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在水文地抟及工稈地质勘察中,影响半徑为探求的重要因素之一。因为它是矿坑、厂基疏干及供水鑽孔布置的主要依据,影响半徑的确定直接关系着工程量的大小。以前本刊曾用相当篇幅介紹了計算影响半径的经验公式及图解法,但是大家知道,利用经验公式所算得的影响半徑与实际情况比較,相差很大。为了准确的测定这一数值,必須打很多的观測孔,既费
In hydrological 抟 and stalk geological exploration, the radius of one of the important factors to explore. Because it is the main basis for mine pit, foundation dry-out and water supply drilling arrangement, the determination of the influence radius is directly related to the amount of the project. Previously, we published quite a bit of empirical formulas and graphical methods for calculating the radius of influence, but as we all know, the radius of influence calculated by the empirical formula is quite different from the actual situation. In order to accurately measure this value, we must hit a lot of observation holes, both fees