KR100607234B1 - A struture for preventing break river bank - Google Patents

Abstract

The present invention relates to a river dike lower scour prevention bar, and aims to effectively prevent scrubbing of a river dike bottom and protect a river ecosystem.

River dike lower scour prevention bar according to the present invention, the foundation retaining wall (10) which is constructed under the bank (1); A plurality of scour prevention blocks 20 constructed in the form of stairs from the base retaining wall and having a stone filling portion 21 therein; One or more anchor bolts 31 embedded in one side of the upper surface of the scour prevention block to protrude, one end is connected to one inner surface of the scour prevention block and the other end is penetrating through the other side of the scour prevention block A first binding means 30 comprising a binding bar 32 fastened to the anchor bolt 31 embedded in one side of the upper surface of the prevention block, and a fastener 33 for tightening the other end of the binding bar to the anchor bolt. ; A screw portion protrudes at the bottom of the base retaining wall, and is anchored in parallel with the anchor bolt of the scour prevention block 41, and the connecting ring 42 into which the anchor bolts arranged side by side are inserted through the connecting ring. It comprises a first binding means (40) consisting of fasteners (43) fastened to each of the anchor bolts.

Rivers, dikes, scours, scour blocks, binding bars

Description

River Scrub Lower Scourer {A STRUTURE FOR PREVENTING BREAK RIVER BANK}

1 is a construction state diagram of the river bank embankment protection according to the first embodiment of the present invention.

 Figure 2 is a perspective view of the main portion of the scour prevention block and the foundation retaining wall applied to the river scour lower scour guard according to the first embodiment of the present invention.

Figure 3 is a state diagram of the construction of the river bank embankment protection according to the second embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

1: dike, 2: river

10: foundation retaining wall, 20: scour prevention block

21: filling the seat, 22: boss

23,25,26: through hole, 24: drain hole

30,40: binding means, 31,41: anchor bolt

32,35: Binding Bar, 33,37,43: Fastener

34: fastener, 36: fastener

42: connecting ring,

The present invention is to prevent scour at the bottom of the dike, more specifically, to prevent the collapse of the dike by making the foundation of the base of the dike to prevent the scour at the bottom of the dike, to provide a habitat for fish, plants, etc. The present invention relates to a river scour prevention structure that can be provided.

A levee is a structure stacked high on the boundary line where rivers, lakes and seas are separated from the land for the purpose of preventing floods or water storage by preventing water from flowing out of the streams and facilitating the flow of water.

When the banks collapse, river water floods into settlements, rice paddies, and fields that live around the banks, which can cause enormous human and property damages and also destroy the river ecosystem.

The cause of the collapse of the dike may be various, such as river scour, ground subsidence, slope collapse, etc., but the biggest cause is the collapse of river dikes.

Therefore, in recent years, scrubbing prevention facilities have been constructed to prevent the collapse of banks caused by scouring of rivers.

The scour prevention facility mostly protects the underwater ecosystem because it prevents the bottom surface of the river from being washed away by the flood.

However, the scour prevention structure according to the prior art is that the concrete block is fixed to the river bottom or anchored with anchor, etc. In this case, when the ground subsidence occurs, the settlement is transferred from the bottom to the bank side, as well as the bottom of the river There is a problem that the destruction of the river ecosystem by causing collapse to the lower bank.

The present invention has been made to solve the above-mentioned conventional problems, and to provide a stream embankment lower scour guard to strengthen the lower part of the bank to facilitate the construction while preventing the collapse and the scour effectively.

In addition, another object of the present invention is to preserve the natural ecosystem by creating a river in a nature-friendly environment.

The lower bank embankment guard according to the present invention for achieving the above object, the base retaining wall is constructed in the lower part of the embankment, and comprises a plurality of scour prevention block is stacked in a stepped form from the base retaining wall filled The top scour prevention blocks on the base retaining wall side of the scour prevention block are bound to the foundation retaining wall through a binding means, and the scour prevention blocks are bound to each other through the binding means.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

<Example 1>

As shown in Fig. 1 and Fig. 2, the river dike lower scour prevention bar according to the present embodiment, the base retaining wall 10 formed along the stream in the lower part of the bank (1), and from the base retaining wall (10) to the bottom of the river First and second binding means (30, 40) for binding the scour prevention block 20 is installed, and the scour prevention block (20) to bind to / close to the base retaining wall 10 to the scour prevention block (20). The basic configuration is as follows.

The foundation retaining wall 10 is composed of a bottom portion 11 and a vertical portion 12 formed on the bottom portion 11, and is cast in place or made of precast concrete at the lower portion of the dike 1 so that Construction prevents the collapse of the banks (1).

Scour prevention block 20 is a rectangular box shape having a stone filling portion 21 opened toward the top, the stone filling portion (21) is filled in the stone filling portion 21 in the form of a staircase along the width direction of the river at the bottom of the river Constructed and described in more detail, the first stage scrubbing blocks 20F are constructed so that their upper surface is the same height as the bottom portion 11 of the base retaining wall 10, and the scour preventing blocks 20 of the following stages. They are constructed so that their front and rear sides face each other at a height difference.

The first binding means 30 is an anchor bolt 31 is embedded so that the screw portion 31a protrudes on one side of the upper surface of the scour prevention block 20, one end is connected to one inner surface of the scour prevention block 20 and the other end The two or more (shown as two in the figure) are fastened to the anchor bolt 31 embedded in one side of the upper surface of the scour prevention block 20 in the state penetrating the other side of the scour prevention block 20 The binding bar 32 and the other end of the binding bar 32 is composed of a fastener 33 for tightening the anchor bolt 31.

The binding bar 32 has a long bar shape, and fastening holes 32a and 32b are formed at both ends, respectively, and the first fastening hole 32a on one side is formed on one inner surface of the scour prevention block 20. It is detachably connected to the fastener 34 (consisting of a bolt and a nut) in a state inserted into the boss 22, and the second fastening hole 32b of the other side is inserted with an anchor bolt 31 to tighten the fastener 33 Tightened).

On the other wall of the scour prevention block 20 is formed a through-hole 23 through which the binding bar 32 penetrates. Even if the position (height, front and rear) of the scour prevention blocks 20 changes, the coupling bar 32 is connected. The through hole 23 is formed to have a size having a clearance. A plurality of drain holes 24 are formed in the wall of the scour prevention block 20.

By the first binding means 30, the scour prevention blocks 20, which are constructed in a step shape along the width direction of the river, are bound to each other, thereby preventing the local scour prevention block 20 from being separated.

In addition, the scour prevention blocks 20 having different stages are arranged in a zigzag form to be shifted, and are connected through two different binding bars 32 connected to different scour prevention blocks 20 thereon. This binds all the scour prevention blocks 20 arranged in the width direction and the length direction of the river.

The second fastening means 40 is an anchor bolt embedded in parallel with the anchor bolt 31 of the first stage scour prevention block 20F while the threaded portion 41a protrudes from the bottom portion 11 of the base retaining wall 10. (41), the anchor bolts 31 and 41 arranged side by side are fitted with a connecting ring 42 and the fasteners 43 screwed to the anchor bolts 31 and 41 fastened to the connecting ring 42, respectively. do.

Construction method of the lower bank embankment according to the present embodiment is as follows.

a. Foundation retaining wall construction. The slope of the levee 1 is arrange | positioned, and the foundation retaining wall 10 is constructed by constructing a site-casting or precast concrete retaining wall in the lower part of the levee 1 along the direction of the levee 1.

b. Scour prevention block construction. After crushing the floor in the form of a staircase from the embankment 1, the scour prevention blocks 20 are constructed in a stairway shape along the width direction of the river, and arranged in a zigzag form, and the sagging filling portion of the scour prevention block 20 ( 21) Fill the stone (S).

d. Bonding the first stage scour prevention block and the foundation retaining wall. Insert the connecting ring 42 into the anchor bolts 41 and 31 of the base retaining wall 10 and the first stage scour prevention block 20F, and tighten the screws 41a and 31a of the anchor bolts 41 and 31, respectively. The sphere 43 is fastened to bind the first stage scour prevention blocks 20 to the base retaining wall 10.

d. Bonding prevention block. The binding bar 32 is penetrated through the through hole 23, and one end is fastened to the boss 22 with the fastener 34, and the anchor bolt 31 is attached to the second fastening hole 2b of the binding bar 32. After insertion, the fastener 33 is screwed to the threaded portion 31a of the anchor bolt 31 to tighten the binding bar 32. As a result, the scour prevention blocks 20 arranged in a staircase and zigzag form are bound to each other.

The steps (c) and (d) can be reversed, and the binding method of the binding bar 32 is not limited to the above.

The action of the river bank embankment prevention guard according to this embodiment configured as described above is as follows.

The scour bar according to the present embodiment is constructed so that the uppermost scour prevention block 20F is close to the water surface so that the river water flows through the scour bar. The river water flowing into the scour prevention block 20F is drained through the drain hole 24 so that the scour prevention blocks 20 do not increase the load due to the load of the river water and thus do not settle the ground.

Moss, underwater vegetation, etc. grow in the sandstone (S) of the scour prevention block 20 can protect the river ecosystem by providing habitat space, spawning and hiding place where fish and the like can live in the water.

Meanwhile, the scour prevention blocks 20 are constructed from the base retaining wall 10, which is the foundation of the river embankment 1, to the bottom of the river, so that the scour prevention blocks 20 bind to each other and the foundation even when the flow rate of the river water is rapidly increased. Since it is bound to the retaining wall 10, the scour phenomenon does not occur in the lower part of the bank 1.

<Example 2>

As shown in FIG. 3, the lower bank embankment prevention guard according to the present embodiment has a novel configuration of the first binding means 30 compared with the aforementioned first embodiment, and the other configuration is the same as that of the first embodiment.

The first binding means 30 according to the present embodiment, one end is connected to the inner wall of the scour prevention block 20F having a relatively high height (connection structure is the same as that of the first embodiment) while the other side (thread portion is formed on the outer peripheral surface) Binding bar 35 penetrating through the through holes 25, 26 of the side wall abutting of the scour prevention block 20F, 20S disposed along the width direction, the through hole 26 of the lower scour prevention block 20S The fastening plate 36 is inserted into the fastening plate 36 through which the fastening bar 35 penetrates through and the fastening plate 37 through which the fastening plate 36 is fastened.

According to the present embodiment, as the binding blocks 36 and the fastening holes 37 are gathered with each other, the binding force between the scour prevention blocks 20 is increased as the scour prevention blocks 20 are increased. Local anti-separation, and also, the anti-washing block 20 is pushed toward the base retaining wall 10, so that the anti-washing block 20 and the base retaining wall 10 act as a support base to each other to collapse the embankment 1. And scour at the bottom can be effectively prevented.

As described above, according to the river bank lower scour prevention block according to the present invention, the scour prevention block is constructed in the form of a staircase from the base retaining wall, the scour prevention blocks are bound to each other and to the foundation retaining wall, the foundation retaining wall and scour prevention block As the binding force between the two increases, scour does not occur, and as a result, the collapse of the dike due to the scour can be prevented, so that enormous property damage and human injury due to the collapse of the dike can be prevented.

In addition, by providing habitat spaces such as vegetation and fish in the river, there is an effect such as to preserve the ecosystem and natural environment of the river.

While the invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, the invention is not limited to the configuration and operation as such is shown and described. Rather, it will be apparent to those skilled in the art that many changes and modifications to the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

Claims (3)

A base retaining wall (10) formed of a bottom portion (11) and a vertical portion (12) formed along a stream at a lower portion of the river dike (1); A plurality of scour prevention blocks 20 which are constructed in a stair shape so that a part of the front and rear surfaces facing each other from the base retaining wall are in contact with each other; First binding means (30) for binding the scour prevention blocks adjacent to each other in the width direction; And, the second retaining means 40 for binding the foundation retaining wall and the scour prevention block, The second binding means, the anchor bolt 41 is buried side by side with the anchor bolt of the scour prevention block while the screw portion protrudes on the bottom of the base retaining wall, the connecting bolt 42 is inserted into the anchor bolts arranged side by side And in the river bank lower scour prevention bar consisting of fasteners 43 are fastened to the anchor bolts respectively penetrating the connecting ring, The first binding means, at least one anchor bolt 31 is embedded so that the threaded portion protrudes on one side of the upper surface of the scour prevention block, one end is connected to one inner surface of the scour prevention block and the other end of the scour prevention block Consisting of the binding bar 32 is fastened to the anchor bolt 31 buried in one side of the upper surface of the scour prevention block to pass through while passing through and the fastener 33 for tightening the other end of the binding bar to the anchor bolt. The river bank dike bottom scour prevention. delete A base retaining wall (10) formed of a bottom portion (11) and a vertical portion (12) formed along a stream at a lower portion of the river dike (1); A plurality of scour prevention blocks 20 which are constructed in a stair shape so that a part of the front and rear surfaces facing each other from the base retaining wall are in contact with each other; First binding means (30) for binding the scour prevention blocks adjacent to each other in the width direction; And, the second retaining means 40 for binding the foundation retaining wall and the scour prevention block, The second binding means, the anchor bolt 41 is buried side by side with the anchor bolt of the scour prevention block while the screw portion protrudes on the bottom of the base retaining wall, the connecting bolt 42 is inserted into the anchor bolts arranged side by side And in the river bank lower scour prevention bar consisting of fasteners 43 are fastened to the anchor bolts respectively penetrating the connecting ring, The first binding means, one end is connected to one inner surface of the upper scour prevention block and the other end of the binding bar penetrating through the fastening holes 25, 26 of the upper scour prevention block and the lower scour prevention block ( 35), a fastening plate 36 coupled to the other end of the binding bar and a screw fastening to the binding bar to tighten the fastening plate to the inner surface of the lower side scour prevention block, characterized in that consisting of a Scour guard under the river banks.

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