AutoCAD Civil 3D :: Hydrographs - Calculation Of Basin Slope
Feb 22, 2012
In 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?
Can you not perform a slope-slope intercept to place a PVI? Essentially holding the sta and elev of the PVI's directly before and after the PVI of interest and changing the grade in and out so that the sta and elev of the PVI of interest are changed.
Can't figure out how to match gutter slope to outside lane super subassembly slope. Have super eop targeting a feature line with elevations, but when i check section editor gutter slope doesn't match pavement slope.
Civil3D 2013 Windows 7, 64 bit Intel i7 2600 @ 3.40Ghz 16 GB RAM Nvidia Quadro 600
i need a shoulder subassembly that varies slope in relation to the lane superelevation slope. i know that i can get a subassembly for the shoulder that will follow the alignment superelevation xml data but in my case i can't use it because we are just adding a shoulder to an existing road. we're not changing the superelevation of the existing road, just milling and overlaying and widening. right now i've created a profile of the outside edge of the shoulder that gives me the correct shoulder slope but whenever i change my centerline profile i have to redo the shoulder profiles which is a real time suck.
I am in the process of transitioning from land desktop to Civil 3D. I design roads in steep terrain and sometimes need to have my catch (daylight) slopes change. So my question is, how do I change a daylight slope at a specified depth? For example, from the shoulder of the road I want a 3:1 fill slope to a depth of 10 feet than change to a 2:1 slope until it catches the existing surface. Can this be built into a subassembly such that if the fill is less than 10 feet it will daylight correctly at a 3:1 and if the depth is greater than 10 feet then it carries the 3:1 for 10 vertical feet and then changes to the 2:1 until it daylights?
below is a portion of a profile i am working that shows the bottom of the catch basins not at the correct elevation the correct elevation is at the pipe invert the dashed line by checking the structure properties the cb are at the inverts are correct but the actual drawing is not shown correctly.
When i am laying out a storm sewer pipe network with structure sizes that vary i notice no matter what the structure size it always appears the same size in plan view. How to fix this or is this one of those things that its always shown the same size for all and only different in profile view.
I 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.
volume 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?
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?
I 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.
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.
HP DV7 Laptop Intel Core i7-3820QM 3rd Generation Quad Core 2.7 GHZ CPU 16 GB DDR3 RAM ( 2 DIMM ) / 180 GB SSD Nvidia GeForce 650M Graphics w/2 GB Memory Windows 7 Professional 64 bit / AutoCAD Civil 3D 2014
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
I'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?
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....
What 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.
The undefined areas of a slope map now have a hatch to them and are plotting black. This map was created a month ago in 2012 without issues, upgraded to 2014 and now the undefined range has hatch!
I have a simple driveway corridor along a steep hillside. For cut, I would like to have a negative slope away from the shoulder edge. I have tried numerous approaches and all 'cut' reverts to positive. I searched and found no clear answer. It's such a short driveway, I can 'fake' it in, but I would like to calculate quantities.
I've got a surface that displays contours correctly. When I go to Surface Properties-Analysis tab, I can set an arbitrary number of ranges for contours, directions, elevations, slope arrows, etc, and they display correctly.
I can set an arbitrary number of ranges in the slope range box too, but when I click the Analyze button, Civil 3D 2014 hotfix 1 only displays two slope ranges: 0% to 2979736.0077% and 2979736.0077% to 99999900.0001%. (!)
Can I automatically have my slope patterns introduced with a command like matchprop or something similar ?
I have 284 streets and it's getting ages to finish the slope patterns on every street. Civil Engineer / Infrastructure of metropolitan transports. URL....
I'm trying to match an existing slope design that has a soft rounded off top of slope. The toe (green) is a feature line and I'm using a 1-1/2:1 slope to natural surface grading rule. You can see the rounded contours in blue that I am trying to match.