摘要
以上海市松江区某轨道交通高架区段为研究对象,通过综合分析地面沉降、地下水位变化、周边工程影响监测和高架沉降监测等数据,从地面沉降的角度多维度分析了该段轨道交通沉降变形特征和成因,指出地面沉降和周边工程施工是该段高架变形的两大主要影响因素,并对其引起的沉降量进行了量化;并通过分层标和水位井的月度监测数据,对高架段的沉降变形时间进行了分析。文章还总结了一套基于地面沉降的轨道交通沉降变形分析流程,为轨道交通等市政基础设施的安全运营提供了技术支撑。
Taking a rail transit elevated section in Songjiang District,Shanghai as the research object,this study analyzed the characteristics and causes of settlement deformation using data on land subsidence,groundwater level change,surrounding engineering impact monitoring,and elevated settlement monitoring.It is pointed out that land subsidence and surrounding engineering construction are the two main influences of elevated deformation.Subsequently,this study attempted to quantify the settlement caused by these two factors.The settlement deformation time of the elevated section was analyzed using monthly monitoring data of the layer benchmark and well.A set of analysis processes of rail transit settlement deformation based on land subsidence was summarized,providing technical support for the safe operation of urban infrastructure such as rail transit.
作者
张金华
ZHANG Jinhua(Shanghai Institute of Geological Survey,Shanghai 200072,China;Key Laboratory of Land Subsidence Monitoring and Prevention,Ministry of Natural and Resources of China,Shanghai 200072,China;School of Geography and Ocean Science,Nanjing University,Jiangsu Nanjing 210023,China)
出处
《上海国土资源》
2020年第4期79-82,87,共5页
Shanghai Land & Resources
基金
上海市科委社会发展科技攻关项目“2020年度科技创新行动计划”(20dz1201200)。
关键词
轨道交通
高架区段
变形监测
地面沉降
rail transit
elevated section
settlement monitoring
land subsidence
