夏元平,陈志轩,张毅

• 1:东华理工大学测绘工程学院
• 2:中国矿业大学环境与测绘学院
• 3:东华理工大学江西省数字国土重点实验室

摘要(Abstract)：

针对地面沉降影响因素多且复杂的情况,结合确定性系数相对客观的特性,该文提出了基于InSAR技术的多因子叠加计算权重方法。在SBAS-InSAR方法获取研究区内形变的基础上,对区域内沉降特性及分布特征进行描述,构建单一影响因子的确定性系数(CF),计算出由于降雨、地面载荷、地下开挖等主要影响地面沉降的各因子权重,并对其敏感性进行分析。研究结果表明,城市地面沉降趋于平缓,主要沉降区域有向城市市中心迁移的趋势,在影响地面沉降的多个因子中,降雨的变化对地面沉降的影响最为严重,占整体的40%以上。

关键词(KeyWords)： 地面沉降;SBAS-InSAR;多因子叠加计算权;影响因子

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41962018);; 江西省教育厅科学技术研究一般项目(GJJ160538);; 江西省科技厅科技星火计划项目(2016BBB29002)

作者(Author): 夏元平,陈志轩,张毅

DOI: 10.16251/j.cnki.1009-2307.2020.11.017

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