GGU-STABILITY: Define slip bodies using the mouse (Ex. 2)

To enter a slip body polygon, go to "Define new" in the "Slip body" menu. Now click on the points of a slip body. If you have executed a wrong mouse click, which has "ruined" your slip body, simply press the [Backspace] key and you will return to the previous condition.

After entering the final slip body point you must press the [Return] key to indicate to the program that the slip body entry is complete..

You can then immediately commence input of the next slip body. To do this you can also use the "Slip body/Duplicate" menu item to reproduce current slip bodies and then edit selected slip body points. The actions described can also be performed on previously analysed slip bodies.

To ensure an intersection with the surface is achieved, you can place the first and the last slip body point slightly above surface level. The program automatically generates the appropriate intersections once [Return] has been pressed. It is difficult to cleanly position slip body points on layer boundaries. To simplify this, you can also move the mouse pointer using the arrow keys. Pressing the left and right mouse buttons can also be carried out using the keyboard:

• [Home] key = press left mouse button

• [End] key = press right mouse button

If you cannot precisely determine which soil properties are valid at the mouse pointer, press [Shift] and the [F4] function key. The information will be presented in a dialog box. If you need to determine the inclination of slip body lines, press [Shift] and the [F5] function key. A further simplification of precise slip body point input can be had by activating the zoom function ("Graphics preferences/Zoom info" menu item).