1. Upload Boretrak File and Select Boretrak Type
Strayos provides an option to upload two types of Boretrak files:
a) ASCII (.txt)
b) QPH files (.qph)
If you have files in CSV format, please contact Strayos support and we will convert your files to (.txt)
After boretrak files are successfully uploaded, a table will be shown to verify your boretrak data. You will have choose the type of boretrak by clicking on Cabled or Rodded to proceed to next step.
2. The next step is to Draw an AB line in the map and start boretraking process.
Click ‘Boretraking’ button to start drawing holes. Strayos will automatically count the remaining hole number for you. If the total hole number is different with what you expect, please check your boretrak file or contact Strayos customer support.
Boretrak equipment might allow the users to boretrak at different intervals. But at times, drillers and blasters are used to seeing reports for holes at every two feet/half meter intervals. This option allows the user to analyze and visualize data at every two feet/half meter without actually boretraking at those intervals.
Once the boretrak file is uploaded the user will be able to see the following option:
- Boretrak Every Two Feet (if user unit = 'Imperial')
- Boretrak Every Half Meter (if user unit = 'Metric')
On selecting the above option the app will ask the user to select between:
Modify Original Points:
Our algorithms calculate the bearing and inclination of each borehole from the given data and interpolate to add borepoints between the collar and the toe point at every two feet/half meter. This will modify the original borepoint data uploaded and add new borepoints while maintaining the bearing and inclination of the hole.
Keep Original Points:
Our algorithms calculate the bearing and inclination of the each borehole and add the additional points at every two feet/half meter between the given borepoints mentioned in the uploaded file. This keeps the original uploaded borepoints in place and adds interpolated points between them while maintaining the bearing and inclination of the hole.
3. Edit, Move, Delete Boretrak Holes
Strayos allows users to drag boretrak holes on the map. Selected hole will become yellow.
You can use ‘Flip Direction’ button to rotate boretrak direction with 180 degrees.
4. Run Burden Analysis
After clicking ‘Run burden analysis’ button, it’s time to select whether you want to modify borepoints. Strayos provides an automatic way to add borepoints every two units (If your current unit is meter, distance would be 0.5 m; If your current unit is imperial, distance would be 2 ft). When select "No, Modify Borepoints" in this case after running burden analysis, the hole distance became 2ft.
You can see the burden results in "Report" tab
5. Multiple Boretraks / Multiple Rows
Strayos provides multiple Boretraks functionality to users. With the old boretrak already saved, you can upload boretrak files again and draw boretrak holes. For eg: Below screenshot shows selection of multiple boretrak. First one is ‘rodded’ Boretrak type, which needs to draw AB line.
Two Boretraks are independent of operations and can run burden analysis at the same time. This time we select to keep the original borepoints. Burden details will be displayed separately after running burden analysis.
Q. Why does my boretrak have different hole numbers?
Ans: Strayos app follows two criteria to determine whether a row in boretrak files is the start of a hole: 1. Z value (third column of txt file, or 6th column of qph file) is larger than previous row. 2. Z value can be evenly divided by 10.
Check your boretrak file if the start row of every hole meets the above requirements, and if unexpected start row exists.
Q. Why is the length of boretrak holes are larger than expected?
Ans: Double check the unit of boretrak file. Note that only metric unit values will be accepted on Strayos platform, i.e. all values in boretrak file will be processed in metric unit.
Q. Cannot run Boretraking when uploaded custom boretrak files?
Ans: One of the reasons this can happen is if the uploaded boretrak file has details for 5 holes and user makes 6 clicks or more the app prevents the user from running any inaccurate burden analysis. The user should re-upload the file and run boretraking again with 5 clicks.
Q. Boretraks are not deviated in the correct direction for the rodded boretrak?
Ans: Strayos app adds a bearing of (Azimuth - 90) degrees to the the borehole data uploaded. The Azimuth is set by the AB Line the user will draw for the rodded boretrak and the azimuth is referenced from true north. Hence the user should adjust any offsets or probe settings used in the field when exporting/generating the boretak file.
Q. Why sometimes there might be a drastic difference between 2D and 3D burdens?
Ans: 2D burdens are measured from the points that are directly in front of the borepoint and 3D burdens are measured from the point that is closest to the borepoint. The point exactly in front of the borepoint that lies on tha face may or may not be the closest point to the borepoint. This sometimes can cause there to be a difference between the burden values.
Drones cannot look under the muckpiles or below the 3D models. Hence in cases as shown below there might not be a point, exactly in front of the borepoint due to absence of data points in the data captured.
For e.g.: A muckpile present in front of the face covers the bottom part of the face
Since no data points are present for the borepoints below the level where muckpile starts, the 2D burden give out the furthermost saturated value thus resulting in the big difference between 2D and 3D burdens.
Q. Boreholes in the burden report look a lot more deviated than they should be
Ans: Boreholes and Hole profiles drawn in burden reports are 2D projections of the points on the 3D model. When projecting from 3D to 2D the scaling results in flattening of the 3D drawings, thus making the hole deviations appear a little extrapolated. This does not affect the burden calculations or the accuracy in any way.
Q. What is Rodded boretrak option? How is rodded boretrak set? What deviations are set for rodded boretrak?
Rodded boretrak helps the user measure the precise borepoint location by adding an offset to the hole deviation, measured referenced from the true north. It can be used for both up-hole and down-hole applications.
Select the "Rodded" boretrak type once the boretrak file is uploaded.
This AB Line sets the Azimuth for the boretrak rotations based on the true north. User should make sure that the red arrow in the center of the AB Line indicates the correct blast direction.
The bearing added to the boreholes = Azimuth - 90 degrees
Q. What is Cabled Boretrak option?
Cabled boretrak helps the users obtain precise positioning of boreholes and each borepoint for down-hole applications.
Once the boretrak file is uploaded, select "Cabled" Boretrak type