地下水位

土壤质地、地下水位埋深、前期雨量以及入渗边界条件对累计入渗量F与入渗强度f之间的关系都有较大的影响。

Soil properties , water table , previous rainfall amount and infiltration boundary condition , all have influences on the relationship between accumulative infiltration amount F and infiltration intensity f .

然而，工程公司阿勒普（arup）的研究表明，下挖并不会影响地下水位，而且没有可预见的原因说明为何会产生影响。

However , a study by engineering firm Arup found that digging down had had no effect on the water table , and there was no foreseeable reason why it should .

环保主义者称引流河水会导致地下水位下降和水井干枯。

Environmentalists say that diverting water from the river will lower the water table and dry out wells .

结果，全球半数人口所在国家的地下水位急剧下降，这其中包括三大粮食生产国——中国、印度和美国。

The result is falling water tables in countries with half the world 's people , including the three big grain producers —— China , India and the U.S.

当抽水使地下水位下降时，剥落力σb增大。

When pumping water makes the underground water drop , the spalling force increases .

用改进的BP算法预报灌区地下水位

Forecast Groundwater Level in Irrigation District Based on Improved BP Algorithm

运用BP网络预测地下水位

Using BP networks to forecast groundwater levels

基于OpenGL的地下水位动态模拟

Dynamic modeling of groundwater based on OpenGL technology

用PAM及波涌技术优化地表灌溉控制地下水位并减少盐碱化

Optimizing Surface Irrigation for Water Table Control and Salinity Minimization by Polymers and Surge Technologies

LM算法的神经网络在灌区地下水位预测中的应用研究

Irrigation Area Groundwater Table Prediction by Neural Network Which Based on LM Algorithm

地下水位变化与基坑稳定性的FLAC模拟分析

The simulation of the foundation stability by FLAC under the change of subsoil water level

在采用GPS监测、深部位移监测、宏观地质巡视的同时，还监测降雨量、地下水位、库水位及不合理的人类工程活动。

While adopting GPS monitoring , deep displacement monitoring and macro-geological inspection tour , we monitor rainfall , the change in groundwater level and reservoir water level as well as improper human engineering activities .

地下水位受季节影响较大，季节性差异明显，地下水位年变幅1～2m。

Ground water level is greatly affected by different seasons with obvious seasonal diversity and has1 ~ 2m annual variation amplitude .

模型将地下水位动态相关预测方法与GIS结合起来形成应用型GIS专业模型，可用于单井点或区域地下水位动态预测评价。

The model forms the professional GIS model by combining the relevant forecast methods of groundwater regime and GIS method , which can be used to forecast the groundwater regime in the single well or reginal groundwater areas .

G4劈理带的渗漏不是引起左岸地下水位偏高的主要原因；

The seepage from cleavage G 4 is not the main cause of the high groundwater level .

根据地下水位与其影响因素之间存在的映射关系，建立了一种改进的RBF神经网络模型，并分别通过减聚类和监督学习算法对网络参数和权值进行训练。

Based on the relationship between the groundwater level and its main influential factors , by using subtractive clustering and supervised learning algorithm for training , an improved learning algorithm for RBF neural networks is presented .

本文分析了吉6井地下水位动态的干扰因素，论述了该井于1983年11月至1986年四月国内Ms≥5.0级，国外Ms≥7.0级共116个远震前的各种反应。

In this paper , the author analysed interference factor of underground water in JI_6 ~ # well , and deals with various reactions prior to 116 teleseisms in which Ms ≥ 5.0 is at home and Ms ≥ 7.0 abroad .

杉木造林选择地下水位在1.5m以下，排水良好的采伐更新迹地并采用灌浆栽植法效果较好。

Effect of China fir afforestation is better with less 1.5 metre-underground water level , well drained stub land selected and filling cultivation method used .

作者在收集已有观测井地下水位资料的基础上，利用人工神经网络技术中的动量BP算法对上海地区第Ⅲ承压含水层的地下水水位进行了动态预测，结果表明，该法具有较高的预测精度。

Based on collected data of wells , regime prediction of the groundwater level of wells in the 3rd confined aquifer in Shanghai area has been developed using momentum BP algorithm of artificial neural network . The result indicates that it has higher precision on prediction .

提出了用基于遗传算法的门限回归模型（TR）描述地下水位及其影响因子之间复杂非线性关系的新方法。

The threshold regressive ( TR ) model is suggested to describe the complex nonlinear relationship between groundwater level and its influence factors . A general and simple scheme is presented for the TR modeling .

地下水位降幅在0～5m之间，天然植被覆盖变化不大；天然植被覆盖变化敏感区域居于5~8m降幅之内，超过10m降幅将出现严重退化区；

In the typical study region , change area of nature vegetation is not obvious in 0 m-5m ; ( 2 ) there were the sensitive region in 5 ~ 8 m and severe decline area over 10 m ;

植被盖度减少始于草本植物盖度受损，与群落多样性受损的临界地下水位相同，发生在地下水埋深大于4m；

The decrease of vegetation coverage was due to decline of herbaceous coverage . The threshold depth of groundwater level for coverage degradation was 4 m. This depth was the same as the depth of groundwater for degradation of species diversity .

沧州市水资源短缺，深层地下水严重超采，已形成大面积区域地下水位降落漏斗，地面沉降已达2m，生态环境严重恶化。

The Cangzhou city is short of water resources , the deep groundwater has been overdrawn seriously , it has caused the regional cone depression of deep groundwater in large area , the land subsidence has reached 2 m , the eco-environment has deteriorated seriously .

基于Bishop有效应力公式、单相流固结理论以及阻抗函数递推方法，研究考虑地下水位影响时双层土中桩的纵向振动特性。

Based on Bishop ′ s effective stress formula , one-phase flow consolidation theory , and impedance function recursive method , considering the effect of underground water level , the dynamic response of a pile embedded in two-layer soil and subjected to a vertical load is theoretically investigated .

通过对湘潭市区35个地下水动态监测点10余年监测发现：地下水位出现了10年来的最低位，总平均下降0.5m；

Through monitoring 35 moving observation point for the groundwater in Xiangtan downtown , it is discovered that the groundwater table emerged at the lowest level during this ten years . The groundwater table decreases in 0.5 m at average ;

地下水位上升将降低地基土承载力特征值fa和软弱下卧层地基承载力特征值faz，并影响到地基换土垫层的处理设计；

When water rises , the characteristic value f_a of subgrade bear capacity and the characteristic value f_ ( az ) of subgrade bear capacity of weak underlying stratum will decrease , and the design of ground cushion treatment will be influenced .

研究表明，区内地下水开发利用程度较高，农业的季节性开采是影响地下水动态的主要因素，地下水位表现为典型的开采型动态，在现有地下水开采条件下，地下水位将以1ma的速度下降。

It 's suggested , seasonal agriculture exploitation is the main factor to affect the groundwater regime , and if we keep the actual state , the groundwater level will decline by 1m / a.

在1.4m、2.4m、3.4m地下水位下，梭梭的光合速率、呼吸作用、量子效率随水位的降低而降低，光补偿点随水位的降低而增大；

At the water table of 1.4 m , 2.4 m and 3.4 m , the photosynthetic rate , the respiration rate and the apparent quantum efficiency ( AQE ) decreased with reduce of the water table , but light compensation point ( LCP ) increased .

持续成壤阶段河流基面和地下水位均较低，年降雨量约为500～800mm，相当于现今的温带地区，干湿周期变化明显，地下水升降频繁。

During the period of ongoing pedogenesis , river base level and groundwater remained lower , the annual precipitation was about 500 - 800 mm , which corresponded to that of modern temperate zones , drying - wetting cycles were apparent and groundwater was frequently fluctuated .

地下水位对蒸散量的影响在它小于1.5m时不显著，而在1.5～1.75m之间时，蒸散减小较快，主要由于土壤蒸发减小显著，冠层蒸腾稍有增加。

The response of ET to groundwater table is apparent while water table is between 1.5 ~ 1.75 m depth . When the water table is less than 1.5 m , ET decreases due to less intensity of soil evaporation , whereas canopy transpiration is a little bit enhance .