Device for preventing pier from being eroded by water flow

Abstract

The invention relates to a device for preventing a pier from being eroded by water flow. The device comprises a vortex elimination board and a fixing ring. The root portion of the pier is sleeved withthe fixing ring. The fixing ring is fixed to the pier through a connecting piece on the flow-opposite face of the pier. The vortex elimination board is fixedly connected to the fixing ring, faces theupper stream of a river and is parallel to the water flow direction. The vortex elimination board and the bottom of the fixing ring are located above silt of a riverbed. The device for preventing thepier from being eroded by water flow uses the vortex elimination board for eliminating vortex system non-stationarity, weakening vortex system intensity and fundamentally preventing the pier from being eroded and destroyed and is simple in structure, convenient to install and low in cost.

Description

technical field [0001] The invention relates to bridge protection equipment, in particular to a device for preventing bridge pier from being eroded by water flow. Background technique [0002] Bridge piers are damaged by water erosion, which is very prominent in the world. According to statistics, 75% of the 383 bridge damage cases in the United States involve bridge pier damage; New Zealand’s Ministry of Science and Industrial Research spends about 50% of its total expenditure on bridge repair and maintenance. %, of which the cost of bridge pier erosion repairs accounts for 70%; and the root cause of bridge pier erosion damage is the unsteady erosion of the horseshoe-shaped vortex system at the root of the pier, which takes away sediment and pier structures; at present, my country has become the world's first bridge construction and In large countries, the problem of pier erosion damage is more serious, and the maintenance needs are more urgent. However, the existing pier mai...

AI Technical Summary

Problems solved by technology

[0002] Bridge piers are damaged by water erosion, which is very prominent in the world. According to statistics, 75% of the 383 bridge damage cases in the United States involve bridge pier damage; New Zealand’s Ministry of Science and Industrial Research spends about 50% of its total expenditure on bridge repair and maintenance. %, of which the cost of bridge pier erosion repairs accounts for 70%; and the root cause of bridge pier erosion damage is the unsteady erosion of the horseshoe-shaped vortex system at the root of the pier, which takes away sediment and pier structures; at present, my country has become the world's first bridge construction and In large countries, the problem of pier erosion damage is more serious, and the maintenance needs are more urgent. However, the existing pier maintenance at home and abroad is mainly carried out through preventive maintenance through pier reinforcement and other measures, which cannot fundamentally solve the problem of pier damage, and the cost is high. Short protection period

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