水文地质工程地质2018，Vol.45Issue(3)：118-123,6.DOI:10.16030/j.cnki.issn.1000-3665.2018.03.16
基于光纤传感技术的地裂缝物理模型试验
Model tests on the ground fissures based on the optical fiber sensing technology
摘要
Abstract
The formation mechanism of ground fissures in southern Jiangsu is complicated,where disasters occur frequently,and they are threats to the living environment.In order to reveal the regular development pattern of ground fissures,a geophysical model is established under the buried-hill condition and the settlement process with the water-drawing variability is simulated by means of a fiber grating sensor.The experimental results show that (1) The non-uniform settlement caused by groundwater over-exploitation is the most direct factor of the development of ground fissures.The more the groundwater level drops and the higher the groundwater extraction rate is,the more obvious the land subsidence is.(2) The location of the buriedhill formation controls the ground settlement,and the areas suffering land subsidence mostly coincide with those with ground fissures.The ground settlement curve and the fissure distribution where the buried hills develop look basically the same.(3) Result of the model experiment corresponds to the evolution pattern of disasters in the studied fissures area.The experimental research with the physical model based on the fiberoptic technology provides new methods and means for ground fissure studies.关键词
地裂缝/地下水抽采/基岩潜山/光纤传感技术Key words
ground fissures/groundwater extraction/buried-hill/optical fiber sensing technology分类
天文与地球科学引用本文复制引用
顾春生,龚绪龙,孙强,卢毅,吕菲菲..基于光纤传感技术的地裂缝物理模型试验[J].水文地质工程地质,2018,45(3):118-123,6.基金项目
国土资源部公益性行业科研专项经费(201411096) （201411096）
国土资源部地裂缝地质灾害重点试验室开放基金(2014001) （2014001）
江苏省国土厅科技项目(苏南典型岩溶塌陷地裂缝成因机理研究) （苏南典型岩溶塌陷地裂缝成因机理研究）
国土资源部公益性行业科研专项经费(201511055) （201511055）
