上海国土资源Issue(4)：44-48,5.DOI:10.3969/j.issn.2095-1329.2014.04.010
北京温榆河冲洪积扇地面沉降特征及机理研究
Land subsidence on the Wenyu River alluvial fans, Beijing
摘要
Abstract
Land subsidence is developing rapidly in Beijing. The maximum deformation rate has reached 13 cm/year and this threatens urban safety. Research into the subsidence characteristics of the different layers is being used to quantitatively study the mechanisms of land subsidence and the serious problems associated with slow subsidence. This paper investigates the area with the largest cumulative subsidence (Baxianzhuang on the Beijing Wenyu River al uvial fans) and analyses the relationships among groundwater pumping, the dynamic characteristics of groundwater, and layer compaction. We will consider the elastic deformation of the shallow and deep layers, and elastic-plastic deformation of deep layers, fol owing water release, using multilayer compaction data. By analyzing the impact of the nature of the layers, consolidation history, and physical and mechanical properties of compaction, we aim to determine the main regulating layer of groundwater pumping under the present land subsidence scenario.关键词
冲洪积扇/地面沉降/地下水开采/弹塑性形变/固结历史Key words
al uvial fans/land subsidence/groundwater pumping/elastic-plastic deformation/consolidation history分类
天文与地球科学引用本文复制引用
王荣,罗勇,杨艳,周毅,刘明坤..北京温榆河冲洪积扇地面沉降特征及机理研究[J].上海国土资源,2014,(4):44-48,5.基金项目
北京市委组织部优秀人才培养资助项目(z131100005613022) （z131100005613022）
中国地质调查局地质调查项目(水[2013]01-032-004) （水[2013]01-032-004）
北京市科委科研项目(Z131100005613022) （Z131100005613022）
