water table depression

This paper deals with the essential problems of environmental geology in Zunyi City: pollution, groundwater level recession, land collapse, drought, flood and water logging, and other geological harzards, and provides the measures of prevention and cure for these problems.

本文论述了遵义市的主要环境地质问题:污染、地下水位下降和地面塌陷、干旱和洪涝等。

Research on unsteady seepage problem of bank slope due to drawdown of reservoir water level;

库水位下降时的岸坡非稳定渗流问题研究

The calculation shows that the safety factor declines with the drawdown of the water level under the drainage condition.

计算结果表明,当土体设置为排水条件时,在库水水位下降过程中,安全系数随水位的下降逐渐减小,但当水位下降了20 m以后,由于孔隙水压力给滑面提供了竖直方向的作用力,随着水位的继续下降安全系数反而略有上升。

Owing to the overexploitation for groundwater thus leading the water lowering of groundwater, the formation and enlargement of the cone of depression, and the ground subsidence, such being the case, the geologic hazard will easily occur at any time.

因过量开采地下水而引起地下水水位下降，降落漏斗形成并扩大，同时引发地面沉降，造成地质灾害发生。

Research on causes and countermeasures of groundwater level drop in the Shiyang River Basin

石羊河流域地下水水位下降原因及对策研究

drawdown [groundwater]

水位下降〔地下水〕

depression curve

(地下水位的)降落曲线

The water table has been lowered by drought.

地下水位因乾旱已降低.

Water tables are falling throughout the northern half of China.

中国的北半部，地下水位普遍下降。

Groundwater lowering in construction : a practical guide

建筑物中地下水位的下降 实践指南.

phreatic water surface

地下水(静止)水位

Discussion on usage of rainwater to improve water table decline of cities;

利用雨水改善城市地下水位下降现状的探讨

However, the ground water table tends to descend, accounting for 62% of the cities and regions.

但地下水水位总的发展趋势仍以下降为主，下降区比例高达62%。

The city's water table also drops markedly every year;

每年城市的地下水位也在明显降低。

A method for extraction of depression cone based on digital groundwater level models

基于数字水位模型的地下水降落漏斗提取

Application of Improved Gradient Descent by BP Algorithm to Groundwater Level Forecast

改进梯度下降BP算法在地下水位预测中的应用

Descending of Groundwater Level as Major Factor of Building Cracking

矿山地下水位下降是导致房屋开裂的重要原因

Analysis on Meteorological Contributing Factors of Groundwater Drawdown Funnel in Langfang

廊坊市地下水位下降漏斗的气象成因分析

LONG-TERM SETTLEMENT BEHAVIOR OF PILE FOUNDATION INDUCED BY SEASONAL VARIATION OF GROUNDWATER LEVEL

地下水位变化引起厂房地基沉降的研究

The Monitoring Data Management of Land Subsidence and Ground Water Level in Xi'an

西安市地面沉降与地下水位监测数据管理

the unreasonable development of the water resources has led to the draught-up of rivers, shrinking of lakes and oasis and decrease of ground water tables;

水资源不合理开发导致河流断流，湖泊绿洲萎缩，地下水位下降；

Effect of Groundwater Table Decline on The Eco-environment of The Oasis Along The Lower Reaches of The Tarim River--Taking 34 Regiment for Example

地下水位下降对塔里木河下游绿洲生态环境的影响——以34团为例