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上兰靛水库属中型工程,集雨面积48.8平方公里,坝高42.6米,水库最大库容1850万~3。设计泄洪流量为240米~3/秒(p=2%),校核泄洪流量为372米~3/秒(p=0.1%)。溢洪道采用开敞式等宽矩形断面,驼峰堰溢流,宽35米。进水段为明渠,长14米,渠底高程为304米,堰顶高程305米,用半径为10米的圆弧与陡坡联接。陡坡分两段,第一段长124.2米,坡率i=1/5=0.2;第二段长89.2米,坡率i=1/10=0.1,总长257.4米。
Shanglan Indigo Reservoir is a medium-sized project with a catchment area of 48.8 square kilometers, a dam height of 42.6 meters and a maximum reservoir capacity of 18.5 million to 3. The flood discharge was designed to be 240m3 / s (p = 2%) and the flood discharge was checked at 372m3 / s (p = 0.1%). Spillway with open rectangular cross-section, hump overflow overflow, 35 meters wide. Into the water channel for the open channel, 14 meters long, the bottom elevation of 304 meters, crest elevation 305 meters, with a radius of 10 meters arc and steep slope connection. The steep slope is divided into two sections, the first section is 124.2 meters in length, the slope is i = 1/5 = 0.2; the second section is 89.2 meters long, the slope is i = 1/10 = 0.1 and the total length is 257.4 meters.