沥青混合料摊铺离析评价及螺旋布料器EDEM仿真优化  

Evaluation of Asphalt Mixture Paving Segregation and EDEM Simulation Optimization of Spiral Distributor

作　　者：沈振宗 闫庆尧 吕文龙 崔成全 庞为为 张文博 姚运仕[2] SHEN Zhenzong;YAN Qingyao;LV Wenong;CUI Chengquan;PANG Weiwei;ZHANG Wenbo;YAO Yunshi(Shandong High-speed Engineering Construction Group Co.,Ltd.,Jinan Shandong 250014,China;School of Construction Machinery Chang'an University,Xi'an Shaanxi 710064,China)

机构地区：[1]山东高速工程建设集团有限公司,山东济南250014 [2]长安大学工程机械学院,陕西西安710064

出　　处：《交通节能与环保》2024年第3期168-172,共5页Transport Energy Conservation & Environmental Protection

基　　金：国家自然科学基金项目(51508030)。

摘　　要：沥青混凝土路面由于级配设计、现场施工技术以及后续维护不足等原因,其实际使用寿命远远低于设计寿命。本文通过沥青混合料动力学,抗离析试验以及针对试验结论仿真分析三种不同螺径并选出最优螺径方案。试验得出在仿真模型中,螺径460mm的仿真离析较小,在实际现场施工时宜选用直径较大、转速较低的螺旋分料器,并合理调整分料器中混合料的高度,使混合料充满螺旋分料器。The actual service life of asphalt concrete pavement is much lower than the design life due to the lack of grading design,on-site construction technology and follow-up maintenance.Therefore,through dynamic asphalt mixture,anti-segregation test and simulation to analysis three different screw diameters and select the optimal screw diameters.It is concluded that in the simulation model,the simulation segregation of 460mm screw diameter is small,and the screw distributor with larger diameter and lower speed is selected in the actual site construction,and the height of the mixture in the distributor is reasonably adjusted to make the mixture full of the screw distributor.

关 键 词：道路工程 沥青混凝土 摊铺机 级配离析 EDEM仿真 

分 类 号：U416.217[交通运输工程—道路与铁道工程]