Through the previous introduction, we know that the dynamic compaction foundation is very important to the dynamic compaction. The stability of the dynamic compaction foundation ensures the safety and integrity of the dynamic compaction construction. Therefore, the dynamic compaction foundation reinforcement is our top priority. Dynamic consolidation method is also known as dynamic consolidation method. It is to free drop a heavy hammer from a high place to achieve the effect of ramming the foundation. In this way, the strength of foundation soil can be improved, and the compressibility can be reduced, and the collapsibility of loess can be eliminated to achieve the purpose of foundation reinforcement. Using heavy hammer to impact soil particles can make them break or produce relative movement between water, realize microstructure damage, and make some gases in the pores quickly compress or discharge, and the pore volume decreases, so it is easy to form a dense soil structure. At present, we divide the dynamic consolidation process into the following four stages: dynamic compaction machine rental
(1) Tamping is a process of energy transformation. At the same time of ramming, it is accompanied by forced compression or vibration compaction, so that the gas is discharged;
(2) The soil structure of dynamic compaction foundation is damaged or liquefied, which makes the strength decrease or shear strength lose;
(3) The dynamic compaction foundation reinforcement can realize drainage consolidation and compaction, change the permeability, further develop the soil cracks, and improve the soil strength;
(4) At the same time, thixotropic recovery makes consolidation compaction, including a part of free water into membrane water, and the strength of soil continues to improve.
Through the reinforcement of dynamic compaction foundation, the dynamic compaction foundation is more stable. This method has been widely used in Subgrade Engineering in loess area, and it will play an effective role in the future.