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Scientific selection and application field of small roller

The structure, specifications, parameters and auxiliary functions of small rollers have made great progress in the quality and service life of the whole machine with the optimization of design concepts and manufacturing equipment. From the perspective of basic compaction, which brand and model of small rollers should be selected under specific conditions should consider the following factors:

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1、 Compaction content and mechanization degree of foundation works

The compaction content of foundation works basically determines the limitations of paving materials, filling scale, mechanical force application and traction conditions on the type of roller. For general earth-rock fill works, various road rollers and fill slope rollers above heavy duty can be selected; For the compaction of asphalt concrete pavement, the tandem vibratory roller or tandem static roller is often selected, and the tyre roller is used for sealing and compaction; Narrow roads shall be compacted with small self-propelled vibratory roller or walking vibratory roller; For the pipeline cable burying structure and trench works, the trench roller or walking vibratory roller can be used for compaction; Heavy vibratory roller or impact roller shall be used for repeated compaction of the deep fill of the port wharf.

2、 Adaptability of compaction machinery

As for the adaptability of compaction machinery, the adaptability of different types and specifications of machinery to various construction conditions is also different. Mastering the adaptability of these equipment is an important basis for the rational selection and purchase of road rollers. Heavy static smooth roller is often used in the construction of road machine cushion and subgrade, while medium roller is mostly used in pavement construction, and light roller is only used in small engineering and pavement maintenance engineering. The static smooth roller is still effective for compaction of cohesive thin layer soil, but it is not effective for compaction of clay with high water content or sand with uniform viscosity.

Bump roller is often used for the bottom layer compaction of subgrade or foundation pit backfill, especially for the cohesive soil with large water content and different particle size, as well as the compaction effect of agglomerated and blasting rock fill, but it is not suitable for the compaction of surface layer and sandy soil. The tyre roller is suitable for the compaction of various soil conditions, especially for the uniform compactness of the paving layer, and has a good effect on the compaction of asphalt concrete pavement. Vibratory roller can adapt to compaction under various working conditions, especially for sandy soil. The compaction effect of large vibratory roller on deep layer is incomparable with other models. Small rollers and tamping machines are suitable for compaction of small-scale projects and narrow places, and have good compaction effect on the backfill of structures.

3、 Project quality requirements

For high-grade highway, in addition to ensuring the rigidity, strength and stability of subgrade and pavement, it should also have good smoothness, anti-sliding and impermeability. Compaction with full-drive heavy-duty vibratory roller can give a flat and solid pavement foundation. Compaction with tandem vibratory roller and sealing with tire roller can obtain a flat and stable pavement structure.

4、 Requirements of compaction process

It is often the key to ensure the construction quality to correctly draw up the compaction process and equip the appropriate roller. For example, when compacting the foundation layer, the vibratory roller is used for compaction, and the tire roller is used for sealing, which can obtain satisfactory compaction quality and appropriately reduce the equipment investment cost.

5、 Good maintainability

Users should try to purchase standard equipment and series equipment, so as to facilitate maintenance services and spare parts storage. The engine, mechanical transmission system, hydraulic components and oil pipes, control mechanism and tires of the serialized roller have a high degree of generalization, greatly reducing the inventory of spare parts, and their operation, maintenance and repair methods are also very similar.

6、 To purchase small and medium-sized rollers, it is necessary to examine not only the quality and performance of the products, but also the overall strength of the manufacturer. The brand of Storak has been established for 30 years, and the domestic 3.5-ton roller and 3-ton double-drum roller have obtained patent technology certification.

Tips: Compacting tyre roller, bump roller and tyre driven vibratory roller for road filling, river embankment and embankment filling are applicable to compaction of large and thick fill layer. Vibratory rollers are better used in places with more sandy components, and bump rollers are suitable for places with more cohesive soil.

Compacting and tamping machine, vibrating rod, towed vibratory roller and special slope roller for filling slope shall be used when compacting along the slope, and vibratory rammer shall be used when the scale is small.

The foundation compaction compactor and vibrating rod for filling side ditches of bridges and culverts are used for compaction in places with limited area.

Compaction and static rolling of asphalt pavement surface The large-scale paving works of two-wheel roller, tire roller, and double-steel wheel vibratory roller are carried out by using the tire roller for fine compaction, then using the smooth wheel roller for rolling, and then using the tire roller to seal the layer, simple paving and other small-scale operations, using only the vibratory roller for rolling.

The road base and stabilized soil vibratory roller, three-wheel roller impact roller have deep filling layer, high water content, and wide working area, and are constructed with crawler tractor.

Towing vibratory roller and impact roller for port, wharf and deep fill have deep fill layer, high water content, and wide working area, which are constructed with crawler tractor.

Small-scale compaction operations such as impact compactor, vibrating plate compactor and small roller for repairing the corners and small areas of pedestrian garden paths.



CONTACT US

Contact: Ms. Anna

Phone: +8613964983086

E-mail: Alex.cui@storike.com

Add: Incalcu Industrial Park, 327 National Road, High-tech Zone, Jining City, China., Jining, Shandong, China

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