为了提高沥青路面的摊铺密实度，需要研究摊铺机振捣机构对混合料的压实传递特性。针对振捣装置与材料组成的动力学压实系统，考虑摊铺下承层材料特性建立了振捣机构-沥青混合料相互作用动力学模型，提出压实传递力和压实传递率的理论计算方法。将振捣压实过程中的压实传递力作为振捣机构压实能力参数、压实传递率作为振捣压实效率参数，研究振捣频率、沥青混合料特性和下承层刚度对振捣压实传递特性的影响规律，得到了沥青路面高密实摊铺的振捣工作参数范围。基于振捣压实传递特性参数，探讨振捣压实传递力和压实传递系数与密实度之间关系，并进行仿真分析和试验研究。研究结果表明：振捣频率为最大振捣频率的10%（4Hz左右），密实度出现第一个峰值点87%，之后密实度逐渐减小，在振捣频率百分比为45%（15Hz左右）时，到达密实度低谷段84%后又逐渐增大，振捣频率百分比为65%（22Hz左右）达到密实度第二个峰值点88%，密实度和振捣压实传递力理论计算结果之间存在对应关系。在小于振捣频率22Hz的范围内，振捣压实传递力可以作为摊铺密实度变化的特征参数。研究结果可为摊铺机实现对铺层混合料的高效压实提供依据。
Abstract
To improve the initial density of asphalt pavement behind the paver, it is necessary to study the compaction transfer characteristics of the paver vibrating device to the mixture. Aiming at the dynamic compaction system composed of vibrating device and materials, considering the material characteristics of lower layer, the dynamic model of the interaction between vibrating device and asphalt mixture is established, and the theoretical calculation method of compaction transfer force and compaction transfer rate is proposed. Taking the compaction transfer force as the compaction capacity parameter and the compaction transfer rate as the compaction efficiency parameter during tampering compaction, the effect of vibration frequency, asphalt mixture characteristics and the stiffness of the lower layer on the vibration compaction transfer characteristics is studied. At the same time, the range of vibration parameters for high-density paving of asphalt pavement is obtained. Then, based on the compaction transfer characteristic parameters, the relationship between vibration compaction transfer force, compaction transfer coefficient and paving density is discussed, and simulation analysis and test are carried out. The results show that the frequency is 10% (about 4Hz) of the maximum vibration frequency, the first peak density is 87%, and then the density gradually decreases. When the frequency is 45% (about 15Hz), it reaches 84% of the low compactness section and then gradually increases. Furthermore, the vibration frequency percentage is 65% (about 22Hz), reaching 88% of the second peak density, and the density gradually increases. Therefore，there is a relationship between density and theoretical calculation results of the compaction transfer force. In the range less than 22Hz of the vibration frequency, the vibration compaction transfer force can be used as the characteristic parameter of the paving density. Research can provide the basis for the high-density paving and effective compaction of paver to mixture.
关键词
摊铺机 /
振捣机构 /
沥青路面 /
压实传递特性 /
密实度
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Key words
paver /
vibrating device /
asphalt pavement /
compaction transfer characteristics /
density
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参考文献
[1] PLATI C, GEORGIOU P, LOIZOS A. Influence of different roller compaction modes on asphalt mix performance[J]. International Journal of Pavement Engineering, 2016, 17(1): 64-70.
[2] WAN Y P, JIA J. Nonlinear dynamics of asphalt-screed interaction during compaction: application to improving paving density[J]. Construction and Building Materials, 2019, 202: 363-373.
[3] BEAINY F, COMMURI S, ZAMAN M. Quality assurance of hot mix asphalt pavements using the intelligent asphalt compaction analyzer[J]. Journal of Construction Engineering and Management, 2012, 138(2): 178-187.
[4] 刘刚, 陈磊磊, 钱振东, 等. 车辙深度对沥青路面结构性能影响性分析[J]. 振动与冲击, 2021, 40(24): 36-40.
LIU Gang, CHEN Leilei, QIAN Zhendong, et al. Influence of rutting depth on asphalt pavement structure performance. Journal of Vibration And Shock, 2021, 40(24): 36-40.
[5] Airey G D, Collop A C. Mechanical and structural assessment of laboratory and field-compacted asphalt mixtures[J]. International Journal of Pavement Engineering, 2016, 17(1): 50-63
[6] Kumar S A, Aldouri R, Nazarian S, et al. Accelerated assessment of quality of compacted geomaterials with intelligent compaction technology[J]. Construction & Building Materials, 2016, 113: 824-834
[7] Hainin M R, Yusoff N I M, Satar M K I M, et al. The effect of lift thickness on permeability and the time available for compaction of hot mix asphalt pavement under tropical climate condition[J]. Construction & Building Materials, 2013, 48(19): 315-324
[8] 彩雷洲, 李刚, 李翔, 等. 压实次数对沥青混合料骨架特征影响研究[J].应用基础与工程科学学报,2022,30(02):341-350.
CAI Leizhou, LI gang, LI Xiang, et al. Study on stability state of asphalt mixture skeleton: compaction power and contact point analysis [J]. Journal of Basic Science and Engineering, 2022,30(02):341-350.
[9] 刘洪海, 贾洁, 马朝鲜, 张勇. 摊铺机熨平板对混合料振实特性的影响研究[J]. 中国公路学报, 2016, 29(7): 152-158.
LIU Honghai, JIA Jie, MA Chaoxian, et al. Investigation of paver screed on compaction characteristics of mixture [J]. China Journal of Highway and Transport, 2016, 29(7): 152-158.
[10] 贾 洁, 刘洪海, 辛 强, 万一品. 摊铺机熨平板冲击与振动耦合压实特性研究[J]. 振动与冲击, 2018, 37(16): 91-97.
JIA Jie, LIU Honghai, XIN Qiang, WAN Yi-pin. Investigation of paver screed on coupling compaction characteristics considering shock and vibration[J]. Journal of Vibration and Shock, 2018, 37(16): 91-97.
[11] JIA J, LIU H H, WAN Y P, et al. Impact of vibration compaction on the paving density and transverse uniformity of hot paving layer[J]. International Journal of Pavement Engineering, 2020, 21(3): 289-303.
[12] Gabriel B, Elie Y, Alvaro U, et al. Finite element modelling of the rolling resistance due to pavement deformation [J]. International Journal of Pavement Engineering. 2018. Available from: doi: 10.1080/10298436.2018.1480778.
[13] JIA J, LIU H H, WAN Y P. Dynamic characteristics modelling of the tamper–asphalt mixture interaction: application to predict asphalt mat density [J]. International Journal of Pavement Engineering, 2019, 20(5): 530-543.
[14] Kassem E, Scullion T, Masad E, et al. Comprehensive Evaluation of Compaction of Asphalt Pavements and a Practical Approach for Density Predictions[J]. Transportation Research Record Journal of the Transportation Research Board, 2012, 2268(-1):98-107.
[15]李国锋, 黄思杰, 李文辉, 等. PQI检测影响因素分析及现场检测验证[J]. 筑路机械与施工机械化, 2019, 36(01): 110-116.
LI Guofeng, HUANG Siyuan, LI Wenhui, et al. Influencing Factor Analysis and On-site Inspection Verification of PQI Detection [J]. Road Machinery & Construction Mechanization, 2019, 36(01): 110-116.
[16] 殷超, 张建润, 孙志刚, 等. 摊铺机熨平板动态特性分析与测试[J]. 东南大学学报（自然科学版）, 2016, 46(6):1179-1185.
YIN Chao, ZHANG Jianrun, SUN Zhigang, et al. Dynamic characteristics analysis and test of paver screed[J]. Journal of Southeast University (Natural Science Edition), 2016, 46(6): 1179-1185.
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