KR100432805B1 - waterproofing structure for repairing of underwater construction and waterproofing method using the same - Google Patents

Abstract

PURPOSE: A cofferdam structure for repairing an underwater structure and a waterproof method are provided to secure a safe work place by blocking up gaps over 5 cm formed between the bottom side and a sidewall of the cofferdam and the underwater structure. CONSTITUTION: A cofferdam structure(100) for repairing an underwater structure fixed and mounted to an underwater structure side wall(4) of a breakwater, a dam, or a levee to secure a work place(S) is composed of an arc-shaped main frame(102) having an upside exposed to the air, a lower side placed on a bottom side(2), one side opened toward the side wall, and ends of both sides closely contacted along the side wall; a first shock absorbing bar(110a) disposed to the lower and side ends of the main frame and between the bottom side and the side wall and made from one of synthetic resin, wood, or metal for covering a gap; a first seat(120a) made from synthetic resin to cover the first shock absorbing bar; and a fixing member for contacting and fastening both edges of the first seat to the lower and side end edges of the main frame, the bottom side, and the side wall.

Description

Water-proofing structure for repairing of underwater construction and waterproofing method using the same

The present invention relates to a water barrier structure for the repair of underwater constructions and a waterproofing method thereof, and more particularly, along the sidewalls of the underwater construction in a state standing upright from the bottom for repair and repair of underwater constructions such as breakwater, dams, or embankments. The present invention relates to a clamper structure that is fixedly installed and defines an isolated workspace of an atmospheric environment in which a person can work inside, and a waterproofing method that can be applied thereto.

In general, breakwater refers to a building for preventing the waves from the sea and keeping the harbor at a constant temperature. A dam is a reservoir that crosses mountain valleys or streams. It refers to a building for preventing water leakage, sediment drainage, water intake, water level rise or collapse. A levee is a constant flow path for water in rivers, coasts, lakes and swamps. ) Refers to civil engineering structures built up with soil and sand to prevent flooding and to protect coasts and ports from storms, tsunamis and waves.

All of these underwater structures are installed upright from the bottom of the water, and are generally constructed of special concrete, which is water and flame resistant, and at least one water gate is provided as an underwater part for controlling the flow rate.

However, since these underwater structures are always in contact with water, phenomena such as corrosion and dropping occur frequently, especially in the hydrologic part where water is discharged at a high flow rate.

Therefore, for the repair of underwater structures, the working environment of the atmospheric environment where people and equipment can be accommodated should be created in the water. The simplest is to open the gate to expose all the stored water and then repair and repair it. Proceed. However, this is a waste of precious water, considering the reality of Korea, one of the nations lacking water.

Therefore, a water barrier structure is installed upright from the bottom of the water and is tightly fixed so as to surround a part of the inner wall of the breakwater. It will make up.

However, since the inner walls and bottom surfaces of underwater constructions, such as breakwaters, have bad flatness, a large amount of water can flow through the gap with the clam structure. Therefore, in order to prevent this, the existing waterproofing method takes divers to take risks. Entering into the soil, or a piece of wood or using a separate sealing material to prevent the gaps one by one bar, a lot of work time is required, costs are large and dangerous disadvantages.

Moreover, the waterproofing method of the existing clamshell structure which relies on the manual work is so unreliable that water is frequently introduced into the working environment during repair work, which is always a risk.

In order to solve this problem, there was introduced a clam structure such as the Republic of Korea Registered Utility Model Publication No. 20-0323105, a perspective view thereof is shown in FIG.

As shown, the existing clamper structure is composed of an arcuate body 10 having one side open to the top surface and the breakwater and a bottom surface 11 formed thereon, and a ring 12 for lifting is formed at its upper end, respectively. have. And water blocking index rubber 13 is installed up and down along the ends of both sides facing the breakwater, and a plurality of brackets 14 are provided with a bolt insertion hole 14a inwards, bracket 14 The fastening rubber 13 is tightly fixed to the breakwater by fastening the bolt through the sidewall of the breakwater.

Although the cladding structure of the structure as described above is somewhat advanced compared to the existing, if the depth is different from each other depending on the repair position, it is difficult to install simply and easily in the field, because it is necessary to separate the different cladding structures of different lengths, in particular, Considering that a gap of 5 cm or more may be formed between the inner walls of the concrete, there is a disadvantage in that the waterproof structure that depends entirely on the index rubber 13 is very weak.

In addition, the bottom surface 11 is formed, so that it is impossible to repair the floor, such as a breakwater, there are disadvantages that are difficult to be widely used according to various restrictions.

Accordingly, the present invention has been made to solve the above problems, and has a prefabricated structure that can be extended to the upper and lower plural layers to facilitate the length adjustment according to the maintenance position, in particular the seam portion that appears inevitably by adopting such a prefabricated structure Of course, the purpose of the present invention is to provide a water barrier structure and a waterproofing method applicable to the water barrier structure and the bottom and the side wall of the underwater construction, which sufficiently prevents the gap that can be generated more than 5 cm to define a safe and comfortable working space.

1 is a cross-sectional view of a conventional water barrier structure attached to the breakwater.

2 is a perspective view of the clapper structure according to the present invention.

Figure 3 is an exploded perspective view of the clam structure according to the present invention.

Figure 4 is a cross-sectional view of the clam structure according to the present invention.

5A and 5B are enlarged cross-sectional views showing enlarged B and C circles in FIG. 4, respectively.

Figure 6 is a flow chart for the waterproof method of the water barrier structure according to the present invention.

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

2: floor 4: side wall

100: water structure 102: main frame

102a and 102b: upper and lower mainframes 110a and 110b: first and second buffer bars

120a, 120b: first and second seats 130a, 130b: first and second flanges

140a, 140b, 140c, 140d: first to fourth guide frames

150a, 150b, 150c: first to third bolt

152a, 152b, 152c: first to third nuts 160: screw

S: Workspace

The present invention is a water barrier structure for repairing the underwater construction is fixed to the side wall of the breakwater or dam or embankment to define the working space of the atmospheric environment to achieve the above object, the upper surface exposed to the atmosphere and An arc-shaped mainframe in which a bottom surface seated on a floor and one surface facing the sidewall are opened so that end portions of both sides are in close contact with the sidewall; A first buffer bar interposed between the bottom and side ends of the mainframe and the bottom and the sidewalls, the first buffer bar being made of a material selected from synthetic resin, wood, or metal covering the seam therebetween; A first sheet of synthetic resin covering the first buffer bar; It provides a water blocking structure for repairing the underwater construction, comprising a fixing member for tightly fixing both edges of the first sheet to the bottom and side edges and the bottom and side walls of the main frame, respectively.

The main frame further includes a first flange protruding outwardly along the bottom and side edges, wherein the first buffer bar is interposed between the first flange and the bottom and sidewalls, and the fixing member of the first sheet A first guide frame superimposed thereon along the first flange with one edge interposed therebetween, and a plurality of first bolts passing through the first guide frame from the first flange and a plurality of first nuts fastened thereto; ; And a second guide frame overlapping the upper side along the bottom and the sidewall with the other edge of the first sheet interposed therebetween, and a plurality of screws for fixing the second guide frame to the bottom and the sidewall. .

In this case, at least two or more of the second flange protruding outwardly along the top of the main frame, respectively, is vertically connected to the upper and lower layers of the main frame to cover the seams between the upper and lower main frames. A second buffer bar of synthetic resin, wood or metal interposed between the first flange of the lower layer and the second flange of the lower mainframe; And a second sheet of synthetic resin covering the second buffer bar, wherein the fixing member is superimposed thereon along a first flange at the bottom of the upper mainframe with one edge of the second sheet interposed therebetween. Frame and a plurality of second bolts penetrating the third guide frame from the first flange, and a plurality of second nuts fastened thereto, and a second upper portion of the lower mainframe with the other edge of the second sheet interposed therebetween. And a fourth guide frame nested downwardly along the flange and a plurality of third bolts passing through the fourth guide frame from the second flange and a plurality of third nuts fastened thereto.

In another aspect, the present invention is a waterproofing method of the water barrier structure for the repair of the underwater construction to be installed upright from the bottom to be fixed to the side wall of the underwater construction including a breakwater, dam or embankment to define the working space of the atmosphere environment, a) Interposing a first buffer bar made of a material selected from synthetic resin, wood or metal to cover the seam between the structure and the bottom and sidewalls; b) having a first sheet of synthetic resin covering the first buffer bar, and then fixing one edge of the first sheet tightly along the bottom and side edges of the clapper structure, and fixing the other edge tightly along the bottom and sidewalls. It provides a waterproofing method of the water barrier structure for repairing the underwater construction, characterized in that it comprises a step of.

In this case, the cladding structures are each provided with at least two or more leading to the upper and lower plural layers so as to cover the seams between the upper and lower cladding structures before the step a) or after the step b). Intervening; Covering the second buffer bar with a second sheet of synthetic resin and then fixing one edge of the second sheet closely along the bottom of the upper clasp structure, and fixing the other edge closely along the top of the lower clap structure. It further comprises.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

Figure 2 is a perspective view of the water structure 100 for repair of the underwater construction according to the invention, Figure 3 is an exploded perspective view.

Referring to these drawings, the clamper structure 100 according to the present invention is erected from the bottom 2 to define the working space S of the atmospheric environment therein, and fixed along the sidewalls 4 of the underwater construction of the breakwater, dam or bank. It includes a main frame 102 that is installed, which is open on the bottom surface 2 and the top surface exposed to the air, respectively, open one side toward the underwater construction side wall (4) also open the end of both sides underwater It has an arc shape adhered along the structure side wall 4.

As shown in the figure, the bottom 2 and the side wall 4 are enclosed to form an inner working environment S, which is isolated from the underwater environment. The longitudinal section thereof may have a quadrangular shape as shown, but according to the purpose. Semicircles, triangles or more polygons can be formed, and as many different forms as possible to define the working environment S of the atmosphere inside, especially by standing upright from the bottom 2 along the sidewall 4 of the underwater construction. Can have

In addition, the mainframe 102 has a waterproof structure, which is a feature of the present invention, so that water does not flow into the mainframe 102, which is a seam between the main frame 102 and the bottom 2 and the side walls 4 of the underwater construction. A first buffer bar (110a) of the synthetic resin to cover, and the first sheet (120a) of the synthetic resin covering the outside of the main frame 102, the bottom 2 and the side wall (4), respectively.

More specifically, FIG. 4 is a cross-sectional view taken along the line AA ′ of FIG. 2, and FIG. 5A is an enlarged view of the circle B of FIG. 4 and will be described with reference to the same.

First, the first buffer bar 110a covers all the seam portions through which external water can flow, such as between the bottom and side ends of the main frame 102 and the bottom 2 and the side walls 4 of the underwater construction. As the first sheet 120a is covered, in particular, one edge of the first sheet 120a is tightly fixed along the bottom and side edges of the mainframe 102 and the other edge is the bottom 2 of the underwater construction. It is tightly fixed along the side wall 4.

Therefore, the water pressure applied from the outside is dispersed by the first buffer bar (110a) and at the same time is covered by the first seat 120a to cover the interior work space (S) of the main frame 102 is separated from the water in the water outside, To this end, the first buffer bar 110a may be made of wood or iron, but preferably synthetic resins such as foamed urethane, foamed polystyrene, foamed polypropylene, and synthetic rubber having a predetermined elasticity may be used. 120a may be a synthetic resin sheet of a waterproof material such as PVC, polyvinyl chloride, polypropylene, and the like.

That is, the first buffer bar (110a) and the first sheet (120a), which play the most important role of the waterproof structure according to the present invention, regardless of the material that can function as a buffer and waterproof, respectively, but the price and work In view of ease and the like, a synthetic resin that is light and easy to process is preferable, and the first sheet is used to disperse the water pressure by covering the joint portion where water can flow into the first buffer bar 110a, and at the same time, the water flowing into the gap therebetween. It has a structure covered by 120a.

Therefore, it effectively blocks external water pressure and enables reliable waterproofing.

In this case, a predetermined fixing member may be used to easily fix the first sheet 120a. As an example, the first flange 130a protrudes outwardly along the bottom and side edges of the main frame 102. The first guide frame 140a overlapped along the first flange 130a with one edge of the first sheet 120a interposed therebetween, and the bottom of the underwater construction with the other edge of the first sheet 120a interposed therebetween. And a second guide frame 140b which is superimposed along the side wall 4.

And fixing means for tightly binding the first flange (130a) and the first guide frame (140a), for example, one edge of the first sheet (120a) and the first guide frame (140a) from the first flange (130a) A plurality of first bolts 150a and a plurality of first nuts 152a fastened to each other, and the other edges of the first sheet 120a and the second guide frame 140b are formed at the bottom 2 of the underwater construction. ) And a number of screws 160 may be used for tight coupling to the side wall 4.

In this case, the plurality of screws 160 may be replaced with anchor bolts protruding from the bottom 2 and the side wall 4 of the underwater construction.

Therefore, by using these fixing members, the first sheet 120a can be closely bound to the respective portions.

At this time, the interval between each of the first bolt 150a and the screw 160 may be properly adjusted for reliable waterproofing, and a separate packing (not shown) made of a material such as rubber may be interposed for a more tight coupling. There is also.

On the other hand, the other clamshell structure according to the present invention is characterized in that it can have a prefabricated structure connected to the upper and lower plural layers to be variously applied to the repair position of the different depth, with respect to this in FIG. 4C This will be described with reference to FIG. 5B, which is an enlarged view of the inside drawing.

In this case, the main frame 102 may be provided in the upper and lower layers, respectively, and may be connected to a plurality of layers.

In particular, in addition to the first flange 130a protruding outward along the bottom edges of the upper and lower mainframes 102a and 102b, the second flange 130b may protrude outward along at least the upper edge of the lower mainframe 102b. Can be.

In addition, the third and fourth flanges 130c and 130d may protrude inwards along upper and lower ends of the upper and lower mainframes 102a and 102b to tightly fix the upper and lower mainframes 102a and 102b.

Therefore, when connecting the upper and lower mainframes (102a, 102b) up and down, the third and fourth flanges (130c, 130d) overlapping each other can be properly fastened by a bolt and a nut, etc., and can be connected in a solid structure up and down.

However, since water may flow into the seam portion between the upper and lower mainframes 102a and 102b, a waterproof structure is needed to prevent this, which may adopt a structure similar to that described above.

That is, a seam appears between the first flange 130a at the bottom of the upper mainframe 102a and the second flange 130b at the top of the lower mainframe 102b, respectively, between the upper and lower mainframes 102a and 102b. After the second buffer bar 110b of the synthetic resin is interposed between the first flange 130a and the second flange 130b of the upper and lower mainframes 102a and 102b, the outer surface thereof is formed by the second sheet 120b of the synthetic resin. By covering and fixing both edges of the second sheet (120b) along the lower edge of the upper main frame (102a) and the upper edge of the lower main frame (102b), it can be waterproof.

At this time, one edge of the second sheet 120b is positioned above the first flange 130a protruding outward to the lower end of the upper mainframe 102a in order to close and fix the second sheet 120b more conveniently. After covering 140c, at least one or more second bolts 150b sequentially passing through the edge of the first flange 130a, the second sheet 120b, and the third guide frame 140c, and the second fastened to the first flange 130a. The nut 152b may be tightly fixed, and the other edge of the second sheet 120b may be positioned at the bottom of the second flange 130b protruding outward to the top of the lower mainframe 102b and then along the bottom thereof. At least one third bolt 150c covering the guide frame 140d and sequentially passing through the other edge of the second flange 130b and the second sheet 120b and the fourth guide frame 140d and coupled thereto. Close contact with the third nut 152c Can.

In each of these cases, the distance between the second bolt 150b and the third bolt 150c may be appropriately selected for waterproofing as before, and a separate packing having elasticity such as rubber is interposed therebetween. Of course it can be.

Accordingly, the water barrier structure according to the present invention connects the at least one mainframe 102a or 102b to the upper and lower plural layers according to the repair position of the underwater construction, between the seams between them, and the bottom 2 and the sidewall 4 of the underwater construction. The first and second buffer bars 110a and 110b are interposed on the joints of the first and second sheets 120a and 120b, respectively, to cover and fix them.

At this time, the second buffer bar 110a and the second sheet 120b may also be made of the same material as the first buffer bar 110a and the first sheet 120a.

The water barrier structure according to the present invention described above can be waterproofed through the buffer bars (110a, 110b) and the sheets (120a, 120b) covering the seam, eventually showing the waterproof method used in the present invention in order It is summarized with reference to FIG. 6 which is a flowchart.

First, the present invention is an upright structure 100 which is installed upright from the bottom 2 of an underwater construction including a breakwater, a dam, or an embankment so as to define a working space S of the atmospheric environment therein, and fixedly installed along the sidewall 4. It provides a waterproof method, wherein the water barrier structure 100, as mentioned above, the upper surface exposed to the atmosphere and the lower surface to be seated on the bottom and one side toward the side wall 4 is open so that the end portions of both sides are open to the side wall. It may be made of an arc-shaped main frame 102 in close contact along (4). (St1)

Therefore, after obtaining the main frame 102 in water and seated in the position, it interposes the first buffer bar 110a of the synthetic resin to cover the seam between the bottom 2 and the side wall 4 of the underwater construction. st2)

Subsequently, a first sheet 120a of synthetic resin is covered and covered along the first buffer bar 110a, and one edge thereof is tightly fixed along the bottom and side edges of the main frame 102, and the other edge is bottom of the underwater construction. (2) and sidewalls (4) to be tightly fixed. (St3)

In this case, the first flange 130a may protrude outwardly along the bottom and side edges of the main frame 102 for easier operation. Therefore, the first shock absorbing bar 110a is underwater with the first flange 130a. It is interposed between the bottom 2 and the side wall 4 of the construction.

And one edge of the first sheet (120a) is seated on the first flange (130a) a plurality of first bolts (150a) and overlaps the first guide frame (140a) through all of them A plurality of first nuts 152a may be fastened to each other, and the other edge of the first sheet 120b may be seated on the bottom 2 and the side walls 4 of the underwater construction, and then the second guide frame may be disposed thereon. 140b) is superimposed and fixed using a plurality of screws 160.

At this time, more preferably, the main frame 102 may be provided with at least two or more connected to the upper and lower duplex, respectively, the upper and lower upper and lower layers of the upper and lower main frames 102a and 102b overlapping each other, Four flanges 130c and 130d protrude inwards and bind them to each other to connect them, and the second buffer bar of synthetic resin to cover the seams between the upper and lower mainframes 102a and 102b to prevent and seal the seams between them. Via 110b.

In this case, the second flange 130b may protrude outward along at least the upper edge of the lower main frame 102b for preventing the flow of the second buffer bar 110b and for fixing the second sheet 120b to be described later. As a result, the second buffer bar 110b is interposed between the first flange 130a at the lower end of the upper mainframe 102a and the second flange 130b at the upper end of the lower mainframe 102b.

After covering the second buffer bar 110b with the second sheet 120b of synthetic resin, one edge of the second sheet 120b is tightly fixed along the lower end of the upper mainframe 102a and the other edge is lower layer mainframe. 120b may be fixed along the upper end.

At this time, the third guide frame (140c) and all of them are superimposed along the first flange (130a) at the bottom of the upper mainframe (102a) with one edge thereof in between for fixing the second sheet (120b) A plurality of second bolts 150b penetrating therethrough and a plurality of second nuts 152b fastened thereto may be used, and likewise, an upper end of the lower main frame 102b with the other edge of the second sheet 120b interposed therebetween. A fourth guide frame (140d) that is nested below it along the second flange (130b) and a plurality of third bolts (150c) penetrating all of them and a plurality of third nuts (152c) fastened thereto. have.

The height can be adjusted, and after constructing a watertight structure 100 that can be completely waterproof, the internal water is discharged to form a working environment of the atmospheric environment.

And it is possible to repair and repair the side wall and the bottom of the underwater construction by introducing equipment and labor into the interior.

When the water barrier structure according to the present invention described above and the waterproofing method thereof are used, the flatness of the bottom and the sidewall of the underwater construction is extremely poor, so that even if a gap of 5 cm or more is generated, the waterproof bar can be reliably dispersed, and the buffer bar distributes the water pressure and the gap. Blocking the seat has the advantage of ensuring a safe work space.

In addition, the clamshell structure according to the present invention can be easily installed by fastening bolts / nuts using a guide frame overlapping the flanges in order to securely fix both edges of the seats, and thus, divers must take risks unlike the existing ones. There is no.

This makes it possible to implement a safe workspace by providing a simple and reliable waterproof.

Moreover, the clamshell structure according to the present invention can be variously connected to the upper and lower plural layers according to the height of the prefabricated structure, thus reducing the labor in the field and can be easily used in any environment.

Claims (5)

As a water barrier structure for repairing underwater structures fixedly installed on the side wall 4 of a breakwater, a dam, or an embankment so as to define a working space S of the atmospheric environment therein, An arc-shaped main frame 102 in which an upper surface exposed to the atmosphere and a lower surface seated on the bottom 2 and one surface facing the side wall 4 are opened so that end portions of both sides are closely adhered along the side wall 4; A first buffer bar 110a interposed between the bottom and side ends of the mainframe 102 and the bottom 2 and the side wall 4 and made of a material selected from synthetic resin, wood, or metal that covers the seam therebetween; A first sheet 120a of synthetic resin covering the first buffer bar 110a; Underwater construction, characterized in that it comprises a fixing member for tightly fixing the both side edges of the first sheet (120a) to the bottom and side edges of the main frame 102 and the bottom (2) and side walls (4), respectively Retaining structure for repair. The method of claim 1, The main frame 102 further includes a first flange 130a protruding outwardly along the bottom and side edges, so that the first shock absorbing bar 110a includes the first flange 130a and the bottom 2, and Interposed between the side walls 4, The fixing member has a first guide frame (140a) and the first guide frame (140a) is superimposed along the first flange (130a) with one edge of the first sheet (120a) in between the first flange (130a) A plurality of first bolts 150a passing through the first guide frame 140a and a plurality of first nuts 152a fastened thereto; The second guide frame (140b) and the second guide frame (140b) that overlaps the top along the bottom (2) and the side wall (4) with the other edge of the first sheet (120a) in between the bottom (2) and a water barrier structure for repairing the underwater construction, comprising a plurality of screws (160) fixed by the side wall (4). The method of claim 2, The main frame 102 is at least two or more in which the second flange 130b protrudes outwards along the upper end of each of the upper surface is vertically connected in multiple layers, Synthetic resin interposed between the first flange 130a at the bottom of the upper mainframe 102a and the second flange 130b at the top of the lower mainframe 102b so as to cover the seam between the upper and lower mainframes 102a and 102b. A second buffer bar 110b of wood or metal; The second sheet 120b of synthetic resin covering the second buffer bar 110b is further included, and the fixing member has a lower edge of the upper mainframe 102a with one edge of the second sheet 120b interposed therebetween. A third guide frame (140c) that is superimposed along the first flange (130a) and a plurality of second bolts (150b) through and through the third guide frame (140c) from the first flange (130a) and A plurality of second nuts 152b fastened therebetween and a fourth overlapped downwardly along a second flange 130b at the upper end of the lower main frame 102b with the other edge of the second sheet 120b interposed therebetween; A guide frame 140d and a plurality of third bolts 150c penetrating through the fourth guide frame 140d from the second flange 130b and a plurality of third nuts 152c fastened thereto. Cushion structure for repair of underwater construction. As a waterproofing method of the water barrier structure 100 for repairing an underwater construction, which is erected from the bottom 2 so as to define a working environment of the atmospheric environment therein and fixedly installed on the sidewall 4 of the underwater construction including a breakwater, a dam or a dike , a) interposing a first buffer bar (110a) made of one material selected from synthetic resin, wood, or metal so as to cover the seam between the water barrier structure (100) and the bottom (2) and the side wall (4); b) having a first sheet 120a of synthetic resin to cover the first buffer bar 110a, and fixing one edge of the first sheet 120a closely along the bottom and side edges of the clapper structure 100. And the other edges are tightly fixed along the bottom (2) and the sidewalls (4). The method of claim 4, wherein The cladding structure 100 is provided with at least two or more leading to the upper and lower plural layers, respectively, so as to cover the seams between the upper and lower cladding structures before the step a) or after the step b). Interposing the buffer bar (110b); After covering the second buffer bar 110b with a second sheet 120b of synthetic resin, one edge of the second sheet 120b is tightly fixed along the lower end of the upper cladding structure, and the other edge is lowered. Waterproofing method of the water barrier structure for repairing the underwater construction, further comprising the step of closely fixing the top of the water structure.