地质和岩土工程光电传感监测研究进展及趋势——第五届OSMG国际论坛综述

CURRENT PROGRESS AND TRENDS OF OPTO-ELECTRONIC SENSORBASED MONITORING IN GEO-ENGINEERING——A SUMMARY OF 5^(th) OSMG-2014

第五届地质(岩土)工程光电传感监测国际论坛于2014年10月在南京大学成功举办。本次论坛显示,国内外地质和岩土工程光电传感监测领域的研究工作取得了以下一些进展:(1)光电解调技术不断进步,解调精度、稳定性不断提高,一些新型的技术如微弱FBG拉丝塔技术被开发出来;(2)国内外都研发了大量的适用于地质与岩土工程监测的光纤传感器,基本上覆盖了工程监测领域的各种需求;(3)光电传感器的性能测试和布设工艺成为研究热点;(4)基于光电传感器的健康诊断和监测理论日益成熟;(5)光电传感监测技术的工程应用领域越来越广阔,在边坡工程、隧道工程、采矿工程、基坑工程、道桥工程等领域发挥了越来越重要的作用。未来的研究建议包括以下几个方面:(1)高性价比的分布式光纤传感解调技术的研发;(2)适合于地质、岩土工程分布式监测的光纤传感器的研发;(3)适应恶劣地质环境的分布式光纤传感器布设工艺研究;(4)海量监测数据的实时处理、误差分析和异常识别;(5)海量监测数据传输技术的开发;(6)基于分布式监测的地质灾害预警和岩土工程安全评估理论研究。

This is a summary report for the 5 th International Forum on Opto-electronic Sensor-based Monitoring in Geo-engineering(5 th OSMG-201 4).This forum was held in Nanjing University in Oct 201 4.The forum shows the following features in recent research:(1 )The opto-electronic demodulation technologies are undergoing numerous developments and the monitoring accuracy and reliability are significant enhanced.(2)More and more sensors for geo-engineering monitoring have been developed recently, which can meet nearly all the requirements of engineering monitoring.(3)The performance testing and installation techniques of the opto-electronic sensors have become a hot research topic.(4)The opto-electronic sensor-based health diagnosis and monitoring theories have become more mature recently.(5 )The applications of distributed sensing technologies in monitoring engineering structures have been advocated extensively and the sensor systems have been introduced into a variety of disciplines. The future research can focus on the following aspects:(1 )Development of cost-effective demodulation techniques for distributed fiber optic sensing technology.(2)Development of fiber optic sensors for geo-engineering monitoring. (3)The field installation methods of fiber optic sensors in harsh environments.(4)Real-time processing,error analysis and anomaly recognition of huge monitoring data.(5 )Transmission technologies of huge monitoring data. (6)Early warning and stability assessment methods in geo-engineering based on distributed monitoring technologies.