钻孔出水量与水位下降的关系,一般认为有直线型、拋物线型、指数型及对数型四种类型(下称“四种类型”)。然而,许多实际抽水试验资料往往不能为这“四种类型”所概括。有人把那些偏离“四种类型”的现象归咎为:①井壁附近含水层导水性能的变化;②区域静水位的变化;③含水层有效厚度的变化这三种原因。笔者认为,只要抽水试验资料正确无误,是“四种类型”本身的局限性导致不能完全描述钻孔出水量与水位降深之间的种种关系。 The relationship between the amount of drilled water and the drop in water level is generally considered to be linear, parabolic, exponential, and logarithmic (hereinafter referred to as “four types”). However, many actual pumping test data often cannot be summarized for this “four types”. Some people attributed those deviations from the “four types” as follows: 1 Changes in the conductivity of aquifers near well walls; 2 Changes in regional hydrostatic levels; 3 Changes in the effective thickness of aquifers. The author believes that as long as the pumping test data are correct, it is the limitations of the “four types” that cannot fully describe the relationship between the amount of water in the borehole and the depth of water level drop.