1.0.1 This Guideline is formulated with a view to cooperate with the implementation of "Technical Specifications for Construction of Highway Tunnel" (JTG F60-2009), refine the technical requirements for the construction of mountain highway tunnel (hereinafter collectively referred to as "highway tunnel") engineering, ensure the engineering quality, so that the tunnel construction is in line with requirements of advanced technology, security and environmental protection and economic feasibility.
1.0.2 This Guideline is applicable to newly build and reconstruct the highway tunnels at all levels based on drilling and blasting excavation; highway tunnels of other forms may refer to this.
1.0.3 Construction of highway tunnel shall be in accordance with the approved design documents. The construction preparation and construction processes shall all strengthen the geological review work and implement dynamic management on the basis of geological prediction, forecasting and monitoring measurement information.
1.0.4 The construction of highway tunnels shall actively and carefully promote the application of new technologies, new processes, new materials and new facilities, improve management level and technical level, save energy, reduce material consumption and improve overall economic efficiency.
1.0.5 During the construction process of highway tunnel, it shall have a comprehensive collection of raw data and information; construction records shall be done well and tunnel construction technology summary shall be prepared. When the tunnels are submitted and completed, submission and completion documents shall be handed over timely.
1. General Provisions
2. Terminologies and Symbols
2.1 Terminologies
2.2 Symbols
3. Preparation of Construction
3.1 General rules
3.2 Construction site and temporary works
3.3 Constructor, materials and equipment
4. Construction Survey
4.1 General rules
4.2 Control survey
4.3 Setting-out survey
4.4 Piercing error survey and adjustment
4.5 Handover (final) survey
5. Tunnel Adit, Open Tunnel and Shallow-buried District Projects
5.1 Tunnel adit projects
5.2 Open tunnel project
5.3 Shallow-buried district project
6. Excavation
6.1 General rules
6.2 Excavation method
6.3 Over-excavation and under-excavation control
6.4 Drilling and blasting design
7. Support and Lining
7.1 General rules
7.2 Shotcrete
7.3 Rock bolt
7.4 Steel frame
7.5 Lining steel bar
7.6 Forming concrete lining
7.7 Inverted arch and soleplate
8. Small-distance Tunnel and Multi-arch Tunnel
8.1 Small-distance tunnel
8.2 Multi-arch tunnel
9. Monitoring Measurement
9.1 General rules
9.2 Measuring operation
9.3 Data processing and application of measurement
10. Geological prediction
10.1 General rules
10.2 Gradation and prediction content of geology prediction
11. Waterproof and drainage
11.1 Generaly rules
11.2 Waterproof and drainage of construction
11.3 Construction of waterproof and drainage structure
11.4 Waterproofing of Grouting
12. Wind, Water and Electricity Supply
12.1 Wind supply
12.2 Water supply
12.3 Power supply and lighting
13. Access Adit
13.1 General rules
13.2 Inclined shaft
13.3 Vertical shaft
13.4 Transverse tunnel and parallel pilot tunnel
14. Ancillary Works Measures
14.1 Strata stabilization measures
14.2 Water inflow treatment measures
15. Construction of Adverse Geological and Special Geotechnical District
15.1 General rules
15.2 Expansive rock and soil
15.3 Loess
15.4 Karst
15.5 Water containing sand bed
15.6 Gas
15.7 Rock blasting
15.8 Weak crushing surrounding rock with abundant water
16. Tunnel Pavement Construction
17. Ancillary Facilities Engineering
17.1 Equipments tunnel, cross aisle and others
17.2 Decoration engineering
Appendix A Surrounding Rock Grades of Highway Tunnel
Appendix B Influencing Factors of Geological Hazard Grades
Appendix C Main Excavation Methods of Tunnel and Sequence Diagram of Excavation, Support
Appendix D Prophylaxis and Treatment of Collapse
Appendix E Ventilation System of Construction
Appendix F Construction Note of Lock Bolt Support with Shotcrete
Explanation of Wording in this Guideline
