摘要
介绍了杭嘉湖平原地面沉降机理、现状及危害。通过对2008-2013年在地面沉降重点监测地区进行一等水准测量获得的地面沉降水准监测网的重复观测成果进行统计分析,计算出该重点沉降地区地面沉降的沉降量、沉降速率,找出地面沉降漏斗分布情况,预测沉降变化趋势,进一步验证地下水位对地面沉降的影响,为该地区经济建设、地面沉降机理性研究提供可靠数据保证。
The present situation and damages and mechanism of the land subsidence in Hangjiahu plain are introduced. The repeated observation results for the land subsidence monitoring network from 2008 to 2013 were obtained by taking first-order-leveling measurement in the key monitoring area. Through statistics and analysis of the results, we calculated the amount and rate of the land subsidence in the key area, discovered the funnel distribution of the land subsidence, predicted the trend of settlement changes, and further verified the influence of underground water on the land subsidence. All these have provided the reliable data guarantee for economic construction, and study on the mechanism of land subsidence in the area.
出处
《地矿测绘》
2014年第3期8-10,共3页
Surveying and Mapping of Geology and Mineral Resources
关键词
杭嘉湖平原
地面沉降
沉降机理
一等水准测量
地下水位
Hangjiahu plain
land subsidence
subsidence mechanism
first-order-leveling
groundwater level
