Pole shoe
A pile shoe (also: pole shoe ) is a tapered steel cap of a pile , which for deep foundations of buildings in the background rammed is, in particular for foundation of bridges in the river bed . According to numerous finds , the technology was already widespread in Roman bridge building. The basic shape of the conical attachments has changed little to this day. The entirety of the foundation piles is called the pile grid .
Pile shoes often have 4 tabs each with a fastening hole for the insertion of a nail, the head of which should protrude as little as possible to make it easier to drive the pile into the ground. An embodiment is shown with 2 tabs, each with 2 bores. The tip of the pole shoe is sometimes a hollow pyramid into which the top of the pole engages in a form-fitting manner.
Pole shoes can be made from steel rods by forging, the hollow point being formed on the horn of an anvil. Pile shoes can, however, also be produced by connecting four pieces of sheet metal cut to a corresponding point by melting welding .
