My background is actually in Microstation (mainly 2D). I was asked if I could calculate the cut and fill between two topo surfaces. Unfortunately, I don't have the files yet but I will eventually receive them. When I do, what would be the correct method to achieve this task?
View 3 RepliesWhen I select all of my building pads and topo and move them vertically up or down by the SAME amount, the cut and fill volumes change. Apparently the cut/fill is being calculated relative to something that is NOT THE GRADED SURFACE. Maybe the Level line? I don't know. The volumes shouldn't change at all when I move both the topo and pads together! How can I trust these numbers?
View 4 Replies View RelatedWe have a good size channel and the section for the channel varies quite a bit. We want to find the volume excavated in the channel between 2 elevations (it is the area of sand per the goetech report)? A template was not used to create the channel surface, breaklines and gradings were used.
View 9 Replies View RelatedHow I can calculate my area for different slope regions?
View 7 Replies View RelatedAny quick way of calculating average Parcel Area? I used to export to LandXML and do an area report in CSV. That doesn't seem to be working for me when I export out of C3D 2012.
The workaround I found was to select all the parcels in Prospector, copy to clip board, paste in excel, find and replace "_Sq. Ft._" with 0, then do the average.
I've been learning civil3d for some time now and I really want to understand how the program calculates volumes from road corridors.
When the top code is used to create surface from a road corridor, the created surface coincides with the top of the road pavement (binder/wearing course), which is not part of earthworks.
How can I create a surface at the formation level so as to compute actual earthworks?
I am looking to calculate the volume of an existing berm from a TIN surface. I have read through some of the Civil 3D tutorials, and realize that I will need to have two surfaces (base and comparison), but need to figure out how to create the comparison surface.
View 9 Replies View RelatedI have been provided a file with a surface, however I have not been provided with the point files referenced to define the surface. As a result, when I try to calculate the quantities in the volume dashboard using a volume surface, I get the error that the surface is out of date. Is there a way to calculate volumes with an out of date surface?
I am trying to calculate the amount of material required to be cut when creating a flat bottom ditch.
I have create my surfaces and now need a volume between to two surfaces. I created the surface by using the Surface/Create TIN Surface tool for both my OG and the surface after material has been imported. I have gone to the volume dashboard and it will not let me add existing surface. How do I calculate the volume?
View 3 Replies View RelatedIn Land Desktop using the Hydrology tools, we could get capacities for rectangular pipes based on slope, size, etc.
I have tried using the Hydraflow Express tools for this, but cannot figure out how to use them for a RECTANGULAR pipe (i.e. 10x4) box. Saw the circular option, but couldn't change where it says circular.
This is not a culvert analysis because we have inlets, multiple slopes, etc. It is part of an entire system.
I use these tools to layout the system before I want to put it into the analyses software we are using.
I notice issues using spanning pipe labels for the first time recently after having used them for years. The slope calculated by the spanning pipe label is completely wrong. I've attached a picture in which Labeled two pipes connected by a null structure. The two labels on the bottom are the pipes labeled individually at 3.53% and 3.34%. When labeling them as a spanning pipe, if I choose the downstream pipe first and them the upstream pipe it shows me a slope of 0.48%. If I choose the upstream pipe first, then it gives me 2.88%. Either way it's wrong.
As I was writing this I decided to check and see if the pipes were flowing the same direction (Start to End or End to Start). Turns out they weren't. After flipping one of the pipes around so that they both are laid out in the same direction (Start to End from Upstream to Downstream) the label now reads 3.37%, which is correct.
Seems like an the label should honor the flow direction of the pipe, no matter if they have been laid out in opposite directions or not.
I need to create a cut and fill. the fill will required to have riprap at 1.5m depth.I have tried using diferents assemblies:
BasicSideSlopeCutDitch and also DaylightMultiIntercept but I can't get results. Maybe I am not using the right parameters?
I would ask a question about the Cut and Fill Volumes reports in Civil 3D.
View 3 Replies View RelatedI have an existing survey surface, and I want to know how much cubic yard of materials to fill up from the bottom to elevation 876. See attached image for detail. Here is what i am going to do....
- i will create a surface of the fill area (from bottom cotours up to el 876) then do a volume surface bwt existing ground surface and the new fill area surface to get the volume of it? Is this a right way to do?
Is it possible to change the cut and fill pattern from solid bands of colour to bands of colour cross hatch (for example)? The reason for this is, when printing the drawing uses a lot of ink.
View 8 Replies View RelatedI have a drawing prepared in Civil 3D 2013 with a number of surfaces representing both the existing and proposed grade of a site. I have the cut and fill quantities but now I am required to illustrate on my drawing where the areas of cut and areas of fill are by showing boundary lines or shaded areas, etc. Is there a way Civil 3D can easily generate these areas in order to visually show the locations of cut and of fill?
View 8 Replies View RelatedI have a decent understanding of how corridors work, and I am able to generate material volume tables for earthworks, I can edit my corridor and everything is all synced up as far as I can tell. Where I am having trouble is removing topsoil (with a volume generated) and then using that new 'section' to calculate cut and fill.
The project is a new road for a subdivision. Topsoil is to be stripped only within the limits of the back of curb, and anywhere the fill is greater than 300mm (a foot).
What I was trying was to use the stripping topsoil subassembly, with a foreslope of 0:1 and a width based on my corridor. I would have this subassembly on the let and right, and the attachment point would be the crown of the road. Then I would create a surface using the stripping feature lines and the stripping link to calculate the topsoil removed. Then I would use this surface as the Base to compare for my Earthworks.
The problem I was having is the Topsoil surface wouldn't follow the actual topsoil feature line in the sections, and would get some pretty wonky stuff happening with regards to the TIN lines of this surface. Flipping the TIN lines seems very difficult to do properly and efficiently.
Trying to get the cut/fill quantities by computing the materials & I'm getting confused.
I imported another criteria & for ground removed it has existing as below & my datum as above. For fill, it has the datum below & existing above. The cut/fill matches a comparison between the 2 surfaces, but I just want to make sure I'm doing it right. Explain why for cut the datum's set to above & for fill it's set to below,
I am working on a project for a park in which they are looking for a new access road and a parking lot. I created the road and sections for it, now im looking to get material cut/fill from the sections. I am having a tough time getting them to work. The only thing I can get to work is if i created a volume surface comparing my eg to my fg surface. That will give me a cut and fill material amount for my new road
What i am trying to get is the volume report for each sections, so i can get the cut/fill for each section. I have followed the tutorials and tried everything, but nothing seems to work. I created a surface from my corridor, and for some reason when i go to edit my materials, i cant add my proposed surface from my corridor to make the comparison from, and i think thats my problem. Everytime i go to create my volume report, i get all 0's.
I would like the grading of a site to happen only on part of the site; I need the rest of the site to remain unchanged.
I thought I was finished with this project, the volumes seemed about correct, and then I noticed in the comparison surface (showing areas of Cut and areas of Fill) that soil is being taken from parts of the site that need to remain undisturbed. This is a residential site with a conservation easement and other forested areas that we won't be disturbing.
How do I set a boundary or breakline (or what?) to limit the grading/cut/fill to the area I want?
AutoCAD Civil 3D 2010
The project I am working on requires shoulders sloperd at -1.5% to -3.0%. Is it possible to set up an assembly and corridor to cut anything above -1.5% and fill anything below -3.0%?
If I can show both the cut and fill in the same drawing, that would be ideal.
AutoCAD Civil 3D 2012
See drawing attached.
I have a large fill area directly dropping to to a large cut area. All of the above work is in rock, There is a retaining wall along a section of the "cliff face" but not at the ends where the cut and fill meet.
I would like to transition the fill batter on to the cut batter to enable the filled area above to be self supporting.
How to apply a different set of fill factors along the same alignment in the same material list? I have a road that is going to be sandy soil for the first half and half rock for the last half.
View 1 Replies View RelatedI'm new in civil 3d road design so my question may be basic.when i prepare a corridor and proceed to get cut and fill it appears as zero.i think i made some mistake at a stage when in section line we decide surfaces..step wise from section line selection to cut/fill calculation also give me the general concept regarding selecting surfaces during cut/fill volume calculation?
View 5 Replies View Relatedwhy the "cut/fill" numbers are all at zero in my report? All the offsets and the design elevations show just fine....
View 9 Replies View RelatedMaking my cut and fill reports more accurate?
The main question I have is when should I delete lines in my surface, so if there is literature on how to manipulate surfaces created from survey data that would be perfect.
how to Translate WCS coordinates to PSDCS? where can find the C# code?
View 2 Replies View RelatedA question regarding converting angles between co-ordinate systems in AutoCAD .NET.
Im creating my first little utility to form selected block attribute references into a nice neat list. The current version takes a selection of blocks and a list insert location and then moves the attribute references to the location and rotates them to WCS angle of 0.
I now want to expand the program to make it a little more flexible and allow you to form the list parallel to the currently selected UCS x axis (the i.e. and angle of 0 in relation to current ucs's).
I have managed bumble my way through and transform the attribute positions correctly to form a list relative to the current UCS but am strugling on how to work out in code what the equivlanent WCS angle value would be.
I have done some calcs using .net framework to calculate an angle between two vectors (see code extract below). But this introduces a small error into the angles (i.e. if my ucs is set rotated 45 degrees around the zed and i use the below maths, the resulatant angle is 45.0000002 when read in acad afterwards).
Matrix3d ucsCur = ed.CurrentUserCoordinateSystem;
CoordinateSystem3d cs = ucsCur.CoordinateSystem3d;
// the below seems to work by calugulating the angle between two vetrex using .net maths class but this introduce a small accuracy error. Is there a better way?
Double rotAngle = Math.Acos((1 * cs.Xaxis.X) + (0 * cs.Xaxis.Y) + (0 * cs.Xaxis.Z));
//set the attribute reference rotation to the calculated WCS radian rotation value "rotAngle"
attRef.Rotation = rotAngle;
Im sure there is a better way built into the managed autocad wrapper using a tranform matix and the ucs vertex information but dont really know how to go about it. Any links explaining how to work with the UCS in .net.
I have a road that I am engineering and have set up my subassemblies using the daylight standard. But i would like to force a cut section until the fill gets to 2'. so that when i have 2" of fill it will still cut my ditches.
View 2 Replies View RelatedI have created a building pad on my site and need to extract fill quantity. I set the elevations on my building and created a 5:1 grading object. to the existing ground.Autodesk Instructions are, for the actual building footprint, that I need to create a grading object at 1:1. for the area covered by the actual concrete pad. Need screen shot of the style settings of this grading criteria. because the area is flat it is impossible to determine if the floor area has been built. When I run sections and create volume reports the only fill quantity is from the grading objects that slope out from the pad. I must be overlooking a setting in the style for 1:1.
View 6 Replies View Related1. Is the best way to create a design surface having a feature lines and then creating grading objects? Then how do i create a FILL grading group for an eroded embankment of a reservoir. The examples on a typical book e.g."master civil 3d 2012" shows a pond design.
I started a polyline boundary area just a bit smaller than cogo points consist of - survey points shot on the edge on the cliff, shot midway to wall of the cliff and shots taken to where the toe of rip rap fill-boundary should be.More points were created with elevations which represent whats on the site. (See image) . is this correct? On the base feature boundary, do i just tell what length of the boundary line it must be graded from the top of the cliff, 1:2 slope and when I get to the portion of the base feature boundary line at the toe , I just tell how far the length of the boundary line is the and give a slope value of 1:1.5. Should this work.
2. I'm about to try to model the the design surface a different way. (from the cliff 1:2, it goes this way for 5 ft, changes to 1:1.5)
do I create feature lines at toe , then vertical feature line between the toe and the cliff , then use the grading editor or elevation editor
3. Once I obtain the infill surface of the fill, how rotate or orient the model , ( rock material - rendered) so Photo 3 is draped over it.?