基于SBAS-InSAR技术的水工环地质调查在某矿山地质构造沉降检测中的应用
Application of SBAS-InSAR Technology in Hydrogeological and Environmental Geological Survey for Subsidence Detection of Geological Structures in a Certain Mine
寇保德 1周乐勋 1杨兴业1
作者信息
- 1. 青海省地质调查院,青海 西宁 810012;青海省青藏高原北部地质过程与矿产资源重点实验室,青海 西宁 810012;青海省遥感大数据工程技术研究中心,青海 西宁 810012
- 折叠
摘要
为实现有效准确的地表沉降监测,研究利用改进合成孔径雷达干涉(Interferometric Synthetic Aperture Radar,InSAR)技术对某矿山的雷达视线(Radar Line of Sight,LOS)的向地表形变情况进行解算.同时,针对矿区本身较为复杂的地形,结合升降轨影像对垂直向、东向、西向的形变进行解算,得到形变量之后分析其走向.研究结果表明,研究区域内垂直向的变形程度较小,平均变形速率为-3.26～3.26 mm/a;东向和西向的地形分布并不均匀,且变形较大,平均变形速率大部分都超过了20 mm/a.检测系统能够实现有效的三维地表沉降检测.
Abstract
In order to achieve effective and accurate monitoring of surface subsidence,the Small Baseline Subset-InSAR(SBAS-InSAR)technology was studied to calculate the surface deformation of the Radar Line of Sight(LOS)in a certain mine.Considering the complex terrain of the mining area itself,the vertical,eastward,and westward deformations were calculated using ascending and descending track images,and the deformation data were obtained and their trends were analyzed.The research results indicate that the degree of vertical deformation in the study area is relatively small,with an average deformation rate of-3.26 to3.26 mm/a;the terrain distribution in the east and west directions is not uniform,and the deformation is significant,with an average deformation rate mostly exceeding 20 mm/a.The detection system can achieve effective three-dimensional surface settlement detection.
关键词
SBAS-InSAR/矿山地质/沉降检测/形变Key words
SBAS-InSAR/Mining Geology/Settlement Detection/Deformation引用本文复制引用
出版年
2024
NETL
NSTL
万方数据