To set out predefined positions

Set out positions typically define bolt holes or drill hole locations within a tunnel. They are defined by station and offset values and a method. See Set out position requirements.

When setting out positions, the software attempts to navigate you to the defined position. Often this is not possible and the software instead calculates a position on the tunnel surface that is projected from the selected station. The location of this position depends on the method used to define the set out position.

  1. Start a survey.
  2. Tap and select Survey / Set out.
  3. Select the tunnel file. Tap Accept.

  4. In the Set out type field, select the type of positions to set out.

    Only positions of the type selected in the Set out type field will be shown in the cross section view and can be set out. This allows you to use a single TXL file for all set out positions, and then set out only one type of position at a time. To view all positions in the cross section view, choose All from the Set out type field.

  5. Define the station you want to set out:

    1. To define the Station, you can:

      • Key in the station value.
      • Tap and select List and then select one of the design station values from the TXL file.

      • Tap inside the Station field and then turn the instrument to the tunnel face or a prism and tap Measure to calculate the current station value.

        If you are using a Trimble SX10 or SX12 scanning total station, tap in the map toolbar to view the video feed and then tap the location in the video (for example the prism or tunnel wall). The instrument automatically turns to the selected location.

    2. Enter the Station interval used to determine subsequent station values. Tap and make sure that the correct interval method is selected:

      • The 0 based method is the default method and gives station values that are multiples of the station interval. For example, if the start station is 2.50 and the station interval is 1.00, the 0 based method produces stations at 2.50, 3.00, 4.00, 5.00, and so on.
      • The Relative method gives station values relative to the start station. For example, if the start station is 2.50 and the station interval is 1.00, the Relative method produces stations at 2.50, 3.50, 4.50, 5.50, and so on.
  6. Tap Next. The cross section view of the selected station is shown.

  7. In the cross section view, select the position to set out. To automate the set out of multiple set out positions, tap and hold in the cross section view and then select Select all.

  8. Set out the selected position:
    1. Tap Auto to set out the selected position.

    2. When prompted, configure the Set out settings. Tap Accept.

    3. When prompted, configure the Set out tolerances. Tap Accept.

      The instrument automatically turns to the selected position by an iterative process indicated by the progress bar at the top left of the screen. If you have chosen Select all to set out multiple set out positions, the instrument turns to the first defined set out position.

    4. When the position is found you are instructed to mark the point indicated by the laser on the tunnel surface.

      When using a Trimble SX12 scanning total station in TRK mode with the laser pointer enabled, the Stakeout screen shows the Mark point softkey instead of the Measure softkey. Tap Mark point to put the instrument into STD mode. The laser pointer stops flashing and moves to position itself at the EDM location. When you tap Accept to store the point, the instrument automatically returns to TRK mode and the laser pointer resumes flashing. To remeasure and update the stakeout deltas, tap Measure after you tap Mark point and before you tap Accept.

      If you are using an instrument equipped with a high-power laser pointer, tap 3R Laser to enable the high-power laser pointer and then tap Measure to measure the position.

      If you are using an instrument that is not equipped with a laser pointer, the point is not indicated on the tunnel surface. To mark the tunnel surface, tapand select Video from the Return to list (the Video screen must already be open). Use the inner crosshair in the Video screen as a guide to mark the position on the tunnel surface. (Do not use the outer crosshair as it is less precise.) To return to the Set out screen, tapand select Set out. from the Return to list. Alternatively, tap to add the Video and Set out screens to your Favorites list.

    5. If you are setting out multiple set out positions, when a position is found within tolerance, the Mark point event sounds and:

      • If the instrument has a tracklight, the laser pointer and the tracklight flash for the period defined in the Mark delay field.
      • If the instrument is a Trimble SX12 scanning total station, the laser pointer changes to solid and the Target Illumination light (TIL) flashes for the period defined in the Mark delay field.

      At the end of the Mark delay period the instrument turns to the next set out position and so on until all set out positions have been set out.

    If the position cannot be found within the position tolerance, the software shows Failed above the delta display. If you are setting out multiple set out positions, the software skips the position and moves to the next set out position. Specify Start delay and Mark delay values in the Settings screen.

    To manually locate the set out position, use the Turn softkey to point the instrument at the selected set out position and then fine-tune the position manually.

    Information on the current position and its relationship to the selected set out position appears at the bottom of the screen. See Current position information.

  9. Tap Store. The stored position is indicated by a solid black circle.
  10. To exit the plan view, tap Esc.