KR101680347B1 - Wedge base for preventing scour and reinforcing base, and method for constructing the same - Google Patents

Abstract

The present invention relates to a wedge-type foundation structure having a foundation and a scour-preventing function, and a construction method of the wedge-type foundation structure. The construction of the wedge-type foundation structure is simple and stabilizes the bottom of the river while the base of the bridge is firmly installed. And can be easily applied to a small pier without a hole.
The wedge-type foundation structure according to the present invention and having a scour-preventing function is characterized in that the wedge-shaped foundation structure of the bridge pier base includes a bridge bridge (1) for fixing the bottom portion to the bottom of the river; A base plate (10) which is fixed on the bottom of the river and is supported on the bottom of the river by a bridge piercing tube (14) penetrating through the bridge, the piercing base plate (10) And wedge means inserted between the periphery of the bridge pier and the bridge piercing cylinder so as to fix the bridge pier and the base plate for preventing the scouring. Wherein the wedge means comprises a lower wedge means (20) provided below the partition plate of the scoop prevention base plate and an upper wedge means (30) provided on the upper portion of the partition plate, wherein the lower wedge means and the upper wedge means The means is installed vertically symmetrically with respect to the partition plate so that the wedge pieces are inserted into the lower portion and the upper portion of the piercing insertion cylinder, respectively, so that the pierce is wedged. Wherein the lower wedge means and the upper wedge means comprise a pierce support ring coupled to the periphery of the pier, a piercing support ring protruding upward or downward from the inner diameter side of the pierce support ring, and between the periphery of the pier and the pierce insertion cylinder And one or more wedge pieces inserted and fixed by screwing the bridge pier and the base plate for preventing the scouring.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wedge-type foundation structure having a base and a scour prevention function,

The present invention relates to a pier (a bridge supporting an upper slab of a bridge, a tower of a wind power facility, a file of an offshore structure, etc.), a basic stabilization structure by easy installation and scouring, and more particularly, The present invention relates to a wedge-type foundation structure having a base and a scour prevention function, which can stabilize the ground and prevent scouring and maintain the bridge pier firmly by installing the foundation without any hindrance to the river or the sea, and a construction method thereof.

Bridges and marine facilities that cross rivers or seas are composed of piers (towers, piles, etc.), which are substructures, and slabs, wind power generators, and structures, which are upper structures constructed on the piers.

The bridge is constructed in such a manner that the bottom is fixed to the base of the river by a pile or the like or directly fixed.

Generally, the erosive action that the facilities installed on the bottom of the river or the river is lost by the flow of the water is referred to as scour. In general, the descending flow swirls on the lower part of the bridge around the pier, The part is locally scratched and is causing the bridge breakage.

In order to prevent the conventional scouring action, for example, a slagging method is widely used to reduce the local scour that is eroded by installing a lot of stones at the lower part of the bridge pier. However, There is a disadvantage that it is necessary to use a heavy equipment and a heavy equipment to mobilize the equipment, and it is disadvantageous that an excessive amount of cost is incurred and that the construction stone can be lost due to a rapid flow of descending flow.

Also, the pile method for weakening the vortex motion causing the scour by dispersing the flow approaching the pier by establishing a large number of small piles immediately upstream of the pier is a method in which several piles are placed on a caisson having a large sectional area, The caisson suppresses the downward pressure that directly impinges on the pseudoparticle directly upstream of the pier, so it can reduce the scour somewhat, but according to the experiment, the diameter of the caisson must be much larger than the diameter of the pier, It is necessary to set the conditions such as the effect only when it is lower than the pier diameter than the river bed.

In order to solve such a problem, Patent Document 1 (Patent Registration No. 10-0308743) is known.

In Patent Document 1, a flange is formed to be downwardly bent to the inside of a semicircular semi-circular plate so as to correspond to an outer circumferential surface of a circular pier, and a left semi-circular plate in which a plurality of bolt holes are bored outwardly are formed at both ends of the flange; Wherein a flange bent downward is formed inside the semi-circular semi-circular plate having the same configuration as that of the left semi-circular plate, and a fastener having a plurality of bolt holes drilled outward is bent to the right And it is effective to prevent the lower part of the periphery of the pier from scouring by dissipating the downward flow and the swirling force which are easy to install and cause local scouring from the bedside near the bridge pier. However, It is not possible to prevent scouring of bridge pier due to the loss of river bottom due to the failure of preventing the drainage of the bottom of the river only because the semi-circular plate is only connected to the periphery of the bridge pier, and the right and left half plates and bridge pier can not be firmly connected due to production error .

In Patent Document 2 (Japanese Patent Registration No. 10-0615720), a bridge pier is formed at a lower portion of a bridge pier of a road, and a scour prevention means is provided at a lower outer surface of the bridge pier foundation; Wherein the shroud prevention means is constituted such that a plurality of shroud restricting blocks are formed on the outer periphery of the pillar base portion of the circular columnar shape by being connected to the side surfaces of the shroud restraining blocks by a binding anchor rod so as to form a ring shape, And a washer is inserted in the end of the U-shaped fastening ring and fixed by a nut, wherein the U-shaped fastening ring is inserted into the anchor ring between the connecting portions of the scour prevention block. And a lower layer is completed by pouring concrete into a space between the plurality of scour prevention blocks and the bridge pier block, and a plurality of upper layers are formed so as to be smaller than a diameter of a plurality of scrape- And it is difficult to stabilize the bottom of the river and fix it to the pier through the concrete, but it is difficult to work underwater and the workability is poor.

That is, the bridges and the substructure of the offshore structure according to the prior art have a difficulty in constructing a footing part by using a number of separate hypotheses, and the stability is weakened due to scouring.

Patent No. 10-0308743 Patent No. 10-0615720

SUMMARY OF THE INVENTION The present invention has been made in an effort to solve the above-mentioned problems, and it is an object of the present invention to provide a method of stabilizing a river bottom by constructing a foundation by a simple method and firmly installing a foundation of a bridge pier, And a wedge-type foundation structure having a foundation that can be installed and a scour-preventing function, and a method of constructing the wedge-type foundation structure.

The pier foundation and the wedge-type foundation structure having the scour-preventing function according to the present invention are installed at the bottom of the river and inserted into the pier through the pierce insertion cylinder passing through the upper and lower portions to be supported on the bottom of the river, A base plate for preventing scouring which includes a plurality of pointed plates or a conical tube and supports a pier; And a wedge means inserted between the periphery of the bridge pier and the bridge piercing cylinder so as to fix the bridge pier and the base plate for preventing the scouring.

Preferably, the wedge means includes a pierce support ring coupled to a periphery of the pier, a piercing support ring protruding upward or downward from the inner diameter side of the pierce support ring and inserted between the periphery of the pier and the pierce insertion barrel And at least one wedge piece for tightening and fixing the bridge pier and the base plate for preventing the scouring.

Wherein the wedge means is divided into lower wedge means provided below the partition plate of the scoop prevention base plate and upper wedge means provided on the upper portion of the partition plate, and the lower wedge means and the upper wedge means are divided by the partition plate And the wedge pieces are inserted into the lower and upper portions of the piercing insertion cylinder, respectively, so that the pierce is wedge-engaged.

The lower wedge means and the upper wedge means are simultaneously raised and lowered in mutually opposite directions through a combination of a rack and a pinion, and the bridge piers are fixed in a wedge-like manner at both the lower and upper sides.

A method of constructing a wedge-type foundation structure having a foundation and a scour prevention function according to the present invention comprises the steps of installing a bridge pier in a river so that the bottom of the pier is inserted and fixed in the bottom of the river; A wedge-type foundation structure of a bridge piercing base provided with a base plate for preventing scouring and having a wedge means and a pierce insertion hole penetrating vertically is installed, and the bridge pier is inserted into the bridge pier of the base plate for preventing scuffing, A second step of installing a negative wedge-shaped foundation structure on the bottom of the river; The base plate for preventing the scouring is lowered into the bottom of the river to fix the base plate for preventing the scouring to the bottom of the river, and the wedge means is inserted into the periphery of the bridge pier and the bridge- And a third step of wedge-fixing the bridge pillar and the base plate for preventing the scouring by inserting the bridge pillar into a wedge-shaped manner.

A wedge-type foundation construction method having a foundation and a scour prevention function according to the present invention is characterized in that a wedge-shaped foundation structure of a bridge pier foundation provided with a base plate for preventing scouring and a wedge means, A first step; A second step of inserting a bridge pier into a bridge pier provided in a base plate for preventing wedge of the wedge-shaped foundation structure of the bridge pier foundation installed in the first step, and fixing the bottom of the pier bridge to the bottom of the river to fix; The base plate for preventing the scouring after the second step is lowered to the bottom of the river to fix the base plate for preventing the scouring to the bottom of the river while the wedge means is inserted between the periphery of the bridge pillar and the bridge- And a third step of wedge-fixing the bridge pillar and the base plate for preventing the scouring by inserting the bridge pillar into a wedge-shaped manner.

According to the wedge-type foundation structure and the construction method having the foundation and the scour prevention function according to the present invention, after the wedge-type foundation structure is installed on the bottom of the river, the wedge-type foundation structure is fixed on the bottom of the river, The wedge-shaped foundation structure is firmly installed by the method to secure the stability of the offshore structure, the air can be shortened through easy construction, and the construction cost can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a wedge-type foundation structure having a foundation and a scour prevention function according to Embodiment 1 of the present invention. FIG.
FIG. 2 is a state before wiping of a wedge-shaped foundation structure having a foundation and a scour prevention function according to Embodiment 1 of the present invention. FIG.
Fig. 3 is a state diagram of a wedge-shaped foundation structure having a foundation and a scour prevention function according to Embodiment 1 of the present invention. Fig.
Fig. 4 is a state diagram of a wedge-shaped foundation having a foundation and a scour prevention function according to a second embodiment of the present invention. Fig.
5 is a state diagram of a wedge-shaped foundation having a foundation and a scour prevention function according to a second embodiment of the present invention.
FIGS. 6A and 6B illustrate a method of constructing a wedge-type foundation structure having a foundation and a scour prevention function according to the present invention, before the wedge-shaped foundation structure is settled.
7 is a view showing a process of fixing and joining a wedge-type foundation structure in a construction process of a wedge-type foundation structure having a foundation and a scour prevention function according to the present invention.
8 is a view showing an example in which concrete is laid on a foundation plate applied to a wedge-shaped foundation structure having a foundation and a scour prevention function according to the present invention.
9 is a perspective view showing an example of a casting cap for casting concrete on a base plate applied to a wedge-shaped foundation structure having a foundation and a scour prevention function according to the present invention.
10 is a view showing an example in which a plurality of wedge-shaped foundation structures having a base and a scour-preventing function according to the present invention are installed, and the base plates for preventing adjacent scouring are interlocked.
11 is a view showing an example in which a column is formed on an upper part based on water of a wedge-shaped foundation structure having a foundation and a scour prevention function according to the present invention.

≪ Example 1 >

As shown in FIGS. 1 to 3, the wedge-shaped foundation structure 100 having a foundation and a scour-preventing function according to the present embodiment can be used for supporting an upper slab of a bridge, supporting a wind power generation facility, As a wedge means for wedge-fixing the bridge pier 1 to the base plate 10 for preventing the scouring both of which are installed on the bottom of the river and the bottom wedge means 20 and the upper wedge Means (30).

The base plate 10 serving as the anti-scouring base is configured to have a cross-sectional area larger than that of the bridge pier 1 to prevent scouring of the river bottom and the bridge pier 1 while functioning as a base portion (footing portion) And a horizontal partition plate 13 formed inside the frame 12 and a partition plate (not shown) of the base plate body 11 serving as the anti-scouring base plate 11 13 which are formed vertically in the vertical direction and penetrate the pier 1. The piercing hole 14 is formed at the bottom of the base plate body 11 for preventing the scouring so as to protrude toward the bottom and is inserted and fixed to the bottom of the river. And a fixing member 15.

The base plate 10 for preventing scouring can be made of various materials such as metal, synthetic resin, and concrete.

Since the height of the frame 12 is larger than the thickness of the partition plate 13, a space is formed in the upper part and the lower part of the partition plate 13, and the upper space is used as a space for fixing the base plate 10 serving as the anti- While the lower space is utilized as an installation and operating space for the lower wedge means 20. [

The bridge piercing cylinder 14 is for fixing the bridge pier 1 and the base plate 10 for preventing the sluggishness in a wedge manner and is formed vertically in the vertical direction at the center of the partition plate 13, ) Is inserted. The inner diameter of the piercing insertion tube 14 is formed to be larger than the outer diameter of the pier 1 so that the piercing hole 1, the lower wedge means 20 and the lower wedge means 30 are fixed in the piercing insertion tube 14. That is, the inner diameter of the piercing insertion tube 14 is such that the wedge pieces of the lower wedge means 20 and the upper wedge means 30 can be inserted between the pierce insertion tube 14 and the pier 1, The wedge pieces must have a clearance smaller than the thickness of the wedge pieces so that the wedge pieces are fixed in a wedge-like manner.

A reinforcing rib 10a is formed at the periphery of the piercing insertion tube 14. [ The reinforcing ribs 10a may be radial in which both sides are connected to the corner portions of the piercing insertion tube 14 and the base plate body 11 serving as the anti-scarring base. Also, the reinforcing rib 10a may be provided with one or more fill holes filled with concrete in order to increase the binding force with the concrete when the concrete is poured.

The fixing member 15 is formed at a bottom portion of the base plate body 11 serving as the anti-scraping preventing member so as to occupy a plurality of, preferably two, sides adjacent to the four corners, The plate 10 keeps its installation position without shaking due to a flow velocity or the like, and consequently prevents a scour phenomenon at the bottom of the river.

Further, for securing the supporting force of the base plate 10 for preventing the scouring, a fixing rod 15-1 having a top cross section having a small cross-sectional area can be applied to the bottom portion.

In this embodiment, the base plate 10, the lower wedge means 20 and the upper wedge means 30 are connected by a rack and a pinion method, and thus the partition plates 13 of the base plate body 11 serving as the anti- The pinion 16 is mounted so as to be rotatable in place. The pinion 16 is formed at a predetermined interval along the circumferential direction at the periphery of the pierce insertion cylinder 14 and is formed of a number of racks which are the guide rails of the lower wedge means 20 and the upper wedge means 30 It depends on location.

The partition plate 13 is provided with holes 17 and 18 penetrating upward and downward so that the racks of the lower wedge means 20 and the upper wedge means 30 penetrate respectively inside and outside the center of the pinion 16 Respectively.

The base plate 10 for preventing the scouring can be configured so that the lower wedge means 20 and the upper wedge means 30 are driven only in the direction for wedge engagement (reciprocation of straight ascending and descending). Since the guide can be configured in various ways such as guide projections and guide grooves, a specific example is not described.

The lower wedge means 20 includes a piercing support ring 21 coupled to the periphery of the pier 1, at least one wedge piece 22 protruding upward toward the inner diameter side of the pierce support ring 21, And a rack 23 which is protruded upward toward the outer diameter side of the ring 21 and which is an elevating guide piece engaged with the pinion 16 while penetrating the hole 17 upwardly.

Is provided so as to be slidable around the pierce (1) of the pierce support ring (21).

The wedge piece 22 is inserted between the periphery of the pierce 1 and the pierce insertion cylinder 14 when the piercing lever 1 is linearly moved by the rack 23 and the pierce 1 and the base plate 10 serving as the anti- For example, a cylindrical shape, and a plurality of pieces of arcuate shape may be formed along the circumferential direction.

The wedge piece 22 may be a tapered cross-section that gradually becomes thinner at the end for wedge coupling of the bridge pier 1 and the pierce insertion tube 14, and all cross-sections with tapered portions are possible to enable wedge engagement .

The rack 23 allows the lower wedge means 20 to move linearly when the pinion 16 is lowered (rotated and lowered) due to the engagement with the pinion 16.

The rack 23 may be fixed vertically to the pillar support ring 21 or may be installed to be adjustable in angle through the pivot pin and in the latter case to be supported in a direction to mate with the pinion 16, As shown in FIG.

At the end of the rack (23), a separation preventing jaw (24) is formed so as not to be separated from the base plate (10) for preventing the scouring. The separation preventing jaw 24 is supported on a stopper formed on the partition plate 13 of the base plate 10 for preventing the scouring, thereby preventing the lower wedge means 20 from coming off.

The upper wedge means 30 includes a piercing support ring 31 coupled to the periphery of the pier 1, at least one wedge piece 32 protruding upward toward the inner diameter side of the pierce support ring 31, And a rack 33 protruding upward toward the outer diameter side of the ring 31 and meshing with the pinion 16 while penetrating the hole 18 upward.

The upper side wedge means 30 has the same structure as the lower side wedge means 20 (there is no separation preventing jaw 24 of the lower side wedge means 20), and the lower side wedge means 20, It is installed symmetrically.

As described above, the base plate 10 serving as the anti-scouring preventing member in which the lower wedge means 20 and the racks 23 and 33 of the upper wedge means 30 are engaged with one pinion 16 and the pinion 16 is provided, The lower wedge means 20 ascends and at the same time the upper wedge means 30 is lowered so that the wedge pieces 22 and 32 move in the direction of collecting the lower and upper portions of the wedge pieces 22 and 32, So that the base plate 10 and the bridge pier 1 are firmly fixed to each other.

The wedge pieces 22 of the lower wedge means 20 and the wedge pieces 32 of the upper wedge means 30 may overlap each other at the periphery of the pierced hole 1 and inside the pierced insertion tube 14 Do.

The construction method of the wedge-type foundation structure having the foundation and the scour prevention function according to the present embodiment is as follows.

1. Installation of piers and scaffold base plates.

A method of installing a pier 1 and a wedge-type foundation 100, a method of re-installing a wedge-type foundation after the pier 1 is pierced, a method of re-installing a pier 1 after a wedge- .

The former method is as follows.

As shown in FIG. 6A, the bridge 1 is installed along the path of the bridge, and the bottom of the bridge 1 is inserted and fixed in the bottom of the river, and all the methods for constructing the current bridge pier, .

After the pier 1 is constructed as described above, the wedge-shaped foundation 100 is lowered to the bottom of the river by fitting the bridge into the pierce insertion tube 14 of the wedge-

In the latter method, as shown in FIG. 6B, after the wedge-shaped foundation structure 100 is installed on the bottom of the river, the pier 1 is inserted into the pierce insertion cylinder 14, and the bottom is inserted into the bottom of the river Settle. When the fixing groove of the pier 1 is formed on the bottom of the stream, the wedge-type foundation structure 100 is constructed so that the fixing groove and the pierce insertion tube 14 are aligned with each other.

2. Wedge-type connection of piers and base plate combined with anti-scouring.

In the previous step, the base plate 10 serving as the anti-scouring base is not fixed but is merely attached to the bridge pier 1 and is placed on the bottom of the river. In this process, the bridge pier 1 and the base plate 10 serving as anti- Lt; / RTI >

As shown in Fig. 7, when the base plate 10 serving as the anti-scouring preventing member is forcibly lowered (this will be described in detail later), the fixing plate 15 is inserted and fixed to the bottom of the river At this time, the pinion 16 descends together with the base plate 10 for preventing the scour so that the rack 23 of the lower wedge means 20 engaged with the pinion 16 and the rack 33 of the upper wedge means 30 The upper wedge means 30 is lowered and the lower wedge pieces 22 are moved in the opposite directions from each other in the circumferential portion of the pierce 1 and the pierced insertion tube 14, The wedge pieces 32 on the upper side are inserted and wedged from the upper side to the lower side between the periphery of the bridge pier 1 and the pierce insertion cylinder 14.

Fig. 2 shows a state prior to wedge bonding, and Fig. 3 shows a state after wedge bonding.

After completion of the construction of the bridge pier 1 and the wedge-shaped foundation structure 100, a slab, which is an upper structure of the bridge, is constructed on the bridge pier. The slab applied to the present invention is applicable to all known slabs.

On the other hand, the filling space formed on the partition plate 13 of the base plate body 11 serving as the anti-scouring base is filled with heavy materials, and stones and concrete can be used.

In the case of the stones, the stones are filled in the filling space of the base plate body 11 for preventing the scouring, and then a fixing net is installed to prevent the loss of stones.

In the case of concrete, the casting cap 40 can be applied as shown in FIG. 8 so that the concrete (underwater concrete) is not leaked but cured. The casting cap 40 is a structure having a mold part 41 covering the filling space of the base plate 10 serving as the anti-scouring base.

The form part 41 is configured in all the forms for pouring concrete. Although not shown in the drawing, reinforcing rods 46 are laid in the form part 41.

9, the pouring cap 40 is formed in a tubular shape in the form part 41 so as to facilitate the use of the pouring cap 40, and a piercing support part 42 slidably coupled to the periphery of the piercing hole 1 Lt; / RTI >

In order to reduce the positive pressure when the casting cap 40 is lowered in the water, the concrete is not leaked but a large number of water passing through the concrete casting pipe 40 A water flow hole 44 may be provided.

≪ Example 2 >

FIGS. 4 and 5 illustrate a wedge-joined state and a wedge-bonded state of a wedge-shaped foundation 100 having a base and a scour-preventing function according to the present embodiment, respectively. And the lower wedge means 20 and the upper wedge means 30 are driven in a manner different from the pinion type. The connecting rod 19 is rotatably mounted on the partition plate 13 of the base plate 10 for preventing the scouring, The wedge means (20) and the upper wedge means (30) are provided with elevation guide pieces (25, 35) on the outer diameter side of the pierce support rings (21, 31).

The connecting rod 19 is mounted on the upper portion of the partition plate 13 so as to be rotatable via a shaft pin to a boss having a central portion protruding upwardly from the partition plate 13.

The elevating guide pieces 25 and 35 pass through the holes 17 and 18 of the partition plate 13 and are connected to the connecting rod 19 through the connecting pins 26 and 36 respectively and are connected to the connecting pins 26 and 36 ) Is connected to the slot.

4, when the base plate 10 serving as the anti-shrinkage preventing member is lowered for wedge engagement, the lifting guide piece 25 of the lower wedge means 20 is raised and the connecting pin 26 is lifted, The connecting rod 19 is rotated from the state shown in FIG. 4 to the state shown in FIG. 5, so that the lifting guide piece 35 of the upper wedge means 30 descends simultaneously.

In this process, the wedge pieces 22 and 32 are wedge-coupled between the periphery of the bridge pier 1 and the bridge piercing cylinder 14, which is the same as in the first embodiment.

Since this embodiment is also constructed in the same manner as in Embodiment 1, a detailed description of the construction method will be omitted.

On the other hand, as shown in FIG. 10, when a plurality of piers 1 are applied, the base plate 10 for preventing the scouring of the wedge-type foundation structure 100 installed at each pier 1 is interlocked with neighboring ones, It is possible to maximize the scraping prevention effect.

The interlocking structure of the anti-scraping base plates 10 is structured such that the peripheries of the base plate 10 serving as the anti-scarring bases are stepped so as to overlap each other, and the peripheries are overlapped and fixed by the anchors 50 have.

The interlocking structure is not limited to the above, and a plurality of fingers may be formed on the periphery of the base plate 10 to prevent interlocking. The interlocking structure may be interlocked through the engagement of the fingers. Do.

Although the wedge-shaped foundation structure 100 having the foundation and the scour prevention function according to the present invention has been described and shown as supporting the upper structure (slab or the like) by projecting the bridge pier 1 from the bottom of the river, The present invention may also be used as a pile base supporting pillar 2 (alternating, pier, wind power generator tower, etc.). At this time, one or more than one base plate 10 serving as the anti-scouring base can be applied.

The placement cap 40 includes a die 41 in the same manner as the above-mentioned placement cap 40. The column placement portion 45 is integrally formed with the die 41. The head portion of the bridge pillar 1 is used as a base plate When the concrete is placed in the pillar placement part 45 and the molding part 41 of the casting cap 40 after the wedge-shaped foundation structure 100 of the present invention and the scouring prevention function 100 And the column 2 can be integrally formed. In addition, the wedge-shaped foundation structure 100 having the base of the present invention and the scour-preventing function of the form part 41 and the column installation part 45 functions as a footing part of the column 2. That is, in this case, the bridge pier 1 functions as a pile fixed in the ground. A flange that can be supported on the bottom of the river may be formed at the lower end of the casting part 41 and may be coupled with the outer circumferential surface of the base plate 10 for preventing the scouring. However, the gap is such that the concrete does not leak.

1: Pier, 10: Base plate combined with anti-scour
11: base plate body for preventing scouring, 12: frame
13: partition plate, 14: pierce insertion cylinder
15, 15-1: Fuser, fixing rods, 16: pinion
17, 18: hole, 19: connecting rod
20: lower wedge means, 21,31: pierce supporting ring
22, 32: Wedge piece, 23, 33: Rack
24: Leakage prevention jaw, 25, 35:
30: upper wedge means, 40: casting cap
50: anchor,

Claims (16)

A bridge pier (1) which is inserted and fixed at the bottom of the river;
A base plate (10) fixed to the bottom of the stream and supporting the bridge pier through a pierce insertion tube (14) penetrating the bridge through the pierce insertion pipe (14) while being supported by the bottom of the stream;
And wedge means inserted in a wedge-shaped manner between the periphery of the bridge pier and the bridge piercing cylinder to fix the bridge pier and the base plate for preventing the scouring,
The wedge means includes a piercing support ring coupled to the periphery of the pier, a piercing support ring protruding upward or downward from the inner diameter side of the pierce support ring and inserted between the periphery of the pier and the pierce insertion cylinder, And one or more wedge pieces for tightening and fixing the base plate for preventing the scouring by wedge-
A lower wedge means (20) provided below the partition plate of the scoop prevention base plate and an upper wedge means (30) provided on the upper portion of the partition plate, wherein the lower wedge means and the upper wedge means And the wedge pieces are inserted into the lower and upper portions of the pierce insertion cylinder to wedge-engage the bridge pier, respectively, while being upwardly and downwardly symmetrical about the plate. A wedge-shaped foundation structure. 2. The anti-scrape base plate according to claim 1, wherein the anti-scrape base plate comprises: a base plate body (11) serving as an anti-scraping base, the base plate body being composed of a frame (12) and a horizontal partition plate A pair of piercing inserting tubes 14 formed on the partition plate of the body in the vertical direction so as to penetrate the bridge pierces, one or more fusing members 14 protruding toward the bottom portion of the bottom portion of the base plate body for anti- (15) and a pressure bar (15-1). The wedge-type foundation structure having a foundation and a scour prevention function. [3] The scaffold according to claim 2, wherein the base plate for preventing the scouring is provided with a base and a scour prevention function, characterized in that a heavy object including stones is stored in the upper part of the partition plate of the anti- A wedge-shaped foundation structure with delete delete The lower wedge means and the upper wedge means are formed with racks (23, 33) which are engaged with the pinions, respectively, so that the lower wedge means and the upper wedge means are formed in the partition plate of the base plate Wherein the wedge-shaped base structure having a foundation and a scour-preventing function is characterized in that the wedge-shaped foundation structure is simultaneously elevated in opposite directions through the pinion. The lower wedge means and the upper wedge means are provided with elevating guide pieces (25, 35) connected to the connecting rods, wherein the lower wedge means and the upper wedge means are mounted on the partition plate of the base plate for anti- And are simultaneously elevated and lowered in mutually opposite directions through the connecting rods. The wedge-type foundation structure having a foundation and a scour prevention function. The wedge-shaped foundation structure according to claim 1, wherein the wedge pieces of the lower wedge means and the upper wedge means are wedge-connected with each other between the peripheral portion of the pier and the pierce insertion cylinder. . The wedge-type foundation structure according to claim 2 or 3, wherein the base plate for preventing scouring is interlocked with a neighboring base plate serving as both the anti-scouring base and the interlocking portion at the periphery thereof. The wedge-type foundation structure according to claim 1, wherein the bridge pier is arranged in the base plate for preventing the scouring, and the wedge-type foundation structure having the base and the scour prevention function is formed by piling the foundation of the pile, Wherein the wedge-shaped base structure has a foundation and an anti-scouring function. A first step of installing the bottom of the bridge pier 1 so as to be inserted and fixed in the bottom of the river;
A wedge-shaped foundation structure of a bridge pier foundation as set forth in claim 1, which is provided with a base plate for preventing scouring and a wedge means provided with pierce insertion piers penetrating up and down, A second step of installing a wedge-shaped foundation structure of the bridge pier base on the bottom of the river;
The base plate for preventing the scouring is lowered into the bottom of the river to fix the base plate for preventing the scouring to the bottom of the river, and the wedge means is inserted into the periphery of the bridge pier and the bridge- A third step of wedge-fixing the bridge pier and the base plate for preventing the scouring so as to be wedge-inserted between the piers;
And a fourth step of constructing a slab on top of the pier after completing the construction of the pier through the third step. A first step of installing a wedge-shaped foundation structure of a bridge pier foundation according to claim 1 provided with a base plate for preventing scouring and a wedge means provided with pierce insertion cylinders penetrating up and down;
A second step of inserting a bridge pier into a bridge pier provided in a base plate for preventing wedge of the wedge-shaped foundation structure of the bridge pier foundation installed in the first step, and fixing the bottom of the pier bridge to the bottom of the river to fix;
The base plate for preventing the scouring after the second step is lowered to the bottom of the river to fix the base plate for preventing the scouring to the bottom of the river while the wedge means is inserted between the periphery of the bridge pillar and the bridge- A third step of wedge-fixing the bridge pier and the base plate for preventing the scouring so as to be wedge-inserted between the piers;
And a fourth step of constructing a slab on top of the pier after completing the construction of the pier through the third step. [12] The method according to claim 11 or 12, wherein in the third step, the upper portion of the base plate for preventing the scouring is filled with stones, the stones are covered with a fixing net, And fixing the wedge-shaped foundation structure with the foundation and the scour prevention function. 14. The method according to claim 13, wherein, when the concrete is laid on the base plate for preventing the scouring, a casting cap for covering the upper portion of the base plate for preventing the scouring is provided, and concrete is laid between the casting cap and the base plate for anti- Wherein the casting mold is demolded after the curing of the concrete, and a method of constructing a wedge-type foundation structure having a foundation and a scour prevention function. [Claim 16] The method of claim 14, wherein the casting cap is formed of a mold part covering an upper part of the base plate for preventing the scouring, a pierce supporting part protruding in a tubular shape on the molding part and slidably coupled to the periphery of the pier Construction method of wedge type foundation structure with foundation and scour prevention function. [Claim 15] The method according to claim 14, wherein the casting cap comprises: a casting part covering an upper portion of the scraping prevention base plate; a casting part protruding in a tubular shape up to a height of a pier in the casting part; And a pillar placing part (45) for piling the pillar integrally with each other. The bridge pillar is combined with the concrete in the form part of the casting cap, or combined with the reinforcing bars and concrete installed after being assembled on the ground, Wherein the base of the pile is integrally formed with the base plate for preventing scouring.

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