中国地质调查2025，Vol.12Issue(5)：101-108,8.DOI:10.19388/j.zgdzdc.2024.331
分布式光纤感测技术在皖南山区滑坡变形监测中的应用
Application of distributed optical fiber sensing technology in landslide deformation monitoring of the southern mountainous area in Anhui Province
摘要
Abstract
The southern mountainous area in Anhui province has complicated landform and geological structure,which is the most hazardous geological disaster-prone area in Anhui province.The distributed fiber optic sensing(DFOS)technology was used in the southern mountainous area in order to overcome the defects of conventional sensors,and was combined with the characteristics of the engineering environment of its landslide deformation.DFOS technology included deep in-situ monitoring,soil pressure and groundwater monitoring,and the landslide stability was also analyzed.The results show that the landslide is in initial deformation stage or uniform deforma-tion stage during the monitoring period,and the maximum thickness of the landslide body does not exceed 12.5 m.The cumulative displacement and displacement rate of the landslide decrease with increasing depth,and the variation becomes minimal at a depth of approximately 12 meters.Additionally,the soil pressure fluctuations at different depths are generally small,and the rate of groundwater level fluetuations is in a mutually offsetting state.The landslide as a whole is in a relatively stable state.The research results could provide scientific basis for revealing the internal evolution laws of landslide in the southern mountainous area,implementing effective early warning and prediction,and promoting the popularization of optical fiber monitoring technology.关键词
滑坡/分布式光纤/变形监测/稳定性分析Key words
landslide/distributed optical fiber/deformation monitoring/stability analysis分类
天文与地球科学引用本文复制引用
刘建奎,刘向红,魏路,王志强..分布式光纤感测技术在皖南山区滑坡变形监测中的应用[J].中国地质调查,2025,12(5):101-108,8.基金项目
安徽省自然资源厅项目"黄山市典型滑坡地质灾害光纤监测及预警系统(编号:2021-g-2-6)"与"基于多参数耦合的安徽"两山地区"滑坡监测预警阈值研究与应用(编号:2021-K-7)"联合资助. （编号:2021-g-2-6）
