Show us why the public should always call a land surveyor

Where are you surveying?

Land Surveyor


I am on a job site where I am building a facility.

I have to layout pile, anchor bolt and check the pipe rack column to see if is vertical.

Is someone can tell me what will be the best procedure using Trimble Vx Robotic Total Station on the field to check column verticality and produce a QA/QC reportĀ  showing the deviation (mm)?

I never done this before (producing a QA/QC reportĀ  showing the deviation or Tilt calculation) Is someone can help me on that?

Thank's in advanceĀ Ā 


You need to be a member of Land Surveyors United - Global Surveying Community to add thoughts!

Join Land Surveyors United - Global Surveying Community

Votes: 0
Email me when people reply –


  • Survey Legend

    Take the reading of the steel tape through the telescope. Take the readings of two positions at the same level on both top and bottom levels of the formwork. By taking two readings at the same level any curvature on the surface can be identified.

    • Land Surveyor

      Thank you for your time. The probleme here is the reading at the TOP how did i get to the TOP to take my reading?

      I have the same idea is to take two shot on the column one shot at the Bottom and another at the Top at each shot i will take the Vertical Angle and the Slope Distance

      So I will have two rectangles triangle to solve and Calcs two Horizontal Distance (DH) that I will compare. IfĀ  DH1 = DH2 at +/- 3mm this mean the column is vertical...

      • Student Surveyor Not a Surveyor

        Solving those triangles for distance will tell you if the column is vertical in only ONE direction, forward and away from the robot. To check the vertical, left and right, you need to sight the vertical crosshair on one side of the column and turn direct and reverse horizontal angles down low and then up high.If all 4 angles are equal then the column is vertical, left and right, from the robot.

This reply was deleted.

Answer As your Facebook Page

Global Surveyor Forum

Latest Discussions by Category

How to Utilize Surveyor Forums

How to use Forums
Our forums on Land Surveyors United are here to be used as much for finding help with problems in the field as the are for you to express your opinions on anything that has to do with land surveying in general. Feel free to share anything that is on your mind, as long as it isn't meant to damage another member's reputation. Please keep it clean and help insure that everyone has the opportunity to enjoy the benefits of being part of a community that grows together.

We are committed to allowing freedom of expression for all of our members, and that includes maintaining a safe space for people with opposing views to express themselves. We get posts from all over the country and even the globe, so needless to say, people come with different viewpoints on lad surveying practices and processes. We see this diversity and variety as a real strength-- dialogue and debate are an integral part of the educational process, as well as an important tool in exploring different sides of complex issues.

All Community Hubs inside the community have their own forum for asking specific questions to other surveyors, by location, equipment type, etc.

Topics by Tags

Monthly Archives

Global Forums

Add Your Expertise

šŸŒ Explore Forums Based on Location

Blog Topics by Tags

Monthly Archives