This Code is prepared on the basis of Code for Design on Subgrade o f RaiLway (TB 10001-2005) as per the requirements of National Railway Administration to establish a standard systemfor railway engineering and construction by summing up experience and research results in recent years on earthworks construction and operation of high-speed railway, intercity railway, mixed passenger and freight railway and heavy-haul railway.lt is a comprehensively revised edition to meet the needs for earthworks construction and development,to unify the design standard and improve the design level of railway earthworks,and to ensure the safety and quality of railway earthworks after learning from relevant standards of China and other countries and soliciting opinions on a wide basis. rrhis Code prioritizes safe operation and emphasizes the technical requirements regarding construction quality, resource saving, environmental protection and disaster prevention and mitigation in view of China- s present conditions9 and economic and social development.lt also specifies the main design criteria of railway earthworks based on different types of traffic and different grades of speed,making this Code more scientific and rational regarding technology and cost efficiency.
【目录】
1 General Provisions 2 Terms and Symbols 2.1 Terms 2.2 Symbols 3 Basic Requirements 3.1 Elevation of Track Shoulder 3.2 Shape and Width of Earthworks Surface 3.3 Earthworks Stability and Settlement Control Criteria 3.4 Deformation Monitoring and Assessment 3, 5 Design Service Life 4 Design Loads 4.1 General Requirements 4.2 Main Forces 4.3 Additional Forces 4.4 Special Loads 5 Construction Materials 5.1 General Requirements 5.2Fill Materials 5.3 Stone 5.4 Concrete 5.5 Cement Mortar 5.6 Steel 5.7 Geosynthetics 6 Subgrade 6.1 General Requirements 6.2 Structure of Subgrade 6.3 Subgrade of Embankment 6.4 Subgrade of Cutting 6.5 Compaction Criteria of Subgrade 6.6 Subgrade Treatment Measures 7 Embankment 7.1 General Requirements 7.2 Requirements on Fill Material and Filling 7.3 Compaction Criteria 7.4 Slope Shape and Slope Rate 8 Cutting 8.1 General Requirements 8.2 Soil Cutting 8.3 Rock Cutting 9 Transition Section 9.1 GeneraI Requirements 9.2 Transition Section between Earthworks and Abutment 9.3 Transition Section between Earthworks and Transverse Structures 9.4 Transition Section between Embankment and Cutting 9.5 Transition Section between Cutting and Tunnel 10 Ground Treatment 10.1 General Requirements 10.2 Primary Technical Requirements 10.3 Common Measures 11 Retaining Structures 11.1 General Requirements 11.2 Primary Design Principles 11.3 Types and Application Range of Common Retaining Structures 12 Protection of Earthworks 12.1 General Requirements 12.2 Vegetation Protection 12.3 Framework Revetment 12.4 Solid Revetment (Wall) 12.5 Window Revetment (Wall) 12.6 Anchored Frame Beam 12.7 Shotcrete (Mortar Spraying) 12.8 Gabion Protection 12.9 Protective Mesh 12.10 Geosynthetics 12.11 Protection of Earthworks in Windy, Sandy and Snowy Regions 12.12 Thermal Insulation of Earthworks 13 Waterproofing and Drainage of Earthworks 13.1 General Requirements 13.2 Surface Water 13.3 Groundwater 14 Earthworks in Upgrading of Existing Line and Construction of Second Line 14.1 General Requirements 14.2 Earthworks of Upgrading Existing Railway Line 14.3 Earthworks in Construction of Second Line 14.4 Upgrading9Reinforcement and Utilization of Existing Works 15 Borrow (Disposal) Area and Cut-fill Balance 15.1 General Requirements 15.2 Borrow Area 15.3 Disposal Area (Pile) 15.4 Reclamation and Protection of Borrow (Disposal) Area 15.5 Cut-fill Balance 16 Interface Design of Earthworks 16.1 General Requirements 16.2 Safety Protection Facilities 16.3 Cable Trough 16.4 Others Appendix A Classification of Common Groups of Fill Materials Appendix B Design and Test Requirements for Improved Soil B.1 General Requirements B.2 Survey and Test on Fill Materials B.3 Technical Indices of Design for Improved Soil B.4 Design of Improved Soil Appendix C Type of Steel and Grade and Strength of Concrete Appendix D Applicable Conditions of Common Ground Treatment Methods and Measures Appendix E Greening Protection of Earthworks Slope Appendix F Design Chart for Waterproof and Drainage of Earthworks Words Used for Different Degrees of Strictness
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