I'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 RepliesI'm to compare volumes in c3d to Inroads. My volumes are not matching ( cut and fill are not even close). Civil 3D uses the average end area and InRoads uses 'triangle method' to calculate the total volume. How can I get C3D volumes to match InRoads which is verified correct?
View 5 Replies View RelatedI have an existing contour surface. I would line to calculate the volume of topsoil which will be 300 mm following below the existing contours.
View 3 Replies View RelatedI have trying to run lift station simulations and my calculation nodes are always flooding. They don't flood in real life so what could be a problem?
View 6 Replies View RelatedI have run a volume between two surfaces, I need to further to break that new volume surface up to get volumes for each section. I know in microstation you can fence a volume surface and it will tell you the volume for that area. Is there a function in civil 3d that works like this. I know I can break it up manually and create new surfaces, I am looking for a time saving appoarch and trying to minimize file size.
View 2 Replies View RelatedI want to use 3D civil software to calculate the the reservoir volume from the attached micro seismic data.
View 7 Replies View Relatedvolume dashboard on which method of calculating is based. Why sometime are different, huge differences between counting volume based in "computer materials" which of 3 is the best? for calculating? I am using very often average end area, is that correct?
View 2 Replies View RelatedI have a manure storage pond that I am trying to figure out the total storage volume for. It has 2.5:1 Side slopes and a 10 foot wide ramp at 10:1 entering the pond to the floor bottom. I am trying to figure out what the volume of this pond is. What is the fastest and most efficient way to get this volume? I do not want it compared to any other surface such as existing ground.
View 7 Replies View RelatedI attach picture 1 and 2.
I need to create surface like this picture 2. I need crate surface by joining 1, 2, 3 like as picture 2 section, but when i crating surface its joining as picture.
This problem have been found . I created a tofo of the rock which rock is bend lower picture 2 section to calculate the volume i need the surface create like this.
how to calc dirt quantities in Civil 3D. Not just on roads, but say you have a small mountain of dirt that needs to be hauled away, and the contractor asks if you can quickly tell him how much dirt is there. And subgrade quantities for pads. Things like that.
First off, I'd need to learn the correct terminology. Knowing what to call stuff can at least make you sound less stupid when you ask a question.
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how can i do hydraulic calculation for pressured pipes using autocad civil 3d or by using any other autodesk application or extension
View 2 Replies View RelatedIn hydrographs, SCS method, the basin slope is needed for the the calculation of the time of concentration. What is the method for the calculation for the basin slope ? If we have a 3D surface is there a tool in autocad to calculate that automatically?
View 3 Replies View RelatedI have a volume in my CAD file described by 3D Faces. Is there anyway to know what is the volume of this volume -that represents an open pit-?
Every time that I do a volume I do by the comparison of 2 surfaces but this is not the case now.
I've recently started working with Civil2012/2013 (bit the bullet you might say).
I attended a course on civil about a year ago but it didn't cover all the bases.
My question: stripping calculation, is there a way fro civil to perform it automatically?
One way to calculate stripping (manually) is after i have all the tin volume surfaces, is to show the fill areas in the volume tables and then do the calculation myself.
I am highlighting an area and at the last point where I press eneter expecting an area calculation, I get this message "specify next point or [A/L/U]; I don't want that I want the area
View 1 Replies View RelatedI was just wondering why when I try and calculate an area using a polyine, I am getting a readout of 1.80401967E+07, when I have it set to give me the calculation in square feet? It is an area of approx. 246 Acres.....is this because the area is so large? I am not sure what the "E" stands for or the "+07" at the end....
View 6 Replies View RelatedWhat do the data in the summary of volume calculation mean? In LDD, typically the minimum and maximum elevations are within the range of elevations where the volume is being analyzed. In my current vol calc summary it shows something that really makes me frown, e.g, min elev of -26.00 and max elev of 752. I have checked all the proposed elevations and the minimum is 720.
View 9 Replies View RelatedSSA rational method. I have to compare results of rational method between SSA and another product. Plain rational method, steady flow, Darcy-Weisbach. Times of concentration (TOC) are manually defined.
I played a bit with the units, formulas, IDF curve is defined as pair of values time/intensity. Seems that I achieved something. Results are more or less similar, but there are some differences. After playing with both programs, comparing in Excel, think that I found what is different.
So, I have very simple example, of one channel with catchment areas. All areas have the same runoff coefficient – 0.8. Pipe diameters are constant (500). The whole analysis is restricted between 5 and 10 minutes of rain duration (5 min-397.22 l/s/ha and 10 min – 321.53 l/s/ha). I converted IDF to mm/hr. So I have the next example:
[picture in attachment]
In theory, what I learned about rational method, there is next definition:
Intensity from IDF curve is defined by TOC. TOC is defined by sum of „entrance time“ (which is defined by shape and size of catchment area) and sum of upstream flow times. In my example I defined 5 min for every area.
So, for example for pipe nr. 3, TOC is calculated:
TOC_3 = Entrance time for area 3 + Tflow_1 + Tflow_2 + Tflow_3
For example:
TOC_3 = 5 min + 0.67 + 0.45 + 0.51 = 6.63 min
That TOC_3 (6.63 min) is base for reading appropriate value of intensity (I_3) from IDF curve. The flow in pipe 3 is then calculated:
Q_3 = I_3 * (A1 * k1 + A2 * k2 + A3 * k3)
This is the way how I learned rational method. But results between SSA and another product (which works in a way explained above) are different. Differences increase downstream.
After playing with results in Excel, I found out that SSA does not summarize in TOC all flow times upstream. So TOC in SSA is calculated simply by initial entrance time and flow time in specific pipe:
TOC_3 = Entrance time for section 3 + T_flow_3
So, there is no time added from T_flow of pipes 1 and 2. Seems that it is major difference which leads to final results differences. I tried to understand all options of SSA to find possibility to add upstream flow times, but without success.
C3D 2012. I am trying to get the distance from the start of a featrue line to a selected point. My object is "FLobj" and my Point is PT1. I am using the method Get2dDistanceAtPoint. This is the line of code.
(vlax-invoke-method FLObj 'Get2DDistanceAtPoint pt1 'pDistance)
I keep getting "too many actual parameters".
I am trying to see what is in the Xdata of a label object:
(setq labl (car (entsel "
Select label: "))
vlabl (vlax-ename->vla-object labl)
)
GetXData is a method of the selected object I am calling vlabl.
I can't figure out exactly how to get this to work. The method list says GetXdata(3).
When I try
(setq xdater (vlax-invoke-method vlabl 'getxdata x y z))
I get an error: error: ActiveX Server returned an error: Parameter not optional
If I try
(setq xdater (vlax-invoke-method vlabl 'getxdata 5 5 5)) ;shouldn't this retrieve the values of the array as double double double?
I get nil. No error, just nil. Does this mean there are no values in the array or am I missing a step that lets me read the array?
I was able to convert from variant to safearray for another routine I wrote yesterday, but that variant came from a get-property, not a method. As you can tell, I have hit a wall.
I´m trying to modify slopes for BeginAlignment.
This is my code block but it doesn´t anything.
#region peralte inicio alineación y final alineación if (variables_globales.peralteTransversal == false) { //añadimos el peralte para el p.k=0 y para el p.k final si se trata de rectas. if (variables_globales.ListaentitiesAlign[0].SubentityType == AlignmentSubEntityType.Line) { //abrimos la base de datos por si tenemos que escribir. Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument; Database db = doc.Database; Editor ed = doc.Editor; using (DocumentLock docLock = doc.LockDocument()) { using (Transaction trans = db.TransactionManager.StartTransaction()) { Alignment align = trans.GetObject(Id, OpenMode.ForWrite) as Alignment;
[code]....
variables_globales.ListaentitiesAlign is a list of all subentities of Alignment and I check if the first subentity is a line.I use switch but you don´t have use it.
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You said that there is no need to flatten, but each method I have tried does not produce a polyline with curves.
I tried:
survfig.BaseCurve
survfig.BaseCurve.GetProjectedCurve
survig.BaseCurve.GetOrthoprojectedCurve
If if manually flatten the figure using a dummy suface with the AeccFeatureElevsFromSurf command, the polyline derived from survfig.BaseCurve will then have actual arc segments.
Is there another method or a way to flatten the figure programatically first?
In my corridor I have used superelevation. In a horizontal curve which has a cross slope of 4.5%, I have an intersection. To allow for a smoother ride through a few lanes in the intersection I want to change the cross slope from 4.5% to 1%. I was planning on doing this by using a Outside Lane Elevation Method of a Profile. However, it appears that my super has precedence over my profile. Is there are way to make this work?
View 2 Replies View RelatedIs it possible to have pipe flow direction method set to "by slope" by default when we creating new pipes?
View 5 Replies View Relatedcreate a quick profile using the Points method?
When I am asked for the Profile Origin the cursor is like a standard Windows Arrow pointer and won't let me select a point for the origin.If I use a polyline for the quick profile all works as expected...
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I am in case to model a stormwater network contain ditches with irregular sections, open channels and closed pipes in SSA. I do not have access to IDF curves for the Project area. We got a weather station in site which is giving us continuous data from last 3 months till now. At this stage we just decided to use certain Rainfall intensity (mm/hr).
We got some check points to check the turbidity. What I need to know after analyse is i.e what is the flow at these points at 6:00 pm if we experience the rainfall from 3:00 pm to 4:00 pm with 20 mm/hr rainfall intensity.
So my concerns are with these available basic data, which method is suitable? and as long as we approach more valued data from in site weather station then which method will be the best. If i want to input time of concentration manually for each subbasin then how can i input TC of pipes or channels in SSA? URL....
where MATT said: "SSA does not calculate the Standard-Step method. The Rational Methods (including modified, and DeKalb) all compute the runoff to the inlet or junction. As soon as runoff enters the system, continuity and momentum calculations take over. SInce you are using Steady State Qin = Qout, so no routing occurs on pipes."
how do i understand the flow in certain points i.e 2 hrs after the rainfall is finished if I can not define TC for pipes or channels?
Angle-distance method to stake out the horizontal alignment by total station,Assuming that the total station with reflector is the tool that it is intended to lay out the circular curve after being designed then the only way to do so is to construct a table that contains angle-distance values.
I’m wondering if the C3D can provide this table (attached)
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.
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