基于光纤监测的边坡应变场可视化系统研究

许星宇; 朱鸿鹄; 张巍; 张诚成; 施斌

doi:10.11779/CJGE2017S1019

基于光纤监测的边坡应变场可视化系统研究 English Version

南京大学地球科学与工程学院,江苏南京 210023

基金项目: 国家自然科学基金青年基金项目（41302217）; 国家自然科学基金重点项目（41230636）; 国家重大科研仪器研制项目（41427801）

详细信息

作者简介:
许星宇(1993-),男,江苏苏州人,硕士研究生,主要从事工程地质方面的研究工作。E-mail:xuxy@smail.nju.edu.cn。

通讯作者:
朱鸿鹄，E-mail：zhh@nju.edu.cn

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出版历程
- 收稿日期: 2016-11-27
- 发布日期: 2017-11-19

Development of fiber optic monitoring-based visualization system for strain fields of slopes

School of Earth Sciences and Engineering,Nanjing University, Nanjing 210023, China

摘要

摘要: 近年来分布式光纤传感技术已成为土工测试领域的一股新生力量,在岩土体尤其是边坡的变形监测中发挥了日益重要的作用。基于该技术构建的边坡智能监测系统能捕捉坡表和坡体内部应变场的时空分布特征。由于光纤监测可获取海量数据,如何对其进行高效的提取、处理和挖掘是该技术应用中的瓶颈。基于MATLAB开发的边坡应变场可视化系统通过用户界面实现了对海量光纤监测数据的识别、去噪、预测分析和可视化展示,并具有边坡稳定状态诊断及预警的功能。在一组室内边坡模型试验中,采用该系统成功实现了边坡应变场监测数据的可视化,并对边坡稳定性相关的预警阈值进行了回归分析,体现了其处理数据方便、快捷、高效、直观等特点。该系统未来将在现场边坡的监测和滑坡预警预报中发挥重要的作用。
- 光纤监测 /
- 边坡 /
- 数据处理 /
- 可视化 /
- MATLAB
Abstract: In recent years, the distributed fiber optic sensing technology has become a new tool in the research area of geotechnical tests and measurements and played an increasingly important role in deformation monitoring of geo-structures, especially slopes. Based on this technology, a smart slope monitoring system is established, which enables the collection of temporal and spatial distribution characteristics of surface and subsurface strain fields within slopes. As the fiber optic monitoring data are exceedingly huge, it brings great difficulties to data processing and mining. A visualization system for strain fieldsis of slopes developed using MATLAB. Through software interface, this system allows the identification, denoising, prediction, analysis and visualization of massive fiber optic monitoring data and has various functions of slope stability diagnosis and warning. In the laboratory model tests, this system is successfully used to shows the strain fields within the slope model and to predict the thresholds related to the slope stability condition, which demonstrate the benefits of the system such as convenient, quick, efficient and orderly charalteristics. The proposed system is of great potential in the field monitoring of slopes and landslide warning.
- fiber optic monitoring /
- slope /
- data processing /
- visualization /
- MATLAB

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参考文献(11)

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