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计算岩层的渗透系数需要先知道影响半径。下面介绍的是求影响半径的图解法,其法简便,试制后已使用过,效果良好。这种图解法还有一定的缺点,有待于同志们的指正。甲、使用法:(一)R=575 SH~(1/2) K~(1/2)(库萨金公式)设S=7.5公尺,H=7.5公迟,K=57×10~(-6)公尺/秒(参阅图1)。方法:1.通过H=7.5公尺,S=7.5公尺作一直线2.通过K=57×10~(-6)公尺/秒作一直线平行于前直线,即得K=89公尺(二)R=3000 SK~(1/2)(集合尔特公式)
Calculating rock formation permeability requires knowledge of the radius of influence. Described below is seeking to affect the radius of the graphic method, the method is simple, after the trial has been used, the effect is good. This graphic method has some shortcomings and needs to be corrected by the comrades. A, the use of: (A) R = 575 SH ~ (1/2) K ~ (1/2) (Kushajin formula) Let S = 7.5 meters, H = 7.5 public late, K = 57 × 10 ~ (-6) meters / second (see Figure 1). Method: 1. Make a straight line with H = 7.5 meters, S = 7.5 meters 2. Make a straight line parallel to the front straight line by K = 57 × 10 ~ (-6) m / Ruler (two) R = 3000 SK ~ (1/2) (set of special formula)