GB/T 12719-2021Exploration specification of hydrogeology and engineering geology in mining areas (English PDF)

National Standard of the People's Republic of China

ICS

73.020

Classification

D14

Issued by: State Administration for Market Regulation; Standardization Administration of China

Contents

• Foreword
• 1 Scope
• 2 Normative references
• 3 Terms and definitions
• 4 General
• 4.1 Phase division and basic tasks of prospecting work
• 4.2 Basic Principles of Prospecting
• 5 Hydrogeological exploration of mining area
• 5.1 Classification of survey types
• 5.2 Requirements for the degree of exploration
• 5.3 Principles and quantities of survey engineering layout
• 5.4 Technical requirements for prospecting
• 5.5 Calculation of Mine (Pit) Water Inflow
• 5.6 Water inrush (inrush) risk assessment
• 5.7 Evaluation of comprehensive utilization of water resources in mining areas
• 6 Engineering geological survey of mining area
• 6.1 Classification of survey types
• 6.2 Requirements for the degree of exploration
• 6.3 Principles and quantity of survey engineering layout
• 6.4 Technical requirements for survey
• 6.5 Engineering geological evaluation of mining area
• 7 Investigation and evaluation of geological environment in mining area
• 7.1 Geological environment survey
• 7.2 Assessment of the geological environment of the mining area
• 8 Report preparation requirements
• 8.1 General requirements
• 8.2 Requirements for writing report
• 8.3 Drawings and Schedule
• Appendix B (Normative Appendix) Classification of Water Enrichment of Aquifers
• Appendix C (Informative Appendix) Calculation of Safety Waterproof Thickness and Water Inrush Coefficient
• Appendix D (informative appendix) Water inrush (inrush) risk assessment
• Appendix E (Normative Appendix) Structural surface classification
• Appendix F (informative appendix) Classification of weathering degree of rock mass
• Appendix G (Normative Appendix) Rock, rock mass quality and rock mass pros and cons classification
• Appendix H (Normative Appendix) Classification of Rock Mass Structure
• Appendix I (informative appendix) Rock (soil) sample indoor test project
• References