Ribbed rockfill retaining wall structure with compound foundation and construction method thereof

Abstract

The invention discloses a ribbed rockfill retaining wall structure with a compound foundation and a construction method thereof. The ribbed rockfill retaining wall structure comprises the compound foundation (1), a rockfill retaining wall (2), a geogrid (3), a reverse filtering layer (4) and a filling body (5), wherein the compound foundation (1) is located underground and composed of a pluralityof vibroflotation crushed stone piles (1.1); the rockfill retaining wall (2) is located above the compound foundation (1); the filling body (5) is arranged on the inner side of the rockfill retainingwall (2); the geogrid (3) is arranged on the lower portion of the filling body (5); and the reverse filtering layer (4) is arranged between the rockfill retaining wall (2) and the geogrid (3). By means of the ribbed rockfill retaining wall structure with the compound foundation and the construction method, the defect that a traditional retaining wall structure cannot meet the stability requirementof the retaining wall structure and a filling body behind a retaining wall in the prior art is overcome, and the ribbed rockfill retaining wall structure with the compound foundation and the construction method have the advantages of easy and convenient construction, high construction speed and low wall manufacturing cost.

Description

technical field [0001] The invention relates to the technical fields of water conservancy, highway and soil and water conservation, and more specifically relates to a composite foundation reinforced rockfill body retaining wall structure and a construction method. Background technique [0002] During the filling process of revetment embankment, highway embankment, spoil yard and other projects, retaining walls are usually used to resist the filling pressure. 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 retaining wall structure cannot meet its own requirements. In order to meet the stability requirements of the filling body behind the wall, other methods must be combined with the retaining wall to jointly bear the filling pressure behind the wall. [0003] Traditional reta...

AI Technical Summary

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 retaining wall structure cannot meet its own requirements. In order to meet the stability requirements of the filling body behind the wall, other methods must be combined with the retaining wall to jointly bear the filling pressure behind the wall.

[0003] Traditional retaining wall materials are concrete or masonry masonry. Concrete retaining walls involve concrete production, transportation, and pouring, with many construction equipment and complicated procedures; masonry masonry walls require manual masonry, which consumes a lot of manpower and slow construction speed

Chinese patent CN104674841B uses machinery to place block stones to quickly form a retaining wall. Although the degree of mechanized construction of the retaining wall has been improved and the construction speed of the retaining wall has been accelerated, it faces the same problem as the concrete retaining wall and the masonry masonry retaining wall: 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

Although the Chinese patents CN205116214U, CN104389320B, and CN103321243B use cast-in-situ piles, steel pipe micro-piles, screw piles, rotary spray piles, and mixing piles to reinforce the foundation of the retaining wall, the above-mentioned piles are all plain concrete or reinforced concrete structures, and the construction process is complicated. , long construction period and high project cost

[0004] When the height of the filling body behind the retaining wall is high, only relying on the retaining wall itself to resist the filling pressure will make the masonry structure bulky. At the same time, the requirements for the bearing capacity of the foundation are high, and the construction cost is also high

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