Detail of TB 10414-2003

Introduction of TB 10414-2003

1.0.1 This standard id formulated to strengthen the constructional quality management of railway engineering, unify the constructional quality acceptance of railway subgrade engineering and guarantee the engineering quality. 1.0.2 This standard is applicable to the constructional quality acceptance of subgrade engineering for new and rebuild full-gauge railway on which the passenger and carriage trains run in the mixed mode at the speed of passenger train less than or equal to the design running speed. the supplemented standard shall be formulated for the constructional quality acceptance of subgrade engineering for other railway, and new technology, process, equipment and material not involved in this standard. 1.0.3 The construction organization, as the main body of constructional quality control, shall conduct the overall-process control on the constructional quality of engineering; the parties including development organization, supervision organization and survey & design organization shall progress the control on the engineering quality in construction phases in accordance with the relevant regulations. 1.0.4 The railway subgrade engineering construction shall comply with the requirement of the strategy "Sustainable Development of National Economy", deal well with the works environmental protection and soil conservation, and realize the rational utilization of resources and civilized and safe working. 1.0.5 The quality data gained in the inspection and test of the constructional quality of railway subgrade engineering shall be authentic and reliable, and fully reflect the condition of the engineering quality. the adopted methods and instruments & equipments shall meet the requirements of the relevant standards. 1.0.6 The constructional quality requirements in contractual document and engineering technical documents adopted in railway subgrade engineering construction must not be lower than the ones in this standard. 1.0.7 Besides the provisions of this standard, the constructional quality acceptance of railway subgrade engineering shall comply with the provisions of the related current national this standards.

Contents of TB 10414-2003

1 General 2 Terms 3 Fundamental Rules 3.1 General Requirements 3.2 Division of Constructional Quality Acceptance of Engineering 3.3 Constructional Quality Acceptance of Engineering 3.4 Procedure and Organization of Constructional Quality Acceptance of Engineering 4 Subgrade Treatment 4.1 Leveling and Rolling of Original Ground 4.2 Replacement 4.3 Packing Up Sedimentation By Dumping Stones 4.4 High Pressure Jet-Grouting Pile 4.5 Slurry Jetting Mixing Pile 4.6 Dry Jet Mixing Pile 4.7 Sand Pile 4.8 Gravel Pile 4.9 Lime-soil Compaction Pile 4.10 Sand Bag Well 4.11 Plastic Drain Board 4.12 Geosynthetic Reinforced Cushion 4.13 Sand (Gravel) Cushion 4.14 Force Tamping 4.15 Heavy Tamping 4.16 Preloading by Vacuum 4.17 Preloading by Stacking 4.18 Capillary Water Intercepting Layer 4.19 Composite Geomembrane Intercepting Layer 4.20 Cave and Concave Treatment 5 Embankment under Subgrade Bed 5.1 General Embankment Filling 5.2 Slope of Embankment 5.3 Filling of Transitionary Section between Embankment And Abutment 5.4 Reinforced Soil Embankment Filling 5.5 Improved Soil Embankment Filling 5.6 Rockfill Embankment 5.7 Embankment Filling on Saline Subgrade 5.8 Embankment Filling on Soft Subsoil 5.9 Embankment Filling on Frozen Subsoil 5.10 Swelling Soil Embankment Filling 5.11 Loess Embankment Filling 5.12 Borrow Pit (Yard) 6 Subgrade Bed 6.1 Underlayer of Subgrade Bed 6.2 Surface Layer of Subgrade Bed 6.3 Subgrade Surface 7 Cut 7.1 Underlayer of Subgrade Bed Within Cutting 7.2 Surface Layer of Subgrade Bed Within Cutting 7.3 Cut Excavation 7.4 Swelling Rock (Soil) Cutting 7.5 Loess Cutting 7.6 Frozen Soil Cutting 7.7 Spoil Ground (Mound) 8 Gravity Retaining Wall 8.1 Open Cut of Foundation Pit 8.2 Foundation 8.3 Pile Foundation 8.4 Pile Foundation Cap 8.5 Open Caisson Foundation 8.6 Replacement Foundation 8.7 Retaining Wall Body and Back Filling 9 Short-landed Retaining Wall with Relieving Plate 9.1 Open Cut of Foundation Pit 9.2 Foundation 9.3 Retaining Wall Body and Back Filling 9.4 Short-landed Relieving Plate 10 Cantilever and Buttressed Retaining Wall 10.1 Open Cut of Foundation Pit 10.2 Wall Toe Plate and Wall Heel Plate 10.3 Wallboard and Buttressed Wall 11 Anchor bar retaining wall 11.1 Open cut of Foundation Pit 11.2 Foundation 11.3 Fabrication and Fixing of Anchor Bar 11.4 Bursal Rays and Wallboard 11.5 Classified Platform 12 Anchor-plate Retaining Wall 12.1 Open cut of Foundation Pit 12.2 Foundation 12.3 Bursal Rays and Wallboard 12.4 Drawbar and Anchor Plate 12.5 Wall Back Filling 12.6 Classified Platform 13 Reinforced Earth Retaining Wall 13.1 Open Cut of Foundation Pit 13.2 Foundation 13.3 Wallboard 13.4 Lashing Wire 13.5 Filling 13.6 Reinforced Concrete Coping Stone 14 Soil Nailing Wall 14.1 Soil Nail 14.2 Reinforcement Mat (Geonet) 14.3 Shotcrete Surface Layer 14.4 Open Cut of Foundation Pit 14.5 Concrete (masonry) Toe Wall 15 Anti-slide Pile 15.1 Pile Hole 15.2 Reinforcing Cage 15.3 Pile Body Concrete 15.4 Surface Drainage and Pile Top Sealing 16 Pile-board Retaining Wall 16.1 Pile Hole Excavation 16.2 Reinforcing Cage 16.3 Pile Body Concrete 16.4 Soil Shield 16.5 Wall Back Filling 17 Prestressed Tendons 17.1 Tendon Hole 17.2 Tendon Weaving 17.3 Grouting Anchorage 17.4 Tendon Tensioning 17.5 Locking and Grouting 17.6 Cushion Block and Concrete Seal 18 Subgrade Protections 18.1 Plant Protection 18.2 Geomat-and-geonet Slope Protection 18.3 Concrete-and-grouting Slope (Wall) Protection 18.4 Dry Stone Pitching 18.5 Shotcrete Support of Side Slope 18.6 Net Suspension and Shotcrete-anchorage Support of Side Slope 18.7 Rejoining, Grouting, Jointing and Patching of Side Slope 18.8 Roof Propping of Side Slope 18.9 Stone Blocking Wall, Stone Blocking Dike and Cushioning Filling Layer 18.10 Stone Blocking Net, Pile and Column 18.11 Sand Fixation and Blocking Facilities 18.12 Air Stopping 18.13 Snow Defense Facilities 18.14 Bank Protection 18.15 Training Dike 18.16 Baffling Dike 18.17 Water Retaining Bank 19 Subgrade Drainage 19.1 Surface Drain 19.2 Rush Gutter 19.3 Underground Drainage 19.4 Support Seepage Ditch 19.5 Leaching Well 19.6 Water Seepage and Discharge Tunnel 19.7 Riverbed Excavation 19.8 Riverbed Erosion Protection 20 Subgrade Ancillary Facilities 20.1 Handrail and Inspection Ladder 20.2 Isolated Fence 21 Evaluations on Appearance Quality of Unit Construction 21.1 General Provisions 21.2 Evaluation Criteria Annex A Allowable Deviation of Subgrade Midline and Elevation Annex B Compaction Standard of Subgrade Bed Annex C Filling Compaction Standard of Road Embankment under Subgrade Bed Annex D Allowable Eutectic Salt Content of Saline Foundation Soil and Filling Annex E Quality and Inspection of Related Materials E.1 General Provisions E.2 Inspection of Raw Materials E.3 Fine Aggregate E.4 Coarse Aggregate E.5 Water E.6 Stones Annex F Provisions on Random Inspection of Industrial Insulation Material (Hard Polyurethane and Polystyrene) Construction Annex G Quantity and Evaluation of Strength Test for Improved Soil Specimen Explanation of Wording in This Standard