Engineering, 05.06.2021 06:20 nicoleamor
Setout is required to start excavation of a new incline. To start it is necessary to
calculate the intersection points on the centreline of two existing parallel drives, A and
B. You have two existing stations located on the centreline of the existing drives with
the co-ordinates shown below.
BS250 in A
Easting
1130.271
Northing
6178.452
RL
2061.666
BS451 in B
Easting
1378.44
Northing
6147.16
RL
2022.5
The centreline of drive A has a bearing of 45°10' and a grade of -1:150 in that
direction. The centreline of drive B has a bearing of 45°10' and a grade of 1:75 in that
direction.
The new incline has a bearing of 357°21'. These are shown in the figure below.
Calculate the three dimensional co-ordinates for the centreline intersection points that
give a grade for the incline of 1:8.
Answers: 3
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Setout is required to start excavation of a new incline. To start it is necessary to
calculate the...
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