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Ground Line

1 page · 1 crop · ×1 · other

Matched toExisting Ground Surfacebridge.ground_system.existing_groundon “Ground Line”

2 not established
The class asks forValueHowFrom
Ground LevelGLwants mnot establishedThe crop shows a Ground Line as an existing ground surface break line at far right of Section A-A, but no elevation/level value (e.g., in meters) is given for it. No datum or RL figure is stated anywhere in the reading.not found
ChainageCHwants mnot establishedNo chainage value is stated in the reading; the crop only provides section dimensions in mm for abutment, bearing, piles, etc., with no station/chainage callout for the ground line location.not found

Worked out by anthropic/claude-sonnet-5 from the readings below, which are the source. A derived value shows its arithmetic — check it against the drawing before it is priced.

Notes on the sheets that carry it

  • p2POT-PTFE BEARING (TYP.)
  • p2RCC SEISMIC STOPPER
  • p2STONE PITCHING
  • p2INDEPENDENT RETAINING WALL
  • p2600 THK. FILTER MEDIA
  • p21200 DIA BORED CAST-IN-SITU PILES

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

Page 2

crop

p02_r11 section a a

page 2 · structural_drawings_pkg_1_890ff33d80e843ef8aa5a52a7a9de3d8_p02_r11_section_a_a
Original
p02_r11 section a a
{
  "view": "Section",
  "objects": [
    {
      "name": "Abutment",
      "tag": "A2",
      "shape": "tapered/battered",
      "material": "reinforced concrete",
      "count": 1,
      "note": "Abutment with backwall supporting bearing seat, shown with sloped face against embankment"
    },
    {
      "name": "Bearing",
      "tag": "",
      "shape": "rectangular",
      "material": "PTFE/elastomeric (Pot-PTFE)",
      "count": 1,
      "note": "Labeled POT-PTFE BEARING (TYP.), seated on abutment cap"
    },
    {
      "name": "Seismic Stopper",
      "tag": "",
      "shape": "rectangular block",
      "material": "reinforced concrete",
      "count": 1,
      "note": "Labeled RCC SEISMIC STOPPER, adjacent to bearing"
    },
    {
      "name": "Expansion Joint",
      "tag": "",
      "shape": "linear gap",
      "material": "",
      "count": 1,
      "note": "Located at centerline of exp. joint, gap dimensions given as 80(SQ)/92(SK)"
    },
    {
      "name": "Deck/Girder",
      "tag": "",
      "shape": "rectangular slab with haunch",
      "material": "reinforced concrete",
      "count": 1,
      "note": "Top slab shown with 230 thickness dimension and 3500(SQ) span reference"
    },
    {
      "name": "Retaining Wall",
      "tag": "",
      "shape": "vertical wall",
      "material": "reinforced concrete (implied)",
      "count": 1,
      "note": "Labeled INDEPENDENT RETAINING WALL, separate from abutment"
    },
    {
      "name": "Pile",
      "tag": "",
      "shape": "circular",
      "material": "cast-in-situ concrete",
      "count": 4,
      "note": "Labeled 1200 DIA BORED CAST-IN-SITU PILES, shown in elevation/plan strip below section, 4 piles visible with spacing"
    },
    {
      "name": "Stone Pitching",
      "tag": "",
      "shape": "sloped layer",
      "material": "stone",
      "count": 1,
      "note": "Labeled STONE PITCHING on embankment slope"
    },
    {
      "name": "Filter Media",
      "tag": "",
      "shape": "layer",
      "material": "granular fill",
      "count": 1,
      "note": "Labeled 600 THK. FILTER MEDIA behind retaining wall"
    },
    {
      "name": "Embankment/Backfill",
      "tag": "",
      "shape": "sloped fill",
      "material": "earth/granular",
      "count": 1,
      "note": "Shown with hatching, sloped approach fill behind abutment"
    },
    {
      "name": "Ground Line",
      "tag": "",
      "shape": "irregular line",
      "material": "",
      "count": 1,
      "note": "Existing ground surface shown with break line at far right"
    }
  ],
  "measurements": [
    {
      "label": "",
      "value": "1070",
      "unit": "mm",
      "appliesTo": "distance from bearing CL to exp. joint CL, square case (SQ)"
    },
    {
      "label": "",
      "value": "1236",
      "unit": "mm",
      "appliesTo": "distance from bearing CL to exp. joint CL, skew case (SK)"
    },
    {
      "label": "",
      "value": "80",
      "unit": "mm",
      "appliesTo": "expansion gap, square case (SQ)"
    },
    {
      "label": "",
      "value": "92",
      "unit": "mm",
      "appliesTo": "expansion gap, skew case (SK), labeled EXP.GAP"
    },
    {
      "label": "",
      "value": "230",
      "unit": "mm",
      "appliesTo": "deck slab thickness"
    },
    {
      "label": "",
      "value": "3500",
      "unit": "mm",
      "appliesTo": "span/offset dimension (SQ) at deck level"
    },
    {
      "label": "",
      "value": "2650",
      "unit": "mm",
      "appliesTo": "vertical dimension, abutment section height"
    },
    {
      "label": "",
      "value": "1500",
      "unit": "mm",
      "appliesTo": "horizontal dimension near bearing seat"
    },
    {
      "label": "",
      "value": "2850",
      "unit": "mm",
      "appliesTo": "horizontal dimension near bearing seat"
    },
    {
      "label": "",
      "value": "1500",
      "unit": "mm",
      "appliesTo": "horizontal offset dimension near retaining wall base"
    },
    {
      "label": "",
      "value": "750",
      "unit": "mm",
      "appliesTo": "pile spacing, edge distance (left)"
    },
    {
      "label": "",
      "value": "3600",
      "unit": "mm",
      "appliesTo": "pile spacing (x3)"
    },
    {
      "label": "",
      "value": "750",
      "unit": "mm",
      "appliesTo": "pile spacing, edge distance (right)"
    },
    {
      "label": "",
      "value": "12300",
      "unit": "mm",
      "appliesTo": "total pile group width"
    },
    {
      "label": "",
      "value": "600",
      "unit": "mm",
      "appliesTo": "filter media thickness"
    },
    {
      "label": "",
      "value": "1200",
      "unit": "mm",
      "appliesTo": "pile diameter"
    },
    {
      "label": "1:150",
      "value": "1:150",
      "unit": "",
      "appliesTo": "drawing scale"
    }
  ],
  "notes": [
    "POT-PTFE BEARING (TYP.)",
    "RCC SEISMIC STOPPER",
    "STONE PITCHING",
    "INDEPENDENT RETAINING WALL",
    "600 THK. FILTER MEDIA",
    "1200 DIA BORED CAST-IN-SITU PILES"
  ],
  "labels": [
    "A2",
    "C OF EXP. JOINT",
    "C OF BRG.",
    "SECTION A-A",
    "(SCALE 1:150)"
  ],
  "description": "This crop shows a cross-section (Section A-A) through abutment A2 of a bridge, detailing the bearing arrangement, seismic stopper, expansion joint gap dimensions for square and skew conditions, the sloped embankment fill with stone pitching, an independent retaining wall with filter media, and a row of four 1200mm diameter bored cast-in-situ piles with their spacing dimensions. It documents the abutment structural detail, foundation piling layout, and associated earthwork/retaining elements at this location."
}

p02_r11 section a aSection

  • Ground Line×1irregular lineExisting ground surface shown with break line at far right

1070 mm1236 mm80 mm92 mm230 mm3500 mm2650 mm1500 mm+9 more