We have to talk about the impact roller

We have to talk about the impact roller

July 31, 2020

After a long period of epidemic control, according to the ministry of transport, from 0:00 on February 17, 2020 to the end of the epidemic prevention and control work, free access to the national highway again. At the same time, key projects have gradually resumed work in an all-round way, indicating that the control of the epidemic has achieved some success with the efforts of the whole country, but we still need to strengthen protection and resume work in a scientific way.

Epidemic prevention and resumption of work

& other; Shutdown order & throughout; While strengthening the protection work, we should resume work in a scientific and orderly way. We have to talk about impact rollers.

The impact roller is known as a time - pressing tool because of its three technical characteristics. See below for details:

Impact hydraulic ramming video graphic case

& have spent

& have spent volley impact roller intelligent small program

1. The impact depth of impact roller is large;

Impact roller impact impact depth of rolling, the foundation material can be spread in a large thickness. Impact roller impact roller impact impact depth of about 5 meters, effective impact depth of 2 meters, therefore, in the use of impact roller, one-time spread thickness can be increased according to the nature of basic materials, usually not less than 0.5 meters. Thus, the construction progress can be improved on the premise of ensuring the construction quality.

Impact depth of impact rolling

Using impact roller impact roller compaction effect of deep technical superiority, the foundation can be used directly impact roller impact roller compaction, the original foundation soil depth, all invisible or dig to expected then to dust or element stratified backfill soil compaction this time-consuming work of old foundation compaction method to get the change, not only save the construction cost, and speed up the construction progress.

Impact roller

2. Strong adaptability of impact roller;

The impact roller has strong adaptability to the compaction of foundation materials, and the high energy output of impact roller can relax the water content range of packing, which is beneficial to the engineering construction in the area with high underground water level. For example, the impact roller compacting the subgrade with water content ranging from 1% to 2% desert granular sand to 19% saturated clay can achieve the desired compaction effect.

Impact roller impact roller construction

At the same time, the gradation and thickness proportion of the foundation material by impact roller are enlarged. For example, impact roller impact rolling can crush the super-size stone, making the packing grading more reasonable, but also can make the rock rearrangement into a dense, locked and stable overall structure, improve the overall bearing capacity of the fill. Larger size stone materials are allowed, so some material costs can be saved and construction progress can be accelerated.

Impact roller impact crushing gravel

3. Good compaction effect of impact roller;

Impact roller “ Detectability enhanced feeding pressure ” The compaction defects can be found and eliminated in advance, and the compaction quality of the roadbed can be visually detected by the obtained settlement amount, and the roadbed can get a better compaction effect again in the detection.

Construction of impact roller

The good effect of impact roller compaction is reflected in the deep impact of compaction and can eliminate or weaken the inherent and artificial defects of the layered roller subgrade, which may occur in the foundation during the use of post-construction settlement to eliminate ahead of time. At the same time, the construction efficiency of impact roller is 2~4 times higher than that of vibration roller.

Impact roller impact roller construction

In addition, for the reconstruction of the old road with bad foundation, the impact roller can also be used for direct construction, while the old road surface crushing and foundation compaction, and the broken pieces can be directly compacted, as the foundation material, omit the excavation and filling two processes, reduce the project cost, but also shorten the maintenance period.

Impact roller impact rolling old road surface

Of course, in addition to understanding, mastering and using the impact roller this kind of deadline. Tool & throughout; To adjust the construction technology, we need to improve the labor efficiency through auxiliary measures and reasonable working process, especially to adjust the construction sequence and plan in a planned and scientific way, and by adjusting the allocation of manpower and material resources, to achieve the purpose of reasonably shortening the time limit.

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