CIVE2004Oct2017.pdf - Surveying Applica0ons in Civil...

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Surveying Applica0ons in Civil Engineering JJ Salinas Dept. of Civil & Env. Eng. Carleton University 1
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Surveying Art and science of taking measurements to determine the posi0on of objects : on , below , or above the surface of the Earth. Topography Geoma0cs Cra+ Skill Systema2c Organized Knowledge Points Lines Surfaces Land Surveying Mining Tunnels Bathigraphic Satellites 2D, 3D Flat, Curved Sphere Ellipsoid 2
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What? Why? How? Who? Distance, Angle, Coordinates Calculate length, area, volume Instruments, techniques, procedures Eng., Tech., Professional, Specialist 3
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What? Distance, Angle, Coordinates d 1 d P a 1 a 2 d 2 x y 4
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Area of Uncertainty Reliability à Size Sensi0vity à Shape Best Avoid Accuracy and Precision Known (Two Distances) 5
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Area of Uncertainty Reliability à Size Sensi0vity à Shape Best Avoid Accuracy and Precision Known (Two Angles) 6
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Area of Uncertainty Reliability à Size Sensi0vity à Shape Best Avoid Accuracy and Precision Known (Angle +Distance) 7
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8 Surveying Idea Calcula0ons Drawing Surveying Actual Object Layout As Built
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9 Geometry B A C B' C' Terrain Horizontal Plane • Distance between points – Slope (Along the ground) – Horizontal (Projec0on on to Horizontal plane) – Ver0cal (Eleva0on)
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10 Measurements Distances Angles B C A Elements Points Lines Planes Horizontal Slope Vertical Horizontal Vertical
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11 Geometry of Distance Measurement SD = AB = Slope Distance HD = AB' = Horizontal Distance VD = BB' = Vertical Distance VA = BAB' = Vertical Angle Grade of Line AB = A B B' SD HD VD VA Ground 90 o VD HD × 100
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Surveying in Engineering Eleva0on Grade Contours Engineer’s Level Total Sta0on Distance Horizontal Ver0cal Slope Pacing Tape EDM Angles Transit Compass Total Sta0on Tape 12
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  • Fall '13
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  • Surveying, Distance, Total Sta0on, Sensi0vity à Shape, Reliability à Size

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