摘要
为了探讨振荡压路机在压实过程中振荡轮与被压实路面间存在滑转的工况下,被碾压材料所能吸收的有效压实能量,采用能量平衡的理论,通过图解对比方法定性分析了消耗在路面压实和滑转损失过程中的能量分配,建立了被碾压材料吸收有效压实功的计算模型,研究了激振能量、铺层压实程度、有效压实功与滑转率的关系,提出了最佳滑转率的概念。研究和试验结果表明:当振荡压路机在最佳滑转率状态下工作时,被碾压材料能够吸收最大的有效压实功;随着碾压遍数的增加,应逐步减少输给振荡轮的激振能量;被碾压材料吸收有效压实功的计算模型与实际的压实效果试验相吻合。
In order to study oscillatory roller compacted materials absorbing the effective compaction energy under the condition of slipping and rotation between oscillatory drum and compacted pavement during compaction, by applying the theory of the energy balance, energy distribution of oscillatory drum between compacting pavement and slip-rotation loss was qualitatively analyzed by the contrast using graphic method, and the modal of compacted materials absorbing the effective compaction power was established. The relationships of excited energy, compaction degree of pavement layer, effective compaction power with slip-rotation ratio were analyzed and the conception of the optimal slip-rotation ratio was put forward. The research and test result indicates that （1） compacted materials can absorb the maximum effective compaction power when oscillatory roller works in the optimal slip-rotation ratio; （2） with increase of the times of compaction, excited energy transmitted by roller to oscillatory drum should be decreased step by step. The calculation model of compacted materials absorbing the effective compaction power is in keep with the test compaction effect of compacted materials.
出处
《公路交通科技》
CAS
CSCD
北大核心
2009年第6期49-54,共6页
Journal of Highway and Transportation Research and Development
关键词
道路工程
有效压实功
能量平衡
振荡压实
计算模型
滑转
road engineering
effective compaction power
energy balance
oscillatory compaction
calculation model
slipping and rotation
