Composite foundation reinforced cantilever retaining wall structure and construction method thereof

Abstract

The invention discloses a composite foundation reinforced cantilever retaining wall structure and a construction method of the composite foundation reinforced cantilever retaining wall structure. The composite foundation reinforced cantilever retaining wall structure comprises a composite foundation (1), a cantilever retaining wall (2), a geogrid (3) and a filling body (4). The composite foundation (1) is located underground and composed of multiple vibro-replacement crushed stone piles (1.1). The cantilever retaining wall (2) is located above the composite foundation (1). The inner side of the cantilever retaining wall (2) is provided with the filling body (4). The geogrid (3) is transversely arranged on the lower portion of the filling body (4). The composite foundation reinforced cantilever retaining wall structure overcomes the defects that in the prior art, a traditional cantilever retaining wall structure cannot meet the stability requirements of the cantilever retaining wall structure and the filling body behind the wall and has the advantages that the construction technology is simple, convenient and rapid.

Description

Technical field [0001] The invention relates to the technical fields of water conservancy, highways and civil engineering, and more specifically to a composite foundation reinforced cantilever retaining wall structure and a construction method. Background technique [0002] In the filling process of the revetment body, highway subgrade, spoil yard and other projects, cantilever retaining walls are usually used to resist the pressure of the filling. When the above construction is located in coastal areas, rivers and lakes beaches, soft soil areas, and deep overburden areas, the stratum structure is mostly composed of silt, silt, silty clay, and silty soil. The traditional cantilever retaining wall structure cannot To meet the stability requirements of itself and the filling body behind the wall, other methods must be used in combination with the retaining wall to jointly bear the filling pressure behind the wall. [0003] When encountering the above-mentioned poor geological condit...

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Problems solved by technology

When the above-mentioned engineering construction is located in coastal areas, river and lake banks, soft soil areas, and deep overburden areas, the stratum structure is mostly composed of silty sand, silt, silty clay, and silty soil. The traditional cantilever retaining wall structure cannot To meet the stability requirements of itself and the filling body behind the wall, it must be combined with the retaining wall in other ways to jointly bear the filling pressure behind the wall

[0003] When encountering the above-mentioned poor geological conditions, due to the low bearing capacity of the foundation, the retaining wall and the filling body behind the wall will experience large deformation and even failure. layer foundation use

Chinese patents CN103321243B, CN103410167B, and CN104389320B respectively use steel pipe micropiles, cast-in-situ piles, and pipe piles to reinforce the foundation of the retaining wall, but the above-mentioned piles are all plain concrete or reinforced concrete structures, and the construction process is complicated, and the construction period is long. high

[0004] The applicable height of the cantilever retaining wall is generally less than 6 meters. When the wall height continues to increase, only relying on the retaining wall itself to resist the filling pressure will cause a sharp increase in the amount of steel and concrete. Walls are less economical

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