Study on Compaction Properties and Compaction Mechanism of S

[quangongzi]

The main purpose of the study of soil compaction properties and the mechanism of vibration compaction is to design and select the parameters of the road roller according to local conditions, to improve the compaction efficiency of the road roller, to improve the construction quality and efficiency, shorten the project cycle and improve the project economy . And to ensure the life of the project, in order to obtain the highest efficiency. Therefore, it is of great practical significance to study the compaction properties of soil and the mechanism of vibration compaction.Small Road Roller - Shanghai Doan Machinery Technology Co.,Ltd

Study on compaction properties and vibration compaction mechanism of soils
Roller is the highway, railways, dams and airports and other large engineering foundation construction indispensable compaction machinery. The development of the world roller has been more than 100 years of history, experienced from mechanical transmission to hydraulic transmission, from static grinding to vibration, by vibration, oscillation, and then the combination of vibration and vibration of different stages, is now moving in the direction of intelligent roller Development [l]. In recent years, with the country to strengthen the construction of large-scale infrastructure, China's roller industry has been rapid development. In 2003, the sales volume of the roller was 13,037, of which 8328 were vibratory rollers, accounting for 6% of the total sales volume of the road rollers. At present, in our roller products, vibrating roller accounted for 60% of the strong.], Is a roller in the main species. Vibratory rollers rely on the combined effect of self-weight and vibration to compact subgrade and pavement materials, so that the compacted material has sufficient compaction. Compaction can give full play to the strength of roadbed and pavement materials, reduce the deformation of pavement and pavement under traffic load, and increase the impermeability and strength stability of roadbed and pavement materials. At present, global construction projects require effective soil compaction to meet the increasingly high load requirements of new highways, airports, harbors, railways and building foundations. Vibratory rollers work in eccentric high-speed rotation of centrifugal force generated by the vibration of the wheel under the action of forced vibration, the vibration of the soil below the wheel also with vibration, so as to achieve the purpose of compacting the soil. Therefore, compared with other types of road rollers, vibratory rollers have the advantages of good compaction effect, large influence depth, high production efficiency and suitable for compaction of various soils. Therefore, the vibrating roller has gradually become the standard equipment and preferred equipment for many compaction work. At present, the compaction properties of soil and the compaction mechanism of vibratory roller have made some progress. Several opinions about vibration compaction mechanism are put forward by engineering technology circles, such as resonance compaction view and minimum friction view. Each of these views can be
To explain a certain kind of vibration compaction phenomenon, but can not fully explain all kinds of vibration compaction phenomenon, indicating that these points need to be improved and added.
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