Dynamic compaction construction method is widely used in various foundation treatment projects, in which the soft soil foundation construction of highway engineering properly adopts the dynamic compaction skill plan. The order of foundation reinforcement in dynamic compaction construction is to reinforce the deep soil first, then the middle soil and the surface soil. What is the construction management process for the dynamic compaction foundation of highway construction project?
强夯为了遏制各种因素对强夯地基带来的影响，首先在公路工程施工前会对地质状况、地表和地下的结构进行慎重地勘测，如出问题可采纳相应方式处理。为防止破坏，前期调查应重 点调查地下管网线路及构筑物的具 体 位置。
In order to contain the influence of various factors on the dynamic compaction foundation, the geological conditions, surface and underground structures will be carefully investigated before the construction of highway engineering. If there are problems, the corresponding methods can be adopted. In order to prevent damage, the early investigation should focus on the specific location of underground pipe network lines and structures.
Before arriving at the construction site, the bulldozer should be used to level the highway construction site, so that it is very convenient for the dynamic compaction machine to enter the site, and the dynamic compaction construction is more convenient. The dynamic compaction company also needs to accurately calculate the ground settlement value after compaction, and recognize the ground elevation, so it is necessary to do a good job in the test lofting operation according to the dynamic compaction design plan.
The gravity of the dynamic compaction machine itself will crush the foundation, so it is necessary to lay gravel. The purpose of doing so is not only to greatly enhance the bearing capacity of the foundation soil layer, but also to prevent the surface soil layer from loosening and losing hydrostatic pressure.
In the construction stage of highway engineering compaction point, lime or wooden piles must be selected to accurately mark the compaction position before dynamic compaction of foundation, so as to ensure that the error is less than 5cm. There are three steps in the whole stage: 1. Leveling the site before construction, and retesting the site elevation at the same time. 2. Backfill the tamping pit and level the place after the completion of dynamic compaction. 3. Full tamping construction should be carried out, and the dropping distance and quantity of tamping hammer should be well controlled.