What is the working principle of hydraulic rammer? What is compaction effect?

Working principle of hydraulic rammer;

According to the different falling modes of the hammer body, the working modes of the high-speed hydraulic compactor can be divided into free falling hammer type and forced falling hammer type, and its basic working schematic diagram is given. Free drop hammer (single action): the hydraulic cylinder lifts the hammer body to a set height and releases it, so that the acting hammer head can fall freely; After the impact hammer falls, it impacts the assembly of the grounding hammer and the tamping plate through the hammer pad, which drives the tamping plate to tamp the ground.

Forced drop hammer (double-acting): the hydraulic cylinder lifts the hammer head to a set height, and then quickly applies force in the opposite direction, so that the acted hammer head can fall under the combined action of gravity and hydraulic cylinder thrust; After the impact hammer falls, it impacts the assembly of the grounding hammer and the tamping plate through the hammer pad to drive the grounding hammer to tamp the ground.

The construction effect of hydraulic rammer is good, the effective influence depth is 4m, and the influence depth is10m.