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对蒋璜同志建议的“边坡检验器”提出一些改进意见,如图1。 1)原理:∠DBE与∠ACD夹角两边互相垂直,∠A=∠E=90°, 则两直角三角形DBE与ACD为相似形,故得DE:EB=DA:AC……(1) 即用坡度杆(AB边)紧靠路基边坡,边坡检验器上DA与AC之比值即为其边坡值。 2 )制法:用3公分×3公分×105公分(AB)与3公分×3公分×25(AC)的木条各一根,垂直做成附图形式,在短条的正背面各钉小钉一颗,使AC的距离正面为20公分,背面为10公分;长条的正面(适用于1:3～5:1的边坡)和背面(适用于1:0.75～10:1的边坡)各按一定的距离刻划各种边坡线。为了携带方便,也可用木料或其他材料做成手柄形式,当“手杖”使用(如图
Suggest some improvements to the “Slope Verifier” proposed by Comrade Jiang Huang, as shown in Figure 1. 1) principle: ∠ DBE and ∠ ACD angle between the two sides perpendicular to each other, ∠ A = ∠ E = 90 °, then the two right triangle DBE and ACD is similar to the shape, it DE: EB = DA: AC With slope rod (AB edge) close to the subgrade slope, the ratio of DA to AC on the slope checker is its slope value. 2) system of law: with 3 cm × 3 cm × 105 cm (AB) and 3 cm × 3 cm × 25 (AC) of the wood each one, vertically made in the form of drawings, the front and back of the staple of the nail A small pin, the AC distance from the front of 20 cm, the back of 10 cm; strip front (for 1: 3 ~ 5: 1 slope) and the back (for 1: 0.75 to 10: 1 Slope) Each according to a certain distance all kinds of slope line. For easy carrying, but also can be made of wood or other materials handle form, when the “stick” to use (Figure