Two Peg Test

This video gives an extremely clear explanation of how to carry out a two peg test and record the results correctly in your survey book.
It takes you through the full procedure, step- by- step, showing you exactly what staff readings to take, in what order, where you should write the number down and how to do the calculations and the checks.
Step 1: Put two pegs in the ground 60m apart, call them A and B. Step 2: Set up midway between the two points.
Step 3: Take a reading to A then B and calculate the difference
Step 4: Set up about 5m away from one and 55m away from the other
Step 5: Take the reading to B then A. Find the difference.
Step 6: The collimation error over 55m is the discrepancy between the two calculated differences
Step 7: Repeat steps 2 to 6. Both final answers should agree with each other. If not repeat steps 2 to 6 again.
If you would like to access similar videos for activities such as transferring a TBM, basic level survey, setting up profile boards as well as some total station basics you can get instant access to over 3.5 hours worth of content at setting-out-for...
#twopegtest #landsurveying #levelling #settingout #siteengineer #settingoutengineer #profileboards #batterrails #transferatbm #dumpylevel #totalstation

[@mondlimjoli2320]

thank you so much, I gained a lot on videos

[@1HealthyLiveDD]

Very good video,neatly explained

[@DucsManyage]

how do you know that the reduced level is 10.000

[@settingoutforconstruction7700]

You assume that it is 10.000. In theory you could choose any number, 100.000 or 46.521 if you wanted, and you would still get the same result. 10.000 is just a convenient figure. You can test it with a different starting number and the same staff readings and the error will be the same.

[@kumarbanjara7229]

remove the music man