水阳江大桥水中桩基及承台施工关键技术
发布时间：2018-08-09 11:07
【摘要】：最近二三十年,铁路系统和公路系统发展迅猛,桥梁越来越广泛的应用于跨越大江大河或者其他障碍物的工程中。深水基础应用于众多桥梁工程中,深水基础的特点有周期很长、难度很大、风险很高等,这也成为桥梁施工的重要因素。因此,在进行桥梁施工过程中,对深水基础的研究变得非常有意义。以水阳江大桥480#和481#桥墩基础的施工为研究对象,系统研究了该桥水中承台的施工技术和拉森IV型钢板桩围堰在该工程中的具体应用。研究了钢管桩平台的设计和安装施工、承台的具体施工过程,以及大体积混凝土的温控技术。论文对水阳江大桥钢板桩围堰的吊装施工、插打施工、土方开挖、内部支撑的安装进行了研究,又对钢板桩围堰系统在开挖过程中的不同工况下进行了验算。对大体积混凝土进行了施工技术优化,并通过温度监测,对大体积混凝土的温降效果进行了验证,为以后类似工程施工提供经验。
[Abstract]:With the rapid development of railway system and highway system, bridges are more and more widely used in large rivers and other obstacles. Deep-water foundation is used in many bridge projects. The characteristics of deep-water foundation include long period, great difficulty and high risk, which has become an important factor in bridge construction. Therefore, in the process of bridge construction, the study of deep-water foundation becomes very meaningful. Taking the construction of 480# and 481# piers foundation of Shuiyang River Bridge as the research object, the construction technology of the cap in water and the concrete application of Larsen IV steel sheet pile cofferdam in the project are systematically studied. The design and installation of the steel pipe pile platform, the concrete construction process of the cap and the temperature control technology of the mass concrete are studied. In this paper, the hoisting construction, inserting construction, earthwork excavation and installation of internal support of steel plate pile cofferdam of Shuiyang River Bridge are studied, and the checking calculation of steel plate pile cofferdam system under different working conditions during excavation is also carried out. This paper optimizes the construction technology of mass concrete and verifies the effect of temperature drop of mass concrete through temperature monitoring, which provides experience for the construction of similar projects in the future.
【学位授予单位】：石家庄铁道大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U445.4
本文编号：2173882
[Abstract]:With the rapid development of railway system and highway system, bridges are more and more widely used in large rivers and other obstacles. Deep-water foundation is used in many bridge projects. The characteristics of deep-water foundation include long period, great difficulty and high risk, which has become an important factor in bridge construction. Therefore, in the process of bridge construction, the study of deep-water foundation becomes very meaningful. Taking the construction of 480# and 481# piers foundation of Shuiyang River Bridge as the research object, the construction technology of the cap in water and the concrete application of Larsen IV steel sheet pile cofferdam in the project are systematically studied. The design and installation of the steel pipe pile platform, the concrete construction process of the cap and the temperature control technology of the mass concrete are studied. In this paper, the hoisting construction, inserting construction, earthwork excavation and installation of internal support of steel plate pile cofferdam of Shuiyang River Bridge are studied, and the checking calculation of steel plate pile cofferdam system under different working conditions during excavation is also carried out. This paper optimizes the construction technology of mass concrete and verifies the effect of temperature drop of mass concrete through temperature monitoring, which provides experience for the construction of similar projects in the future.
【学位授予单位】：石家庄铁道大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U445.4
【引证文献】
相关硕士学位论文 前1条
1 高小亮;无定河大桥水中基坑开挖及承台施工关键技术[D];长安大学;2017年
，本文编号：2173882
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