What materials need to tamper
This process is called ramming compaction foundation. Before ramming with stones, with four people carrying a ram. Now there is a rammer, more simple.
Dig into the required depth. And then put to reinforce the foundation, and then the wall so as not to affect the safety of buildings after land subsidence.
It refers to the use of tamping tamping compaction.For example, when you build a house, you have to dig the ground first.
