training - 📸 Land Surveying Photos - Land Surveyors United - Global Surveying Community
2024-03-28T23:23:15Z
https://landsurveyorsunited.com/photo/feed/tag/training
Starting 'em young!
https://landsurveyorsunited.com/photo/starting-em-young
2019-01-16T18:12:02.000Z
2019-01-16T18:12:02.000Z
Dennis W. Layton
https://landsurveyorsunited.com/surveyors/DennisWLayton
<div><img src="https://storage.ning.com/topology/rest/1.0/file/get/1206296509?profile=RESIZE_400x&width=400"></div><div><p>2010 - My son Christopher learning how to turn angles and measure distances.</p>
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Engineering Intern Instruction
https://landsurveyorsunited.com/photo/engineering-intern-instruction
2017-01-07T01:55:54.000Z
2017-01-07T01:55:54.000Z
Clif Clark
https://landsurveyorsunited.com/surveyors/ClifClark
<div><img src="https://storage.ning.com/topology/rest/1.0/file/get/1206270655?profile=RESIZE_400x&width=400"></div><div>What am I looking at?</div>
Tutorial Using CORS
https://landsurveyorsunited.com/photo/cors-bpn
2014-05-31T21:48:49.000Z
2014-05-31T21:48:49.000Z
Ageng Taruna Wahono
https://landsurveyorsunited.com/surveyors/AgengTarunaWahono
<div><img src="https://storage.ning.com/topology/rest/1.0/file/get/1206203761?profile=RESIZE_400x&width=400"></div><div>First Time To Using Cors in Sebesi Island for IP4T Activity on that Island.</div>
a student learning to measure distances accurately
https://landsurveyorsunited.com/photo/a-student-learning-to-measure-distances-accurately
2013-12-25T00:30:23.000Z
2013-12-25T00:30:23.000Z
nathaniel quarshie
https://landsurveyorsunited.com/surveyors/nathanielquarshie
<div><img src="https://storage.ning.com/topology/rest/1.0/file/get/1206187299?profile=RESIZE_400x&width=400"></div><div>for theodolite traversing</div>
Surveying Mathematics Made Simple eBooks
https://landsurveyorsunited.com/photo/surveying-mathematics-made-simple-ebooks
2013-07-20T19:58:08.000Z
2013-07-20T19:58:08.000Z
Jim Crume P.L.S., M.S., CFedS
https://landsurveyorsunited.com/surveyors/JimCrumePLSMSCFedS
<div><img src="https://storage.ning.com/topology/rest/1.0/file/get/1206171042?profile=RESIZE_400x&width=400"></div><div>A New Math-Series of eBooks with useful formulas and helpful hints with easy to follow step by step instructions. Ranging from $2.99 to $4.99. <a rel="nofollow" href="http://www.cc4w.net/ebooks.html">www.cc4w.net/ebooks.html</a></div>
Training Surveyors
https://landsurveyorsunited.com/photo/training-surveyors
2013-06-18T07:49:00.000Z
2013-06-18T07:49:00.000Z
Id Omar
https://landsurveyorsunited.com/surveyors/IdOmar
<div><img src="https://storage.ning.com/topology/rest/1.0/file/get/1206166951?profile=RESIZE_400x&width=400"></div><div>Training for use Total Station SOUTH</div>
GPS training - mounting the base
https://landsurveyorsunited.com/photo/gps-training-mounting-the-base
2013-06-04T19:17:59.000Z
2013-06-04T19:17:59.000Z
Marian Miraute
https://landsurveyorsunited.com/surveyors/MIRAUTEMARIAN
<div><img src="https://storage.ning.com/topology/rest/1.0/file/get/1206164347?profile=RESIZE_400x&width=400"></div><div>GPS training - mounting the base</div>
training
https://landsurveyorsunited.com/photo/training
2013-03-09T07:56:31.000Z
2013-03-09T07:56:31.000Z
Taras Karpyshyn
https://landsurveyorsunited.com/surveyors/TarasKarpyshyn
<div><img src="https://storage.ning.com/topology/rest/1.0/file/get/1206143167?profile=RESIZE_400x&width=400"></div><div>training</div>
possible instrument errors
https://landsurveyorsunited.com/photo/possible-instrument-errors
2012-04-29T02:35:28.000Z
2012-04-29T02:35:28.000Z
SurveyEarthinaDay
https://landsurveyorsunited.com/surveyors/SurveyEarthinaDay
<div><img src="https://storage.ning.com/topology/rest/1.0/file/get/1206091445?profile=RESIZE_400x&width=400"></div><div>Ideally, the total station should meet the following requirements: a) Line of sight ZZ perpen- dicular to tilting axis KK b) Tilting axis KK perpen- dicular to vertical axis VV c) Vertical axis VV strictly vertical d) Vertical-circle reading precisely zero at the zenith If these conditions are not met, the following terms are used to describe the particular errors: a) Line-of-sight error, or colli- mation error c (deviation from the right angle bet- ween the line of sight and the tilting axis) b) Tilting-axis error a (devia- tion from the right angle between the tilting axis and the vertical axis) c) Vertical-axis tilt (angle between plumb line and vertical axis.
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two peg test inspecting line of sight
https://landsurveyorsunited.com/photo/two-peg-test-inspecting-line-of-sight
2012-04-29T02:35:26.000Z
2012-04-29T02:35:26.000Z
SurveyEarthinaDay
https://landsurveyorsunited.com/surveyors/SurveyEarthinaDay
<div><img src="https://storage.ning.com/topology/rest/1.0/file/get/1206091473?profile=RESIZE_400x&width=400"></div><div>In new levels, the com- pensator has been adjusted at room temperature, so that the line of sight is hori- zontal even if the instru- ment is tilted slightly. This situation changes if the temperature fluctuates by more than ten or fifteen degrees, after a long jour- ney, or if the instrument is subjected to strong vibra- tion. It is then advisable to inspect the line of sight, particularly if more than one target distance is being used. 1. In flat terrain, set up two staffs not more than 30 metres apart. 2. Set up the instrument so that it is equidistant from the two staffs (it is enough to pace out the distance) 3. Read off from both staffs and calculate the height difference (illustration above). Staff reading A = 1.549 Staff reading B = 1.404 ∆H = A – B = 0.145 4. Set up the instrument about one metre in front of staff A and take the staff reading (illustration below). Staff reading A = 1.496 5. Calculate the required reading B: Staff reading A = 1.496 - ∆H = 0.145 Required reading B = 1.351 6. Take the staff reading B. If it differs from the required reading by more than 3mm, adjust the line of sight (refer to instruction manual).
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line leveling explained
https://landsurveyorsunited.com/photo/line-leveling-explained
2012-04-29T02:35:26.000Z
2012-04-29T02:35:26.000Z
SurveyEarthinaDay
https://landsurveyorsunited.com/surveyors/SurveyEarthinaDay
<div><img src="https://storage.ning.com/topology/rest/1.0/file/get/1206091528?profile=RESIZE_400x&width=400"></div><div>In an excavation, a point B is to be set out at a height ∆H = 1.00 metre below street level (Point A). If the points A and B are widely separated, the height difference between them is determined by line levelling with target distances generally between 30 and 50 metres. Pace out the distances between the instrument and the two staffs; they need to be about the same. 1. Set up the instrument at S1. 2. Set up the staff precisely vertically at point B; read off and record the height (backsight R). 3. Set up the staff at the turning point 1 (ground plate or prominent ground point); read off and record the height (foresight V). 4. Set up the instrument at S2 (the staff remains at the turning point 1). 5. Carefully rotate the staff at the turning point 1 so that it faces the instrument. 6. Read off the backsight and continue. The height difference between A and B is equal to the sum of the backsight and the foresight.
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height difference between two points
https://landsurveyorsunited.com/photo/height-difference-between-two-points
2012-04-29T02:35:25.000Z
2012-04-29T02:35:25.000Z
SurveyEarthinaDay
https://landsurveyorsunited.com/surveyors/SurveyEarthinaDay
<div><img src="https://storage.ning.com/topology/rest/1.0/file/get/1206091451?profile=RESIZE_400x&width=400"></div><div>The height difference is calculated from the difference between the two staff readings for the points A and B respectively.
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staking out point heights
https://landsurveyorsunited.com/photo/staking-out-point-heights
2012-04-29T02:35:24.000Z
2012-04-29T02:35:24.000Z
SurveyEarthinaDay
https://landsurveyorsunited.com/surveyors/SurveyEarthinaDay
<div><img src="https://storage.ning.com/topology/rest/1.0/file/get/1206091560?profile=RESIZE_400x&width=400"></div><div>1. Set up the level so that the sighting distances to A and B are about the same. 2. Set up the staff at A and read off the backsight R = 1.305. 3. Set up the staff at B and read off the foresight V = 2.520. The difference h from the required height at B is calculated as: h = V – R - ∆H = 2.520 – 1.305 – 1.00 = +0.215m 4. Drive in a post at B and mark the required height (0.215m above ground level). In another frequently-used method, the required staff reading is calculated in advance: V= R - ∆H = 1.305 - (-1.000) = 2.305 The levelling staff is then moved upwards or down- wards until the required value can be read off with the level.
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polar method surveying
https://landsurveyorsunited.com/photo/polar-method-surveying
2012-04-29T02:35:23.000Z
2012-04-29T02:35:23.000Z
SurveyEarthinaDay
https://landsurveyorsunited.com/surveyors/SurveyEarthinaDay
<div><img src="https://storage.ning.com/topology/rest/1.0/file/get/1206091479?profile=RESIZE_400x&width=400"></div><div>To create e.g. a location plan, the position and height of a point on the object are determined by measuring angles and distances. To do this, the instrument is set up on any prominent point in a local coordinate system. A second prominent point is selected for the purposes of orientation; after this has been targeted the horizontal circle is set to zero (refer to the user manual). If a coordinate system already exists, set up the instrument on a known point within it and line up the horizontal circle with a second known point (refer to the user manual).
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plumbing down from a height point
https://landsurveyorsunited.com/photo/plumbing-down-from-a-height-point
2012-04-29T02:35:22.000Z
2012-04-29T02:35:22.000Z
SurveyEarthinaDay
https://landsurveyorsunited.com/surveyors/SurveyEarthinaDay
<div><img src="https://storage.ning.com/topology/rest/1.0/file/get/1206091526?profile=RESIZE_400x&width=400"></div><div>Plumbing down from a height point, plumbing up from a ground point, and inspecting a vertical line on a structure, can be carried out exactly in just one tele- scope face, but only if the telescope describes a pre- cisely-vertical plane when it is tilted. To ascertain that this is so, proceed as follows: 1. Target a high point A, then tilt the telescope downwards and mark the ground point B. 2. Transit the telescope, and repeat the procedure in the second face. Mark the point C. The mid-point between the points B and C is the exact plumbing point. The reason why these two points do not coincide can be a tilting-axis error and/or an inclined vertical axis. For work of this type, make sure that the total station has been levelled up pre- cisely, so that the influence of vertical-axis tilt on steep sights is minimized.
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Foggy Surveying
https://landsurveyorsunited.com/photo/dsc02329
2011-07-16T04:24:39.000Z
2011-07-16T04:24:39.000Z
Pedro
https://landsurveyorsunited.com/surveyors/Pedro
<div><img src="https://storage.ning.com/topology/rest/1.0/file/get/1198965032?profile=RESIZE_400x&width=400"></div><div>Surveyors in the Fog</div>
Surveyors Assistant in Training
https://landsurveyorsunited.com/photo/surveyors-assistant-in
2009-07-08T03:20:53.000Z
2009-07-08T03:20:53.000Z
Juan Antonio Gutierrez Tovar
https://landsurveyorsunited.com/surveyors/JuanAntonioGutierrezTovar
<div><img src="https://storage.ning.com/topology/rest/1.0/file/get/1198890649?profile=RESIZE_400x&width=400"></div><div>Control de topografia en obra de camino de acceso, rÃo Santiago, Jalisco, México.</div>