基于分布式光纤传感的文物保护全过程应变监测方法

Whole-process monitoring of the preservation of cultural relics using distributed optical fiber sensors

文物保护中的安全监测是一项复杂而重要的工作,为了确保具有千年历史的独木舟从出土到馆藏过程中的结构安全,提出了采用分布式光纤传感的全过程应变监测方法。首先结合工程实际情况,确定整体分布式光纤监测方案,优化了光纤的布设方法。通过分布式应变监测数据评估了加固保护和翻转过程对舟体的影响。监测结果表明,分布式光纤传感能有效地捕捉各过程的结构应变变化,分析表明该文物保护过程中舟体处于安全状态。实际工程应用也验证了分布式光纤传感技术在文物结构安全保护过程中的有效性,该方法具有极大的推广价值,能有效提高现有文物挖掘保护水平。

Monitoring the safety of an artifact has always been a most complicated but significant task in the preser- vation of cultural relics. To ensure the structural safety of a canoe, with thousands of years of history, during its excavation, a whole - process monitoring method based on the technique of distributed optical fiber sensors is pres- ented. Considering the situation of the project, the layout of optical fiber sensors is determined. By analyzing the monitoring data, the influences have been evaluated in the process of reinforcement and reversal of the canoe. Monitoring results show that the distributed optical fiber sensing technology can effectively capture the changes of structural changes in each process. And the analysis results show that the hull is still safe under the cultural relics protection. The effectiveness of this technique also proves its application in construction. This method is of great promotional merit as it significantly improves the current level of cultural relics protection.