'Mounds' in the Bible

Neither shall Pharaoh with his mighty army and great company help him in the war, when they cast up mounds and build forts, to cut off many persons.

In his right hand was the divination for Jerusalem, to set battering rams, to open the mouth in the slaughter, to lift up the voice with shouting, to set battering rams against the gates, to cast up mounds, to build forts.