Digging out old sleepers

[pwerda]

I'm currently building replacing an old sleeper wall with blocks. My problem is I have 2 sleepers which are deep in the ground (about 4-5 cms exposed) and am unable to lever them out, There is a concrete slab on one side of the sleepers and about a metre high wall of earth on the other. I removed other sleeper by lever out using a crowbar, but these are too deep for me to get out.
If anyone has had some experience or ideas, I'd really appreciate knowing

[JDub]

Start digging

IF they are in a mile, you might get away with digging down around them and then cut them off below ground level

[Bleedin Thumb]

Yep break em up into splinters, attack the buggers, kill, kill, kill.
Get those white shoes off, put on some steel caps, spit on your hands....
Its always that last one that does you in.