Rock Bolt Analysis - Placing Individual Rock Bolts

The Rock bolt analysis comprises a suite of tools that allow you to locate and report on rock bolts in underground scans.

  • Use the Rock Bolt Detection tool to automatically locate rock bolts on scans.
  • The Verify Bolts tool can be used to check the results and remove any false positives from the automated process.
  • The Place Rock Bolt tool is a smart tool that helps you quickly place individual rock bolts on the scan. This is particularly useful to add in any rock bolts that were missed in the automated process.
  • Once you are satisfied with the rock bolt set, use the Rock Bolt Report to generate a PDF report that visually and numerically summarises the distribution of rock bolts.

This is the semi automatic way of locating rock bolts and is used to identify rock bolts that were missed by the Verify Bolts tool.

The reason why a rock bolt would be missed by the scanner is because the line of sight may have been obstructed by other objects or a part of the wall / rock protruding enough so it breaks the line of sight / laser beam.

For creating rock bolts use the Place Rock Bolts tool (which also can be used instead of) the automatic Rock Bolt Detection tool.

  1. On the Query ribbon tab navigate to the Rock Bolts group and select Place Rock Bolts.

    1. Choose a rock bolt type to place or as previously mentioned Manage... allows to create custom rock bolts.
    2. Select Reverse direction if you have a non single scan origins and the inside of the tunnel cannot be distinguished from the outside of the tunnel making the rock bolts look like they are facing the wrong direction.
    3. Left mouse button click on the tunnel scan .
    4. The scan will be analysed and a low resolution scan will be created.

Hint: Zoom in to easily analyse the surface.

In the above example the different coloured bolts were set up as follows:

  • Orange bolt - your bolt that is unspecified.
  • Green Bolt - a potential bolt location has been found.
  • Red Bolt - when it turns red it means it has found a definite bolt location.
  • Blue Bolt - represents a rock bolt.
  • Brown Bolt - represents a split set bolt.
  • Purple Bolt - represents a cable bolt.

The cursor now carries an orange bolt which is manoeuvrable by the mouse.

  1. Manoeuvre the mouse around the scan and locate the missing rock bolts.

    1. Your rock bolt will turn green when a potential spot is found the bolt

    2. Left Mouse Button click and to anchor the bolt, it's colour will change to red.

    3. Move the cursor away and the rock bolt it will be identified by the colour set out in the Bolt type options.

    4. Repeat steps from 4 to 6 until the whole tunnel has been analysed.

 
  Orange bolt is manoeuvred by the mouse while looking for missed bolts. Orange bolt will snap to a potential rock bolt location and turn green. LMBClosed Left Mouse Button click to acknowledge the position as a rock bolt (rock bolt turns red).

When the cursor is moved away from the rock bolt it will be identified by the colour set out in the bolt type options.

Removing incorrectly placed rock bolts:

  1. Snap your orange bolt to the unwanted bolt, (turns red).

  2. Left Mouse Button click the bolt, (turns green again).

  3. Move cursor away, (rock bolt is removed).