分布式光纤应变测量技术在滑坡早期预警中的应用

施斌; 丁勇; 徐洪钟; 张丹

分布式光纤应变测量技术在滑坡早期预警中的应用

南京大学地球环境计算工程研究所地球科学系南京 210093

基金项目:

国家杰出青年科学基金项目(40225006);国家教育部科学技术研究重点项目(01086)

计量
- 文章访问数: 1807
- HTML全文浏览量: 197
- PDF下载量: 23
- 被引次数: 0
出版历程
- 刊出日期: 2004-12-25

AN APPLICATION OF DISTRIBUTED OPTIC FIBER STRAIN MEASUREMENT TO EARLY-WARNING OF LANDSLIDE

ACEI, Department of Earth Sciences, Nanjing University, Nanjing 210093

摘要

摘要: 简要介绍了布里渊散射光时域反射测量技术(简称BOTDR)在工程监测方面的最新发展,并结合具体的滑坡监测方案,讨论了该技术应用在滑坡预警中的可行性。目前的研究成果表明,该技术具有常规监测技术所不具有的诸多优点,如分布式、长距离和实时性等,可满足滑坡早期预警和防护工程安全监测要求,同时仍有许多相关课题有待研究,如温度影响、铺设技术和疲劳效应等等。
- 光纤应变测量技术 /
- BOTDR /
- 滑坡 /
- 分布式监控 /
- 早期预警
Abstract: The newest development of Brillouin Optical Time Domain Reflectometry (BOTDR) application in large infrastructure engineering monitoring is presented. Based on the monitoring characteristics of landslide early-warning, BOTDR's application feasibility to the early-warning of landslide is discussed. It is demonstrated that BOTDR is outstanding with its distributed monitoring, long distance and real-time monitoring, so that it fully meets the demand of the early-warning of landslide and health monitoring of slope project. However there are still many relative topics to study such as temperature impact, installation methods of fiber optic sensor, fatigue effect of optical fiber.
- Optica Fiber strain monitoring /
- BOTDR /
- Iandslide /
- Distributed monitoring /
- Early-warning

HTML全文

参考文献(1)

[1] Ansari, F. Fiber optic health monitoring of civil structures. Structural Health Monitoring and Intelligent Infrastructure, 2003:11~30.
[2] Ou, J.P. Some recent advances of intelligent health monitoring systems for civil infrastructures in mainland China. Structural Health Monitoring and Intelligent Infrastructure, 2003:131~144.
[3] 瞿伟廉李卓球.智能材料-结构系统在土木工程中的应用.地震工程与工程振动.1999, 19 (3):87~95.
[4] Udd E. Overview of fiber optics applications to smart structures. Proceedings, 14th Annual Review of Progress in Quantitative Nondestructive Evaluation. New York: Plenum Press, 1988, 541~546.
[5] 施斌,徐洪钟,张丹等. BOTDR应变监测技术应用在大型基础工程健康诊断中的可行性研究.岩石力学与工程学报, 2004, 23 (3):493~499.
[6] 张巍,吕志涛.光纤传感技术用于桥梁监测.公路交通科技.2003, 20 (3):91~95.
[7] Uchiyama, H., SATO, Y., and LI Z.X. AQ8602 optical fiber strain/loss analyzer. Ando Technical Journal. July,1997.
[8] Uchiyama, H., Sakairi, Y., & Nozaki, T. An optical fiber strain distribution measurement instrument using the new detection method. Ando Technical Bulletin. October,2002.
[9] Е·П·叶米里扬诺娃.滑坡作用的基本规律,1986,第1版Page:228.
[10] Hiroshi NARUSE, Member, Yasuomi UCHIYAMA, Nonmember, Toshio KURASHIMA, Member, and Shuji UNNO, Nonmember. River Levee Change Detection Using Distributed Fiber Optic Strain Sensor. IEICE TRANS. ELECTRON., VOL. E83-C, NO. 3 MARCH,2000.
[11] Ding,Y., Shi,B., Cui,H.L. et al.. The stability of optical fiber as strain sensor under invariable stress. Structural Health Monitoring and Intelligent Infrastructure. 2003:267~270.

施引文献

资源附件(0)

访问统计