基于PS-InSAR密云水库大坝及周边山体垂直位移监测研究
Research on vertical deformation monitoring of the dam and surrounding mountains of the Miyun Reservoir based on PS-InSAR
张丽娟 1李宾 1王琪 2周上梯 1于茜 1王鹏宇 1齐烁 1刘宁1
作者信息
- 1. 北京市密云水库管理处 北京 101500
- 2. 北京市水务规划研究院 北京 100017
- 折叠
摘要
密云水库是一座集防洪、灌溉、供水及发电等多功能于一体的大型水利枢纽工程,同时作为南水北调调蓄水库,又起着重要的调蓄作用,在保障首都水安全中占有重要地位.但随着南水北调水的增加,密云水库的持续高水位运行,对其主副坝的安全运行是非常严峻的考验.通过利用PS-InSAR技术获取密云水库坝体及周边区域变形信息并进行变形监测分析,对分析高水位工况下密云水库主副坝工程性态及可能面临的问题,具有重要意义.结果表明,PS-In-S A R变形监测数据与人工观测数据相近,水库周边山体沉降较突出区域位于水库西南侧和南侧区域;3座大坝变形随着库区水位逐渐升高均呈轻微下沉态势.通过此次试验,为PS-InSAR在大坝变形监测方面的应用提供重要的参考依据.
Abstract
Miyun Reservoir is a large-scale water conservancy hub project that combines flood control,irrigation,water supply,and power generation.As a reservoir for the South-to-North water diversion proj-ect,it plays a critical role in water regulation and storage,and is crucial for ensuring the capital's water security.However,with the increase in water from the south,the continuous high water level operation of Miyun Reservoir presents a significant challenge to the safe operation of its main and auxiliary dams.Uti-lizing PS-InSAR technology to capture deformation data of the dam body and surrounding areas of Miyun Reservoir,and conducting deformation monitoring analysis,is crucial for understanding the engineering behavior and potential issues of the main and auxiliary dams under high water conditions.The results in-dicate that the deformation data from PS-InSAR align closely with manual observations,with prominent subsidence occurring on the reservoir's southwest and south sides.The vertical deformations of the three dams exhibited a slight downward trend as the reservoir's water level gradually rose.This experiment of-fers significant reference value for the application of PS-InSAR in dam deformation monitoring.
关键词
变形监测/PS-InSAR/大坝变形Key words
deformation monitoring/PS-InSAR/dam deformation引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据