Question #257337

A sloping distance is measured with a 30-m steel tape. The measurements made are 30.00 m on a 7 degrees’ slope; 26.37 m on a 15 degrees’ slope and 29.50 m on a 1:2 ½ slope (V:H). (use the approximate slope correction formula for gentle slopes) 1.1. What is the corrected horizontal distance in the first segment, in meter, (S1=30.00 m; slope is 30 degrees)?

Expert's answer

To calculate the slope, proceed as follows:

- along the axis of the slope, measure the difference in level AC between two marked points A and B
- measure the horizontal distance CB between points A and B
- calculate the slope S in percent as equal to

"S\\%= 100AC\\times CB"

to make your calculations easier:

- you can fix the horizontal distance CB at 100 m, which will give you S% = AC directly in metres;
- you can fix the horizontal distance CB at 10 minstead, which will give you S% = 10 AC in metres.

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