路面摊铺厚度的连续检测与可视化实时监控

Continuous Measuring and Real-time Visualization Monitoring of Pavement Lift Thickness in Highway Construction

为实现路面摊铺厚度的连续检测与三维可视化实时监控,在详细综述当前路面摊铺厚度检测传统方法的基础上,针对人为因素干扰会导致测量误差的不足,研制适用于施工过程中摊铺厚度实时采集的装置,并提出路面摊铺厚度的连续检测与可视化实时监控的方法;利用摊铺厚度实时采集装置,建立路面摊铺前基准面和摊铺后摊铺面的空间几何关系,实时计算摊铺厚度;基于ActiveX技术,提出摊铺厚度监测信息的三维网络可视化集成方法,并开发相应系统,该系统可在Web客户端实时监控并更新显示摊铺厚度等监控信息,当摊铺厚度不达标时进行实时报警。研究结果表明:该方法具有良好的适用性,计算的摊铺厚度绝对误差不超过0.3cm,满足工程精度控制要求;对于不符合控制要求的路段,为路面施工的及时调整提供了明确指示;实现了路面施工过程中摊铺厚度的连续、自动、高精度、远程、三维可视化监控,为实现"操作手-承包商-监理-业主"一体化管理以及参建各方同步掌控路面摊铺施工质量提供了先进的技术手段。

To realize continuous measuring and real-time visualization monitoring of the pavement lift thickness,and reduce measuring errors caused by human behaviors,a real-time lift-thickness acquisition device applicable to the highway construction was developed by dint of traditional methods of pavement lift-thickness measurement. Meanwhile,a method for continuous measuring and real-time visualization monitoring of pavement lift thickness was proposed.Based on the device,the geometrical space relationship between datum plane before paving and pavement surface after paving was established to calculate the lift thickness.A method for integrating monitoring information by means of three-dimensional web-based visualization and the ActiveX technology was proposed,and the corresponding system was developed.The system could monitor and update the information of lift thickness on the Web client.When the calculated lift thickness was not satisfied with the design control standard,the warning message would be sent out.The results show that the method has the feature in wide applicability,and the absolute deviation of the calculated lift thickness is less than 0.3 cm within the permissible error range.The weak area can be visualized to inform the operators by issuing a warning message,and provide specific instructions in the real-time adjustment.This new system can monitor the liftthickness in a continuous,automatic,accurate,and three-dimensional visualized manner,thus realizing the collaborated ＂operator-contractor-supervisor-owner＂streamline quality control mode.The system provides an advanced technique for all parts participating in the project construction to control road pavement quality.