黄金峡水利枢纽泵站厂房温控措施研究  

Study on the temperature control measure of pumping station house of Huangjinxia Water Conservancy Project

作　　者：董航凯 晏安平 唐寅 DONG Hangkai;YAN Anping;TANG Yin(Hanjiang-to-Weihe River Valley Water Diversion Project Construction Co.,Ltd.,Xi’an 710024,China;Sinohydro Bureau 12 Co.,Ltd.,Hangzhou 310004,China)

机构地区：[1]陕西省引汉济渭工程建设有限公司,陕西西安710024 [2]中国水利水电第十二工程局有限公司,浙江杭州310004

出　　处：《水利建设与管理》2022年第10期8-15,47,共9页Water Conservancy Construction and Management

摘　　要：在泵站厂房坝段大体积混凝土施工和运行期间,温控措施是防止裂缝产生的有效手段。本文以黄金峡水利枢纽泵站厂房坝段为例,基于ANSYS有限元软件模拟泵站厂房坝段施工过程。考虑施工进度以及热力学参数,针对无温控、仅保温以及保温+通水冷却三种措施开展温度场与应力场模拟研究。结果表明:仅保温措施对大坝表面及流道附近混凝土的抗裂能力提升幅度高;保温+通水冷却措施可有效缓解由温差产生的应力问题,且满足大体积混凝土容许应力要求。此研究成果对类似工程的温控设计具有参考意义。During the construction and operation process with mass concrete in the dam section of the pumping station house,temperature control measure is an effective way to prevent cracks. Taking the dam section of the pumping station house of Huangjinxia Water Conservancy Project as an example,this paper simulates the construction process of the dam section of the pumping station house based on ANSYS finite element software. Considering the real construction progress and thermodynamic parameters,the simulation study of temperature field and stress field is carried out for three temperature control measures,namely,no temperature control,thermal insulation only and thermal insulation plus water cooling. The results show that the thermal insulation measure can greatly improve the crack resistance of concrete near the dam surface and flow channel. Thermal insulation plus water cooling measure can effectively alleviate the stress caused by temperature difference and meet the allowable stress requirements of mass concrete. The research results have referential significance for the temperature control design of similar projects.

关 键 词：大体积混凝土 黄金峡水利枢纽 泵站厂房 温控 有限元模拟 

分 类 号：TV544.91[水利工程—水利水电工程]