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Backfill Material

1 page · 1 crop · earthwork

Matched toStructural Backfillbridge.approach_earthwork_system.structural_backfillon “back filling material”

2 not established
The class asks forValueHowFrom
VolumeVwants m3not establishedThe notes require back filling material behind the abutment to be well compacted, but provide no backfill dimensions, extents, section geometry, or quantity from which volume can be calculated.not found
Material TypeMATnot establishedThe item-specific note identifies back filling material behind the abutment and requires compaction in accordance with Appendix 6 of IRC 78:2014 and MORTH specification, but does not state a material type. The separate selected earth fill specification applies to backfilling behind the RE wall, not explicitly to the abutment backfill item.not found

Worked out by openai/gpt-5.6-terra-pro from the readings below, which are the source. A derived value shows its arithmetic — check it against the drawing before it is priced.

How the sheets named it

back filling material

Notes on the sheets that carry it

  • p21. ALL DIMENSIONS ARE IN MILLIMETERS AND LEVELS ARE IN METERS UNLESS OTHERWISE SPECIFIED.
  • p22. DIMENSIONS ARE NOT TO BE SCALED. ONLY WRITTEN DIMENSIONS SHALL BE FOLLOWED.
  • p23. THIS DRAWING SHALL BE READ IN CONJUNCTION WITH RESPECTIVE HIGHWAY ALIGNMENT DRAWINGS.
  • p24. THE BRIDGE HAS BEEN DESIGNED FOR FOUR LANE OF CLASS A, ONE LANE CLASS 70R + TWO LANE OF CLASS A, ONE LANE OF 70R + ONE LANE OF 70R OR SV LOADING WHICHEVER GOVERNS, IS CONSIDERED AS LIVE LOAD.
  • p25. GRADE OF CONCRETE FOR VARIOUS STRUCTURAL COMPONENTS SHALL BE AS FOLLOWS:-
  • p26. CLEAR COVER TO ANY REINFORCEMENTS SHALL BE AS FOLLOWS:
  • p27. ALL REINFORCING STEEL SHOULD BE HIGH YIELD STRENGTH DEFORMED (TMT) BARS OF GRADE-Fe 550D, CONFORMING TO IS: 1786.
  • p28. STRIP SEAL TYE OF EXPANSION JOINT SHALL BE PROVIDED AS PER M O R T H SPECIFICATION.
  • p29. BITUMINOUS CONCRETE 50MM THICK LAID IN SINGLE LAYER.
  • p210. FRL, CAMBER / SUPER ELEVATION & LAYOUT SHALL BE FOLLOWED AS PER LATEST PLAN & PROFILE DRAWING.
  • p211. DRAINAGE SPOUT SHALL BE PROVIDED IN DECK SLAB AS PER M O R T H SPECIFICATION.
  • p212. BACK FILLING MATERIAL BEHIND ABUTMENT SHALL BE WELL COMPACTED AS PER APPENDIX 6 OF IRC 78:2014 & M O R T H SPECIFICATION BEFORE RESTING THE SUPERSTRUCTURE.
  • p213. THE STRUCTURE IS LOCATED IN SEISMIC ZONE III AND WIND ZONE IV & ’SEVERE’ EXPOSURE CONDITION.
  • p214. DIMENSION OF STRUCTURES ARE TENTATIVE AND WILL BE FINALIZED AFTER DETAIL DESIGN.
  • p215. THE SELECTED EARTH FILL USED FOR BACKFILLING BEHIND RE WALL SHALL HAVE THE FOLLOWING PROPERTIES. C=0, ø>32°,γ=2T/m³
  • p216. THE PIERCAP TOP LEVEL HAS BEEN FIXED CONSIDERING 400mm DEPTH OF BRG. & PEDESTAL. IN CASE THE BEARING HEIGHT IS LESS THAN THAT OF 200mm THEN THE HEIGHT OF THE BEARING SHALL BE ADJUSTED IN 200mm PEDESTAL.
  • p217. FOR DIMENSION & REINFORCEMENT DETAILS OF APPROACH SLAB, GAP SLAB, CRASH BARRIER & DRAINAGE SPOUTS REFER MISCELLANEOUS DRG.
  • p218. TENTATIVE WORKING PILE LOAD AND SUBJECTED TO CHANGE AS PER DETAILED DESIGN:–

Every crop it was read in — the drawing beside what the model took off it

Page 2

crop

p02_r03 notes

page 2 · structural_drawings_pkg_1_cede2c5e58c24d1b92ee5a813c5fab4c_p02_r03_notes
Original
p02_r03 notes
{
  "view": "Notes",
  "objects": [
    {
      "name": "PSC precast girder",
      "tag": "",
      "shape": "",
      "material": "precast concrete",
      "count": null,
      "note": "Concrete grade specified as M50."
    },
    {
      "name": "cast in situ deck slab",
      "tag": "",
      "shape": "",
      "material": "reinforced concrete",
      "count": null,
      "note": "Concrete grade specified as M45."
    },
    {
      "name": "end cross girder",
      "tag": "",
      "shape": "",
      "material": "reinforced concrete",
      "count": null,
      "note": "Concrete grade specified as M45."
    },
    {
      "name": "intermediate cross girder",
      "tag": "",
      "shape": "",
      "material": "reinforced concrete",
      "count": null,
      "note": "Concrete grade specified as M45."
    },
    {
      "name": "bearing pedestal",
      "tag": "",
      "shape": "",
      "material": "concrete",
      "count": null,
      "note": "Concrete grade specified as M50."
    },
    {
      "name": "crash barrier",
      "tag": "",
      "shape": "",
      "material": "concrete",
      "count": null,
      "note": "Concrete grade specified as M40."
    },
    {
      "name": "approach slab",
      "tag": "",
      "shape": "",
      "material": "concrete",
      "count": null,
      "note": "Concrete grade specified as M30."
    },
    {
      "name": "levelling course",
      "tag": "",
      "shape": "",
      "material": "concrete",
      "count": null,
      "note": "Concrete grade specified as M15."
    },
    {
      "name": "dirt wall & slab",
      "tag": "",
      "shape": "",
      "material": "concrete",
      "count": null,
      "note": "Concrete grade specified as M35."
    },
    {
      "name": "abutment",
      "tag": "",
      "shape": "",
      "material": "concrete",
      "count": null,
      "note": "Concrete grade specified as M45."
    },
    {
      "name": "pier",
      "tag": "",
      "shape": "",
      "material": "concrete",
      "count": null,
      "note": "Concrete grade specified as M45."
    },
    {
      "name": "pile foundation",
      "tag": "",
      "shape": "",
      "material": "concrete",
      "count": null,
      "note": "Concrete grade specified as M35; tentative working pile loads are stated."
    },
    {
      "name": "reinforcing steel bars",
      "tag": "",
      "shape": "deformed",
      "material": "high yield strength steel",
      "count": null,
      "note": "TMT bars of grade-Fe 550D, conforming to IS: 1786."
    },
    {
      "name": "strip seal type expansion joint",
      "tag": "",
      "shape": "",
      "material": "",
      "count": null,
      "note": "To be provided as per M O R T H specification."
    },
    {
      "name": "bituminous concrete",
      "tag": "",
      "shape": "single layer",
      "material": "bituminous concrete",
      "count": null,
      "note": "Laid in single layer."
    },
    {
      "name": "drainage spout",
      "tag": "",
      "shape": "",
      "material": "",
      "count": null,
      "note": "To be provided in deck slab as per M O R T H specification."
    },
    {
      "name": "back filling material",
      "tag": "",
      "shape": "",
      "material": "",
      "count": null,
      "note": "Behind abutment; to be well compacted."
    },
    {
      "name": "RE wall",
      "tag": "",
      "shape": "",
      "material": "",
      "count": null,
      "note": "Selected earth fill behind RE wall is specified."
    },
    {
      "name": "bearing",
      "tag": "",
      "shape": "",
      "material": "",
      "count": null,
      "note": "Bearing height is referenced in relation to a 200mm pedestal."
    },
    {
      "name": "piercap",
      "tag": "",
      "shape": "",
      "material": "",
      "count": null,
      "note": "Top level fixed considering bearing and pedestal depth."
    },
    {
      "name": "gap slab",
      "tag": "",
      "shape": "",
      "material": "",
      "count": null,
      "note": "Refer miscellaneous drawing for dimension and reinforcement details."
    }
  ],
  "measurements": [
    {
      "label": "PSC PRECAST GIRDER concrete grade",
      "value": "M50",
      "unit": "",
      "appliesTo": "PSC precast girder"
    },
    {
      "label": "R.C.C. CAST IN SITU DECK SLAB concrete grade",
      "value": "M45",
      "unit": "",
      "appliesTo": "cast in situ deck slab"
    },
    {
      "label": "R.C.C. END CROSS GIRDER concrete grade",
      "value": "M45",
      "unit": "",
      "appliesTo": "end cross girder"
    },
    {
      "label": "R.C.C. INTERMEDIATE CROSS GIRDER concrete grade",
      "value": "M45",
      "unit": "",
      "appliesTo": "intermediate cross girder"
    },
    {
      "label": "BEARING PEDESTAL concrete grade",
      "value": "M50",
      "unit": "",
      "appliesTo": "bearing pedestal"
    },
    {
      "label": "CRASH BARRIER concrete grade",
      "value": "M40",
      "unit": "",
      "appliesTo": "crash barrier"
    },
    {
      "label": "APPROACH SLAB concrete grade",
      "value": "M30",
      "unit": "",
      "appliesTo": "approach slab"
    },
    {
      "label": "LEVELLING COURSE concrete grade",
      "value": "M15",
      "unit": "",
      "appliesTo": "levelling course"
    },
    {
      "label": "DIRT WALL & SLAB concrete grade",
      "value": "M35",
      "unit": "",
      "appliesTo": "dirt wall & slab"
    },
    {
      "label": "ABUTMENT & PIER concrete grade",
      "value": "M45",
      "unit": "",
      "appliesTo": "abutment & pier"
    },
    {
      "label": "PILE FOUNDATION concrete grade",
      "value": "M35",
      "unit": "",
      "appliesTo": "pile foundation"
    },
    {
      "label": "Foundation clear cover to reinforcements",
      "value": "75",
      "unit": "mm",
      "appliesTo": "foundation"
    },
    {
      "label": "Substructure abutment & abutment cap clear cover to reinforcements",
      "value": "45",
      "unit": "mm",
      "appliesTo": "abutment & abutment cap"
    },
    {
      "label": "Substructure pier & pier cap clear cover to reinforcements",
      "value": "45",
      "unit": "mm",
      "appliesTo": "pier & pier cap"
    },
    {
      "label": "Superstructure clear cover to reinforcements",
      "value": "45",
      "unit": "mm",
      "appliesTo": "superstructure"
    },
    {
      "label": "Reinforcing steel grade",
      "value": "Fe 550D",
      "unit": "",
      "appliesTo": "reinforcing steel bars"
    },
    {
      "label": "Bituminous concrete thickness",
      "value": "50",
      "unit": "MM",
      "appliesTo": "bituminous concrete"
    },
    {
      "label": "Selected earth fill cohesion",
      "value": "C=0",
      "unit": "",
      "appliesTo": "selected earth fill behind RE wall"
    },
    {
      "label": "Selected earth fill friction angle",
      "value": "ø>32°",
      "unit": "",
      "appliesTo": "selected earth fill behind RE wall"
    },
    {
      "label": "Selected earth fill unit weight",
      "value": "γ=2",
      "unit": "T/m³",
      "appliesTo": "selected earth fill behind RE wall"
    },
    {
      "label": "Depth of BRG. & PEDESTAL",
      "value": "400 mm — on bearing & pedestal",
      "unit": "mm",
      "appliesTo": "piercap"
    },
    {
      "label": "Bearing height threshold",
      "value": "200",
      "unit": "mm",
      "appliesTo": "bearing"
    },
    {
      "label": "Pedestal height",
      "value": "200",
      "unit": "mm",
      "appliesTo": "pedestal"
    },
    {
      "label": "MAX. VERTICAL LOAD",
      "value": "300",
      "unit": "T",
      "appliesTo": "pile"
    },
    {
      "label": "LATERAL LOAD",
      "value": "50",
      "unit": "T",
      "appliesTo": "pile"
    }
  ],
  "notes": [
    "1. ALL DIMENSIONS ARE IN MILLIMETERS AND LEVELS ARE IN METERS UNLESS OTHERWISE SPECIFIED.",
    "2. DIMENSIONS ARE NOT TO BE SCALED. ONLY WRITTEN DIMENSIONS SHALL BE FOLLOWED.",
    "3. THIS DRAWING SHALL BE READ IN CONJUNCTION WITH RESPECTIVE HIGHWAY ALIGNMENT DRAWINGS.",
    "4. THE BRIDGE HAS BEEN DESIGNED FOR FOUR LANE OF CLASS A, ONE LANE CLASS 70R + TWO LANE OF CLASS A, ONE LANE OF 70R + ONE LANE OF 70R OR SV LOADING WHICHEVER GOVERNS, IS CONSIDERED AS LIVE LOAD.",
    "5. GRADE OF CONCRETE FOR VARIOUS STRUCTURAL COMPONENTS SHALL BE AS FOLLOWS:-",
    "6. CLEAR COVER TO ANY REINFORCEMENTS SHALL BE AS FOLLOWS:",
    "7. ALL REINFORCING STEEL SHOULD BE HIGH YIELD STRENGTH DEFORMED (TMT) BARS OF GRADE-Fe 550D, CONFORMING TO IS: 1786.",
    "8. STRIP SEAL TYE OF EXPANSION JOINT SHALL BE PROVIDED AS PER M O R T H SPECIFICATION.",
    "9. BITUMINOUS CONCRETE 50MM THICK LAID IN SINGLE LAYER.",
    "10. FRL, CAMBER / SUPER ELEVATION & LAYOUT SHALL BE FOLLOWED AS PER LATEST PLAN & PROFILE DRAWING.",
    "11. DRAINAGE SPOUT SHALL BE PROVIDED IN DECK SLAB AS PER M O R T H SPECIFICATION.",
    "12. BACK FILLING MATERIAL BEHIND ABUTMENT SHALL BE WELL COMPACTED AS PER APPENDIX 6 OF IRC 78:2014 & M O R T H SPECIFICATION BEFORE RESTING THE SUPERSTRUCTURE.",
    "13. THE STRUCTURE IS LOCATED IN SEISMIC ZONE III AND WIND ZONE IV & ’SEVERE’ EXPOSURE CONDITION.",
    "14. DIMENSION OF STRUCTURES ARE TENTATIVE AND WILL BE FINALIZED AFTER DETAIL DESIGN.",
    "15. THE SELECTED EARTH FILL USED FOR BACKFILLING BEHIND RE WALL SHALL HAVE THE FOLLOWING PROPERTIES. C=0, ø>32°,γ=2T/m³",
    "16. THE PIERCAP TOP LEVEL HAS BEEN FIXED CONSIDERING 400mm DEPTH OF BRG. & PEDESTAL. IN CASE THE BEARING HEIGHT IS LESS THAN THAT OF 200mm THEN THE HEIGHT OF THE BEARING SHALL BE ADJUSTED IN 200mm PEDESTAL.",
    "17. FOR DIMENSION & REINFORCEMENT DETAILS OF APPROACH SLAB, GAP SLAB, CRASH BARRIER & DRAINAGE SPOUTS REFER MISCELLANEOUS DRG.",
    "18. TENTATIVE WORKING PILE LOAD AND SUBJECTED TO CHANGE AS PER DETAILED DESIGN:–"
  ],
  "labels": [
    "NOTES:",
    "FOUNDATION",
    "SUBSTRUCTURE",
    "SUPERSTRUCTURE",
    "ABUTMENT & ABUTMENT CAP",
    "PIER & PIER CAP",
    "MAX. VERTICAL LOAD",
    "LATERAL LOAD"
  ],
  "description": "This crop is a general notes block for a bridge drawing. It states drawing conventions, design loading, material grades, reinforcement cover, construction requirements, exposure conditions, and tentative pile working loads."
}

p02_r03 notesNotes

  • back filling materialBehind abutment; to be well compacted.

M50 PSC PRECAST GIRDER concrete gradeM45 R.C.C. CAST IN SITU DECK SLAB concrete gradeM45 R.C.C. END CROSS GIRDER concrete gradeM45 R.C.C. INTERMEDIATE CROSS GIRDER concrete gradeM50 BEARING PEDESTAL concrete gradeM40 CRASH BARRIER concrete gradeM30 APPROACH SLAB concrete gradeM15 LEVELLING COURSE concrete grade+17 more