电站厂房混凝土浇筑分层分块设计  

Layered and Multi-Block Design for Concrete Pouring of Power Plant Buildings

作　　者：郝龙 HAO Long(China Railway 20th Bureau Group No.6 Engineering Co.Ltd.,Xi′an Shaanxi 710032,China)

机构地区：[1]中铁二十局集团第六工程有限公司,陕西西安710032

出　　处：《铁道建筑技术》2025年第2期93-96,共4页Railway Construction Technology

基　　金：中铁二十局集团有限公司科技研发项目(YF2306SL19B)。

摘　　要：水利工程发电厂房建筑物主要由主厂房与副厂房组成,其结构形式多样且复杂,断面尺寸偏差大并存在较多异形结构,且结构强弱约束区情况复杂,应力集中情况明显。电站厂房施工周期一般较长,高低温季节环境温度变化大决定了水工大体积混凝土温控防裂的复杂性。提出一种发电厂房建筑物混凝土浇筑分层分块设计方案,并以某水利枢纽发电厂房右岸侧边块机组段为例,重点阐述控裂措施、分层分块设计思路、仿真计算结果、监测仪器布设思路。通过项目监测数据分析,表明分层分块设计及监测方案的合理性与可靠性,很好地解决了分层分块与监测难题,以期为类似工程施工提供借鉴。The power plant buildings of hydraulic engineering is mainly composed of main plant and auxiliary plant.Its structure forms are diverse and complex,the size deviation of cross section is large,and there are many special-shaped structures.The strong and weak constraint area of the structure is complicated,and the stress concentration is obvious.The construction period of power plant is generally long,and the change of ambient temperature in high and low temperature seasons determines the complexity of temperature control and crack prevention of hydraulic mass concrete.This paper puts forward a layered and multi-block design scheme for concrete pouring of power plant buildings.Taking the right bank side block unit segment of a power plant of a water conservancy project as an example,it focuses on the analysis of crack control measures,layered and multi-block design,simulation calculation results and monitoring instrument layout.Through the analysis of project monitoring data,the rationality and reliability of the design and monitoring scheme of the stratified block are proved,and the difficult problem of layered and multi-block design and monitoring is solved well,in order to provide reference for the construction of similar projects.

关 键 词：发电厂房 大体积混凝土 分层分块设计 仿真优化 安全监测 

分 类 号：TV731[水利工程—水利水电工程]