Duct Bank Laying


Duct bank laying is a procedure in which, by selecting the nodal elements, you define its future path, and by accepting the defined path, the program generates the duct bank.

When defining the path, the program connects selected nodal elements using shortest possible path along the route (procedure 1).
When you need to assign the path so that it deviates from the shortest path, do it in the manner described in the "procedure 2" on this page.

A precondition for duct bank laying is to have the trench routes and manholes placed in the site plan.
Duct bank is laid along the routes in the site plan drawing.
Duct bank properties are defined in relation to the command being used for duct bank laying (designed, existing or predefined).
These properties can be changed later through the Properties window.

Duct bank laying command can be run in three ways:


Procedure 1

Note:

The following text describes the laying of duct bank using Duct bank (designed) command. The laying procedure is the same for all three commands. The only difference is in the properties that the laid duct bank will have in the end. These properties can be seen in the Properties window. Properties can be, for example, the number of ducts,  duct type, year built etc.


From the main menu run  Conduit > Duct Ban (designed) command.

The command is now active. The cursor is displayed as a small square with the text next to it instructing you to Select nodal infrastructure element. Select the nodal element by clicking on the manhole symbol (or its label). Red rectangle appears signaling that you have properly selected the nodal element (Figure 1).

kanalizacija2.png

Figure 1

Now click again on the next manhole symbol to select the next nodal element (manhole).

After selecting the second nodal element, second red rectangle is displayed, connected by a red line with the previous one. Red lines and rectangles are temporary and are displayed while in command (command is active). They represent the path of the future duct bank that’s being laid (Figure 2).

kanalizacija3.png

Figure 2

End the command by right-clicking or pressing the ENTER key.
The program automatically draws the duct bank along the assigned path.
Duct bank with its label appears in the site plan (Figure 3).
The duct bank is located at its default layer.
Line thickness and color are determined by the layer settings.

kanalizacija4.png

Figure 3


Procedure 2
(deviation from the shortest path)

Note:

In this example, we connect  manhole MH1 and MH3 with the duct bank , bypassing the MH2 manhole.
We will make the connection by route that passes over the manholes (across the street).


From the main menu run  Conduit > Duct Bank (designed) command.

The command is now active. The cursor is displayed as a small square with the text next to it asking you to Select nodal infrastructure element.
Select the nodal element by clicking on the manhole symbol (or its label). Red rectangle appears signaling that you have properly selected the nodal element (Figure 4).

kanalizacija_skretanje_1.png

Figure 4

The program expects you to indicate the next nodal element (Figure 5).

kanalizacija_skretanje_2.png

Figure 5


This requirement is always visible at the command line along with the additional command option.
In this case, the additional option is run by pressing the letter T (Figure 6).

komandna_linija.png

Figure 6

With one pressing of the letter T (or by entering it in the command line) , you activate additional command option and
you can now select the route-point with no objects (no manholes).

Click on the route-point to select it (Figure 7).

kanalizacija_skretanje_3.png

Figure 7

The second red rectangle is displayed, which is now connected by a red line with the previous one.
Red lines and rectangles are temporary and are displayed while in command (command is active).
They represent a path section of the future duct bank that’s being laid (Figure 8).

kanalizacija_skretanje_4.png

Figure 8

Again, by pressing the letter T, you enable the selection of the next route-point (Figure 9).

Note:

At this point you could immediately select manhole MH3, as the path from the previously selected nodal element to the manhole is the shortest possible, so the cable would pass that way.
In the example, for demonstration purposes, we selected yet another nodal element.


kanalizacija_skretanje_5.png

Figure 9

The third red rectangle is displayed, which is now connected by a red line with the previous one. (Figure 10)

kanalizacija_skretanje_6.png

Figure 10

Now you can select the last nodal element of the route.
This time you select the manhole symbol, so there is no need to run additional command options.

kanalizacija_skretanje_7.png

Figure 11

The entire path of the future duct bank is drawn with a red line.
End the command by right-clicking (or pressing the ENTER key).
Duct bank with the corresponding label is generated along the path (Figure 12).

kanalizacija_skretanje_8.png

Figure 12

Additional information on the principles of linear infrastructure laying in TeleCAD-GIS
are on Laying Linear Infrastructure page.