"I used a similar method many years ago. The plexiglass had a cross scored into the surface from edge to edge so that reference marks can be made on the floor so that it can be repositioned later in the same place.
As for plumbing up, just remember…"
"The column is 8m, the box is a shutter for the concrete to pour the colmn, but they dont have a single box to pour the entire column in a single go. They have a box only 6.4m long, which will be the first pour of the column. Once this has set, the…"
"I have read a few of the links, no one seems to mention an optical plummet.
A specialised piece of equipment for transferring points vertically, something like a Wild ZL or NL. (Ask uncle google)
I used one on 28 story building to establish control…"
"I cannot believe that in the US they are so backwards about UG mining. I am a New Zealander living in South Africa, where mining is a large sector of the economy and if you tried to get any surveyor to use mechanical methods they would laugh…"
Introduction to other Surveyors. One or more sentence Bio about your Relationship with Surveying
I am qualified as a Land Surveyor in New Zealand, spent 8 years in the UK working in the Building construction field. Then in South Africa since 2009 doing cadastral and construction surveying. Now back in good old NZ
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