Yes Dismantle the arch pole stone of the main arch ring until it is broken to the earth cofferdam and river bed from the demolition position, and continue to be demolished to the abutment from the main arch position. Excavators removed the stone arch bridge from the arch. "Excavators, also known as excavators, are earth-moving machines that use buckets to excavate materials above or below the bearing surface and load them into transport vehicles or unload them into the yard.