振弦式传感器在倒装式柔性基层路面监测中的应用  

Application of Vibrating Wire Sensor in Monitoring Inverted Flexible Base Pavement

作　　者：孙健 陈姗 孔维臻 Sun Jian;Chen Shan;Kong Weizhen(Guangdong CAC Engineering Consultants Co.,Ltd.,Guangzhou 510000,China)

机构地区：[1]广东华美加工程顾问有限公司,广东广州510000

出　　处：《市政技术》2023年第8期304-308,共5页Journal of Municipal Technology

摘　　要：为探究倒装式柔性基层路面病害形成机理,以广河高速惠州段为研究对象,首次引入了带数据存储功能的振弦式传感器,并进行了长达5个月的连续监测,与同一时期落锤式弯沉仪所测弯沉值进行对比分析,找到了振弦式传感器所测应变值与弯沉值之间的联系。研究结果表明:所测应变值与弯沉值存在正相关关系,但在部分特定条件下振弦式传感器适用性不足;综合分析结果显示,路面结构层处于稳定状态。振弦式传感器的使用可为后续路面养护策略的制定提供参考。In order to explore the disease mechanism of inverted flexible base pavement,the vibrating wire sensor with data storage function was introduced for the first time in Huizhou section of Guangzhou-Heyuan Expressway.The continuous monitoring has been carried out for up to five months.The deflection value was compared with the one by the falling weight deflectometer in the same period to find the relationship between the strain value measured by the vibrating wire sensor and the deflection value.The results show that there is a positive correlation between the measured strain and deflection.But,the applicability of vibrating wire sensor is insufficient under some specific conditions;The comprehensive analysis results show that the pavement structure layer is in a stable state.The vibrating wire sensor provides a reference for the subsequent pavement maintenance strategy.

关 键 词：倒装结构 柔性基层 振弦式传感器 弯沉 应变 

分 类 号：U416.221[交通运输工程—道路与铁道工程]