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Buildsum: Develop a section from Contour Lines
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Develop a section from Contour Lines
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So now that we know what Contour Lines are how can we use
them to get an accurate picture of the site that we are working
on.
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The first thing that you need to do is select the area of the site
that you want to create a section of and draw a line through that
area on the Site Plan .
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Then below the Site Plan draw a Base Line, this line should be
given the R.L. of the lowest point on your site.
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Now wherever the first line you drew intersects with a Contour
Line develop a line straight down the page to the Base Line.
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For the Vertical axis of your section you will need to draw in
Horizontal lines to represent the Contour Lines R.L.s on the
Plan.
42 have us in circles
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So now we need to draw in the slope of the ground. The line that I have drawn on the site plan starts approximately
halfway between the 11.428 and the 11.928 Contour Line so on the Section we can start half way between the 11.428
and the 11.928 horizontal lines.
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1/10/2019
Buildsum: Develop a section from Contour Lines
Now all you
need to do
is connect
the
intersecting
lines on the
Section
View where
the vertical
line crosses
the
horizontal
line with the
corresponding R.L. on the Site Plan.
For the last point you will again have to estimate where it will end.
What you end up with is a section view of what your block of
land looks like along the line that you selected at the start.
This is particularly handy if if you need to calculate the amount
of excavation along a trench or pipe line.
Posted by John Bridges at 8:18:00 PM
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