1. Preparation for dynamic compaction construction.
The basic working principle of dynamic compaction method is to make the rammer fall from high altitude for many times to strengthen the construction foundation. Its operation process is relatively simple, but it may affect the stability of the base due to the nature of foundation soil and other factors, such as human factors. Whether the foundation is firm and stable enough has a significant impact on the superstructure, so we must make perfect preparations before construction.
First of all, the construction site shall be subject to field investigation, which mainly includes terrain, terrain, nature of foundation soil, water content, transportation, etc. To explore the construction site, on the one hand, the construction team should be familiar with the construction site enough to facilitate the construction control; On the other hand, according to the survey data and information results, formulate a detailed dynamic compaction construction scheme and determine the compaction times, so as to achieve better construction effect.
2. Trial compaction construction.
The purpose of trial compaction construction is to improve the accuracy of compaction data, ensure that the construction effect can meet the design requirements, and create a stable foundation for subsequent construction work. After the trial tamping, the tamping times, tamping degree and other data of this trial tamping shall be analyzed accordingly to judge whether the effect of this trial tamping meets the foundation bearing capacity and stability required by the design scheme. If the requirements are met, the formal construction can be carried out. If the design requirements are not met, the reasons shall be found out according to the data results, the design scheme shall be adjusted, and the next trial compaction construction shall be carried out.
3. Compaction construction.
During the actual engineering operation, the tamping times shall be determined according to the engineering requirements and foundation properties. Generally, only one tamping can not meet the design requirements. Generally, 2 ~ 3 tamping shall be carried out, and the tamping energy of each tamping is different. In this process, the construction team should pay attention to the quality and specification of the rammer and control the height and falling speed of the rammer to ensure that after the completion of tamping construction times, all parameters of the foundation can meet the design requirements.
The above is a detailed introduction to the lease of dynamic compaction machine. I hope it will be helpful to you If you have any questions, please contact us We will provide you with professional service http://www.sddhfjx.cn