北华大学学报（自然科学版）2016，Vol.17Issue(4)：540-544,5.DOI:10.11713/j.issn.1009-4822.2016.04.027
基于FWD荷载下的沥青路面实测动力响应分析
Measured Dynamic Response Analysis of Asphalt Pavement Based on FWD Load
丁舒媚1
作者信息
- 1. 河南工业职业技术学院城市建设学院，河南 南阳 473000
- 折叠
摘要
Abstract
Based on high speed and heavy load conditions of asphalt pavement,there is a great difference of the force of asphalt pavement between stress state and static load mode. Through experiments we can analyze dynamic response law of asphalt pavement based on dynamic load excitation. Then based on this,damage mechanism of asphalt pavement are analyzed. For the study of the measured dynamic response of asphalt pavement,the paper based on the actual project built three kinds of typical asphalt pavement tests. The characteristics of dynamic deflection basin of asphalt pavement are analyzed by using FWD ( Falling Weight Deflectometer) . From dynamic strain sensor, layer bottom flexural tensile strain response is obtained based on dynamic load excitation. The results show that:the dynamic response of asphalt pavement structure exhibits nonlinear characteristics with FWD load. Three kinds of asphalt pavement structure bottom surfaces have lower strain state,and almost don’ t have damage to accumulated fatigue. With respect to the transverse strain,it has a larger longitudinal resilience.关键词
动载激励/沥青路面/实测动力响应/落锤式弯沉仪Key words
dynamic load excitation/asphalt pavement/measured dynamic response/falling weight deflectometer分类
交通工程引用本文复制引用
丁舒媚..基于FWD荷载下的沥青路面实测动力响应分析[J].北华大学学报（自然科学版）,2016,17(4):540-544,5.
