Customizable struts for regolith-shielded dugout houses

Angled struts are used to create the roof of a dugout shelter dug into the Martian surface. Excavated regolith is piled on top of the struts which acts as a radiation shield for the inhabitants.

The design is customizable, which allows the width, angle, wall thickness, bin (the things that hold the regolith) thickness to be optimized by the martian crew based on geophysical properties of the local regolith.

*EDIT (2014JUN01) Added support for model making and sheet building. Because if I