1965年初,在浙江省文成县百丈沶二级水电站(下简称百二电站)设计中选用了干砌石溢流坝方案(见图1和图2)。该坝高20.1米,净溢流宽度40.0米,最大泄量290秒立方米,坝体工程量1.36万立方米。这种坝型的断面略大于浆砌石坝,仅上游防渗斜墙和溢流堰 At the beginning of 1965, a dry masonry spillway dam scheme was selected in the design of the Baizhangliao II Hydropower Station in Wencheng County of Zhejiang Province (see Figure 1 and Figure 2). The dam height of 20.1 meters, the net overflow width of 40.0 meters, the maximum discharge of 290 seconds cubic meters, dam construction volume of 13600 cubic meters. This dam-shaped cross-section slightly larger than the masonry dam, only upstream seepage sloping walls and overflow weir