中国地质Issue(1)：300-307,8.
广州金沙洲岩溶区地下水位变化与地面塌陷及地面沉降关系探讨
The relationship between groundwater and ground collapse and land subsidence in Jinshazhou, Guangzhou City
摘要
Abstract
Soluble limestone and Quaternary loose soft soil are widely distributed in Jinshazhou. The fractures in limestone are rich and well connected with each other, which leads to a good connection of groundwater. All these factors provide objective geological environment conditions for karst ground collapse and land subsidence. Since April 2007, affected by tunnel groundwater pumping in high-speed rail construction, groundwater has fluctuated abnormally, which has resulted in ground subsidence and land collapse in Jinshazhou. The monitoring data and comparative analysis show that the karst ground subsidence and land collapse are controlled by groundwater level changes. When groundwater level fluctuates near the bedrock surface, the ground collapse occurs easily, and the land subsidence is related to groundwater level change positively. The relationship between land subsidence and groundwater level changes was also studied and, on such a basis, it is held that the area where groundwater has not yet returned to the normal level still has the hidden trouble of ground subsidence and land collapse.关键词
岩溶地面塌陷/地面沉降/地下水位/相关/发展趋势Key words
karst ground collapse/land subsidence/groundwater level/correlation/development trend分类
天文与地球科学引用本文复制引用
黄健民,邓雄文,胡让全..广州金沙洲岩溶区地下水位变化与地面塌陷及地面沉降关系探讨[J].中国地质,2015,(1):300-307,8.基金项目
“广州市白云区金沙洲岩溶地面塌陷、地面沉降地质灾害调查探测与监测”项目（ZX2012411007008）资助。 （）
