AutoCAD Civil 3D :: Corridor Model - Computing Earthwork
Mar 19, 2013
I have a corridor model that is made up of assemblies which have different subbases (pave1, pave2 and base). If i need to get a volume calculation of each one as they compare to my EG, do i need to create a surface for each one using the appropriate link?
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Jun 6, 2010
When a corridor has lots of variations along the outside edges of the travelway it can make corridor modeling from the centerline a cumbersome task. This is because we have to create a template and region for every scenario where the edge treatment varies from right to left.
To simplify the process I have considered creating alignments for the edges of the roadway and adding them as baselines to the corridor. This way we can create just a few assemblies for the various edge treatments and apply them independently to the left and right baselines. These assemblies would then target the centerline profile to model the crown of the roadway, just as we do for curb returns.
In my experiments it seems to work nicely, but I encountered problems when viewing cross sections and calculating quantities, since the software is designed to work from the centerline baseline. Would it make the sections work if I add an assembly to the center baseline with short segments of pavement and stretch them to the edge baselines?
Another challenge is generating the profiles for the edge of the roadway to use for the baselines. These profiles would need to follow the centerline at a given vertical offset to provide the desired crown slope. Any edits to the centerline profile would need to be reflected in the edge profiles. This could be done by creating a surface from a grading object that is built on a featureline generated from the centerline and using that surface profile for the edge of roadway baselines. Another would be to stretch the center assembly to the edge and generate a profile that way.
So my question is: can this workflow be made to work somehow?
Infrastructure Suite/C3D 2013, LDT 2004, Power Civil v8i SS1
WIN 7 64 PRO
HP Pavillion h8xt, i7 2600, 12 GB
RADEON 6450, 1 GB
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Nov 7, 2013
Designing a tailing dam I use a corridor model changing slope grade from 1:2 to 1:2.5.
There are assemblies and subassemblies with shapes defined for each slope grade, LinkMulti with no target, but how do I make the transition from one slope grade to another one?
In corridor properties I included two regions for each slope grade.
For grading there is a transition function. But the transition for corridors?
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Dec 5, 2013
I need to show earthwork (+ or -), EG and FG on a grid. cogo points do not seem to have reference text functionality. surface labels seems to be able to do it, but cannot give me a table.
Civil 3D 2013 SP1, Win 7-64 bit
12GB RAM
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Nov 29, 2013
I just want to start by saying I have been extremely impressed with the speed and effectiveness of finding Civil 3D solutions through this forum. However I do not think there is a way to solve the problem below without making a custom sub assembly.
There is a common problem that I run into when modelling earthworks on airfields. All Taxiways and Runways will have sepirate areas that determine the slope of earthworks in that area. As an example I will explain my problem for a Runway.
Any ruwnay will have a Strip area (150m offset from its centreline) and a Clear and Graded area (105m offset from its centreline). Therefore any earthwork slopes between the runway pavement edge and 105m offset from the centreline will be determined by the requirements within the Clear and Graded Area. Likewise any earthwork slopes between 105m and 150m offsets from the centreline will be determined by the requirements of the Strip area.
My problem is that when overlaying a runway, the new earthworks required may extend beyond the clear and graded area (and into the strip) at some points but not in others.
Therefore I would like a sub assembly that does earthworks at a set slope unless it passes the clear and graded line where it would then continue the earthworks using a different slope. It should be pointed out that the clear and graded line will be present along the entire length of the runway and the earthworks may or may not extend beyond it.
Just for the sake of clarity, when I say earthworks, I mean the subassembly within autocad that will "Cut or Fill" at a set slope until it reaches a chosen surface level. Similarly the "clear and graded line" and "strip line" are 2D and mearly delineate the areas in plan.
save time and make my model more dynamic. As it stands I have been getting around this problem by modelling the earthworks at the initial slope (clear and graded area) and then manually amending the corridor to use a different assembly where the earthworks extend beyond the clear and graded line.
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Sep 14, 2012
I have created a surface from a corridor. I set the boundary of the surface to the daylight of the corridor. In some areas of the corridor the surface does not triangulate see attached.
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Dec 13, 2012
Copy a corridor successfully? I'd like to try this just a little worried about the explosion of evil this may cause to my Civil 3D session.
Even all the properties of the corridor setup from one to another would be useful. I'm building one corridor and an 2nd one that matches everything except I need to replace my Assembly with one meant for stripping.
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Mar 21, 2013
My corridor surface is not matching my corridor top links. see attachments. this is affecting my volumes!
The section-plan(surface red).png is showing the section editor and the plan view. the red highlighted line in section is the corridor surface and as you can see in plan view the surface is incorrect and wiggly.
The pdf is all my sections with the red linework being the corridor surface.
C3D ver 2012
Win 7, 64bit
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Aug 17, 2012
The only way to do FEA analysis is through Autodesk's cloud server, the problem is my company's firewalls will not allow us to store, connect, or use cloud's or any server but ours. So I wondering if there is a option or setting that I can change and do all the computing locally on my machine.
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Jun 13, 2013
C3D 2014
when I created a Top surface, C3D showed me otherwise. I need a gap at an intersection. In the attached DWG the intersection corridor has been removed from view by isolate.
I used 2 seperate baselines to force the road corridor to have a gap at the intersection.
Looked OK .. except ..later .. when I created a Top surface, only the first baseline is used to create the surface, the second baseline is skipped : (
I obviously did not make a gap correctly. What is the correct way? Or.. is there no way .. must the designer create multiple seperate corridors when the road has gaps?
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Sep 11, 2013
I am currently using AutoCAD Civil 3D 2010 for surveying work and have been trying to figure out how to use part of an existing survey of land model. I have it in a layout (paper space) and used a viewport to get the section I am after but there are some changes in labeling and minor model modifications needed to make it a stand alone model and I do not want to modify the original model to make these changes. How can I take a section like I have in view port and make it into its own model with a different scale so the changes can be made and the original model is left in tact?
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May 2, 2013
I have a very basic question about creating corridors. As you can see on the attachment, i created an assembly consisting of ditch and my own polyline subassembly and turned it into a corridor. The ditch part is drawn out correctly, but the other part (supposed to be a gravel road) has only sections in certain points.
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Dec 29, 2013
I started playing around with 3d dwf's. I'd like to share my corridors in a 3d dwf viewer or something similar but when it opens in design review, everything is skewed/ jagged/garbled. The other problem is that it exports everything (assemblies, alignments, sections etc.) so it make viewing navigation difficult in the viewer for people that aren't CAD savvy to begin with. It would be ideal if you could select what you want to export similar to exporting a wmf file.
How do others share 3d models with non-cad people?
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Mar 21, 2012
When i try to create a material list, i don't see my corridor surface - just the EG surface appear in the list.
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Nov 18, 2013
We are trying to edit a small portion of an existing corridor by adding a generic daylighting subassembly. The add subassembly tool in the Corridor Section editor works, but we get an error because the new sub doesn't have a target surface specified. how to add a target for a sub that is added after the corridor was created?
Civil 3D 2012 & 2013 & 2014
Toshiba Qosmio X505-Q890
2 x i7 - Q740 quad core CPU's
8GB of RAM
60GB SSD + 500GB HDD
NVidia GeForce GTS 360M - driver 8.17.13.0697
Win 7 Home Premium
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Feb 7, 2013
When creating an alignment from corridor feature (ditch invert level), the created alignment is not following the selected line (see image bellow). The alignment seams to be created from the first point of the feature line to the last point and ignores all the other points. The vertical alignment created at the same time seams to be correct.
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May 16, 2012
I am trying desperately to create a corridor in C3D 2013.
I have the requisite Alignment, Profile and Assembly, yet when I create the corridor, either nothing appears, or it creates the corridor at incorrect elevations. I have the proper elevations in my alignment.
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Mar 20, 2012
I had a grading plan all set, with a corridor involved. Then, I received a new survey that I didn't know was coming. I need to move all of my elements to different coordinates. I can move everything except the corridor.
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Jun 13, 2012
How to get rid of this gap? Everything I have tried just causes overlaps.
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Jan 11, 2013
I only get 2 choices when selecting corridor feature line to create profile - ETW_base, and ETW_sub. My Subassembly has 2 pavement sections, a base and subbase section. I need the top of pavement profile.
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Nov 6, 2013
I have a corridor with intersection.The intersection isn't 90 degrees. Can I cut corridor with(for example) 45 degrees?
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Aug 27, 2013
I want to create a grade (without object grade) using a corridor. This is my assembly:
This only contains the sub assembly "DaylightBench" in the side right.
I have the alignment and profile. I have created the corridor.
red line= alignment
green line= feature line (code Intersecction) converted to polyline.
pink surface= surface (code TOP).
I have added a boundary for surface of type "add from polygon" and I have selected the closed polyline(green line).
However, the boundary seems doesn´t work.
Autocad Civil 3D 2014 +SP1
Quad Core Intel i7 3770-cpu 3.40Ghz.
ssd samsung 840 pro 512gb+ssd samsung 840 pro 256 gb+1tb hdd
32gb RAM 1600 Mhz.
nVidia Quadro 2000.
Win 7 Pro 64bit
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Aug 30, 2013
I am trying yo model river corridor with 4 locks on it. On every locks different between levels is about 2-3m. I it is possible to create profile perependicular to bottom of river. How to create it?
Another question how to later connect surface. I mean Existing ground and corridor intersect. Ho to prepare later for render Existing ground with cutted corridor river? where I am below EG.
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Jun 7, 2012
I have sevreal corridors with various spurs. The contractor wants the cut/fill volume in sections along the corridors, not one big cut/fill calc. Is there a way to do this in C3D? I have got the volume table with the chainages on, but he does not want a cumulitive figure for the whole corridor.
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Nov 14, 2013
I am creating a corridor with a simple assembly. On my assembly, I have basic lane and daylight Multiple surface. My target is existing ground.
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Jul 11, 2013
I am trying to create a surface from a corridor. I have a sub-assembly attached, which I believe is working correctly. I managed to create the empty surface and when I try to add surface data nothing seems to happen. I keep changing the specified code to Base which is my finished gravel structure and hit the + but again nothing seems to happen.
Ultimately I am trying to determine a volume between my corridor and original topo.
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Jan 8, 2014
I need to design a project but ı cant..ı have two profiles in use for one alignment..ı want to use left profile for left side, use right profile for right side.and ı want to draw cross section only one..how can ı design like this project..
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Oct 17, 2012
I want to add different assemblies (some with walls or ditches) along the same corridor at given stations
Can that be done?
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Nov 22, 2011
We have created sections from our corridor. We see FG and EG, we can use bands for EG from surface. How do we get the FG band to show the elevations for FG? The only option we have is the EG surface. We have tried to create a surface form the corridor in the corridor properties but that surface still doesn't show up in the surface list in the bands. I would have thought this info would be dynamic and come directly from the corridor would it not?
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Sep 18, 2013
Why is my corridor adding a hinge? [Atleast I think that is the problem]
I am trying to create a berm that is 8' wide. For my assembly I used 4' wide basiclanes and daylightgeneral (with 3:1 slope in all parameters) on left and right side.
In the top image I have circled two of the areas in which the hinge line is shown. And in the bottom right the cross section of one side of the berm is shown. As you can see on the inside (left) there is two feet sloped at approximately -1% before it daylights to the surface at 3:1
Why isn't the left side matching the right?
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Mar 19, 2012
I want use my corridor where I need it and not use one in certain areas. For a proposed dike. Some places doesn't need to be replace.
So I need a way to use my section on the alignment. where I can find that option?
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