The best way is to recess the head so it avoids damage when immo acting the ground. Not the target of this photo, but you can see the aluminium insert used on this splitter

You can fill the honeycombs around the hole with a mixture of resin and a compression resistant filler material like glass bubbles, cotton, ground glass or carbon fibers etc., effectively creating a crush resistant insert which bonds to the surface layers. Or you can glue a few small glass or carbon tubes into the honeycomb. Very pressure and crush resistant.