What is the principle of pile driver? When it hits, it will smoke.

The principle of pile driver is to transfer energy to the piling hammer through hydraulic or mechanical transmission system, so that the piling hammer can produce high-speed and high-energy impact force, and then drive the pile into the ground. When the pile driver drives the pile into the ground, the pile will be deformed and displaced by the impact force. If the material of the pile is hard, it will be smashed at the top of the pile. This is because the impact force of the piling hammer exceeds the strength of the pile, resulting in cracking or crushing of the pile top. At the same time, because the pile top is broken or broken, the soil or rock in the pile will be splashed out, forming a smoking phenomenon. The pile driver drives the pile into the ground through high-speed and high-energy impact. The pile material is hard, so it will be smashed to smoke.