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A platform for research: civil engineering, architecture and urbanism
Composite pile plate structure of rail connecting engineering roadbed and construction method
The invention relates to a steel casing reinforced concrete composite pile plate structure of a rail connecting engineering roadbed and a construction method, and the steel casing reinforced concretecomposite pile plate structure of the rail connecting engineering roadbed comprises a reinforced concrete plate, a rail structure, a joist and a steel casing reinforced concrete composite pile, the steel casing reinforced concrete composite pile is drilled into the foundation; and the top of the steel casing reinforced concrete composite pile is fixedly connected with the joist. Compared with theprior art, the core of the steel casing reinforced concrete composite pile is the steel casing and the reinforced concrete structure pile, disturbance of cast-in-situ bored pile construction to surrounding stratums can be greatly reduced through the steel casing, and the strict deformation control requirement of a high-speed railway is met; the existing high-speed rail line structure and driving safety of rail connection engineering construction are effectively controlled, meanwhile, the steel casing has a restraining effect on core reinforced concrete of the steel casing, so that the strengthof a reinforced concrete material is improved, the plasticity and the toughness are improved, and premature local buckling of the steel casing can be delayed or prevented due to the existence of thereinforced concrete.
本发明涉及一种接轨工程路基的钢护筒钢筋混凝土复合桩桩板结构及施工方法，包括钢筋混凝土板、轨道结构、托梁和钢护筒钢筋混凝土复合桩，钢护筒钢筋混凝土复合桩钻入地基内部，钢护筒钢筋混凝土复合桩的顶部与所述托梁固定连接。与现有技术相比，本发明中钢护筒钢筋混凝土复合桩的核心在于钢护筒以及钢筋混凝土结构桩，其中利用钢护筒可大幅度减小钻孔灌注桩施工对周围地层的扰动，满足高速铁路严苛的变形控制要求，有效控制接轨工程施工对既有高铁线路结构及行车安全，同时钢护筒对其核心钢筋混凝土形成约束作用，使钢筋混凝土材料的强度得以提高，塑性和韧性性能得以改善，钢筋混凝土的存在可以延缓或阻止钢护筒过早地发生局部屈曲。
Composite pile plate structure of rail connecting engineering roadbed and construction method
The invention relates to a steel casing reinforced concrete composite pile plate structure of a rail connecting engineering roadbed and a construction method, and the steel casing reinforced concretecomposite pile plate structure of the rail connecting engineering roadbed comprises a reinforced concrete plate, a rail structure, a joist and a steel casing reinforced concrete composite pile, the steel casing reinforced concrete composite pile is drilled into the foundation; and the top of the steel casing reinforced concrete composite pile is fixedly connected with the joist. Compared with theprior art, the core of the steel casing reinforced concrete composite pile is the steel casing and the reinforced concrete structure pile, disturbance of cast-in-situ bored pile construction to surrounding stratums can be greatly reduced through the steel casing, and the strict deformation control requirement of a high-speed railway is met; the existing high-speed rail line structure and driving safety of rail connection engineering construction are effectively controlled, meanwhile, the steel casing has a restraining effect on core reinforced concrete of the steel casing, so that the strengthof a reinforced concrete material is improved, the plasticity and the toughness are improved, and premature local buckling of the steel casing can be delayed or prevented due to the existence of thereinforced concrete.
本发明涉及一种接轨工程路基的钢护筒钢筋混凝土复合桩桩板结构及施工方法，包括钢筋混凝土板、轨道结构、托梁和钢护筒钢筋混凝土复合桩，钢护筒钢筋混凝土复合桩钻入地基内部，钢护筒钢筋混凝土复合桩的顶部与所述托梁固定连接。与现有技术相比，本发明中钢护筒钢筋混凝土复合桩的核心在于钢护筒以及钢筋混凝土结构桩，其中利用钢护筒可大幅度减小钻孔灌注桩施工对周围地层的扰动，满足高速铁路严苛的变形控制要求，有效控制接轨工程施工对既有高铁线路结构及行车安全，同时钢护筒对其核心钢筋混凝土形成约束作用，使钢筋混凝土材料的强度得以提高，塑性和韧性性能得以改善，钢筋混凝土的存在可以延缓或阻止钢护筒过早地发生局部屈曲。
Composite pile plate structure of rail connecting engineering roadbed and construction method
一种接轨工程路基的复合桩板结构及施工方法
SHAN YAO (author) / LIU JIANDONG (author) / XIANG KE (author) / FAN WEIJIE (author) / LIU JUN (author) / CHEN XIXIAN (author) / MA WENJIE (author)
2021-01-12
Patent
Electronic Resource
Chinese
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