Research On Relationship Between The Vibration Acceleration Of Vibratory Roller And The Degree Of Compaction

Vibratory roller has a good effect compaction, impact depth, the characteristics of high productivity,and it applies to all kinds of soil compaction,it has become standard equipment in many compaction work and preferred equipment.How can accurately reflect the real-time and compacted soil compaction by a vibrating compaction work situation is a difficult problem to solve.In the vibration compaction process,the change of vibration acceleration of the vibratory wheel or the body caused by the dynamic characteristics of the soil,which can be used to determine the soil compaction process.Therefore,it is necesseary to researche the relationship between the the vibration acceleration and the degree of compaction.This paper analyzes the vibratory wheel vibratory roller-compacted soil systems, sets a mathematical model and the mechanical structure model to study the vibratory roller vibration acceleration and the relationship between the degree of compaction. First,according to the actual structure and characteristics of vibration roller,it is to establish a model of the vibration wheel-soil and vibratory roller model,and choose and build soil model by analyzing the dynamic properties of soil and compaction characteristics;then it does the vibration wheel-dynamic response of soil model and modal analysis; Finally,it analysis the relationship between the vibration acceleration of vibration roller and the degree of compaction by dynamic simulation of the vibratory roller and condition analysis. It is that vibration acceleration increases with the increasing of the degree of compaction,within a reasonable condition and the same exciting force and the vibration frequency.