Permanent-and-temporary combined retaining wall structure in urban water conservancy project and construction method of structure

Abstract

The invention discloses a permanent-and-temporary combined retaining wall structure in an urban water conservancy project and a construction method of the structure. The retaining wall structure comprises reinforced concrete cast-in-place piles, concrete mixing piles, reinforced concrete bearing platforms, a gravity type (semi-gravity type) retaining wall, reinforced concrete baffles or a reinforced concrete L-shaped retaining wall, wherein front-row reinforced concrete cast-in-place piles and rear-row reinforced concrete cast-in-place piles are arranged with the reinforced concrete cast-in-place piles, and the reinforced concrete bearing platforms are arranged at the tops of the reinforced concrete cast-in-place piles and combined with the front-row reinforced concrete cast-in-place pilesand the rear-row reinforced concrete cast-in-place piles to form a large rigid frame system double-row pile enclosure structure. According to the permanent-and-temporary combined retaining wall structure in the urban water conservancy project and the construction method of the structure, the excavation land occupation of the retaining wall can be effectively reduced, the comprehensive utilizationdegree is high, the structure can be directly connected with an existing building through the front-row and dense-row cast-in-place piles, the influence on the existing building is effectively reduced, the safety of the building is guaranteed, the double-row pile reinforced concrete bearing platforms can be used as platforms of a retaining wall dressed stone facing, construction is facilitated, the permanent retaining wall and a temporary enclosure structure are combined, and the engineering investment is saved.

Description

technical field [0001] The invention relates to a retaining wall structure and a construction method thereof, in particular to a permanently combined retaining wall structure and a construction method thereof in urban water conservancy projects connected with existing buildings. Background technique [0002] Retaining wall structures are often used in river courses, pump stations and sluice projects of urban water conservancy projects, and the following structural types are generally used: (1) gravity retaining wall; (2) semi-gravity retaining wall; (3) Cantilever retaining wall; (4) Buttress retaining wall; (5) Empty box retaining wall. In actual use, one or more types of retaining walls are selected according to factors such as the height of the retaining wall, the form of the foundation and the layout of the project. [0003] With the development of society and economy, the requirements for urban flood control and drainage are getting higher and higher, and many water co...

AI Technical Summary

Problems solved by technology

Due to the dense buildings around the project, the overall planning of the city or the limited scope of the land use red line, the traditional grading excavation occupies a large area, and it is inconvenient to construct when the surrounding site is cramped. , the enclosure structure only undertakes the function of temporary protection during construction. After the project is completed, it is generally dismantled or discarded. It does not double as a retaining wall structure, and the degree of comprehensive utilization is not high.

[0004] At the same time, the upstream and downstream of water conservancy projects often need to be connected with the existing river revetment or bridge structure. The traditional connection method often requires the demolition of more existing revetment structures. The revetment structure has a greater impact. If it is adjacent to bridges and other buildings, the construction of the connecting section will have a certain safety impact on the bridge structure.

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