毕业设计（论文）-都兰县哇沿溢洪道设计.docVIP

? 毕业设计说明书 题 目： 学 生 姓 名： 学 号 指 导 教 师： 专 业 年 级： 所在学院和系： 完 成 日 期： 答 辩 日 期：由于哇沿水库为Ⅲ等中型工程，本次堰面类型采用实用堰。另外由于采用开敞式溢洪道，不需要设置闸门，所以单宽流量值比较大。 泄槽与消能防冲设施相连接，岸边溢洪道的主要落差就集中在这一段。斜槽底坡大于临界坡，所以称其为陡槽。由于地形、地质等原因，或为了减少开挖量，便于消能等，因此泄槽设置了收缩段、扩散段。另外泄槽段必须要进行边坡护理。 消能设施采用消力池消能，池深3m，长30m，宽20m。能够有效消减水流所产生的动能。 Abstract Wa Yan the reservoir in Dulan County, Haixi Prefecture, the geographical position is longitude 98 ° 15 , north latitude 36 ° 10. In the middle and lower reaches in Chahanwusu River, the total reservoir storage capacity is 3337.9 × 104m3, capacity of between 1 ~m3, belongs to III grade and medium engineering. The main buildings of the permanent hydraulic structures in 3, main building project by the dam, spillway, diversion of water hole. Spillway layout pass Wu Huo in dam on the right bank spillway, along the terrain and V is smaller, the open spillway spillway crest elevation, 3397.0m, weir length 30m, the maximum discharge of 917m3/s. Spillway flow is smooth, high discharge capacity, simple structure, safe and reliable to use, is a widely used form of spillway. Spillway usually consists of an intake channel, control segment, chute, facilities for energy dissipation and tail channel and other components, overflow weir axis direction and the axis perpendicular to the direction of the chute, the weir flow direction and chute axis direction. The intake channel layout should make water flow smoothly, avoid sharp turns section suddenly change and flow. The intake channel section is generally made of inverse slope flat slope or not, in order to prevent weathering, proper lining. Because wow along the reservoir for Ⅲ and medium-sized projects, the weir surface types using practical weir. Due to the adoption of open spillway, do not need to set the gate, so the discharge per unit width value is relatively large. The chute and dissipation energy facilities connected with the main spillway, fall is concentrated in this section. The chute bottom slope is