摘要
基于珠三角水资源配置工程预应力复合衬砌足尺模型试验,针对此类衬砌结构型式的施工难点,从作业台车研制、内衬混凝土制备与浇筑、预应力实施等方面开展施工工艺研究。总结了预应力复合衬砌足尺模型的施工内容,并结合模型实施过程中的经验,对现有的作业台车提出改进;随后针对预应力复合衬砌的关键施工工艺展开研究,提出了专门的混凝土配合比、配套振捣系统和预应力分级张拉的顺序,以保证内衬预应力混凝土的施工质量。研究成果为预应力复合衬砌结构的现场施工工艺提供借鉴。
Based on the full-scale model test of prestressed composite lining for water resource allocation project in the Pearl River Delta,the construction technology research was carried out in terms of trolley development,inner lining concrete preparation and casting,prestressing implementation and other aspects to address the construction difficulties of this type of lining structure.Firstly,the construction contents of the prestressed composite lining full-scale model were summarized,and improvements were proposed to the existing trolley by combining the experience in the construction of the model;subsequently,the key construction technology of prestressed composite lining was studied,and specific mix proportion of concrete,matching vibrating system and the sequence of prestress tensioning were proposed to ensure the construction quality.The research results provide reference for the field construction process of prestressed composite lining.
作者
罗晶
唐欣薇
莫键豪
LUO Jing;TANG Xinwei;MO Jianhao(Guangdong No.2 Hydropower Engineering Co.,Ltd.,Guangzhou 511300,China;School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,China)
出处
《广东水利水电》
2024年第1期39-43,共5页
Guangdong Water Resources and Hydropower
基金
广东省重点领域研发计划项目(编号:2019B111108001)。
关键词
预应力复合衬砌
足尺模型
施工工艺
作业台车
分级张拉
prestressed composite lining
full-scale model
construction technology
trolley
tensioning technology
