KR20130090070A

KR20130090070A - Reinforcing structure of hydraulic structures

Info

Publication number: KR20130090070A
Application number: KR1020120011127A
Authority: KR
Inventors: 장민수
Original assignee: 주식회사신화기공
Priority date: 2012-02-03
Filing date: 2012-02-03
Publication date: 2013-08-13

Abstract

The present invention can improve the drainage during flooding by reinforcing the piers of the repair structure, such as the bridge piers of the existing bridge to convert the flow of water into laminar flow to increase the flow rate of water per unit time, and also the piers of repair structures such as bridges It is to provide a reinforcement structure of a repair structure that can reduce the maintenance cost by eliminating the root crushing phenomenon. To this end, the present invention in the structure for reinforcing the pier of the quadrilateral or cylindrical structure is installed for repair structures such as bridges of the river, the width gradually narrower toward the front end of the pier on the upstream side toward the flow of water Both ends of the metal plate member is fixed by reinforcing bolts to the pier so as to have a streamlined ship shape.

Description

Reinforcing structure of hydraulic structures

The present invention relates to reinforcing structures of piers used to support hydraulic structures, for example bridges constructed across rivers, or to install water gates.

In general, bridges of bridges that are installed across rivers, rivers, and the sea, or bridges of various repair structures such as inlet columns and water gates of pumping stations or drainage stations, are generally formed in the shape of wells or square columns, especially old repair structures. For example, the pillars of many hydraulic structures (so-called Saemaul bridges) in rural areas, which were constructed through the Saemaul Undong during the 1970s and 1980s, were constructed in nearly quadrangular columns to reduce budget.

Since the lower part of the pier used for the installation of the bridge and the hydrology is submerged, water is gradually eroded by water flowing over time, or the surrounding ground is scoured, causing the column to collapse. Each pillar has a problem such as causing resistance to the flow of water and causing flooding, and despite the urgent need for reconstruction, there is a problem that entails a huge budget and is neglected.

Figure 3 is a real site picture of the installation of the four-section cross-section piers in the installation of the repair structure, when the water flows at the front of the piers (pillar) when the flow of water flows divided into both sides of the column (pier) flow As you can see, you're seeing a heavy vortex (see white foam around the column). This resistance caused by the pillars has a problem such as adversely affecting the flow rate and causing the flooding in the rainy season due to the vortex formation, which reduces the water drainage capacity per unit time in the hydrologic gate.

In addition, as shown in FIG. 4, the water hitting the column (pier, 1) triggers the vortex flow (see the whirlwind-shaped arrow) toward the bottom, causing the crushing phenomenon to eat the bottom surface 7 of the river. In extreme cases, the roots of the pillars are exposed to water, weakening their bearing capacity and endangering the safety of the structure.

Accordingly, the present invention has been proposed in view of the above, and its object is to reinforce the bridge piers of bridges or repair structures installed in the past, convert water flow into laminar flow, and increase the flow rate of water per unit time in flooding. It is to provide a reinforcement structure of the repair structure to improve the drainage.

It is another object of the present invention to provide a reinforcement structure of a piers that can reduce maintenance costs by eliminating the scour phenomenon in which the piers roots of bridges or repair structures are exposed.

In order to achieve the above object, the present invention is a reinforcement structure of a pentagonal or cylindrical structure piers installed for the bridge or repair structure of the river, protruding forward toward the front portion of the piers on the upstream side toward the flow of water It has a shape of a streamlined boat having a shape but gradually narrower toward the tip, and both free ends of the metal plate member formed in the upper and lower heights to cover more than the height of the water at the bottom of the river by the fixing means to the pier wall Fixed and reinforced.

According to an embodiment of the present invention, the metal plate member having the streamlined ship shape is installed on the rear side of the piers.

In addition, according to a preferred embodiment of the present invention is characterized in that the inner space formed by the metal plate member having a streamlined ship shape is filled with sand or gravel filler.

And it is characterized by sealing the upper opening or lower opening or the upper and lower openings of the metal plate member having the streamlined ship shape with a cover plate.

In addition, according to the present invention is characterized in that the metallic collar member spread out horizontally is installed near the bottom of the river under the surface of the pier and the metal plate member.

The present invention is such that the flow of water by the reinforcement of the metal plate member made of stainless steel or the like in the four-side cross-section or circular cross-section pier installed in the repair structure in a streamlined shape, the sharp end of the metal plate member By splitting to the left and right by the two sides and flowing smoothly from the streamline surface, the flow flows backwards, which reduces the occurrence of vortices and increases the amount of water flow per unit time, reducing the risk of flooding during heavy rains (reducing the crushing phenomenon), and collar There is an effect that the member further prevents the scour phenomenon to weaken the root portion of the piers.

1 is a schematic cross-sectional view of a water gate showing an embodiment of a repair structure reinforcement structure according to the present invention,
Figure 2 is a schematic view showing a perspective view of the repair structure reinforcement structure according to the present invention.
Figure 3 is a real site picture of the piers of the four-sided cross-sectional shape is installed to install the repair structure.
4 is a view showing that the water hitting the column (pier) triggers the coil-shaped vortex flow toward the lower side to cause the crushing phenomenon to eat the bottom surface of the river.

In the following detailed description, specific embodiments in which the invention may be practiced are described in detail with reference to the accompanying drawings, which are shown for purposes of illustration.

These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are not necessarily mutually exclusive, even if different. By way of example, certain aspects, structures, or features described herein in connection with one embodiment may be practiced by other embodiments without departing from the spirit and scope of the invention.

It is also to be understood that the position or arrangement of individual elements within each disclosed embodiment may be modified without departing from the spirit and scope of the invention. Accordingly, the following detailed description is not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims and the equivalents of the appended claims so as to be properly interpreted.

1 is a schematic cross-sectional view of the water gate showing an embodiment of the repair structure reinforcement structure according to the present invention, Figure 2 is a schematic view showing a perspective view of the repair structure reinforcement structure according to the present invention.

In the drawing, reference numeral 1 denotes a pier (or pillar) constructed to install a pillar of a repair structure, for example, a sluice 2, hereinafter referred to as a pier, a pillar erected on a lower side to support a bridge installed to cross a river. It is used to include all pillars (including inlet columns, such as pump stations and drainage stations) installed on the pillars and rivers, rivers, and tides, etc., which affect the water flow.

Pier (1) described in the present invention as a repair structure installed in existing rivers, etc., means that it is installed to have a quadrilateral cross-sectional shape and a circular cross-sectional shape, in particular quadrilateral cross-sectional shape cast in reinforced concrete, The reinforcing structure 3 of the repair structure according to the invention becomes a particularly effective reinforcing means for improving the structure of the pier 1 having a quadrilateral cross-sectional shape installed on an existing bed.

The reinforcing structure 3 of the repair structure is formed by a metal plate member 4 made of stainless steel having excellent corrosion resistance that does not rust in contact with water, and the metal plate member 4 has a streamlined shape with a sharp tip in plan view. It is formed to have the shape of a ship of both sides of the free end of the both sides of the pier (1) to the front both sides of the wall (1a) and fastening the fixing means, for example anchor bolts (5) to fasten, the metal plate member ( The upper end of 4) protrudes above the water surface 6 and the lower end is constructed in the form of being in contact with the ground (7, the bottom of the river) under the water surface 6 or buried under the ground (7).

The metal plate member 4 is press-processed in the form of a streamlined boat so as to cover at least the bottom of the river 7 to the surface of the water in the pier 1 between the pier 1 and the sharply protruding tip 4b. An empty space 8 having a triangular shape is formed, and the space 8 is filled with a filler 9 such as sand or gravel, and a metal cover plate (not shown) to prevent the filler from flowing over the upper end 4a of the opening. The cover plate can also be formed at the lower end and between the opposite side walls which are bent in a streamline with the filler material 9 or instead of filling the filler material 9 in the space 8. Hydraulic jacks can be optionally installed inside to support the

The metal plate member 4 may be installed in the rear of the pier 1 as needed, and may be installed at every pier or selectively installed according to the site situation.

And the collar member 10, which is a plate-like member that extends horizontally near the ground at the lower end of the pier 1 is fixedly mounted, so that the water hitting the pier 1 generates turbulence downward to crush the ground 7 It is blocking the thing.

On the other hand, in attaching both ends of the metal plate member 4 to the wall of the piers 1, although not shown, the metal plate member is dug in the up and down direction on the side wall and inserted into the groove to be in close contact with the inner wall surface. After bending both ends of the 4) in the c-shaped and fitted into the groove, it may be configured to increase the bearing capacity of the structure by the concave-convex coupling structure at the same time without the bolt head is protruding from the wall by fastening the bolt as a fixing means.

According to such a reinforcement structure 3 of the repair structure of the present invention, when the flow of water flowing toward the front of the pier 1 hits the pointed tip 4b (actually rounding), it splits to both sides. While being guided by the smooth inclined curved surfaces on both sides of the metal plate member 4, the flow to the rear of the pier 1 is induced (see the arrow flow in FIG. 1), where no turbulent or vortex is generated and a quiet laminar flow is induced. Will be.

Also, as shown in Fig. 2, the flow of water that strikes the metal plate member 4 and causes the whirlwind (Vortex) toward the bottom (but the Vortex phenomenon is already greatly reduced by the installation structure of the present invention) is the collar member 10. Blocking by) affecting the ground (7) side is blocked on the way, it is possible to prevent the crushing phenomenon that exposes the root of the piers (1) to eat the ground.

Accordingly, the significance of the present invention is that the pier (1) using a metal plate member is not simply dismantled and rebuilt by dismantling the pier (1) of a large number of existing repair structures having a quadrangular cross section, which has been constructed in many rivers in the country. In addition, it is possible to reinforce the pier at a minimum cost by improving the flow of water and preventing the scour phenomenon by simply installing it, and putting the filler 9 in the space 8 formed by the metal plate member 4. Since the strength is reinforced by filling, and the filler 9 is kept trapped in the metal plate, it is not necessary to mix and use a separate caking additive such as cement, so that the construction cost is low.

Embodiment of the reinforcing structure of the repair structure of the present invention described above is merely exemplary, and those skilled in the art to which the present invention pertains that various modifications and equivalent other embodiments are possible. You can see well. Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

1: pier
1a: pier sidewall
2: sluice
3: reinforcement structure of repair structure
4: metal plate member
4a: top
4b: tip
5: anchor bolt
6: sleep
7: ground (river floor)
8: space
9: filler
10: collar member

Claims

In a structure for reinforcing a pier of a quadrilateral or cylindrical structure installed for a repair structure including a bridge pier of a river or an inlet column of a water and drainage station, the front portion of the pier on the upstream side toward the flow of water is It has a shape of a streamlined boat which protrudes toward the tip but becomes narrower gradually toward the tip, and mounts the free ends of both sides of the metal plate member having upper and lower heights formed to cover at least the height of the water at the bottom of the river to the pier wall. Reinforcement structure of a repair structure, characterized in that fixed by the fixing means to be reinforced.

2. The reinforcement structure of a repair structure according to claim 1, wherein the metal plate member having the shape of the streamlined ship is also installed at the rear side of the piers.

The reinforcement structure of a repair structure according to claim 1 or 2, wherein the inner space formed by the metal plate member having the shape of the streamlined ship is filled with sand or gravel filler.

4. The reinforcement structure of a repair structure according to claim 3, wherein the upper opening, the lower opening, or the upper and lower openings of the metal plate member having the streamlined ship shape are sealed with a cover plate.

The reinforcement structure of a repair structure according to claim 1 or 2, wherein a horizontal metallic member is installed horizontally near the bottom of the river under the water surface of the pier and the metal plate member.