一、地下水的定义及分类所谓地下水,有广义和狭义的不同概念。广义的地下水泛指埋藏在地下岩土空隙中所有的水—土壤水、潜水和承压水。如图1—1所示。其中土壤水占据的只是岩土可充水孔隙的一部分;而另一部分则被空气或水蒸气所占据,所以常把接近地面的,含水而不饱和的这一地带叫包气带,或非饱和带。汽态水、薄膜水和毛管水都处在非饱和带中,它们总称为土壤 First, the definition and classification of groundwater The so-called groundwater, broad and narrow sense of the different concepts. Groundwater in a broad sense broadly refers to all water - soil water, submersible and confined water buried in the underground rock and soil voids. As shown in Figure 1-1. Soil water occupies only part of the pores that can be filled with rock and soil; while the other part is occupied by air or water vapor, so the near-surface water-saturated and unsaturated zone is usually called aeration zone or unsaturated band. Water vapor, film water and capillary water are in the unsaturated zone, they collectively referred to as soil