Ⅳ、丁坝局部冲刷计算与冲刷防护丁坝遭到水毁,大多由于坝头的冲刷下沉破坏,由坝头的局部冲刷造成。所以,丁坝的冲刷埋置深度,主要决定于坝头的局部冲刷深度。 Ⅳ. Calculation of Scour and Impact Protection of Dingba Dam has been damaged by water erosion. Mostly due to erosion of the dam head, it is caused by local erosion of the dam head. Therefore, the depth of embankment embankment buried, mainly determined by the local scour head depth.