李家峡水电站取消伸缩节论证  

Verification of Penstocks without Contraction Joints for the Lijiaxia Hydropower Station

作　　者：傅金筑[1] 张淑婵[1] 

机构地区：[1]电力部西北勘测设计研究院

出　　处：《水力发电学报》1997年第1期41-50,共10页Journal of Hydroelectric Engineering

摘　　要：通过论证李家峡水电站发电引水钢管取消了伸缩节，减少投资陆佰多万元人民币。论证收集了中外工程实例，以首例龙羊峡水电站伸缩节观测资料为依据，采用可控内压传载比柔性垫层混凝土埋管新结构，作了必要的分析和计算。Through verification, the contraction joints of penstocks for the Lijiaxia Hydropower Station was cancelled, and the investment is reduced by 6 million RMB. A lot of case histories at home and abroad are collected for reference, and the observed data of contraction joints of the penstocks in the Longyangxia Hydropower Station are used as the basis. A new structure of penstocks embedded in concrete with cushion which can control the internal pressure transmission ratio is adopted. Some basic analysis and calculation have been done. But it remains to be verified by prototype observations during installation and operation.

关 键 词：钢管 伸缩节 垫层 应力 水电站 引水管道 

分 类 号：TV672.2[水利工程—水利水电工程] TV732.41