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山区和丘陵地区以及某些平原地区的河间地块,地下水位较深,在地面上用普通离心泵吸不上水;也有些地区由于大量开采地下水,使地下水位下降,一些老井因吸程超过离心泵运用范围而吸不上水或吸水量显著降低。为了解决这个问题,北镇县一些社、队采用落井安装方法,效果较好。坑卧:平原地区的曹屯、廖屯公社打完井后,在井周围挖一个坑(深1～2米,坑口2×3米),卸下1～2
In the mountainous and hilly areas and in the Hejian plots of some plains, groundwater levels are deep and can not be absorbed by ordinary centrifugal pumps on the ground; in some areas groundwater levels are lowered due to extensive exploitation of groundwater, Process more than the scope of the use of centrifugal pumps and water absorption or significantly reduce water absorption. In order to solve this problem, a number of clubs and teams in Beizhen County adopted the installation method of falling into the well, and the effect was better. Pit lay: Plain Tuotun, Liao Tuen commune to complete a well, dig a pit around the well (1 to 2 meters deep, pit 2 × 3 meters), remove 1 to 2