2-tacheometry-leveling - STADIA LEVELING \u2022 Similar to differential leveling \u2022 Except that the line of sight may be inclined from the horizontal

# 2-tacheometry-leveling - STADIA LEVELING u2022 Similar...

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STADIA LEVELING • Similar to differential leveling Similar to differential leveling Except that the line of sight may be inclined from the horizontal Well-suited in rolling or hilly country
Sample Problem • Complete the stadia level notes shown Complete the stadia level notes shown below and perform arithmetic check. Assume that K=100 and C=0 Assume that K 100 and C 0.
Sample Problem Sample Problem sta Backsight Foresight DE (m) Elev (m) ( ) RR VD ( ) RR VD (m) (m) s (m) α RR (m) VD (m) s (m) α RR (m) VD (m) BM1 1.245 -4°25’ 2.42 75.0 TP1 2.044 3°20’ 1.08 1.515 8°18’ 1.55 BM2 1.438 -3°25’ 3.06
Backsight Foresight DE Elev sta (m) (m) s (m) α RR (m) VD (m) s (m) α RR (m) VD (m) BM1 1.245 -4°25’ 2.42 9.56 75.0 TP1 2.044 3°20’ 1.08 11.86 1.515 8°18’ 1.55 21.64 32.07 107.07 BM2 1 438 -3°25’ 3 06 8 55 -22 39 84 68 1.438 -3 25 3.06 8.55 -22.39 84.68 FS FS BS BS RR VD VD RR DE ± ± = DE = 2 42 + 9 56 + 21 64 1 55 DE = 1 08 - 11 86 8 55 3 06 DE = 2.42 + 9.56 + 21.64 – 1.55 DE = 32.07 DE = 1.08 - 11.86 – 8.55 – 3.06 DE = -22.39
Backsight Foresight DE Elev sta (m) (m) s (m) α RR (m) VD (m) s (m) α RR (m) VD (m) BM1 1.245 -4°25’ 2.42 -9.56 75.0 TP1 2.044 3°20’ 1.08 11.86 1.515 8°18’ 1.55 21.64 32.07 107.07 BM2 1 438 -3°25’ 3 06 -8 55 -22 39 84 68 1.438 -3 25 3.06 -8.55 -22.39 84.68 FS FS BS BS RR VD VD RR DE + = DE = 2 42 (-9 56) + 21 64 1 55