摘要
通过水力学整体模型试验,研究确定了澜沧江黄登水电站截流工程戗堤的布置、龙口位置的选择、截流水力学参数及进占过程中抛投方式的选择。模型试验也研究了水流对1#导流洞进口全年围堰爆破后的冲渣情况及对导流洞分流能力的影响。结果表明,不论导流洞进口爆渣为何种形式,在Q=695~1 380 m3/s流量下都无法将爆渣冲出导流洞,模型试验为工程施工及技术方案的实施提供了科学的依据。
The arrangement of closure dike in the construction of Huangdeng Hydropower Station located in Lancang River as well as its location of gap section is chosen by model test, besides the closure hydraulic parameters and the way of dumping when advancing are also determined. The effects that water brings to residues generated by cofferdam blasting at the enter part of the tunnel as well as the distributary ability that these effects influenced are studied. According to the experiment＇s resuits, the residues can not be swept by water in both conditions （Q = 695 - 1 380 m^3/s）, which gives guidance to construction in a scientific way.
出处
《水利科技与经济》
2014年第4期125-127,共3页
Water Conservancy Science and Technology and Economy
关键词
模型试验
分流能力
截流
戗堤布置
model test
distributary ability
river closure
arrangement of closure dike
