摘要
根据天津1950年以来的研究成果,结合长期监测资料,首次对天津地面沉降影响因素进行量化分析。通过本次分析发现不同地区地面沉降影响因素组成不同,即使开采同一层位地下水其引起的沉降变形量差异较大,这给地面沉降量化分析增加了难度。本次主要依据地面沉降影响因素分布,对天津市地面沉降影响因素进行分区,根据近5年来沉降速率均值又进一步分了亚区;以D2亚区为例,分析了地面沉降影响因素比例,其中500m以浅地下水及500m以深流体开采比例均较大,因此在控制该区地面沉降发展时可以对500m以浅及500m以深流体开采分别建立监管体系。
According to the results of research on the Tianjin area conducted since1950and the large amount of long-termmonitoring data,a quantitative analysis of the land subsidence influence factor in Tianjin was administered for the first time.The analysis found that the land subsidence influence factor is different for different regions,even if the same stratum ofgroundwater mining caused the deformation of settlement to be larger.The quantitative analysis to increase the difficulty ofground settlement.Through the consideration of the main factors affecting the distribution of the ground settlement,includingthe Tianjin city land subsidence influence factor,and based on the nearly five years of sedimentation rate data,the region isfurther divided by subregion.Using subregion D1as an example,analyzes the factors of ground settlement ratio,which isin500meters and deep500meters of the groundwater and fluid mining ratio is larger,therefore in the control of the groundsubsidence development to in500meters and deep500meters to fluid a supervision system of mining was set up.
作者
罗立红
白晋娬
吕潇文
邵兴
LUO Li-Hong;BAI Jin-Wu;Lü Xiao-Wen;SHAO Xing(Tianjin Monitoring Central Station of Geological Enviroment, Tianjin 300191, China)
出处
《上海国土资源》
2017年第2期18-21,共4页
Shanghai Land & Resources
基金
中国地质调查局地质调查项目(水[2014]02-031-011)
天津市国土资源和房屋管理局科研项目"天津市低海拔地区地面沉降灾害调查及防治对策研究科研"(国土房任[2015]1号)
关键词
地面沉降
影响因素
量化分析
长期监测数据
land subsidence
influence factors
quantitative analysis
long-term monitoring data
