分缝分块对金安桥大坝混凝土温度应力的影响分析  

Impact Analysis of Jointing and Blocking on Concrete Thermal Stress of Jin'anqiao Dam

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：《水力发电》2011年第1期29-30,37,共3页Water Power

摘　　要：金安桥碾压混凝土重力坝最大坝高160 m,顺流向最大长度156 m。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 Jin＇anqiao RCC gravity dam has a maximum height of 160 m and a maximum monolith length along the flow of 156 m. After analyzing the impacts of pouring without longitudinal joint and the transverse joint space on concrete thermal stress, concrete pouring without longitudinal joint is selected for dam construction, and for controlling upstream vertical cracks caused by thermal stress, short joints are set up in the upstream part of dam.

关 键 词：碾压混凝土重力坝 通仓浇筑 横缝间距 温度应力 短缝 金安桥水电站 

分 类 号：TV[水利工程]