金安桥坝体混凝土分缝分块对温度应力的影响研究  

The Researsh of Jointing and Blocking on Jinanqiao Dam Concrete and Its Influence on Thermal Stress

作　　者：吕大勇[1] 陈利刚[1] 

机构地区：[1]中国水电顾问集团昆明勘测设计研究院,云南昆明650051

出　　处：《云南水电技术》2008年第1期23-24,29,共3页

摘　　要：金安桥混凝土重力坝最大坝高160m，顺流向最大长度156m。通过对坝体混凝土通仓浇筑和横缝间距对温度应力的影响分析，确定大坝混凝土采用通仓浇筑，同时为控制和减少温度应力引起的劈头裂缝，在坝体上游面设置短缝。The Jinanqiao RCC Dam has a maximum height of 160 m, Its maximum monolith length was 156 m. Through the analysis of pouring without longitudinal joint and transverse joints space and its influence on thermal stress, pouring without longitudinal joint was decided in concreting dam concrete. In order to control and reduce upstream vertical crack which caused by thermal stress, short slit was setup on upstream dam face.

关 键 词：通仓浇筑 横缝间距 温度应力 短缝 

分 类 号：TV642.3[水利工程—水利水电工程] TU375[建筑科学—结构工程]