In: Civil Engineering
A surveyor completes a levelling circuit from a known
BM at point A (RL = 37.730...
- A surveyor completes a levelling circuit from a known
BM at point A (RL = 37.730 m). At the end of the survey, the
surveyor finds out that the rod person moved the graduated staff
before a BS value was taken at the third change point. The levels
obtained are as follows:
1.857 (RL =
37.567 m), (0.983, 0.354), 0.571, 1.011, 2.151, (1.124,
x), 0.890, (0.543, 3.178), 3.808.
- Assuming that the misclosure for the level circuit is
0.000 m, find the probable value of the missing BS value
x.
- Is the value of x in part (a) acceptable?
Explain. (1 mark)
Book the levels, including the value of x
calculated in part (a) using the HPC method and show all arithmetic
checks. (1 mark