面向营业线桥涵施工的多传感器变形监测系统研究  

Multi-sensor deformation-monitoring system in relation to bridge and culvert construction of the railway in operation

作　　者：任高峰[1] 张卅卅[1] 胡仲春[1,2] 刘永成[2] 

机构地区：[1]武汉理工大学资源与环境工程学院,武汉430070 [2]中铁十四局集团有限公司,济南250014

出　　处：《安全与环境学报》2013年第4期191-195,共5页Journal of Safety and Environment

基　　金：国家自然科学基金资助项目(51104112);中央高校基本科研业务费专项资金资助项目(2011-IV-045)

摘　　要：为了避免营业线桥涵施工导致的列车晃车以及铁路交通事故,基于多传感器技术和虚拟仪器技术,提出面向营业线桥涵施工的多传感器变形自动化监测系统,设计了支墩-便梁临时支护系统的变形监测方案。通过理论分析及三角函数几何关系推导出了便梁上任一铰接点的沉降位移及水平位移的计算公式,采用LabVIEW虚拟仪器软件构建了多传感器变形监测数据分析平台。监测数据通过40通道BGK-Micro-VR混合式智能测量模块数据采集箱集中打包后,借助GPRS模块及无线网络发射至控制端计算机上,由监控中心对数据进行计算分析,实现实时监控,并提供动态精确的轨道调整值、列车运营安全评估及预警。实际应用结果表明,该系统具有高精度、低成本的特点,能够保证营业线桥涵施工及列车运营安全。In order to eliminate the vacillation and railway accidents caused by bridge and culvert construction of the railway under operation,the author has proposed a multi-sensor deformation-monitoring system in this connection based on the multi-sensor technology and virtual instrument technology.The said system is by nature a deformation monitoring program of a buttress-beam temporary support system.For this purpose,first of all,we have deduced a scientific formula of any hinge point＇s settlement and horizontal displacement value on the beam through theoretical analysis and trigonometric geometric relationship.And,then,we have built up an analysis platform for multi-sensor deformation monitoring by using the LabVIEW virtual instrument software.The system is set up with all the sensors being connected to the safety automatic monitoring acquisition instrument in the construction site,which is responsible for the selective collection of the monitoring signals.When the operator is to work with the instrument,he can set up the acquisition time and frequency.With all the forty channels BGK-Micro-VR hybrid intelligent measurement module data packaged into an acquisition box,the monitoring data can then be transmitted wirelessly to the computer control terminal with the help of GPRS module and the Internet.The command unit of the monitoring system in turn uses the virtual instrument developed by LabVIEW to call for the transferred monitoring data and then put them for analysis in the form of deformation charts,rates,extreme values,the changing tendency and so on.And,now,the monitoring center tends to keep alert to see if the monitoring data overrun or tend to overrun so as to remind the project manager to turn on or turn off the signal light or signal sound.At the same time,the instrument can also help to adjust the track quality reference data and the construction schedule steps.It can also help to save the data for inquisition,generate the reports over the construction situation under way as well as the safety assessment.

关 键 词：道路工程 营业线 桥涵施工 多传感器 实时监测 虚拟仪器 LABVIEW 

分 类 号：U24[交通运输工程—道路与铁道工程]