What are the advantages of rapid impact compaction?

Rapid impact compaction is a new construction technology, which is the construction process of rapid impact with rapid impact compactor. The rapid impact compaction has good mobility, and the compaction energy can be adjusted according to the actual needs at any time. It is very suitable for compaction in the case of narrow working space, local high fill, abutment back, culvert side backfill, etc.

Advantages of the rapid impact compactor

compared with the traditional subgrade construction technology (such as heavy hammer, dynamic compaction, etc.), the compaction operation carried out by the rapid impact compactor can not only effectively ensure the compaction effect, but also well avoid the shear damage of different filling layers, but also has the advantages of relatively long compaction time and small peak force. From the compaction effect of ordinary roller, the penetration force of rapid impact compactor is uniform and strong, which is not easy to produce surface hardening in the base treatment, making the subgrade compaction more uniform and deeper.

The rammer, ramming plate, ramming frame, hydraulic drive equipment and electrical system group constitute a rapid impact compactor.

Rapid impact compactor includes free fall compaction and forced accelerated compaction. Free fall compaction refers to lifting the hammer to a certain height with a hydraulic device and releasing it. Then, under the combined action of gravity and hydraulic pressure, the hammer accelerates its fall and hits the tamping plate with buffer cushion on the working face. Through the tamping plate, the tamping force of the hammer is transmitted to the working face, and finally the tamping effect is completed; Forced accelerated compaction is to apply a reverse speed to the hammer body while releasing it to accelerate its fall. When the hammer pad is under pressure, hit the components of the hammer body and the ramming plate to make the ramming plate compact the ground. High speed hydraulic compactor is actually a compaction machine that uses the combination of gravity and variable force of the machine to compress the soil, which can also be called dynamic compaction technology.

Its working principle is: on the working surface that needs to be carried out, under the action of gravity and hydraulic pressure of the high-speed hydraulic tamper, the tamper falls and tamps. At the same time, the hydraulic equipment is used to quickly fall and repeatedly rise the tamper. Under the traction of the loader or the supporting device of the excavator, the tamping equipment can achieve the purpose of quickly changing the tamping position, The compaction operation shall be carried out flexibly for the subgrade joint part such as three back backfill, so as to minimize the settlement after the joint part, so as to improve the overall construction quality of the subgrade.