基于光纤光栅传感技术的沥青路面永久变形计算方法  

Calculation method of permanent deformation for asphalt pavement based on fiber bragg grating sensing technology

作　　者：谭忆秋[1,2] 陈凤晨[1] 董泽蛟[1] 柳浩[1,3] 

机构地区：[1]哈尔滨工业大学交通科学与工程学院,哈尔滨150090 [2]大连海事大学交通工程与物流学院,辽宁大连116026 [3]北京市政路桥建设集团有限公司研发中心,北京102600

出　　处：《大连海事大学学报》2008年第4期119-122,共4页Journal of Dalian Maritime University

基　　金：高等学校博士学科点专项科研基金资助项目(20060213002);国家自然科学基金资助项目(50778057);北京市科委计划项目(D07050300680701)

摘　　要：为推广光纤光栅技术在道路工程中的应用,解决沥青路面结构内部应变和温度信息的监测及分析难题,提出基于足尺寸道路监测信息的永久变形计算方法.采用修正的Burgers黏弹性模型,建立了由多类型光纤Bragg光栅传感器组合的道路监测系统,获取了各埋设层内的最大压应变、温度以及车辆的动态加载时间等参数.实例计算表明,利用光纤光栅传感技术进行沥青路面永久变形计算是完全可行的.To spread application of fiber grating technology in road engineering, a full-scale road monitoring information-based permanent deformation calculation method for asphalt pavement was proposed to resolve the complex problems about monitoring and analysing internal structure strain and temperature of asphalt pavement. A modified Burgers visco-elasticity model was adopted, and a road monitoring system was assembled by multitypes of fiber Bragg grating（FBG）sensors. And such parameters as peak strain, temperature and load time could be calculated from monitoring data. Tests show that it is completely feasible to calculate the permanent deformation for asphalt pavement by using fiber bragg grating sensing technology.

关 键 词：沥青路面 永久变形 计算方法 光纤BRAGG光栅 传感器 

分 类 号：TP212.12[自动化与计算机技术—检测技术与自动化装置]