Ecological protection construction method of stepped 3D stiffened bridge abutment conical slope

Abstract

The invention relates to an ecological protection construction method of a stepped 3D stiffened bridge abutment conical slope. The construction method mainly comprises the construction steps of construction of a foundation A, construction of a drainage blanket, construction of a first-storey stepped component, construction of first-storey backfill soil, protection construction of the conical slopebelow the maximum water level, and protection construction of the conical slope above the maximum water level. Through the construction method, after completion of the foundation A and the drainage blanket, the first-storey stepped component and a corner component are mounted on the foundation; the first-storey backfill soil is laid, and the backwater ends of geogrids are reversely enveloped; referring to the above steps, protection construction is conducted on the portion, below the maximum water level, of the conical slope; further layered construction is conducted on the portion, above themaximum water level, of the conical slope, the two ends of each geogrid are reversely enveloped, and an isolation zone is isolated at the end facing water. The ecological protection construction method of the conical slope has the advantages that construction is fast and convenient, the stability is high, the waterproof performance is good, the ecological effect is high, the occupied area is small, the comprehensive benefits are prominent, and the defects existing in signal ecological protection and engineering protection are overcome.

Description

technical field [0001] The invention relates to a construction method for step-type three-dimensional reinforced abutment cone slope ecological protection, which belongs to the field of bridge engineering and is suitable for the construction of abutment cone slope protection, especially for the abutment cone slope protection construction of bridges over water. Background technique [0002] Due to the special position and structural form of the conical slope in bridge engineering, the protective effect of the soil not only affects its own stability, but also affects the aesthetics of the engineering route. Common abutment cone slope diseases such as cone collapse, slope cracks, partial shedding, etc. The appearance of this local disease, when a large amount of rainwater enters the cone, often leads to the destruction of the entire cone, so that the abutment body and ear wall are exposed. When the subgrade is impacted by vehicles, there is no cone slope to balance Part of the...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to: aim at the problems of poor soil stability, poor protection effect, prone to collapse, slope slope, crack, and partial shedding in single vegetation protection, as well as the defects of high construction cost and poor ecological effect in single project protection , a construction method for the ecological protection of the stepped three-dimensional reinforced abutment conical slope is proposed. The protection system is convenient in construction, high in stability, good in water resistance, strong in ecological effect, and small in floor space.

Images