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  1. #1
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    Default Help With Entering Survey Data Into AutoCad Civils 3D & Making Adjustments

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    Hello everyone

    I was wondering if anyone out there was knowledgeable about entering survey data and carrying out adjustments to vertical levels in Autocad Civil 3D? The problem I am having is this, I have carried out a Level survey using the Height Of Collimation method (HOC), the equipment I used was a simple optical level.

    My survey data is as follows:-

    Point Number BS INTER FS HOC RD COMMENTS
    0 28 38 10 TBM (Control Point)
    1 20 18
    2 35 3
    3 61 7 92 31 CP
    4 40 52
    5 30 62
    6 15 65 42 27 CP
    7 46 -4
    8 37 5
    9 48 -6 CP
    6 39 15 66 27 FLY BACK
    3 27 42 51 24 FLY BACK
    0 50 1 FLY BACK


    I then summarized this data into XYZ co-ordinates, as follows:-

    Point Number Northing (Y) Easting (E) Elevation(Z) COMMENTS
    0 0 50 10 TBM (Control Point)
    1 0 200 18
    2 0 300 3
    3 0 400 31 CP
    4 0 500 52
    5 0 600 62
    6 0 700 27 CP
    7 0 800 -4
    8 0 900 5
    9 0 1000 -6 CP
    6 0 700 27 FLY BACK
    3 0 400 24 FLY BACK
    0 0 50 1 FLY BACK

    The only control point in my survey is point 0 which has an elevation of 10. I do not know how to import this data into civils 3D and carryout an adjustment to the levels to so my survey closes. I have been trying for the past 2 days with no luck, can anyone please help.

    If some can enter this data into autocad civils 3d email me the file but more importantly explain how its done then that would be great.

    The autocad civils 3d tutorials do not help me as I cannot get autocad to realize which points are Backsights (BS), Foresights(FS) etc. Its driving me insane.

    I have attached my survey data so that you can read it clearly.

    Thanks.
    Attached Files

  2. #2
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    Default

    I could only comment on the survey data, and if I got such a level difference on closing, I would go out and re-take the levels. It might be something as simple as mis-reading the level staff.

  3. #3
    Full Member dirtlegg's Avatar
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    get the surveyor's companion from Eaglepoint...makes this and all surveyors computations very easy...
    P. Todd Hendricks, PLS
    David See Surveyors

    www.GEOmetronics.com

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