基于光纤陀螺的桥梁路面平整度检测研究

Detection of Bridge Pavement Evenness Based on Fiber Optic Gyro

摘要:

光纤陀螺线形检测系统是一种测量路面线形曲线的检测方法。结合光纤陀螺线形检测原理以及常用的路面平整度指标,研究了一种基于光纤陀螺的路面平整度指标获取方法。实验分析和应用结果证明,线形测量过程中所采集的光纤陀螺角速度概率分布和标准差与路面平整度具有较强的关联性。通过提取光纤陀螺检测桥梁线形的高程标准差,可得到路面平整度系数。本方法可反映路面的宏观平整度以及路面传递至车辆的行车舒适性,并且可实现桥梁线形和平整度的同时测量,具有方便高效准确的优点和较大的应用推广价值。

Abstract:

Fiber optic gyro curve mode detection system is a method for measuring the pavement curve mode. By combining the detection principle of fiber optic gyro and the pavement evenness index, a method for obtaining pavement evenness is proposed. The experimental analysis and application results show that the probability distribution and standard deviation of the angular velocity collected by FOG in the process of curve measurement have a strong relevance with the pavement evenness. By extracting the bridge curve height standard deviation detected by FOG, the pavement evenness coefficient can be obtained. This method can reflect the macro evenness of the pavement surface and the driving comfort transferred from the pavement to the vehicle. It also can realize the simultaneous measurement of the bridge curve and evenness, which presents the advantages of convenient, efficient and accurate, and great application and promotion value.