GrimCo
Hero
Reading it RAW, you should be able to. It says - springs around and above you. Nothing in the description says anything about it creating floor or going below ground- A 10-foot-radius immobile dome of force springs into existence around and above you and remains stationary for the duration.Can you just dig under the edge of a tiny hut? It creates a dome shaped force. Is that a globe that surrounds you underground as well?
In comparison, 3e description - You create an unmoving, opaque sphere of force of any color you desire around yourself. Half the sphere projects above the ground, and the lower hemisphere passes through the ground.
Tiny hut isn't that overpowered. Sure, you can't be hit by object or spell. But you can't shoot from inside ether.