Autodesk Design Suite 3D - Planix Home Design Suite 3D Manuel de service télécharger pdf (Page 44)

Chapter 3 Performing Hydrologic Studies

To design a culvert (continued)

Steps

Use

to look up

8 Specify the flow rate for the culvert.

You can type a value directly, or you can calculate

a flow rate value by clicking Select to display the

Runoff Editor dialog box. From here, you can

display the Runoff Method Selection dialog box

to select an appropriate runoff method where you

can then either import or calculate the flow.

Specify the Flowrate

for a Culvert

9 Specify the Manning’s n roughness coefficient

value for the culvert.

You can type a value for Manning’s n, or you can

click Select and pick a Manning’s n value from a

list of standard values based on different types of

culvert materials.

Specify a Manning’s n

Roughness Coefficient

10 Specify the roadway elevation, the culvert inlet

elevation, and the culvert outlet elevation.

11 Click the Settings button to display the Culvert

Settings dialog box to specify inlet, outlet, or

optimum control conditions, entrance losses, flow

rate ranges, and number of culvert barrels.

Change the Culvert

Settings

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Autodesk Design Suite 3D - Planix Home Design Suite 3D Manuel de service Page 44