论文部分内容阅读
我国西北地区绝大部份河流是山溪性河流,其特点是:(1)洪枯流量变差大。(2)多泥砂(大多为推移质),並且集中于洪水期。解放后三十多年来,西北地区修建了许多低水头有坝(闸)引水枢纽工程,这些工程的主要型式有(1)印度式(正面泄洪,冲砂,侧面引水)。(2)费尔干式(又称弯道式,正面引水,侧面泄洪、冲砂)。(3)底栏栅式(利用底栏栅排除推移质,由廊道引水)。
Most of the rivers in northwestern China are mountain streams, which are characterized by: (1) Great changes in flood and flood flux. (2) Much silt (mostly pluton), and concentrated in the flood season. Over the past thirty years after the liberation, many low-head dam (sluice) diversion projects have been constructed in the northwest of China. The main types of these projects are (1) Indian (frontal flood discharge, sand flushing and side diversion). (2) Fair dry type (also known as curved road, front water diversion, side discharge, red sand). (3) at the end of ramps (use of the bottom gate to exclude the push quality, by the corridor water).