三峡电站下游坝面钢衬钢筋混凝土管道结构设计  

Structural design of steel lined reinforcement concrete penstocks on downstream dam slope at TGP

作　　者：刘宁[1] 乐东义 刘劲松 

机构地区：[1]长江水利委员会设计院枢纽处

出　　处：《人民长江》1997年第10期21-23,共3页Yangtze River

摘　　要：三峡电站压力管道设计采取下游坝面布置的钢衬钢筋混凝土联合受力结构，大量的计算分析和仿真模型试验成果表明：这种结构具有较好的工作状态和较高的安全度。招标设计成果表明：在现有材料供应条件下，钢衬采用１６ＭｎＲ，厚度２８～３６ｍｍ；钢筋选用Ⅱ级钢筋，分４～５层布置，这一方案是完全可行的。但为了减小施工难度，设计上将进一步研究采用提高钢筋材质及钢衬承载比例等措施，减少外包钢筋混凝土钢筋层数，提高结构的潜在安全度。The jointly stressed steel lined reinforcement concrete penstocks on downstream dam slope are adopted for TGP power station. Numerous calculations and emulation model experiments show that this structure has good performance characteristics and high degree of safety. The bidding design shows that the penstock with 4～5 layer grade Ⅱsteel bars and 28～36 mm thick 16MnR steel plate liner is quite feasible. In order to facilitate the construction work, the further study will be carried out on reducing the number of reinforcement layers by using high strength steel bars and plates as well as raising the loaded percentage of steel liner, consequently, enhancing the potential safety degree of structures.

关 键 词：压力管道 钢筋混凝土管道 三峡工程 水电站 

分 类 号：TV732.42[水利工程—水利水电工程]