Self standing panels for silage pit end wall?

[SJamieson]

We have here an indoor silage pit. It is used as self feed for 2 groups of cattle, which feed from each end.
One end of the pit needs to have a removable end wall to allow that face to be grazed- too much pit space would be used having a slope at both ends.

Any suggestions on what to use? Will self standing L panels work - either with the flat bottom exposed or under the clamp? How high could you safely build up and roll against them?

 

[Tarw Coch]

I have 3.5m high free standing panels from JP concrete dividing a silage pit and they don’t move with nothing one side.
@elub recommend them although I haven’t seen him on here lately but I seem to recall him saying they stacked silage to something like 25 foot and they don’t move.

As far as I can tell the JP concrete ones are the same as unbrako.

 

[Tarw Coch]

Not so much A shape, more rocket shape, they’re 4 foot square at the bottom up to about 18 inches they then taper in from both sides at about 45 degrees to about 6 inches thick with a very slight taper to about 4inches at the top .