AutoCAD Civil 3D :: Calculate Pave / Base And Subbase
Mar 5, 2013
What is the formula used to find the value civil3d pave, base and subbase?
i have attachment material report, the three numbers marked in my attachment are the end areas calculated by the software. So, i want to know how those numbers are calculated .. manual calculated with formula ..
What is the formula used to find the value civil3d pave, base and subbase? Value of what is needed to calculate it? what parameter values obtained from the lane and shoulders?
In C3D 2009 you can generate material tables through "Sections" that tell you cumulative volumes for pavement, subbase and base material in separate tables. Separate, meaning you have to generate each table individually. Is there a way to create a materials table that gives me cumulative volumes for these three materials in one generation of a table.
Note: I am currently generating four separate tables (total volume and 3 material tables, 5 min per table) for each of my corridor driveways - I have 82 driveways total = 328 tables
Is it possible to add a base depth to the transition lane assembly? I need to do volumes for my road, (pavement, base) but there is a section with a transition (which only has one depth), so that section is off.
What formula Civil3D uses to calculate the average slope of a surface?
The formula I am using is S = I*L/A
S = Average Slope I = Contour Invertval L = Length of Contours (ft) A = Area of parcel (sq. ft)
I just had to do four parcel calcs and the percentage I find using the formula is always 1-3% lower than the percentage Civil3D spits out. I can't find anything about how Civil3D arrives at that number, it just appears. I assume that Civil3D is more accurate but I can't give that number to a client without knowing how the program arrived there.
Trying to calculate a catchment area to allow me to size some culverts using Civil 3D 2012 Sp#1.
" The specified location results in a Catchment with no area."
After sitting for 15 miutes I keep getting the above message. The surface is huge and there is an obvious catchment area (or I think it is obvious). The surface was generated from contours and cover an area of approx. 8Km x6.5Km but the catchment ares should be around 15-20% of that area.
I tried another one upstream about a Km and it worked fine. So the one I am doing now should encompass the upstream area as well as from that point downstream to the Discharge Point.
With reference to the picture attached, I am trying to find the overlapping area between two different cross-sections. I.e.the area of green minus the area of white.
The hard way to do it would be to sketch a closed polyline over the area I want but I have about 100 of these to do and more to come.
Is there a way to have C3D calculate your cut generated from a pipe network? I have a site with storm, sewer, and water lines. All of which are on 3 seperate pipe networks. I also have my finished grade surface established.
I know you can get the volume difference between two surfaces (EG&FG) but you would think you could do this for the pipe networks as well...
I am working on a project that requires me to calculate how much gravel I have to take out of a steep hillside when I am designing a route for a pipeline and a road. I is it possible to do this in Civil 3d and how can I do it?
I have a problem when calculating the volume of a design plan, the slope of the land, the design had to be made so as not to slide trap. How it makes grading a trap,
How to calculate in a table the volume of cut and fill between the stations, The horizontal and vertical alignments are generated along with their sections. I’m wondering if there is a tool that summarize the volume of cut and fill between the stations in a table.
I’m using 2011, due to printing issues in 2013. My question relates to determining how runoff gets diverted, or spreads out, after leaving a well defined channel.
I have a street intersection scenario. It’s a “Y” situation in which the main trunk of the “Y” is curbed and contains all the water for the three storms I’m studying. Runoff flows towards the two streets that branch off. I need to know what percentage of runoff water splits during the 2-, 10-, and 100-year storms from the main (curbed) roadway to the other two streets - one curbed, one uncurbed.
I assume that velocity, runoff volume, storm intensity, street cross sections, slopes, and other variables play a big role in how the water diverts, but I’m not sure how to set up this scenario in SSA. Do I somehow use a weir? Do I use an open channel, or user-defined channel? I have a subbasin area defined with my concentration point at the end of my main curbed street before the water splits off. I’m not sure where to go from here when it comes to inserting links, weirs, channels, etc.
how I can set this up? I’m not even sure it’s possible to have the software provide this type of calculation.
I have a few questions regarding spread/street capacity:
When calculating the spread at the catch basin locations, how does it determine the curb height?? Does it always assume 6"?? what if it is a roll curb??? is it olnly determined by the "throat height" of the inlet?? How can I calculate my spread on random spots throughout the street??
I have an acad document connected to some .shp files, which contain polygonal shapes with some meta-tags.
I want to achieve the following: draw a polygonal shape and select all the tangent areas (I already know how to do so)take a property of those areas and calculate an area-proportional [or: area weighted] average value (proportional to the partial area defined by the drawn polygonal shape). I tried to achieve this by splitting the objects and merging them again with defined splitting (area proportional) and merging (average) options. The problem is: splitting & merging doesn't work until I disconnect the data files (checking the objects out doesn't work) and even then I can't split the areas. And, more important: This doesn't create a weighted average and I don't even want to manipulate the objects! I just want to get one value out of all these steps.
I appended a screenshot of my file. E.g. I want to take the value 923.2 and multiply it with the corresponding area percentage it represents in the drawn shape. So the calculation would look something like 0.02*923.2 + 0.2*926 + 0.12*945,9 [...] until all the 100% are covered and I get one single representative value.
I use AutoCAD Civil 3D 2012 on an Intel Core i7, 12GB RAM, 64bit Win 7 Pro SP 1 PC.
I 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....
How to calculate the AREA of cut and fill analogous to the volume of cut and fill between surfaces, but instead only between the alignment and the road profile in the prolfile view. From what I've read of similar posts a few people have had the same question but have been instructed how to do it with volumes as opposed to area. Also how to insert a table of cut and fill area analogous to the one you can inset from the volumes dashboard.
I use Civil 3D 2011 and I am new to it. I have created a natural ground surface from survey points. Now i want to create a finished surface with a specific slope in a specific direction at a specific elevation and then to calculate cut and fill volume.
I can create a flat surface at a specific elevation. How to tilt this surface to a specific slope along a specific direction.
I need to have a subassembly for a superelevation where the lane and base slope to the left and the bottom of the sub-base will slope to the right. I was using the LanSuperelevationAOR subassembly, which worked fine with my superelevation when the lane, base and sub-base were all sloping the the left, now I need to edit the slope of the sub-base only to slope back to the right at a -2%.
Windows 7 x 64 8GB Ram Intel Xeon CRU 4 Core @ 3.07GHz Civil 3D 2012 .....
I want to generate a report by sample line station that gives me the cut/fill quantities between my assembly(s) sub-base links and the existing ground. I have section sheets cut with sample lines and the EG surface DREF'd. Am I correct in assuming that you need to create the sub-base surface, (for every corridor, I have 18), to be able to get the cut/fill volumes? The corridor is Xref'd into the section cut sheets, so no hope of generating a surface in the cut sheets from the corridor. Can you have the EG surface defined in the Edit Material List and the sub-base as a corridor shape and get the cut/fill volumes? I have tried and I get zeros in the earthworks report.
At my job site, they is about 20meter height of uneven rock surface in the excavation pit.
To calculate the volume ,I need to include this uneven rock surface wall.
For doing so,The sharp edge will displays in the cross section.
Because the uneven surface, I cannot create the surface with normal step.The TIn line will joins horizontally,not in vertical direction as is intended.
I've got a closed traverse that has all the elements, but when I try and analyze it, I get the dreaded error: Insufficient angles, distances or points to calculate this loop. Creating a Traverse for Adjustment: [URL]l and my screen capture looks very similar to his, but I'm not getting any results.
What are some workflows people are using for creating P&P sheets?
I have a project that is 8 miles long so I created all the profile views (18) in one base map drawing using the plan production tool and then they are xrefed into my individual sheets.
I'm finding that doing a save or regen take approx. 30 seconds each time. That seems unusually slow to me.
I asked my reseller about it, and their comment was "We wouldn't recommend that many profile views in one drawing".
I assumed (maybe falsely) that if the plan production tool allowed it, then it should work.
I am trying to xref a base drawing. But everytime I insert the drawing, the scale factor always comes up to be 12. I tried changing it, but it won't let me. I have attached an image of the problem I am getting.