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Method for improving installation precision and construction progress of assembled precast box culvert

A technology for installation accuracy and construction progress, which is applied in the field of improving the installation accuracy and construction progress of prefabricated box culverts, and can solve the problems of low installation accuracy and long construction period of prefabricated box culverts

Active Publication Date: 2019-01-04
CHINA COMM NORTH ROAD & BRIDGE +1
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Problems solved by technology

[0005] This application provides a method to improve the installation accuracy and construction progress of the assembled prefabricated box culvert, so as to solve the problem of low installation accuracy and long repair period of the assembled box culvert

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  • Method for improving installation precision and construction progress of assembled precast box culvert

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Embodiment Construction

[0024] Prefabricated box culvert, also called assembled box culvert, is a prefabricated box-shaped structure of reinforced concrete, which can be used as a large-scale flood discharge channel, urban rainwater and sewage pipeline, large-scale water storage tank, comprehensive pipe gallery, underground pedestrian passage, underground motor vehicle Tunnels, small garages and other municipal construction environments. The most common shape of prefabricated box culverts is square, but in addition to square box culverts, there are also rectangular and U-shaped box culverts based on square box culverts according to use requirements, force conditions, address basis, construction and manufacturing conditions, etc. Cover board, two U-shaped splicing, one side or upper and lower arches, single hole or multi-hole culvert and other shapes. Compared with cast-in-place construction, the prefabricated prefabricated box culvert 1 can shorten the construction time and promote civilized and gree...

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Abstract

The present application relates to the technical field of building construction, in particular to a method for improving the installation precision and construction progress of an assembled precast box culvert. The method adjusts the elevation according to the design requirement before the concrete is filled, and then concrete is fill, thereby eliminating the labor of repeatedly repairing and adjusting the elevation many times. The anti-segregation property of self-compacting concrete, the fluidity and filling performance of concrete are better than that of ordinary concrete. No vibration is required, and the self-compaction performance is good. Compared with the conventional repeated repair and adjustment elevation, the manual and labor intensity can be saved. The elevation is designed once, the foundation does not need to be repaired and adjusted repeatedly, and installation can be carried out before the repair mortar or concrete reaches a certain strengthe, so that the time is savedto a certain extent. The problems of low installation precision and long repairing construction period of assembled box culvert are solved.

Description

technical field [0001] The application relates to the technical field of building construction, in particular to a method for improving the installation accuracy and construction progress of an assembled prefabricated box culvert. Background technique [0002] Prefabricated box culvert is a prefabricated reinforced concrete box-shaped structure. It is a rapid construction process for box culverts. It has the characteristics of factory prefabricated processing and on-site assembly. It is mainly used for engineering projects that require a short construction period. At present, prefabricated box culverts are widely used in China. They adopt centralized prefabrication on site, and the construction quality is easy to control, the construction period is short, and the construction efficiency is high. [0003] Generally, the installation and construction of prefabricated box culverts use on-site binding of steel bars, formwork support, and pouring of concrete. The construction per...

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Application Information

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IPC IPC(8): E01F5/00
CPCE01F5/005
Inventor 李茜刘丹娜殷胜光杨伟威王家贺张美林
Owner CHINA COMM NORTH ROAD & BRIDGE
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