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  5. 基于SBAS-InSAR的延安新区地表沉降监测与分析

基于SBAS-InSAR的延安新区地表沉降监测与分析

来源 :兰州大学学报(自然科学版) | 被引量 : 1次 | 上传用户：nitendo1
【摘 要】
：
以延安新区为研究区,采用SBAS-InSAR方法对2015年建成之后的地面沉降进行监测分析,结果表明, 2015-2019年延安新区雷达视线方向形变速率为-52～13 mm/a,垂直向形变速率为-74～18 mm/a.通过克里金插值发现延安新区有2个明显的西北-东南向的带状沉降区域,最大的沉降区域从南至北贯穿新区;新区东侧有两块抬升区域,抬升量较小.沉降主要发生在填方区,抬升发生在挖方区,填方区沉
【作 者】
：
张宏雪 曾润强 孙萍萍 张毅 赵富萌 杨云鹏 李媛茜 赵淑芬 
【机 构】
：
兰州大学地质科学与矿产资源学院,甘肃省环境地质与灾害防治技术创新中心,兰州730000;中国地质调查局西安地质调查中心,西安710054
【出 处】
：
兰州大学学报(自然科学版)
【发表日期】
：
2021年02期
【关键词】
：
地面沉降 小基线集合成孔径雷达干涉测量技术 削山造地 延安新区 
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论文部分内容阅读
以延安新区为研究区,采用SBAS-InSAR方法对2015年建成之后的地面沉降进行监测分析,结果表明, 2015-2019年延安新区雷达视线方向形变速率为-52～13 mm/a,垂直向形变速率为-74～18 mm/a.通过克里金插值发现延安新区有2个明显的西北-东南向的带状沉降区域,最大的沉降区域从南至北贯穿新区;新区东侧有两块抬升区域,抬升量较小.沉降主要发生在填方区,抬升发生在挖方区,填方区沉降速率呈现慢-快-慢的形变规律.经野外现场验证,该形变监测结果与实际情况吻合.
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