drawdown of groundwater的意思|示意

During the excavation of deep foundation pit, the seepage of groundwater forms a drawdown cone around the foundation pit.

利用该模型分析了在软土地区深基坑开挖引起地下水渗流场的变化。

Owing to the severe over-eatraction of the underground fresh water, the groundwater table lowers greatly, forming a regional drawdown funnel.

沧州地区由于地下淡水严重超采，地下水位大幅度下降，形成区域性降落漏斗。

We calculated the surface subsidence, horizontal displacement, incline, and current curvature using the groundwater drawdown, conical depression influence radius of water cone and ground property.

根据地下水降深、降落漏斗影响半径、岩土工程地质性质，计算降水引发的地表沉降值、水平移动、倾斜、曲率现状值。

The main pollution reasons include the species hydrogeologic conditions, sewage irrigation, landfill of municipal refuse, and regional groundwater drawdown.

最主要的污染原因有：独特的水文地质条件，污灌，砂石坑垃圾回填，及区域地下水位下降。

The influential factors of calculation error for groundwater table are discussed by using the iteration method to find solution of numerical model in the mine drainage forecast of deep drawdown.

本文讨论了大降深矿井排水预测中 ，利用迭代法求解数值模型时 ，地下水位计算误差的影响因素。