Create volume surfaces and run cut and fill volumes analysis using the Volume Dashboard.
Transcript
00:04
Civil 3d surfaces can be used to calculate
00:06
volumes of cut and fill between two surfaces.
00:10
Generally, this is between a design surface
00:13
and an existing ground surface.
00:16
We can create a tin volume surface using the surface creation tools
00:21
and set our base and comparison surfaces.
00:24
However, we often need to assess multiple design services. At the same time.
00:29
The volumes dashboard on the analyze ribbon tab
00:32
allows us to do this.
00:35
We will want to adjust our surfaces to optimize the amounts of cut and fill
00:40
while still maintaining our design standards.
00:44
We can edit the road profiles used in our corridor models
00:47
and update the volume surfaces automatically.
00:52
The start of sycamore heights is controlled
00:54
by our intersection with Mcallister Boulevard.
00:58
We will need to set this to rebuild whenever a design change is made.
01:04
Select the intersection in Prospector,
01:06
right, click and select update regions automatically
01:10
choose, continue with update.
01:12
When the warning is displayed,
01:15
the intersection will be rebuilt.
01:20
Next, select the Sycamore Heights Corridor in Prospector,
01:24
right. Click on it
01:25
and select rebuild. Automatic.
01:28
Both the intersection and the corridor
01:31
will now rebuild when they need to
01:35
from the analyze ribbon tab on the volumes and materials panel
01:39
open the volumes dashboard
01:43
in the volumes dashboard, the panel on the left will show the total site volume
01:48
to turn this on. Click on the toggle net graph button on the top left of the dashboard.
01:55
Now we'll create a volume surface for the road.
01:59
Click on the create new volume surface button as shown
02:05
for the name
02:06
use vol to sycamore heights datum
02:13
set the style to cut and fill banding. One for interval
02:16
two D.
02:19
The base surface is always the existing surface. In our case, existing ground,
02:26
the comparison surface is always the design surface.
02:30
This will be sycamore heights, datum surface
02:34
click OK. And the volume surface will be added to the volumes dashboard.
02:39
It has calculated a net volume of nearly 12,000 cubic yards of cut.
02:45
This means that our profile for the road is generally too low.
02:51
If you pick the profile, you can see the two crests curves are very close together
02:56
to be able to adjust the profile. We will need to reduce the lengths of these curves,
03:02
use the grips on the curves to make them both shorter. As shown.
03:07
This will provide some space between the curves for them to move freely
03:14
at the start of the profile. You can see the change of grade at the intersection.
03:18
If we alter the first grade on sycamore heights,
03:21
there is a possibility that the dynamic intersection will add a new tangent.
03:28
We want to avoid this. So review the rules for the intersection,
03:33
right, click on the intersection in prospector
03:36
and select a just side road profile.
03:39
The rules show that the maximum grade into the intersection is five per cent
03:44
and the maximum change in grade is 4%
03:48
since the cross fall on the main road is at minus 1.94%.
03:52
This allows us a maximum grade of 2.06% on the incoming tangent.
03:60
Right. Click on the profile and select edit profile geometry
04:05
on the profile out tools
04:07
open the profile grid view
04:11
in the grid view, set the grade of the tangent in the grade out column
04:15
to 2.05 per cent as shown.
04:21
Since we know we can't raise that tangent or its intersection point,
04:25
then we must use the PV I of the second curve to adjust our volumes
04:32
using the grips on the profile,
04:34
pick the PV I grip and drag it up
04:39
after the corridor has rebuilt.
04:41
Go back to the volumes dashboard
04:43
by switching tabs in the Panorama viewer
04:47
use the recompute volumes button to refresh the volume surface.
04:54
I still have a net cut of 1963 cubic yards.
05:00
You'll have different values depending on the edits you've made,
05:05
you can repeat the adjustment to the profile to
05:07
reduce the net volume as much as you can.
05:11
I'm going to edit the profile again
05:13
and then go back to the profile grid view.
05:17
I want to reset the K value of the curve. I've changed back to 151
05:25
close the profile layout tools and the profile grid view
05:30
reopen the volumes dashboard if it is closed,
05:41
use the recompute volumes button to refresh the volume surface.
05:47
In our example, we now have 1052 cubic yards of fill.
05:51
Again, your volume will be different depending on the changes you have made.
05:57
You can readjust the profile as before
05:59
to reduce the net volume even further.
06:07
Now we'll update the surface style to display our cut and fills
06:13
in the model. Pick the blue volume surface,
06:18
bright click and select surface properties
06:21
in the surface properties. Go to the analysis tab
06:25
The analysis type should be set to elevations
06:29
for the legend, select cut and fill volumes
06:34
for the ranges, select range interval with data.
06:38
The interval will be 1 ft
06:40
and the datum will be zero.
06:43
Use the run analysis button to generate the ranges
06:47
cut areas will be displayed in reds and the fill areas will be displayed in greens.
06:55
Click. OK?
06:59
We can now see visually where the cotton field takes place on our road.
07:04
A groundworks contractor could use a drawing of this
07:07
to plan where to dig and where to place to cut material,
07:14
select the volume surface.
07:15
And on the surface ribbon tab labels and tables panel, select a legend
07:22
on the command line, choose elevations for the table type
07:25
and then choose dynamic for the table behavior.
07:30
Select a position for the legend table in the upper viewport
07:33
somewhere clear of the design.
07:37
The legend displays the cup fill depths
07:39
with the color
07:40
and two D area and the volume for each color band.
07:46
Finally, in this example, I have added all three volume surfaces,
07:50
one for each corridor
07:51
to the volumes dashboard.
07:55
The total net volume for all three roads is shown as 43,000 cubic yards of cut.
08:02
The volumes dashboard allows me to trade volumes across all three corridors.
08:07
It may not be possible to raise one road because of design constraints,
08:11
but I might be able to raise one of the others to compensate.
08:16
After making some more edits to my corridors. I've been able to reduce the volume
08:21
to 18 178 cubic yards of cut.
08:26
We have seen how we can use volume surfaces and the volumes dashboard
08:30
to optimize our red design
08:33
using the volume surface style. We can display a cut and fill analysis graphically
08:38
and the legend adds detail to our analysis.
00:04
Civil 3d surfaces can be used to calculate
00:06
volumes of cut and fill between two surfaces.
00:10
Generally, this is between a design surface
00:13
and an existing ground surface.
00:16
We can create a tin volume surface using the surface creation tools
00:21
and set our base and comparison surfaces.
00:24
However, we often need to assess multiple design services. At the same time.
00:29
The volumes dashboard on the analyze ribbon tab
00:32
allows us to do this.
00:35
We will want to adjust our surfaces to optimize the amounts of cut and fill
00:40
while still maintaining our design standards.
00:44
We can edit the road profiles used in our corridor models
00:47
and update the volume surfaces automatically.
00:52
The start of sycamore heights is controlled
00:54
by our intersection with Mcallister Boulevard.
00:58
We will need to set this to rebuild whenever a design change is made.
01:04
Select the intersection in Prospector,
01:06
right, click and select update regions automatically
01:10
choose, continue with update.
01:12
When the warning is displayed,
01:15
the intersection will be rebuilt.
01:20
Next, select the Sycamore Heights Corridor in Prospector,
01:24
right. Click on it
01:25
and select rebuild. Automatic.
01:28
Both the intersection and the corridor
01:31
will now rebuild when they need to
01:35
from the analyze ribbon tab on the volumes and materials panel
01:39
open the volumes dashboard
01:43
in the volumes dashboard, the panel on the left will show the total site volume
01:48
to turn this on. Click on the toggle net graph button on the top left of the dashboard.
01:55
Now we'll create a volume surface for the road.
01:59
Click on the create new volume surface button as shown
02:05
for the name
02:06
use vol to sycamore heights datum
02:13
set the style to cut and fill banding. One for interval
02:16
two D.
02:19
The base surface is always the existing surface. In our case, existing ground,
02:26
the comparison surface is always the design surface.
02:30
This will be sycamore heights, datum surface
02:34
click OK. And the volume surface will be added to the volumes dashboard.
02:39
It has calculated a net volume of nearly 12,000 cubic yards of cut.
02:45
This means that our profile for the road is generally too low.
02:51
If you pick the profile, you can see the two crests curves are very close together
02:56
to be able to adjust the profile. We will need to reduce the lengths of these curves,
03:02
use the grips on the curves to make them both shorter. As shown.
03:07
This will provide some space between the curves for them to move freely
03:14
at the start of the profile. You can see the change of grade at the intersection.
03:18
If we alter the first grade on sycamore heights,
03:21
there is a possibility that the dynamic intersection will add a new tangent.
03:28
We want to avoid this. So review the rules for the intersection,
03:33
right, click on the intersection in prospector
03:36
and select a just side road profile.
03:39
The rules show that the maximum grade into the intersection is five per cent
03:44
and the maximum change in grade is 4%
03:48
since the cross fall on the main road is at minus 1.94%.
03:52
This allows us a maximum grade of 2.06% on the incoming tangent.
03:60
Right. Click on the profile and select edit profile geometry
04:05
on the profile out tools
04:07
open the profile grid view
04:11
in the grid view, set the grade of the tangent in the grade out column
04:15
to 2.05 per cent as shown.
04:21
Since we know we can't raise that tangent or its intersection point,
04:25
then we must use the PV I of the second curve to adjust our volumes
04:32
using the grips on the profile,
04:34
pick the PV I grip and drag it up
04:39
after the corridor has rebuilt.
04:41
Go back to the volumes dashboard
04:43
by switching tabs in the Panorama viewer
04:47
use the recompute volumes button to refresh the volume surface.
04:54
I still have a net cut of 1963 cubic yards.
05:00
You'll have different values depending on the edits you've made,
05:05
you can repeat the adjustment to the profile to
05:07
reduce the net volume as much as you can.
05:11
I'm going to edit the profile again
05:13
and then go back to the profile grid view.
05:17
I want to reset the K value of the curve. I've changed back to 151
05:25
close the profile layout tools and the profile grid view
05:30
reopen the volumes dashboard if it is closed,
05:41
use the recompute volumes button to refresh the volume surface.
05:47
In our example, we now have 1052 cubic yards of fill.
05:51
Again, your volume will be different depending on the changes you have made.
05:57
You can readjust the profile as before
05:59
to reduce the net volume even further.
06:07
Now we'll update the surface style to display our cut and fills
06:13
in the model. Pick the blue volume surface,
06:18
bright click and select surface properties
06:21
in the surface properties. Go to the analysis tab
06:25
The analysis type should be set to elevations
06:29
for the legend, select cut and fill volumes
06:34
for the ranges, select range interval with data.
06:38
The interval will be 1 ft
06:40
and the datum will be zero.
06:43
Use the run analysis button to generate the ranges
06:47
cut areas will be displayed in reds and the fill areas will be displayed in greens.
06:55
Click. OK?
06:59
We can now see visually where the cotton field takes place on our road.
07:04
A groundworks contractor could use a drawing of this
07:07
to plan where to dig and where to place to cut material,
07:14
select the volume surface.
07:15
And on the surface ribbon tab labels and tables panel, select a legend
07:22
on the command line, choose elevations for the table type
07:25
and then choose dynamic for the table behavior.
07:30
Select a position for the legend table in the upper viewport
07:33
somewhere clear of the design.
07:37
The legend displays the cup fill depths
07:39
with the color
07:40
and two D area and the volume for each color band.
07:46
Finally, in this example, I have added all three volume surfaces,
07:50
one for each corridor
07:51
to the volumes dashboard.
07:55
The total net volume for all three roads is shown as 43,000 cubic yards of cut.
08:02
The volumes dashboard allows me to trade volumes across all three corridors.
08:07
It may not be possible to raise one road because of design constraints,
08:11
but I might be able to raise one of the others to compensate.
08:16
After making some more edits to my corridors. I've been able to reduce the volume
08:21
to 18 178 cubic yards of cut.
08:26
We have seen how we can use volume surfaces and the volumes dashboard
08:30
to optimize our red design
08:33
using the volume surface style. We can display a cut and fill analysis graphically
08:38
and the legend adds detail to our analysis.
