Watery grave for bramble

Jenny Ives wrote:We are on a virgin plot.  Brambles are choking out the grapevines.

We are not going to remove all the bramble because it is nice for birds and berries.  We do however have mountains of bramble cuttings to deal with.  We don't / can't burn them.  So we are burying them 2 foot underground and thought it could be the first layer of a huggle bed.

Except the hole filled with water. We are in Portugal.  Hot dry summers so the water will be useful later. Hubby forged ahead and piled in the bramble and we are leaving it for about a month to dry off or rot down and will start the next layer. We have half rotting timber to gon next. Followed by olive tree prunings then we will add horse manure and cover with soil.

Do you think this will work?

Hobestly it feels like we have a swamp on our hands. Is huggle they way tovdeal with it?