instead using the spiral drill as part of the fuse to weld,

 

a long metal bar, that is equivalent to the length of the drill,

 

can slide down to meet the merging area, if more metal is needed.

 

both the welding machine and this metal bar, should be placed

behind the spiral drill, and its height lower than the

drill itself so not to be affecting the dig.

 

spiral drill should be able to move out of the way at the

merging point. so it will neeed to roll itself back, half a circle.

 

then it is up to the welding machine.

 

weld should attempt deepened welding, in order to hold the

weight of the ship. so that extra metal bar, to perhaps

weld twice, or more in depth, is needed....

 

welding machine hopefully can remove the dirt that is in front

of it as well. the drill can dig through and merge two walls

at a meeting point.

 

but the dirt/earth would be present there still.

 

so welding machine following the track, that in it must be a

drilling mechanism as well.

 

 

this can be tested on the surface prior.

 

 

so technically, the container is lifting up the dirt along with the ship.

 

 

how much of that dirt must be present,

 

for the ship to not crush the spiral drills another issue....

if that is an issue.

 

however, even with just the skeleton frame of my earlier design,

 

it should be able to lift the ship....

 

 

now to leave it to the experts to calculate all this.............. XD