中国地质灾害与防治学报2023，Vol.34Issue(6)：127-135,9.DOI:10.16031/j.cnki.issn.1003-8035.202210035
宁波市地面沉降现状分析及风险评价
Analysis and risk evaluation of current land subsidence in Ningbo City
摘要
Abstract
In response to evaluating the current status and assessing the risk assessment requirements of land subsidence in Ningbo City,the characteristics of land subsidence in recent years were analyzed using InSAR remote sensing monitoring data and subsidence point monitoring data from 2017 to 2020.Based on this analysis,a land subsidence risk assessment system has been developed,primarily consisting of six evaluation factors,including ground elevation,susceptibility to subsidence,cumulative ground subsidence,subsidence rate,urban population density,and the proportion of construction land usage.The susceptibility to subsidence is a comprehensive evaluation factor that takes into account geological conditions,hydrogeological conditions,and the impact of human activities.The results of the land subsidence risk assessment indicate that there are no high-risk susceptibility zones for land subsidence in Ningbo City.Medium and low-risk susceptibility zones are primarily associated with factors such as the thick layers of the Holocene soft soil,historical excessive groundwater extraction,localized high-intensity urban development,and coastal land reclamation projects within the region.Finally,the areas were categorized into medium-risk,low-risk,and risk prevention zones,along with corresponding control recommendations for land subsidence risk management.关键词
地面沉降/遥感监测/易发程度/风险区划/管控建议Key words
land subsidence/remote sensing monitoring/susceptible level/risk zonation/control recommendations分类
天文与地球科学引用本文复制引用
高峰,赵团芝,王文军,章旬立,郑凌逶..宁波市地面沉降现状分析及风险评价[J].中国地质灾害与防治学报,2023,34(6):127-135,9.基金项目
浙江省自然科学基金项目(LY19E080013 （）
LQ19E080009) （）
浙江省建设科研项目(2022K112) （2022K112）
闽北山地地质灾害防治福建省高校工程研究中心开放基金项目(WYERC2020-1) （WYERC2020-1）
