This design has a problem. The tensile strength of ice is not high enough to contain the required 12psi in a dome of the size described. I suppose you could run it at a lower pressure but then going EVA suite less would not be possible. The interior would have to be maintained below freezing to ensure structural integrity. Building it would provide shielding but not a comfortable environment for working. A better solution would be a frozen water dome about 25 ft thick.Then 12psi pressure could be maintained by the weight and strength of the ice which is much higher in compression. The low range for tensile strength of ice is only about 100 psi the low end of compressive strength is about 725psi. By using some bubble pack type internal insulation inside the dome the entire dome could be heated making for a nice place to grow crops etc.