观音岩碾压混凝土重力坝施工期预留缺口过流温控措施研究  

Study on temperature control measures for flowing of remained breach during construction of Guanyinyan RCC Gravity Dam

作　　者：张磊[1] 李小群 张宏 赵红卫 刘英强 李晔[3] 任艳婷[3] 

机构地区：[1]中国水利水电科学研究院结构材料研究所,北京100038 [2]大唐观音岩水电开发有限公司,云南昆明650011 [3]兰州大学,甘肃兰州730000

出　　处：《水利水电技术》2013年第1期56-58,共3页Water Resources and Hydropower Engineering

基　　金：国家自然科学基金资助项目(50909105);国家科技支撑计划项目(2008BAB29B05);水利部公益性行业科研专项(200801007)

摘　　要：采用三维有限元方法,精细模拟了观音岩碾压混凝土重力坝多坝段的施工过程和导流过程,模拟了施工过程中的温度场和应力场,并分多个工况研究了不同温控措施条件下底板和坝体混凝土的温度应力情况。结果表明,表面流水、控制混凝土内部最高温度等措施是积极有效的。Based on 3-D finite element method, the construction and diversion processes of several dam sections of Guanyinyan RCC Gravity Dam are elaboratedly simulated; in which both the temperature field and stress field are simulated, and then the status of temperature stresses of the bottom slab and the dam concrete under various temperature control conditions are studied for several construction conditions. The results show that the measures for the surface flowing and the control on the maximum inter- nal temperature of concrete are active and effective.

关 键 词：预留缺口 过流 内外温差 碾压混凝土 温控措施 观音岩碾压混凝土重力坝 

分 类 号：TV642.2[水利工程—水利水电工程]