Fabricated concrete box retaining wall and construction method thereof

Abstract

The invention discloses a fabricated concrete box retaining wall and construction method thereof. The fabricated concrete box retaining wall comprises a cast-in-situ foundation and a wall body arranged on the cast-in-situ foundation, concave string-shaped grooves are formed in the upper surface of the cast-in-situ foundation, the wall body is of a multiple-layer structure, each layer of the wall body comprises a plurality of prefabricated concrete box single bodies, the end parts of the two adjacent prefabricated concrete box single bodies in a single layer wall body are connected through side wall clamping blocks, compared with a traditional gravity retaining wall, according to the fabricated concrete box retaining wall, hollow concrete boxes are filled with waste soil stone materials, masonry or concrete cubic amount is reduced about 40 %, the cubic meter of earth and stone waste in engineering is utilized reasonably, the waste cubic of engineering is reduced, the engineering cost can be reduced over 15 %, the smallest assembling unit of the fabricated concrete box retaining wall is the prefabricated concrete box single bodies, all the prefabricated concrete box single bodies are the same in size, standardized production is facilitated, assembling construction is convenient, and the field construction period can be lowered over 30 %.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering, and in particular relates to a prefabricated concrete box retaining wall and a construction method thereof, which is suitable for rapid support and protection of slopes in new projects such as roads, railways, and municipal projects, and can also be used for slopes during the operation period Rapid reinforcement and treatment of instability and disease. Background technique [0002] The retaining wall is one of the most commonly used retaining structures in geotechnical engineering. The structural forms of the retaining wall mainly include gravity type, buttress type, reinforced type, anchor type, pile plate type, etc. In the construction of municipal and water conservancy projects, gravity retaining walls are the most widely used. Traditional gravity retaining walls are generally built by stacking stones and pouring concrete on site, which requires a large amount of masonry, a ...

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Problems solved by technology

For example, invention patents ZL201720712366.0 and ZL201721376162.0 disclose a prefabricated retaining wall respectively. The unit can be filled with soil and gravel materials, which can effectively reduce the masonry consumption of traditional prefabricated retaining walls and reduce the project cost. However, the on-site assembly unit division of this type of structure is too small, there are many components, and the assembly process requires high requirements. The overall self-stability of the retaining wall Sex protection is difficult

The invention patents with application numbers 201610479129.4, 201810570406.1 and 201810167122.8 are respectively publishing a prefabricated concrete box-type gravity retaining wall. Structures are different), and the prefabricated square box units are directly built in layers during on-site construction, and earth and stone are filled into the empty boxes, which is convenient for construction. Composition, according to the distribution characteristics of the earth pressure of the retaining wall, these retaining walls should not be too high. At the same time, the overall stability of the retaining wall has extremely high requirements on the assembly process, and the risk of overall overturning is greater when the height of the retaining wall is large.

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