Delft University of Technology
Faculty Mechanical, Maritime and Materials Engineering Transport Technology
J.K. van der Hoeven Rekenmodel 100% gevulde, schuin opgestelde schroeftransporteur Computer program, Report 97.3.TT.4887, Transport Engineering and Logistics.
In tunnel boring machines with EPB-shield often a srew conveyor is used for transport of soil out of the work chamber. However, it is not known why this conveyor is working in this situation.
In the literature we could not find sufficient theoretical models which describe the flow of material through the screw conveyor.
This thesis gives a new theoretical model of the 100% filled screw conveyor, which also has an angle of inclination. The model is written in a few computer program files and can be used by the software called MATLAB.
From the computer program we know that the pressure in the work chamber does not influence on the installed driving power of the screw. Calculation of two applications of the screw conveyor tells us that the model is probably a good model, because the results are nearly the same as the results given in literature.
Reports on Transport Engineering and Logistics (in Dutch)
