摘要
为了准确评价沥青桥面压实均匀性,实现基于云计算的振动压路机压实均匀性实时监测,首先通过室内试验对振动加速度有效值作为压实均匀性评价指标进行分析。以云交科项目为基础,利用DH5902动态数据采集分析仪对试验路段加速度信号进行采集,分别计算和比较不同碾压遍数的纵向压实均匀性。实验结果表明:以S r,S R,k,h为统计指标,能够很好的反应沥青桥面压实均匀性。在一定碾压遍数内,压实均匀性和碾压遍数呈正相关,当碾压遍数在第4遍和第7遍时时k和h值全部在临界值以内,压实均匀性达到最佳。本检测方法,为新型沥青桥面压实均匀性实时监测系统提供了基础。
In order to accurately evaluate the compaction uniformity of asphalt pavement and realize the real-time monitoring of compaction uniformity of vibratory roller based on cloud computing,the effective value of acceleration was analyzed as the evaluation index of compaction uniformity through laboratory test firstly.Based on the Yunnan Provincial Transportation Technology Fund Project,the acceleration signals of the test sections were collected by using the DH5902 dynamic data acquisition analyzer.The longitudinal compaction uniformity of different rolling passes was calculated and compared.The experimental results show that S r,S R,k,h are statistical indicators,which can well reflect the compactness of asphalt pavement.With a certain number of rolling passes,the compaction uniformity is positively correlated with the number of rolling passes.When the number of rolling passes is fourth and seventh,the values of k and h are all within the critical value and the compaction uniformity reaches the best.The proposed detection method provides a basis for a new real-time monitoring system for compaction uniformity of asphalt bridge deck.
作者
马丽英
李茂其
曹源文
董琴琴
MA Liying;LI Maoqi;CAO Yuanwen;DONG Qinqin(School of Mechatronic and Vehicle Engineering,Chongqing Jiaotong University,Chongqing 400074,China)
出处
《重庆交通大学学报（自然科学版）》
CAS
CSCD
北大核心
2020年第2期69-74,共6页
Journal of Chongqing Jiaotong University(Natural Science)
基金
云南省交通科技基金项目(2017(A)15)
关键词
桥梁工程
压实均匀性
实时监测
定量评价
加速度
沥青桥面
云计算
bridge engineering
compaction uniformity
real-time monitoring
quantitative evaluation
acceleration
asphalt bridge deck
cloud computing
