We all know that rapid impact compactors are used to deal with road subgrades and foundations, so some friends do not know where they can be used on highways. The following is a brief introduction to the application fields of rapid impact compactors. The rapid impact compactor installed on the loader The construction effect of hydraulic compactor in various fields.

The construction field of rapid impact compactor is very extensive. Rapid impact compaction machine can be seen on roads, railways, and even airports and ports. Sometimes it is installed on loaders and excavators. , Most of them are rapid impact compactors used for loaders, and the models are mostly Taian Evergrande HC36 and HC42.

Reinforcement of V-shaped ditch with filling length less than 20 m

1) The original road surface shall be leveled after clearing the surface, rolled before filling, and the original road surface shall be fully rammed with the third gear (up to high power) of a rapid impact compaction machine, and each tamping point shall be rammed 12 times.

2) Every time the backfill soil is raised by 2m, the rapid impact compaction will ram the compacted roadbed and add ribs. The scope of reinforcement is the full width of the roadbed. The points are distributed in a triangle with a distance of 1.5m between the hammer centers of the rapid impact compaction equipment. Ramming 12 times. The rapid impact compactor has three gears. When the subgrade is backfilled to a sufficient length, the use of basic rolling equipment can ensure the actual effect of compaction, and no further ribbing will be carried out.

Reinforcing the "three backs" backfill

The rapid impact compaction machine is ribbed, which can reasonably be manipulated to move down after work, and enhance the work efficiency.

Bridge and culvert back control points

The points can be arranged more than 30cm away from the back of the bridge and culvert. The points are distributed in a triangle with a distance of 1.5m along the center of the rapid impact compactor. The range of ramming is to widen the back of the platform to 2m of the subgrade. Tamper point rammer 9 times. When the first hammer is close to the building wall, the second gear of the rapid impact compactor can be used to carry out tamping. The impact energy can reach the maximum power, and the actual effect of engineering construction is remarkable.

Retaining Wall Back Control Points

The points are arranged more than 50cm away from the back of the mortar retaining wall, and the points are distributed in a triangle with a distance of 1.5m along the center of the rapid impact compaction machine. times, each ramming point ramming hits 9 times. The ramming point of the rapid impact compaction close to the wall can adjust the ramming energy to 50% to reduce the damage to the retaining wall structure. The second row can be constructed according to the rated ramming energy.

Reinforcing the junction of the new and old roadbeds

The rapid impact compaction machine is distributed within the range of 4m at the junction of the old and new subgrades. The points are distributed in a triangle with a distance of 1.5m along the center of the hammer. Each time the backfill is lifted 2m, the ramming is performed once, and each ramming point is rammed 12 times.

The above content is to deal with various problems of rapid impact compactor in highway construction, and to show the basic construction data, then why should the roadbed of the highway be compacted? What is the role of subgrade compaction? Let's expand our knowledge and briefly introduce the role of subgrade compaction.

The role of roadbed compaction

Compaction further increases the compressive strength of the soil, significantly reduces the plastic deformation of the soil foundation, reduces the water absorption of the soil, and reduces the relative height of the pore-shaped elevation. Compaction is an effective strategy for economic development to improve the engineering properties of sandy soil. The same subgrade floor material can generate different physical and mechanical index values without a balanced compaction effect. During the service life of the pavement construction work, there will be a trend of change in the development trend of the poor situation, which is easy to cause various road diseases and insect pests. condition, which reflects that the reliability and durability of pavement structural features are manipulated by compaction rationalization. In the 50cm deep area below the top of the subgrade, the compaction degree control must be strictly carried out. The minimum compaction degree control is to detect the degree of effectiveness in the compaction work, that is, the degree of uneven compaction shall not be less than the minimum degree of compaction. Compaction specification, in order to obtain a uniform and effective compaction degree, it is necessary to select a suitable compaction moisture content and a reasonable stirring method, rolling method, etc.