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黄土丘陵地区虽然地下水位低,地下水源不足,但也有发展机井的有利条件:广大群众要求迫切,干劲大;土质好,可以打大井,打深井。我县邙山岭地区一般含水层多在五至十丈深,甚至十多丈深,很少透水泉。土壤一般是壤土和红粘土层,团粒结构严密粘实,适应打大井、打深井。根据这一情况,邙山岭上打机井,大体上分作瓶式、井窑式、串式等三种形式。这三种形式的共同特点是:口大、筒粗,一般直径5—7米,出水面广、蓄水量大,克服了地下水位不足的困难。
Although the groundwater level in the loess hilly region is low and the groundwater source is insufficient, there are also favorable conditions for the development of the shaft: the masses demand urgent and energetic; the soil is good and can hit big wells and hit deep wells. My county Dangshan Ridge area generally more than five to ten feet deep aquifer, and even more than ten feet deep, very little water springs. The soil is generally loam and red clay layer, aggregate dense sticky structure, adapted to fight big well, playing deep well. According to this situation, Ji mountain ridge hit the machine well, generally divided into bottle, well kiln type, string and other three forms. Common features of these three forms are: large mouth, thick tube, the general diameter of 5-7 meters, a wide range of water, water storage capacity, to overcome the difficulties of insufficient groundwater level.