混凝土坝极端暴雨作用响应研究  

The Response of Concrete Dam to Extreme Rainstorm

作　　者：赵峰 陈照阳 尹文俊 李坤鹏 王博[2] ZHAO Feng;CHEN Zhaoyang;YIN Wenjun;LI Kunpeng;WANG Bo(National Grid of Henan Pumped Storage Power Station Limited Liability Company,Xinxiang 453600,Henan China;North China University of Water Resources and Electric Power,Zhengzhou 450045,China)

机构地区：[1]河南国网宝泉抽水蓄能有限公司,河南新乡453600 [2]华北水利水电大学,郑州450045

出　　处：《河南科学》2019年第3期417-421,共5页Henan Science

摘　　要：近年来,各地极端天气频发,导致水库水位暴涨,水库水温变化,而水库水温的变化会产生温度应力,水位导致坝体水压增大.通过应力仿真手段对极端天气情况下的大坝受力进行计算,分析其温度场和应力场,并将其与正常情况下坝体受力进行对比分析.结果表明,坝体暴雨之后,混凝土坝体压应力和拉应力均增大,但不超出坝体混凝土材料的允许值,该结果可为极端天气下水库的运行和调度提供理论依据.In recent years,extreme weather frequently occurs in various places,which causes the water level of the reservoir to soar and the water temperature of the reservoir to rise.The change of water temperature of the reservoir will produce temperature stress,and the water level will cause the dam water pressure to increase.In this paper,stress simulation method is used to calculate the stress of dam under extreme weather conditions.We analyze its temperature field and stress field,and compare it with the stress of dam body under normal conditions.The compressive and tensile stresses of the concrete dam body increase,but do not exceed the allowable value of the concrete material of the dam body.It provides theoretical basis for reservoir operation and operation in extreme weather.

关 键 词：水库水温 应力分析 极端天气 

分 类 号：TV642[水利工程—水利水电工程]