论文部分内容阅读
1 概况盘石头水库2~#泄洪洞(兼导流洞)前期为低洞施工导流,后期在进口的上部改为龙抬头,并设控制闸为永久的泄洪洞。2~#泄洪洞(兼导流洞)洞身段设计总长约653m,其中:导流洞0+038～0+195段长157m,龙抬头洞0+094.55～0+195段水平投影长100.45m,导流、泄洪共用段0+195～0+591长396m。除导流洞的前157m 为临时工程外,其余均为永久工程。导流洞为直洞;龙抬头为斜洞,由抛物线段、斜线段、反弧段组成,与导流洞在0+195桩号相接。洞型均由起点矩形断面渐
1 Overview Panshitou reservoir 2 ~ # spillway tunnel (and diversion tunnel) for the early low-hole construction diversion, the latter part of the import to the top of the rise of the dragon, and control gates for the permanent flood discharge hole. The total length of the tunnel body section of No. 2 ~ # spillway tunnel (also in the diversion tunnel) is about 653m in length, of which: the length of 0-038-0 + 195 section of the diversion tunnel is 157m long, and the horizontal projection length of 0 +094.55-0 + 195 section of the dragonhead cradle is 100.45m , Diversion, flood discharge common segment 0 +195 ~ 0 +591 long 396m. In addition to the first 157m diversion tunnel for the temporary works, the rest are permanent works. The diversion hole is a straight hole; the dragon head is a bevel hole, which is composed of a parabola section, a slash section and an anti-arc section, and is connected with a diversion tunnel at a stake of 0 + 195. Hole-shaped starting point from the rectangular cross-section gradually