摘要
向家坝水电站施工导流具有河床覆盖层深厚、导流流量大、河床宽度相对狭窄、导流程序复杂、施工布置受枢纽及周边环境约束大、设计难度大等特点。侧重从导流建筑物布置、工程后期度汛、施工期通航、发电工期等因素考虑,对多种施工导流方案进行了比选研究,最终选择了第一期围左岸、第二期围右岸的分期导流方案。该导流方式施工程序相对简单、风险较小,多项施工技术处于国内领先水平,完工后各建筑物运行状况良好。
The construction diversion of Xiangjiaba Hydropower Station is characterized as deep overburden of riverbed , large diversion discharge , narrow riverbed , complicated diversion procedure , severe construction layout disturbance by the project and surrounding environment etc ..Several construction diversion schemes are compared in terms of diversion structure layout , flood-passing in the late operation , navigation in construction period and generation schedule .The staged diversion scheme is deter-mined, in which, the left bank is enclosed at first stage and the right bank at second .The diversion scheme has the advantages of simple procedure , small risk and some of the construction technologies are at the nation′s leading level .
出处
《人民长江》
北大核心
2015年第2期71-75,共5页
Yangtze River
关键词
导流方案
导流底孔
缺口
沉井
柔性结构
向家坝水电站
diversion scheme
diversion bottom outlet
gap
sinking well
flexible structure
Xiangjiaba Hydropower Station
