Tunnel Design

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MOUS_ICO Menu: Tunnel > Tunnel Design

MOUS_ICO Toolbar: Tunnel:  Tunnel Design


Define Tunnel Profile Geometry

This is the !!dialog!! where you define the tunnel !!geometry!!.

On the left-hand side of the dialog, you find the “tunnel structure element tree”. You should use this tree-control to define your tunnel project.

On the right-hand side in this dialog, there is a cross-section viewer for the tunnel. You should use this viewer to inspect the results of what you define in the tree-control.

The dialog top-menu

At the top of this dialog you find a small menu:

The following menu items are included in the Project menu:

The following menu items are included in the Profiles menu:

When selecting Help you get this help-text.

The tunnel structure element tree

This tree-control is the place where you design your tunnel.

A tunnel project can consist of only one tunnel at a time. Each tunnel is designed along one reference line. The reference line is defined in the road project (typically the centerline of the road).

The reference line for the tunnel is shown above the tunnel structure element tree.

The tunnel is divided into several structural elements. The following elements are supported:

To define a new tunnel element, you have to go to the folder symbol for the actual tunnel element and click on the New button or click on the right mouse button and choose New. When you do so, a dialog opens in which you can define the new tunnel element.

The dialogs for the different tunnel elements are floating dialogs, so you don´t have to close them when you move on to the next type of tunnel element to define.

To edit an existing tunnel element, you simply choose the element in question and click on the Edit button or click on the right mouse button and choose Edit.

The cross-section viewer

You should use this cross-section viewer to actively check the cross-sections of the tunnel while working with the tunnel geometry.

You can step along the road by using the spin buttons for the Chainage no below the cross-section viewer. Alternatively, you can write a chainage number in the text field and tab out of the text field. The Interval value decides the step size for the spin buttons.

The cross-section viewer tool-buttons

The tool-buttons placed above the cross-section view have the following functionality:

Measure a distance in the cross-section viewer. Click in the cross-section viewer to see a line stretching from the point you clicked to the mouse location. The length of the line is dynamically updated on the status bar.

Opens the Cross-Section Area Calculation dialog

Opens the attribute dialog where you can turn on and off information on the cross-section image.

Zoom button: Click the left mouse button in the cross-section view, hold it down, and drag a square across the area you want to zoom in.

Resets the zooming and panning in the cross-section view

Pans the cross-section view. Click the left mouse button in the cross-section view, hold it down, and drag the image in the direction you want to move it.

Toggles on and off a 1×1 meter mesh in the cross-section view.

The status bar

The following values are shown in the status bar at the bottom of the dialog (from left to right). Cross-section calculation status

All values refer to the cross-section shown in the cross-section viewer.

Dependencies between the tunnel structure elements

The tunnel structure elements are dependent on each other and of the road profile. These are the dependencies:

The specification of the following tunnel structure elements canít be overlapping (defined at the same chainage number):

Several free space elements and bolts can be defined at the same chainage number (no limitation).

There can be gaps in the chainage intervals between adjacent tunnel structure elements of the same type, but generally, the stationing/chainage interval for the previous tunnel element should stop at the start chainage number for the following tunnel element.

Gaps in the chainage intervals for the inner profile lead to breaks in the tunnel definition.

Requirements for the road project

The tunnel is connected to the road. The road is the master and the tunnel is the slave. The road project must fulfill certain requirements so that it will be possible to connect the tunnel to the road. These are the requirements:

These are the requirements:

Note: If the curbstone line is not parallel with the reference line of the road, this line must be defined further out from the tunnel wall in the cross-section, so that the pavement will not be too narrow: