我站断面时常出现塌岸现象,不易安置水尺。为了克服观测水位的困难,我们安置了「悬锤水尺」。安设方法是作长约四公寸、宽约六公分之小木椿,间隔○.八——一.○公尺,打在断面线上,用水平仪施测,使其椿顶在同一高度上,平置水尺板于椿顶(水尺下端安一小滑轮更好),水尺零点指向水边,这时椿顶高加水尺板厚度,即为水尺顶高程。再用二弦系垂球,使锤球尖端与水尺零端比齐,量其长度与水尺等长处作一记号。观测水位时,将垂球沉至水面,绳上所作记号在尺上所指之位置,即为水尺读数。观 I often collapse section of the phenomenon of bank collapse, not easy to settle the water meter. In order to overcome the difficulty of observing the water level, we installed a “sling hammer”. The installation method is for about four inches long, about six centimeters in width of small cedar, interval ○. Eight - one. ○ meters, hit the cross-section line, with the level of the instrument to measure, so that its top in the same height , Flat water feet at the top of the Chun (water safety foot of a small pulley at the bottom of the better), the zero point of the water meter points to the water, then the height of the top of Chunmiao plate thickness, that is, the water meter top elevation. Then use the two strings pedicle ball, so that the tip of the hammer ball and the water end of the zero-Qi, the amount of its length and the water scale and other advantages for a mark. When observing the water level, the vertical ball sinks to the surface of the water. The mark on the rope refers to the position on the ruler, which is the reading of the water gauge. View