'Ramps' in the Bible

On [the] right hand the brood rises up; {they put me to flight}, and they build up their {siege ramps} against me.

Look, the siege ramps have come up [to] the city to capture it, and the city has been given into the hand of the Chaldeans who are fighting against it, because of the sword, the famine, and the plague, and what you spoke happened, and look, you [are] seeing [it].

For thus says Yahweh, the God of Israel, concerning the houses of this city and concerning the houses of the kings of Judah, that were torn down [to make a defense] against the siege ramps and against the sword:

And the king of the north will come, and he will throw up siege ramps and capture a city of fortifications and the military forces of the south and {his choice troops} will not stand, for there is no strength [left] to resist.