KR101967578B1 - Defensive equipment for pier foundation of scour suppress type - Google Patents

Abstract

The present invention relates to a pier foundation protection apparatus for scouring suppression and, more specifically, to a pier foundation protection apparatus for scouring suppression which can secure bridge safety by suppressing scouring around a pier, reduce a water current pressure reaching the pier, and prevent a collision of a riverbed material. The pier foundation protection apparatus for scouring suppression comprises: a divide bow to change a water current pattern while being arranged on one side of a pier foundation opposing a water current direction to prevent a water current pressure from reaching the pier foundation, and prevent a riverbed material floating along a water current from colliding with the pier foundation; a surrounding fence allowing the divide bow to be connected and installed on one side thereof, and surrounding the exterior of the pier foundation to protect and reinforce the pier foundation; and a link device to connect the divide bow and the surrounding fence to each other, and support an arranged state of the divide bow. The divide bow, the surrounding fence, and the link device are manufactured by recycling waste plastic.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pier-

More particularly, the present invention relates to a bridge safety device for securing bridge safety by suppressing the scour phenomenon around a bridge pier, a reduction in water flow resistance (water resistance) on the bridge pier, The present invention relates to a pillar-type basic pillar protection device for preventing collision.

Scouring refers to the phenomenon of slicing the interface due to the local concentration of water currents (water flow, water flow). Such scouring is caused by erosion by flowing water, river bed excavation in the waterway, And the transport action of the material eroded from the channel section of the water channel (water channel section).

These factors have a great influence on the changes in the short and long-term scour depths of rivers and their tributaries. In other words, the river in the natural state maintains the equilibrium state in the long term because the inflow amount of the soil and the discharge amount are almost the same, but when the bridge is installed in the river, the hydraulic phenomenon changes and local scouring occurs around the pier.

Thus, the scour around the piers is difficult to predict because of the dynamic interaction of the moving fluid and the uneven distribution of the bed particles and the shape of the piers.

In the case of domestic rivers, unlike other countries such as Europe and America, seasonal flow velocity deviations (flow rate deviation phenomenon) and bed material (precipitated mixed soil) are considerably small, The existing bridges often remain unprotected against the cedar, which may cause human and material loss due to collapse.

In order to protect the pier foundation, which is the lower structure of the pier with such a collapse, from the scour, there are a method of increasing the resistance of the bed material to the scour and a method of descending the bed material and a descending and horseshoe vortex The first approach is to lay stones, tetrapods, and cable blocks on the perimeter of the piers. The second approach is to use the piers at the piers upstream of the pier. A protection device is installed or an upper plate of a prevention plate or a footing attached to the front of a pier is extended to the upstream side or a circular ring is attached to the bridge at the bottom or near the bottom.

In this connection, it is proposed that a scraping prevention base for protecting an underwater structure is installed through a Korean Utility Model No. 20-0338421 to prevent scouring of a bridge pier and to secure the safety of a structure (bridge) A structure for protecting the structure used for the anti-scouring has been disclosed.

FIG. 1 is a state diagram showing an embodiment of a scraping prevention frame for protecting structures using a polyethylene frame and a tension rod according to the prior art. The conventional structure for protecting a structure using a polyethylene frame and a tension rod, An anti-slip stand 900 is installed on the outer surface of the pier foundation 800 in contact with the underwater floor 700. The anti-slip stand 900 comprises a polyethylene frame 910 and an underwater concrete layer 920, The outer surface of the pier foundation 800 is protected and the scour is prevented according to the formation of the underwater concrete layer 920 in which the concrete is laid inside the frame 910.

However, the conventional anti-scouring stand 900 for protecting structures using the polyethylene frame and the tension rods is merely a structure that surrounds the pier foundation 800, and suppresses the scour phenomenon occurring around the pier (And methods) are not available anywhere.

In addition, with the reduction of the water flow pressure on the pier foundation 800, it is not possible to solve the collision problem of the pier foundation 800 of the bed material floating along the water stream, Abrasion, denting, etc.) have not yet been solved.

As a result, the safety of the bridge is ensured through the protection of the scour phenomenon around the bridge pier, as well as the bridge pier foundation, which is the substructure of the bridge pier, while simplifying the construction of the bridge for easy installation and installation. The development of a pier foundation protection system is urgent.

(Document 1) Utility Model No. 20-0338421 registered in the Republic of Korea (Registration date: 2004. 01. 05.) (Document 2) Utility Model No. 20-0227269 registered in Republic of Korea (Registered Date: Apr. 02, 2001) (Document 3) Korean Patent No. 10-0350721 (Registered Date: Aug. 17, 2002)

An object of the present invention is to solve the above problems, and an object of the present invention is to provide a divide bow for changing a water flow pattern in a state where it is disposed on one side of a pier foundation that opposes a water flow direction The present invention provides a pillar-type bridge pillar protection device capable of restraining the phenomenon, reducing the water flow pressure on the pier foundation, and blocking the bed material collision with the bridge pier and bridge pier foundation.

Another object of the present invention is to provide a surround fence provided around a pier foundation so that the stability of the bridge can be sufficiently secured through maintenance and reinforcement of the pier foundation damaged area as well as protection The present invention provides a base protecting apparatus for a pillar-type bridge pier.

It is still another object of the present invention to provide a method of manufacturing a waterproofing structure capable of simultaneously reducing the manufacturing cost of a device by recycling resources by fabricating a divide bow and a surround fence, Thereby providing a pier bridge pillar foundation protection device.

In order to achieve the above-mentioned object, the present invention is characterized in that, in a state in which the water flow pattern is disposed on one side of the bridge pillar base opposite to the water flow direction so that the water flow pressure does not reach the bridge pier foundation, Divide bow to avoid collision; A surround fence in which the divide bow is installed on one side and surrounds and protects and reinforces the outside of the pier foundation; And a link device interconnecting the divide bow and the surround fence to support and support the arrangement state of the divide bow and to exhibit shock absorbing buffering action transmitted to the divide bow, Surround fence and link device are characterized by being made of recycled waste plastics.

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The divide bow is disposed on one side of a pier foundation that opposes the water flow direction and has a "> "type structure suitable for dispersion of water flow patterns on both sides of the pier foundation, The shaft portion is protruded by a predetermined length from a predetermined portion of the back surface facing the pier foundation, and the first belt strip is protruded so as to exhibit the stiffness that resists the water flow pressure by forming a grid pattern in the longitudinal direction on the back surface.

In addition, the surround fence includes a plurality of reinforcing panels disposed in close contact with each other on the entire outer surface of the pier foundation, and a plurality of binding clips for joint joining between the reinforcing panels, And a second reinforcing band for increasing the rigidity of the panel is formed on the inner side surface of the flange inner panel by a grid pattern intersecting in the longitudinal and lateral directions.

The link device may include a cylindrical advancing / retreating cylinder having a buffering function that is pushed rearward corresponding to an external force in a state of being assembled to a connection shaft portion protruding from the inner side of the divide bow, and a plurality of reinforcement panels And a rod-like support rod which is assembled to the connecting buttocks protruded from the outer surface of the reinforcing panels disposed on one side facing the divide bow and guides the back-and-forth movement of the advance and retreat cylinder in a state where the projecting end is inserted into the back- And a coil-shaped resilient spring for pushing the support rod inside the advancing / retracting cylinder, wherein the front and rear ends of the advancing and retracting cylinder and the support rod are connected to the connection shaft portion and the connection buttock respectively by a "T" A projecting tip of the connecting shaft portion and a projecting tip of the connecting buttocks are provided on the coupling tee, The coupling grooves are formed to correspond to.

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In addition, at least one flow inducing vane is formed from the front ends of both sides of the divide bow to induce the swirling of the water flow to lower the flow velocity, thereby suppressing the flow pressure on the pier foundation.

The center edge protruding frontward of the divide bow has a curved structure in which the center portion is inwardly inward as viewed from the side when viewed from the side so as to prevent the water stream from crossing over the bridge pier foundation. .

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As can be clearly understood from the above description, the clevis-form pier foundation foundation protection device of the present invention is characterized in that the divide bow disposed on one side of the pier foundation allows the water flow pattern to pass on both sides of the pier foundation in a dispersed state, , The water pressure on the pier is reduced to a minimum, the impact of the pier foundation on the bed material is blocked, and the scour phenomenon around the pier is greatly suppressed.

Further, in addition to protecting the bridging element base by surrounding the bridging element with the surround fence, it is possible to secure the safety of the bridges by repairing and reinforcing the bridging element foundation by filling the supplementary member of the damaged portion.

At the same time, it is important for the company to generate profits and develop and revitalize the related industries by securing product competitiveness by achieving various effects such as reduction of manufacturing cost of equipment using waste plastic, effect of resource recycling, and creation of green environment based on this It is a very useful invention that can contribute.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a state diagram showing an embodiment of a scraping prevention member for protecting structures using a polyethylene frame and a tension rod according to the prior art.
FIG. 2 and FIG. 3 are a perspective view and a plan sectional view showing the constitutional relationship of the clevis-form pier foundation protection apparatus according to the present invention.
4 (a) and 4 (b) are perspective views showing a configuration of a divide bow in a clevis-form pier foundation basic protection apparatus according to the present invention.
5 is an exploded perspective view showing a coupling relation of a surround fence in a clevis-form pier foundation foundation protection device according to the present invention.
6A and 6B are use state diagrams showing an embodiment of a clevis-form pier foundation foundation protection device according to the present invention.
FIG. 7 and FIG. 8 are an exploded perspective view and an exemplary cross-sectional view showing other constitutional and operational examples of a clevis-form pier foundation foundation protection device according to the present invention;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.

In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

2 and 3 are perspective and sectional views showing the constitutional relationship of the clevis-form pier foundation basic protection apparatus according to the present invention. FIGS. 4 (a) and 4 (b) FIG. 5 is an exploded perspective view showing a coupling relation of surround fences in the clevis-form pier foundation basic protection apparatus according to the present invention, and FIGS. 6A and 6B are exploded perspective views showing the configuration of the divide bow in the apparatus according to the present invention. Fig. 6 is a use state diagram showing an embodiment of a three-legged pillion bridge basic protection device. Fig.

As shown in Figs. 2 and 3, the cleat-form pier foundation basic protection apparatus A according to the present invention has a structure in which the pier foundation basic protection apparatus A is disposed at a side of a pier foundation that opposes a direction of a water flow (Soil, gravel, and the like) that drift along the stream of water will collide against the pier foundation (p-1) by changing the water flow pattern (hereinafter referred to as "water flow pattern" A surround fence 2 surrounding the outside of the pier foundation and protecting and reinforcing the outer periphery of the pier foundation 1 and a surround fence 2 connected to one side of the divide bow 1, And a link device (3) for interconnecting the divider bobbin (2) and supporting and supporting the arrangement state of the divide bobbin (1).

Here, the divide bow (1) and the surround fence (2) are manufactured by recycling the waste plastics. Thus, it is possible to reduce the manufacturing cost of the apparatus and to create a green environment for resource recycling.

The divide bow 1 is a water flow pattern switching means for preventing pier foundation collision of bed material with a decrease in water flow pressure that falls below the foundation of a pier. As shown in Figs. 3 to 4 (b) Likewise, it is preferable to form a ">" -type structure so as to be suitable for dispersion of the water flow patterns on both sides of the pier foundation, while being disposed on one side of the pier foundation that faces the water flow direction.

In addition, the connection shaft portion 11 for assembling one side of the link device 3 is protruded by a predetermined length from a predetermined portion of the back surface (inner side) facing the bridge pier foundation, and a grid pattern is formed in the back surface And a first wale band 12 protruding to exert rigidity withstanding water flow pressure.

An assembly hole 11a through which the tip of one side of the supporting device of the link device 3 to be described later is inserted is formed from the tip end of the connecting shaft portion 11 and is connected to the assembling hole 11a, And a hollow portion 11b for entering and exiting the same hand tool is formed at the center.

At least one flow inducing vane (13) is provided from the front (outer side) of both end portions (outer side) to induce swirling of the water flow to lower the flow velocity and thereby suppress the water flow pressure on the foundation of the bridge. Respectively.

In addition, the center edge protruding forwardly forms a curved structure with the central portion inwardly facing the upper and lower portions when viewed from the side, so that the water flow is prevented from reaching the bridge pier over the pier foundation due to the impact resistance. And a clipper line (14) for preventing overhang.

The surround fence 2 is a base structure for surrounding the pier foundation and for reinforcing the damaged part and fixing the installation of the divide bow 1. As shown in Figure 5, And a plurality of binding clips 22 for bonding between the reinforcing panels 21 in close contact with each other.

The reinforcement panel 21 has a flange 211 which is bent to one side from the edge and which is required for joining between the panels, and a grid pattern intersecting with each other across the entire inner surface of the inner panel of the flange 211 A second reinforcing band 212 for increasing the rigidity of the panel is protruded.

From a predetermined portion (corresponding to the connecting shaft portion) of the reinforcing panels 21 disposed on one side facing the divide bow 1 among the plurality of reinforcing panels 21 surrounding the pier foundation, 3) a connecting butt 213 formed at the center of the fastening hole 213-1 for fastening and assembling the other side is protruded.

The link device 3 is a supporting means for connecting and supporting and supporting the divide bow 1 and the surround fence 2 and is constituted by the divide bow 1 and the surround fence 2, A support base 31 connecting the surround fence 2 so that the divide bow 1 connected to the surround fence 2 can withstand the flow pressure of water, a finishing cap 32 for finishing the assembly, And a plurality of fastening nuts 33 for fastening.

The support base 31 has a predetermined length considering a spacing distance between the divide bow 1 and the surround fence 2 and is formed to have a predetermined length in a range of the coupling holes 213-1 and the fixing nuts 33 It is preferable that the screw threads for threaded fastening are screw shafts formed on the outer circumferential surface.

The finishing cap 32 preferably has a cover type structure that covers the tip of the connection hips 213 to block exposure of the fastening portion of the supporting shaft 31.

The fixing nut 33 can be threadably fastened to the support shaft 31 so that the tightening state of the finishing cap 32 can be maintained and the fixing nut 33 can be screw- A hexagon nut suitable for holding the fastening state of one end of the support shaft 31 is not necessarily limited to the hexagon nut but may be any other type of machine element for component fastening, It is possible to do.

7 and 8 are an exploded perspective view and an exemplary cross-sectional view showing other constitutional and operational examples of the clevis-form pier foundation basic protection apparatus according to the present invention, in which the divide bow 1 and the surround fence 2 are connected (Water pressure increase, soil and gravel collision, etc.) exerted not only on the connection between the divide bow 1 and the surround fence 2 but also on the divide bow 1 by varying the configuration of the link device 3 ' (Buffer action, buffer action).

The link device 3 'for this purpose is a shock absorber that absorbs shocks in addition to the connection between the divide bow 1 and the surround fence 2. As shown in FIGS. 7 and 8, A cylindrical advancing / retreating cylinder 34 which is assembled to the distal end of the connecting shaft 11 of the divide bow 1 and has a buffering action that is pushed rearward in response to an external force; Assembled at the tip of the connecting buttocks 213 of the reinforcing panels 21 facing the divide bow 1 among the reinforcing panels 21 of the forward and backward cylinders 21, And a resilient spring 36 for pushing the support rod 35 in the advancing / retreating cylinder 34. The rod-like support rod 35 guides the retreating action of the support rods 35 and 34,

7, the front and rear ends of the advancing / retreating cylinder 34 and the support rod 35 are provided with a "T" -shaped coupling tee (Fig. 7 341) protruding from the connection shaft portion 11 and the protruding tip of the connection shaft portion 11 and the protruding tip of the connection butt portion 213 are provided with coupling grooves 111, 213-2 Is formed.

As shown in Fig. 8, the elastic spring 36 is a mechanical element that absorbs and accumulates energy by utilizing elastic deformation of an object to exhibit a buffering action. The elastic spring 36 is provided inside the advance / retreat cylinder 34 It is preferable that the coil spring is a coiled spring exhibiting a repulsive force, and it is preferable to use a plastic material instead of a metal material in order to prevent corrosion.

(P) is a pier which transmits the load of the upper structure to the ground, and (p-1) is a pier foundation that stabilizes the bridge as a lower structure of the bridge.

The operation of the clevis-form pier foundation basic protection apparatus A according to the present invention having the above-described structure will be described in detail as follows.

First, a bridge (bridge) is a civil engineering structure constructed to support a passage that crosses a river (and valley, lake, road, railroad, etc.) (P-1), which is the lower structure of the pier (p), transmits the force to the ground to stabilize the bridge. .

On the other hand, due to the installation of the bridge p, the flow pattern changes and local scouring occurs around the bridge p. In addition, the bridge foundation p- A part of them is worn out and collapsed due to collision of the bridge piers, which can be solved by constructing the three-pillow type bridge pier basic protection device A of the present invention.

Specifically, a plurality of reinforcing panels 21 constituting the surround fence 2 surrounds and protects and reinforces the outer surface of the pier foundation p-1. The reinforcing panel 21 is provided with flanges 211 are fastened together with the binding clip 22 to form a single structure.

In addition, a watertight member (primer, rubber pad, or the like) is applied or overlapped between the flanges 211 of the reinforcing panels 21 arranged in close contact with each other so as to surround the outer surface of the pier foundation p- (P-1) on the inside of the reinforcing panel 21 is filled with a replenishing member (cement mortar or the like) to repair or reinforce the portion that is depressed due to abrasion or dents.

Subsequently, the divide bow 1 is disposed on one side of the pier foundation p-1, which opposes the flow direction of the water flow, to suppress the scouring around the pier p, So that the bed material does not collide with the pier foundation (p-1).

More specifically, the divide bow 1 is disposed on one side of the pier foundation p-1, which is opposed to the flow direction of the water flow, and then the surround fence 2 and the divide bow 1 are connected to the link device 3 The tip of one end of the support shaft 31 of the link device 3 is fastened to the fastening hole 213-1 of the front end of the connecting buttocks 213 and then the fastening cap 32 is exposed And then the finishing cap 32 is brought into close contact with the fixing nut 33. [

The other end of the support shaft 31 is connected to the connection shaft portion 11 of the divide bow 1 so that the other end of the support shaft 31 is connected to the assembly hole 11a And the support shaft 31 is fixed so as not to be separated from the connection shaft portion 11 by using a plurality of fixing nuts 33. The connection between the divide bow 1 and the surround fence 2, The installation of the divide bow 1 can be completed.

Accordingly, as shown in Fig. 7, the scouring phenomenon can be suppressed by the change of the water flow pattern dispersed to both sides of the divide bow 1, and the water flow pressure at the pier foundation p-1 is insufficient And the bed material collision with the pier foundation p-1 can be blocked.

The water flow induced by the flow inducing vanes 13 formed on the front ends of both sides of the divide bow 1 is induced to lower the flow velocity, thereby minimizing the stress on the pier foundation p-1 .

In addition, as shown in Fig. 8, in the case of a sudden increase of the water flow pressure or a strong impact of the bed material through the adoption of another configured link device 3 'capable of shock absorption, It is possible to significantly reduce the stress on the pier foundation p-1 as the divide bow 1 is pushed backward to exhibit a buffering action.

In summary, according to the clevis-form pier foundation protecting apparatus A of the present invention, the pier foundation p-1 is formed by the divide bow 1 disposed at one side of the pier foundation p- (P-1) collision of the bed material (soil, gravel, etc.) with the effect of minimizing the water flow pressure on the pier foundation p-1 by allowing the water flow pattern to pass through the bridge, It is possible to achieve an effect of blocking the scouring phenomenon around the pier p.

In addition to protecting the pier foundation p-1 by surrounding the surround pence 2 with the surround fence 2, it is possible to secure the safety of the bridge by repairing and reinforcing the pier foundation p-1 through filling the replenishment part of the damaged part You can.

Along with this, it is possible to reduce the production cost of equipment using waste plastics and the effect of resource recycling as well as the effect of green environment creation based on these effects.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed in accordance with the following claims, and all technical ideas within the scope of the claims should be construed as being included in the scope of the present invention.

A: Protection device, 1: Divide Bow
2: Surround fence, 3, 3 ': Link device
11: connection shaft portion, 11a:
11b: hollow portion, 12: first wale band
13: flow inducing feather, 14: clipper line
21: reinforcement panel, 22: binding clip
31: support member, 32: finishing cap
33: Fixing nut, 34: Retracting cylinder
35: support rod, 36: elastic spring
111: first fastening groove, 211: flange
212: second wale, 213: connecting buttocks
213-1: fastening hole, 213-2: second fastening hole
341, 351: Coupling Tee

Claims (8)

delete A divide bow which is disposed on one side of a bridge pillar that is opposed to the direction of the water flow so as to change the water flow pattern so that the water flow pressure does not reach the bridge pillar foundation and the bed material floating along the water flow does not collide with the bridge pillar foundation; A surround fence in which the divide bow is installed on one side and surrounds and protects and reinforces the outside of the pier foundation; And a link device interconnecting the divide bow and the surround fence to support and support the disposition state of the divide bow and to exhibit shock absorbing shock absorbing effect transmitted to the divide bow,
Wherein the link device includes a cylindrical advancing / retreating cylinder having a buffering action that is pushed backward in response to an external force in a state of being assembled with a connection shaft portion protruding from an inner surface of the divide bow; A rod-like support rod which is assembled to the connecting buttocks protruding from the outer surface of the reinforcing panels arranged on one side facing the bow and guides the retreating action of the advancing / retreating cylinder with the projecting end inserted into the retreating cylinder; And a coil-like elastic spring for pushing the support rod inside the cylinder,
A "T" -shaped coupling tee is fitted to each of the distal ends of the advancing / retracting cylinder and the support rod to be engaged with the connecting shaft portion and the connecting buttock portion, and the projecting distal end of the connecting shaft portion and the proximal end A binding groove corresponding to the binding ties is formed,
Wherein the surround fence includes a plurality of reinforcing panels disposed in close contact with each other on the entire outer surface of the pier foundation, and a plurality of binding clips for joining between the reinforcing panels, wherein the reinforcing panel has a flange The reinforcing panel is folded to one side and a watertight member is applied or overlapped between the flanges of the reinforcing panels to block the gap and the reinforcing material is filled inside the reinforcing panel to repair and repair the damaged portion of the pier foundation, Reinforced,
The divide bow is arranged to be wider than the front width of the surround fence that opposes the water flow direction and has a ">"-type structure adapted to dispersion of water flow patterns on both sides of the pier foundation, Wherein at least one flow inducing vane is formed to reduce the flow velocity and thereby suppress the flow pressure on the foundation of the bridge pier.
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The center edge protruding forward of the divide bow has a curved structure in which the central portion is inwardly directed as compared with the upper and lower portions when viewed from the side, thereby forming a clipper line for preventing the water flow from crossing over the bridge pier foundation Wherein the pillar-type foundation protection device is a three-pillow type bridge pillar basic protection device.

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