基于多期时序DInSAR的泥石流地表位移形变分析  

Multi-period Time-series DInSAR Based Mudslide Surface Displacement Deformation Analysis

作　　者：冯一鸣 王瑞雪[1] 华有涛 杨彦武 向文贤 FENG Yiming;WANG Ruixue;HUA Youtao;YANG Yanwu;XIANG Wenxian(College of Land and Resources Engineering,Kunming University of Technology,Kunming 650093,Yunnan,China;Southwest Nonferrous Kunming Exploration Surveying and Designing(Institute)Inc.,Kunming 650214,Yunnan,China)

机构地区：[1]昆明理工大学国土资源工程学院,云南昆明650093 [2]西南有色昆明勘测设计(院)股份有限公司,云南昆明650214

出　　处：《水力发电》2023年第1期35-40,83,共7页Water Power

基　　金：云南省地质灾害防治技术支撑体系建设方案(云自然资[2020]145号)。

摘　　要：随着气象条件、地质环境的恶化以及人类活动对自然环境的过分扰动,滑坡、崩塌、山洪和泥石流等地质灾害频发,严重威胁人民群众生命财产安全,严重影响基础设施,制约国民经济的发展。为分析泥石流发生机制并提出防治建议,以近年多次发生泥石流的云南省宜良县马家冲社区为研究区,从网站获取哨兵1号数据,在ENVI软件SARscape模块中采用合成孔径雷达差分干涉测量技术得到位移形变结果。结果表明,研究区位移形变呈现周期3年“抬升-抬升-下降”的规律,在周期交替时可能发生泥石流,并针对位移形变提出了防治建议。With the deterioration of meteorological conditions, geological environment and excessive disturbance of the natural environment by human activities, the geological disasters such as landslides, avalanches, flash floods and mudslides occur frequently, which seriously threaten the safety of people’s lives and properties, seriously affect infrastructure and restrict national economic development. In order to analyze the mechanism of mudslide occurrence and propose prevention and control suggestions, the community of Majiachong, Yiliang County, Yunnan Province, where mudslides have occurred many times in recent years, is taken as the study area, the Sentinel 1 data are obtained from the website, and the displacement deformation results are obtained by using synthetic aperture radar differential interferometry in the SARscape module of ENVI software. The results show that the displacement deformation in the study area shows a pattern of “Uplift-uplift-decline” in a 3-year cycle, and mudslides may occur during the alternation of the cycle. Some suggestions are made for the prevention and control of surface displacement deformation.

关 键 词：地表位移形变 地质灾害 泥石流 防治建议 合成孔径雷达 DINSAR 

分 类 号：P642.23[天文地球—工程地质学]