Enclosure component of fabricated underground structure and connecting structure of enclosure component and arched plate

Abstract

The invention belongs to the technical field of underground construction building, and particularly relates to an enclosure component of a fabricated underground structure. A supporting face used forsupporting an arched plate is arranged on an enclosure component body. A first connecting part at least partially embedded into the enclosure component body is arranged on the supporting face, and thefirst connecting part comprises a first connecting plate used for being connected with the arched plate in a locating manner. The invention further provides a connecting structure of the enclosure component of the fabricated underground structure and the arched plate. The connecting structure comprises the arched plate and the enclosure component. An arc prefabricated part is supported on the enclosure component, and the arc prefabricated part and the enclosure component body are connected through a cast-in-place structure. A second connecting part is arranged at one end of the arc prefabricated part and is connected with the first connecting plate in a locating manner. The first connecting part on the enclosure component and the second connecting part on the arched plate are connected inthe locating manner, the arc prefabricated part and the enclosure component body are connected in a cast-in-place manner, a three-hinged arch stable structure is formed, and the effect of undergroundcolumn-free arch top large space can be achieved conveniently.

Description

technical field [0001] The invention belongs to the technical field of underground engineering construction, and in particular relates to an enclosure component of an assembled underground structure and its connection structure with an arched plate. Background technique [0002] At present, the traditional cast-in-place reinforced concrete structure is mostly used in the construction of underground structures. The design process is complicated and the workload is heavy. The on-site construction process requires a lot of labor of various types, the construction environment is poor, the construction process is complicated, and the construction speed is slow. Affected by all kinds of weather and climate, the construction quality is difficult to guarantee; at the same time, a lot of abandoned construction waste will be generated during the construction process, which not only wastes resources but also pollutes the environment. The construction control of cast-in-place concrete s...

AI Technical Summary

Problems solved by technology

[0002] At present, the traditional cast-in-place reinforced concrete structure is mostly used in the construction of underground structures. The design process is complicated and the workload is heavy. The on-site construction process requires a lot of labor of various types, the construction environment is poor, the construction process is complicated, and the construction speed is slow. Affected by all kinds of weather and climate, the construction quality is difficult to guarantee; at the same time, a lot of abandoned construction waste will be generated during the construction process, which wastes resources and pollutes the environment

The construction control of cast-in-place concrete structures is uneven. After the completion of the construction, there are often various quality defects in the appearance or interior of the concrete structure due to various reasons. It is difficult to repair later and the quality is difficult to guarantee.

[0003] With the development of prefabricated technology, some prefabricated designs and construction technology schemes have emerged for underground structures, some of which are only suitable for open excavation foundation pits with little groundwater and slopes or anchor cables (rods), and are not suitable for The foundation pit adopts internal support and the area with rich groundwater; some adopt conventional underground structures with columns, and the underground space has a limited field of vision. Large-span and column-free assembled underground structures are rare, especially for the assembled underground structures under the cover-excavation construction method.

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