[关键词]
[摘要]
通过对南通地区地面沉降发展历史的总结, 分析了南通地区区域地面沉降的特征和形成机理, 指出地面沉降 的发生主要与不合理过量开采地下水引起的水位下降有关, 南通地区地下水水位下降速率大的区域与地面沉降速 率大的地区有较好的一致性, 地下水水位埋深越大的地区地面沉降下降速率越大, 两者呈现正相关性关系。最后提 出了相应的地面沉降防治对策和措施。
[Key word]
[Abstract]
In this paper, the development history and characteristics and formation mechanism of land subsidence in Nantong were analyzed, which suggested that land subsidence is related to groundwater level decline caused by excessive groundwater pumping. The results showed that the rate of land subsidence has positive correlation with groundwater level decline and the ar2 ea with high land subsidence rate is consistent with the area of high groundwater level decline rate. Finally, control measures of land subsidence prevention were proposed.
[中图分类号]
[基金项目]
江苏沿海地区综合地质调查子项目( 苏国土资函[ 2013]255 号文)