抽水导致区域性地面沉降中的<em>s</em>-ln<em>r</em>线性关系

杨建民; 纪森林

doi:10.11779/CJGE201609007

抽水导致区域性地面沉降中的s-lnr线性关系 English Version

杨建民^1,2,
纪森林¹

1. 天津大学建筑工程学院土木工程系,天津 300072;
2. 滨海土木工程结构与安全教育部重点实验室（天津大学）,天津 300072

基金项目: 天津大学北洋学者-青年骨干教师计划项目

详细信息

作者简介:
杨建民(1979- ),男,副教授,主要从事岩土工程方面的研究。E-mail: yangjianmin@tju.edu.cn。

中图分类号: TU432
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- 文章访问数: 406
- HTML全文浏览量: 2
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出版历程
- 收稿日期: 2015-04-15
- 发布日期: 2016-09-24

Linear s-lnr relation of regional land subsidence induced by groundwater withdrawal

YANG Jian-min^1,2,
JI Sen-lin¹

1. School of Civil Engineering, Tianjin University, Tianjin 300072, China;
2. Key Laboratory of Coast Civil Structure Safety (Tianjin University), Ministry of Education, Tianjin 300072, China

摘要

摘要: 地下水开采造成区域性地面沉降及其带来的危害已成为全球性的地质灾害之一。对沉降区域内控制点的监测和预测是沉降研究的主要内容。基于弹性力学、有效应力原理和土体线弹性本构关系,在单井抽水造成地面沉降规律性研究的基础上,应用线性微分方程叠加原理论证了多井抽水时沉降-距离仍遵循s-lnr线性关系。通过国内外若干抽水导致的区域性地面沉降实例验证,虽然由于地层不均匀性和地质构造如断裂等影响,各地沉降漏斗并不规则,但都存在以上s-lnr的线性关系。文中揭示的区域性地面沉降中的s-lnr线性关系规律,可用于地面沉降研究中非监测点的沉降值推测和沉降趋势预测,具有重要应用价值。
- 抽水 /
- 沉降 /
- 距离 /
- 对数 /
- 线性
Abstract: The regional land subsidence with its damage induced by groundwater exploitation has become a severe global geologic hazard. Monitoring and forecasting the land subsidence of the control post is the main work in subsidence research. Based on the formula for calculating the land subsidence resulting from one pumping well, using the superposition principle of linear differential equation, a formula for the regional land subsidence for group pumping wells is deduced, which has linear s-lnr relation, where s represents the subsidence and r stands for the distance. The conclusion is proved by the monitoring data of several regions in China and other countries. Though the influences of complex geological structure and subsidence funnels are not regular, linear s-lnr relation exists in all cases referenced. The rules of linear s-lnr relation of land subsidence can be used to predict the vertical displacement for concerned points and cubes applied in engineering practice.
- groundwater exploitation /
- land subsidence /
- distance /
- logarithm /
- linearity

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参考文献(25)

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