I'm installing a 4m long retaining wall of gabion baskets in my garden. Each gabion is H: 1m, W: 1m, D: 0.45m, and they're being set in a trench of about 0.3m deep at the front, and 1m deep at the rear. Currently they're unfilled, and sitting on an uncompacted layer of gravel atop the usual soil and...
