Levelling Problem No 9 - Fly Levelling Missing Values Calculation ( Rising Ground )
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Levelling Problem No 9 - Fly Levelling Missing Values Calculation ( Rising Ground )
7 854 просмотра · 2 года назад
Stan Academy
51,6 тыс. подписчиков
7 854 просмотра · 2 года назад
During Fly levelling, the following notes are taken
Back Sights 0.620 2.050 1.420 2.630 2.420
Fore Sights 2.440 1.350 0.530 2.410
The first back sight was taken on a benchmark of reduced level 100.00 meters. From the last backsight it is required to set 4 pegs each at the distance of 30 meters on a rising gradient of 1 in 200.
Find the following
(i) Reduced levels using rise and fall method
(ii) Determine the staff readings on the pegs
(iii) Apply the arithmetic check.