You can add hydraulic property data to AutoCAD Civil 3D pipe networks in a few different ways.
Pipe networks created in AutoCAD Civil 3D do not contain values for hydraulic property information, such as hydraulic grade lines (HGL) and energy grade lines (EGL), by default. While the pipe networks contain the properties for this type of information, the hydraulic properties are set to zero or are “not set” by default.
You can add hydraulic property data to a AutoCAD Civil 3D pipe network using the following methods:
- by exporting the pipe network to an .stm file, importing that file into the Storm Sewers Extension, and using the Storm Sewers Extension to add hydraulic properties to the pipe network
You can use the Storm Sewers Extension to perform the hydraulic analysis on the pipe run. Once you have done this, you can then import the .stm file back into AutoCAD Civil 3D. At this point, the AutoCAD Civil 3D pipe network will containing the valid hydraulic property data (HGL, EGL, and so on) that it got from the Storm Sewers Extension.
- You can also obtain hydraulic property data by importing an .xml file that contains valid hydraulic property information.
- You can also enter your own values for hydraulic properties using the Panorama. This may be useful if you intend to later import the pipe network data into some other application, such as the Storm Sewers Extension, to perform hydraulic analysis.
Once you have the hydraulic property data in a AutoCAD Civil 3D pipe network, you can display, edit, and label the hydraulic grade lines and energy grade lines in profile views. You can also view and edit the specific hydraulic property data values on the pipe and structure Properties dialog boxes and vistas.
When you add hydraulic analysis data to AutoCAD Civil 3D pipe networks, the following hydraulic properties are populated with valid values for pipes and structures:
| Hydraulic Property | Available for... |
|---|---|
| hydraulic grade line | pipes and structures |
| energy grade line | pipes and structures |
| flow rate | pipes |
| junction loss | pipes |
| return period | pipes |
| known capacity | structures |
| bypass target | structures |
In AutoCAD Civil 3D, hydraulic grade lines and energy grade lines are displayed as a straight line through structures, connected between the HGL Up or EGL Up property from one pipe to the HGL Down or EGL Down property of the next pipe. See Viewing Hydraulic Data in Profile Views for an illustration of a hydraulic grade line and an energy grade line displayed in a profile view.
You can also create label styles that display labels for hydraulic properties, such as HGL and EGL. For more information, see Labeling Hydraulic Properties in Pipe Networks.
To add hydraulic property data to an AutoCAD Civil 3D pipe network
- In AutoCAD Civil 3D, export the pipe network to an .stm file. For more information, see Exporting AutoCAD Civil 3D Pipe Network Data to an .stm File.
- Launch the Storm Sewers Extension. For more information, see Launching the Storm Sewers Extension.
- In the Storm Sewers extension, perform the hydraulic analysis tasks on the pipe network. This adds valid hydraulic property data (HGL, EGL) to the pipe network. For more information, see the Storm Sewers extension Help.
- Export the pipe network from Storm Sewers to an .stm file. For more information, see the Storm Sewers extension Help.
In AutoCAD Civil 3D, import the .stm file that now contains valid hydraulic property data. For more information, see Importing Pipe Network Data from an .stm File
Verify that the AutoCAD Civil 3D pipe network contains valid HGL and EGL data. See verifying hydraulic property data.
To verify hydraulic property data
- In AutoCAD Civil 3D, right-click a part in the pipe network and select Pipe Properties or Structure Properties.
- On the Pipe Properties or Structure Properties dialog box, click the Part Properties tab.
Note the items listed in the Hydraulic Properties section. The values listed here are set when the pipe network is imported from the .stm file. For more information on these properties, see the Pipe Properties dialog box or the Structure Properties dialog box.