Slope reinforcing retaining wall and construction method thereof

Abstract

The invention discloses a slope reinforcing retaining wall and a construction method thereof. The retaining wall comprises a concrete cushion and a plurality of unit structural layers formed by a backfill soil layer entraining a concrete soil layer above the concrete cushion. The inclination angle of each unit structural layer is consistent with the grade of the slope. A plurality of hollow steelpipes vertically pressed unto a soil body downward are arranged on the concrete cushion. The hollow steel pipes of same inclination angle are arranged in the unit structural layers. Two ends of the hollow steel pipes are restrained and fixed by concrete soil layers. A base structure of the retaining wall is relatively high in bearing capacity and unlikely to soften and permeate. The unit structural layers are stable structural bodies and have the characteristics of isolating water and being unlikely to soften. The inclination angle of the retaining wall can be arranged relatively steeply, so that the cost of filling engineering is saved. A soil material of the retaining wall is fully taken from an excavated natural soil body, so that the engineering cost can be saved. The slope reinforcingretaining wall is particularly suitable for south region with limited sites for reinforced design of the slope and high perennial rainfall frequency.

Description

technical field [0001] The invention belongs to the field of geotechnical engineering, in particular to a slope reinforced retaining wall and a construction method thereof. Background technique [0002] In the slope treatment process, excavated soil materials and reinforcement materials are often used to combine them through different design schemes and construction methods to form a flexible reinforced soil retaining wall. This method is economical Cost, simple construction, fast construction speed and other advantages. At present, the most reinforced material in reinforced soil is mainly geogrid among synthetic reinforced materials. [0003] Due to the small section width of the conventional rigid gravity retaining wall, the anti-sliding friction resistance generated at the bottom is not enough, resulting in the overall sliding or toppling failure of the retaining wall, which makes the reinforced slope invalid. In addition, the cost is expensive, and there are no requirem...

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Problems solved by technology

[0003] Due to the small section width of the conventional rigid gravity retaining wall, the anti-sliding friction resistance generated at the bottom is not enough, resulting in the overall sliding or toppling failure of the retaining wall, which makes the reinforced slope invalid. In addition, the cost is expensive, and there are no requirements for the grade of the slope High engineering has caused economic waste; flexible gravity retaining walls such as conventional geogrid reinforcement often cause overall instability and damage to the foundation at the bottom due to water softening. The section width of the wall is relatively large, so it occupies a relatively wide site, and the inclination angle of the retaining wall is relatively slow, so that the surface of the retaining wall is subject to a large area of ​​rainwater erosion, which is prone to shallow collapse and damage of the retaining wall. The design site for slope reinforcement is limited and the perennial rainfall frequency The big southern region is obviously not suitable

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