Foundation
Any permanent or semi-permanent structure on the surface of Mars will need some type of foundation. A foundation anchors a structure to the ground, preferably to the bedrock. This stabilizes the structure against the affects of gravity, wind, and ground movements due to changes in ground moisture (water and carbon dioxide ice).
Contents
Unique Martian Considerations
The environment of Mars presents certain unique factors for foundation design.
Reduced Gravity
The lower gravity means that Martian foundations need not be as strong or thick as terrestrial counterparts.
Low Air Pressure
Low air pressure means that the Martian winds have a greatly reduced effect upon structures compared to terrestrial winds of the same speeds.
Extensive Permafrost
It has been suggested that much of the surface is a sort of permafrost. Heat generated by structures could cause the water or carbon dioxide in the permafrost to sublimate, resulting in settling of the ground. Any settlement on this type of ground will need to take measures to protect against this possibility.
Types of Foundations
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Piles
Wall
Slab
Footing
Open Issues
- How much additional force does the dust in a dust storm exert on a structure v.s. the wind alone?
- How much on the surface is actually permafrost?
- How deep is the bedrock in likely settlement areas?
