基于FBG传感的软基实时监测系统研究  

RESEARCH AND APPLICATION OF REAL TIME MONITORING SYSTEM FOR SOFT-SOIL GROUNDSILL BRAGG GRATING SENSING TECHNOLOGY

作　　者：张鸿[1] 王新毅[1] 熊茂东 黎剑华[1] 刘优平[1] 

机构地区：[1]南昌工程学院土木与建筑工程学院,江西南昌330099 [2]江西公路开发总公司,江西南昌330038

出　　处：《低温建筑技术》2011年第6期121-123,共3页Low Temperature Architecture Technology

基　　金：江西省科技计划项目(No.2010BGB01302);江西省交通运输厅重点科技项目(No.2010C00013;2010C00014)

摘　　要：针对软基变形的特点,对光纤Bragg光栅传感在线监测高等级公路深厚软基的机理进行分析和试验研究,研发了光纤传感技术和网络技术为一体的新型软基在线监测系统。该监测系统可以实时读取施工现场检测数据,以用户图形界面的方式显示路基沉降、孔隙水压以及温度等监控参数;系统可以利用实时数据和历史数据进行对比计算,实现软基沉降预警预报功能。监测系统在某高速公路软基试验段进行了应用,监测数据与实际情况相符。Aiming at highway soft soil sensing was analyzed and tested. A new system integrated fiber of on-line monitoring fiber Bragg grating Bragg grating sesing technology with network for monitoring soft soil subgrade deformation was developed. Monitoring system can get data tested in construction scene on real time, and show inspecting parameters by graphical interfaces and alrm to soft - soil subgrade sedimentation according to contrast calculation of real time data and historical data. In Dechang highway this system was applied. The testing equipments run normally and the monitoring system was reliable, and the testing data consisit with actual status.

关 键 词：公路软基 光纤BRAGG光栅 实时监测 沉降预警 

分 类 号：TU447[建筑科学—岩土工程]