Surveying
El t Elementary Surveying Su ey g - Mindthreshold
El t Elementary Surveying Su ey g - Mindthreshold
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Combined corrections (problem)• A line was measured to be 2582.35 m using a 30‐msteel tape supported throughout its length under a pullof 4 kg. The mean temperature during themeasurement is 35 o C. The tape used has a crosssectionalarea of 0.03 square centimeters and has astandard length at 20 o C under a pull of 5 kg. Themodulus of elasticity of the tape is 2 x 10 6 kg/cm 2 andthe coefficient of thermal expansion is 0.0000116/ o C.– Determine the error due to temperature change– Determine the error due to tension– Determine the corrected length of the linePrepared by: Andre‐Paul C. Ampong 21
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