard mandatory. It also added new chapters for special mining methods (such as hydraulic mining and solution mining) and emergency rescue, while canceling the occupational hazard prevention chapter.
Does GB 16423-2020 reference any other essential standards for compliance?
While it establishes comprehensive safety protocols, GB 16423-2020 specifically references GB 6722 for blasting safety and GB 18871 for ionizing radiation protection. Engineers must consult these referenced standards alongside GB 16423-2020 for full regulatory compliance.
The summary above provides a high-level overview of GB 16423-2020. To ensure complete compliance for your mining operations or equipment entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 16423-2020 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Safety
- CCS
- C72
- ICS
- 13.100
- Competent department
- National Mine Safety Administration
- Technical committee
- National Mine Safety Administration
Relationships
Replaces:GB 16423-2006