I'm not sold with the landing or launch pad theory, the planet is a very low gravity one, I'm no rocket scientist or mathematician so please do correct me if I'm wrong, but i don't think you'd need clamps similar to those we use on earth to launch a large space ship, it is only a 0.136G world with no atmosphere to cause friction upon launch, so I'm not sure there would be need for clamps?
Clamps might be useful to restrain the craft for loading and unloading?
The Docking Barrels in the Coriolis etc. at 0.10 G use docking restraints.
Accidental impact by unloading vehicle?