Turbulent flow passive control local anti-scouring bearing structure pier

Abstract

The invention relates to the technical field of scouring resistance of a pier body in turbulent flow areas such as a pier anti-scouring area and a sluice pier anti-scouring area, in particular to a turbulent flow passive control local anti-scouring bearing structure pier. The turbulent flow passive control local anti-scouring bearing structure pier comprises a rectangular column type pier body, a fish body type pier body, a metal fastening device, a hemispherical anti-scouring device, a hole-shaped curved plate, a W-shaped flow guide groove and an oval arc hole-shaped flow guide plate, wherein metal pieces of fastening bolts need to be prefabricated for the pier body; the hemispherical anti-scouring device and the pier body are in fastened connection by metal bolts; the hole-shaped curved plate and the hemispherical anti-scouring device are in fastened connection by metal bolts; and the oval arc hole-shaped flow guide plate and the pier body are in fastened connection by metal bolts. According to the invention, the turbulent flow passive control anti-scouring bearing structure pier provided with the hemispherical anti-scouring device and the hole-shaped curved plate can adapt to water flow environments such as waves and tides with intense changes, and the hole-shaped curved plate can intercept part of garbage, so that direct collision and contact between the garbage and the front face of the pier body are reduced.

Description

technical field [0001] The invention relates to the technical field of anti-scouring pier bodies in turbulent flow areas such as bridge pier anti-scouring and sluice pier anti-scouring, in particular to a turbulent flow passive control local anti-scouring load-bearing structural pier. Background technique [0002] Bridge piers are one of the important components of various types of bridges, and are the key load-bearing structures to ensure the safety and stability of bridges. The sluice pier is the key load-bearing structure to ensure the stability of the sluice chamber and the reliable operation of the sluice gate. At present, the materials of building bridge piers, sluice gate piers and other piers are mainly reinforced concrete. With the progress and development of society, pier bodies such as bridge piers and sluice gate piers need to be constructed and operated under more complex water flow conditions, but long-term operation and the influence of various inevitable nat...

AI Technical Summary

Problems solved by technology

When the water flow hits the pier body, dangerous water flow patterns such as tail vortex, side vortex, and descending scour flow are likely to appear, making the pier body easy to be scoured by the water flow to expose the steel bars, and scour pits appear on the riverbed around the pier body, which will eventually cause the pier body to tilt easily. position, causing bridges, sluices and other projects to have major dangerous accidents such as overall tilting, cracking, and collapse, resulting in heavy losses of people's lives and property

In addition to the threat of bad water flow patterns such as turbulent flow and eddy current, floating ice and icicles that are prone to appear in winter waters in the north will impact and collide with the pier body, destroying the concrete protective layer, greatly reducing the service life of the pier body, and repairing the concrete under water The pier body is very inconvenient, and the construction cost and technical requirements for design and construction are relatively high

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