1 Scope
This standard specifies the technical requirements of metal and nonmetal underground mines (including mines of accompanying radon and its daughters) on under-well ventilation system in safety assessment, design, construction and exploitation process.
This standard is applicable to safety assessment, design, construction and exploitation of metal and nonmetal underground mines (including mines of accompanying radon and its daughters). It is also applicable to the part of deep open-pit mine which is exploited by adopting underground shaft and drift.
This standard is not applicable to the exploitation of radioactive mineral resources, coal, mine coal-derived pyrite and other paragenetic mineral resources of coal.
This standard is not applicable to the exploitation of mineral resources in liquid or gas state like petroleum, natural gas, mineral water, etc.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB 16423 Safety Regulations for Metal and Nonmetal Mines
GB 4792 Basic Health Standards for Radiological Protection
GBZ 2 Occupational Exposure Limit for Hazardous Agents in the Workplace
GB 87 Specifications for the Design of Noise Control System in Industrial Enterprises
GB 50215 Code for Design of Mine of Coal Industry
YSJ 019 Code for Design of Nonferrous Metal Mining
3 Terms and Definitions
For the purpose of this standard, the following terms and definitions apply.
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Under-well Air Quality
5 Requiral Air-quantity Calculation of Mine
6 Mine Ventilation System
6.1 General Requirements
6.2 Main Ventilation Shaft and Drift
6.3 Under-well Air-requiring Point
6.4 Ventilation Control Facilities
6.5 Main Ventilator
6.6 Ventilation System for Multistage Fan Station
