Land Surveyor Forum

Replies

  • Student Surveyor
    Kilanko Timileyin March 22, 2017 at 10:25pm
    Woow...Thanks to you sir
  • Land Surveyor
    J. Anthony Cavell March 22, 2017 at 4:15pm

    Dear Mr. Timileyin,

    I must assume your baseline will control the rest of your operation. Bearing in mind all that depends upon that line, it should be executed with high precision related to the quality of the operation.

    If the rest of the operation is about moving dirt (1/10' or 3cm), then do what is needed to approach 1cm precision on the baseline. If the project requires more precision, try to exceed what is needed by an order of magnitude or to the best you and your equipment can achieve.

    The precautions are not complex but require discipline. Simply avoid human errors in the result and account for all systematic error you can.

    Are your tripods stable?

    Are your level vials adjusted?

    Have your instruments been calibrated recently?

    Do you know the offsets for your prisms? Are you sure??

    Are the marks you leave behind out of harm's way? Guarded?

    Did you leave enough redundant marks to make re-setting possible?

    Assuming veritical in involved, do you have a couple of far off-line BM's for adjustment?

    Best wishes,

    JAC

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