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| 基于BOTDR技术的隧道衬砌应变测量温度补偿实例分析 | |
| 引用本文： | 丁勇,施斌,俞缙.基于BOTDR技术的隧道衬砌应变测量温度补偿实例分析[J].防灾减灾工程学报,2007,27(3):344-350. |
| 作者姓名： | 丁勇 施斌 俞缙 |
| 作者单位： | 1. 南京理工大学土木工程系,南京,210094;南京大学光电传感工程监测中心,南京,210093 2. 南京大学光电传感工程监测中心,南京,210093 3. 南京水利科学研究院岩土工程研究所,南京,210024 |
| 摘 要： | 应变数据的温度补偿一直是光纤应变传感技术(如BOTDR)应用于实际工程的主要障碍,虽然目前有了不少理论方法试图解决这个问题,但实际运用起来却效果不佳。本文通过对云南白泥井3号隧道光纤应变监测项目的实例分析,提出了一种新的BOTDR温度补偿方法。应用该方法对白泥井3号隧道进行的温度场分析表明,隧道内空气温度场的温度变化明显要大于隧道结构温度场,而在总体的温度变化趋势上,它们都同当地的气候条件保持一致。 |
| 关 键 词： | BOTDR 隧道 衬砌 应变 温度补偿 |
| 文章编号： | 1672-2132（2007）03-0344-07 |
| 修稿时间： | 2006-10-252007-01-10 |
An Application of Temperature Compensation in the Tunnel Lining Strain Monitoring Based on BOTDR |
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| DING Yong,SHI Bin,YU Jin.An Application of Temperature Compensation in the Tunnel Lining Strain Monitoring Based on BOTDR[J].Journal of Disaster Prevent and Mitigation Eng,2007,27(3):344-350. | |
| Authors: | DING Yong SHI Bin YU Jin |
| Institution: | 1.Department of Civil Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;2.Center for Engineering Monitoring with Opto-Electronic Sensing,Nanjing University,Nanjing 210093,China;3.Nanjing Hydraulic Research Institute,Nanjing 210024,China |
| Abstract: | The temperature compensation of emergence data has always been a primary impediment to the application of the Fibre Emergence Sensing Technology,for instance,BOTDR,to projects in practice.Although there have emerged quite a few theories in the hope of solving this problem,they are all deficient in real effects.This article provides a new method of BOTDR temperature compensation through the example analysis of the Fibre Emergence Inspection Project in the 3# tunnel of Bainijing,Yunnan.By using this method to analyze the temperature field in the tunnel,it shows that the temperature change of the temperature field in the tunnel is obviously greater than that in tunnel structure.However,in the general trend of the temperature change,they all maintain consistent with the local climate. |
| Keywords: | BOTDR tunnel lining strain temperature compensation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |