光纤布拉格光栅论文：基于C#在高速公路智能光纤软基监测系统中的应用研究.doc

光纤布拉格光栅论文：基于C#在高速公路智能光纤软基监测系统中的应用研究 【中文摘要】在我国沿江、沿湖、沿海等处广泛分布着软土,而这些地区一般又是经济发达地区,迫切需要建设高速公路。而软土因地而异,因层而异,不可预见性等特性给高速公路施工以及后期运营带来不同程度的危害,严重时甚至危及生命财产。与此同时,传统的监测方法精度低,受施工和气候等因素干扰,不能实现实时监测等局限性,因此,应用光纤传感器对高速公路软基实时监测进行研究不仅具有学术价值,同时具有很大的经济与社会效益。通过文献调研,就我国高速公路软基施工、运营常规监测所存在的问题系统地总结了光纤传感器的发展过程、原理、优点以及国内外一些应用现状,提出应用光纤传感器实现实时监测的重要性。基于光纤光栅传感技术建立了高速公路软基监测硬件系统。基于C#语言和Microsoft SQL Sever软件平台下运用Socket类(TCP协议)及ADO数据访问接口实现数据采集与处理,建立了高速公路软基健康监测软件系统,实现了大量传感器数据的采集、实时数据与曲线显示、数据库存储、历史数据查询,其中采集到的数据直接为温度值和应变值,避免了解调仪配套通用软件只能采集波长值的局限性。文中对某工程施工过程中高速公路软基的温度、应变和孔隙水压力进行了监测。监测结果表明,施工期结果处于正常状态。同时,对比常规的监测方法,验证了光纤传感器的在高速公路软基监测的可行性。 【英文摘要】Soil is widely distributed along the river, lake and coastal in our country and these areas are typically economically developed areas that urgently need to build the highway. The different characteristics in different layer, in different local, unpredictable and other characteristics causes various degrees damage,serious or even life-threatening property to highway construction and operation. At the same time, the traditional monitoring methods with low accuracy by the construction disturbance and climate and other factors, can not achieve real-time monitoring of limitations, therefore, the research on application of fiber optic sensors to real-time monitoring in freeway not only has the academic value, but also has a great economic and social benefits.Through literature investigation, the paper summarizes the development process of the fiber optic sensor, principle, advantages and application status at home and abroad, proposes the application of fiber optic sensors to monitor the importance of real-time during construction, operation routine monitoring of the problems systematically of the highway soil foundation.Based on FBG sensing technology, the health monitor hardware system of the soil foundation of the highway is established.Based on Socket and ADO control on Visual Basic and Microsoft Access platform, a data acquisition scheme is presented and the structural