A protective structure for bridge abutments

Abstract

The invention discloses a protective structure for an abutment, and relates to the technical field of abutments. According to key points of the technical scheme, the protective structure includes a pile hole formed in a soil layer, a waterproof device is arranged in the pile hole, and the waterproof device includes a concrete layer laid in the pile hole, an acid-proof steel plate installed at thebottom of the concrete layer, a plurality of groups of fixing mechanisms which are installed on the acid-proof steel plate and used for fixing the acid-proof steel plate to the soil layer, and a waterproof assembly arranged around the acid-proof steel plate; and the waterproof assembly includes inserting grooves formed around the acid-proof steel plate and an arc-shaped ring which is inserted intothe inserting grooves and connected to the inner circumferential surface of the concrete layer in an abutting mode, the arc-shaped ring is arranged protruding the top of the soil layer, the arc-shaped ring is composed of an acid-proof steel material, and a first sealing ring is arranged between the inner circumferential surface of the arc-shaped ring and the outer circumferential surface of the acid-proof steel plate. According to the protective structure for the abutment, the possibility of water in the soil layer being contact with the abutment can be decreased, and thus the service life ofthe abutment can be prolonged.

Description

technical field [0001] The invention relates to the technical field of abutments, more specifically, it relates to a protective structure for abutments. Background technique [0002] Bridge abutment, located at both ends of the bridge, supports the superstructure of the bridge and connects with the embankment. In addition to transferring the load of the bridge superstructure to the foundation, its function also has the functions of resisting the filling pressure behind the abutment, stabilizing the subgrade at the bridge head, and making the bridge head line and the bridge line connect reliably and smoothly. The abutment is generally a stone or plain concrete structure, and the light abutment is a reinforced concrete structure. The supporting structure between the bridge and the embankment at the end of the bank or at the end of the bridge hole. It plays the role of supporting the superstructure and connecting the roads on both banks while blocking the fill behind the abut...

AI Technical Summary

Problems solved by technology

[0003] However, the lower end of the abutment is generally buried in the soil layer. When the soil layer contains salt water or some acidic substances, the lower end of the abutment may be eroded, thereby reducing the strength of the abutment.

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