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民井抽水在1:20万的水文地质普查中,已被广泛的采用,虽然它有很多的优点,如方便,工具简单,时间短,经济等。但是所有使用过民井抽水的人都有一个共同的反映,就是它的精度不高,甚至相差很远。不过我们认为这个缺点并不能降低它在水文地质普查中的重要性,只要我们找出其真正的原因加以克服,这个缺点还是完全可以消除的。在此想就两个多月来使用民井抽水的体会,对民井抽水误差产生的原因谈谈几点浅见,但由于水平和实际认识都很差,故错误在所难免希予以批评指正。
Manhole pumping has been widely adopted in the 1: 200,000 hydrogeological survey, though it has many advantages such as convenience, simple tools, short time, economy and so on. However, all people who have used well water pumping have a common reflection that their accuracy is not high or even far apart. However, we believe that this shortcoming does not reduce its significance in hydrogeological censuses. If we find out the real reason to overcome it, this shortcoming can be completely eliminated. At this point, I would like to make some comments on the reasons for using pumping wells in the well for more than two months. However, due to the poor level and actual understanding, it is inevitable that mistakes will be criticized and corrected.