水力发电2012，Vol.38Issue(3)：65-68,4.
吉沙水电站高压钢岔管外包混凝土的受力研究
Study on the Stress of High-pressure Steel Bifurcation Concrete Encasement in Jisha Hydropower Station
张红梅 1王志国1
作者信息
- 1. 中国水电顾问集团北京斟测设计研究院,北京100024
- 折叠
摘要
Abstract
The symmetrical Y-type steel bifurcation with crescent rib is used in the diversion system of Jisha Hydropower Station. The branch angle is 70°, and the bifurcation is designed on the condition of exposed arrangement and with internal water head of about 652.2 m. The main body of bifurcation is arranged in diversion tunnel, and two branches are arranged outside the diversion tunnel and supported with reinforced concrete anchorage block. Because the actual construction does not meet the design scheme, the completed bifurcation is affected by discontinuous external constraints. The stresses of bifurcation, concrete encasement and tunnel surrounding rock under different boundary conditions are analyzed by three-dimensional finite element method. The results provide a reference to the actual operation.关键词
高压钢岔管/钢筋混凝土镇墩/沉降/缝隙/吉沙水电站Key words
high-pressure steel bifurcation/reinforced concrete anchorage block/settlement/gap/Jisha Hydropower Station分类
建筑与水利引用本文复制引用
张红梅,王志国..吉沙水电站高压钢岔管外包混凝土的受力研究[J].水力发电,2012,38(3):65-68,4.
