KR20230031770A - Sump pit construction method - Google Patents

Abstract

The present invention relates to a collection well construction method. Since the collection well of the present invention is made of an FRP material, the same has a light weight and can be easily installed. In addition, strength can be improved through a vertical reinforcing member and a horizontal reinforcing member. According to the present invention, after being manufactured separately as a lower collection well and an upper collection well, the lower collection well disposed at a lower part is manufactured in a common standard. Then, capacity can be varied by changing a height of the upper collection well disposed thereon. The collection well includes: a bottom plate (110); a side plate (120); a top plate (130): and a side reinforcing member (170).

Description

Collection well construction method {Sump pit construction method}

The present invention relates to a construction method for a collecting well made of FRP material.

In general, collection wells are used to collect groundwater, rainwater, etc. from the edge of roads, basement floors of buildings such as apartment complexes, and underground pits.

In general, for the construction of civil engineering and construction underground structures, the ground is excavated to a certain depth, and a concrete foundation structure, which is the construction reference surface, is established on the ground (floor surface) where the excavation is completed, and then a civil engineering or building structure is constructed based on this foundation structure. will build

However, when the final floor of civil engineering and underground structures is installed below the groundwater level, energy is generated to restore the lowered groundwater level to the surrounding water level due to the difference in water head between the floor of the underground structure and the surrounding area of the building, and this energy acts as an uplift pressure on underground structures, and in severe cases, this lift pressure not only lifts or tilts underground structures to one side, but also causes cracks in foundation structures, which can cause damage to civil and architectural structures. It will have a fatal adverse effect on safety.

To prevent this, a collection pipe is usually installed under the basic structure to guide the groundwater to a collection well buried underground, and then the groundwater collected in the collection well is forcibly discharged to the outside using a pump to reduce the lifting pressure.

Since such a collecting well must be lower than the lowest slab of a building, in order to construct the collecting well, a separate excavation and reinforced concrete work for forming the collecting well are required, making the construction difficult and time-consuming.

In particular, since the collecting well is buried under the slab of the lowest floor of the building and constructed, very high rigidity is required to secure the stability of the structure, so it takes more effort and cost than is required for the construction of a general reinforced concrete structure.

Conventional collection wells, as part of the lowest slab, must satisfy both the structural purpose of satisfying bearing capacity and the functional purpose of collecting groundwater or rainwater and discharging it to the outside at the same time. It is formed as a reinforced concrete structure with the same thickness as the slab layer thickness.

That is, in the conventional collecting well, when constructing the bottom slab of the lowest floor of the structure, a separate hole is excavated so that the collecting well is buried below the slab, a formwork for the side wall of the collecting well is installed, concrete is poured to form the collecting well, and then Additional concrete pouring (commonly known as discarded concrete) or soil burial is performed around the sump.

Since these collecting wells are installed under the lowest floor of the structure, it is not easy to excavate a separate trench, and it is very difficult to perform reinforced concrete work because a lot of groundwater is collected in the excavated hole.

Therefore, there is a problem in that not only does the work time according to the construction of the collecting well take excessively, but also the construction quality is not satisfactory.

In addition, other complicated configurations such as a volleyball pipe to be connected to a conventional collecting well are difficult to install in thick reinforced concrete, and there are problems in that performance is deteriorated and post-correction is very difficult.

Republic of Korea Patent No. 10-1451379 Republic of Korea Patent No. 10-1625902 Republic of Korea Patent No. 10-1318957 Republic of Korea Patent No. 10-2252905 Republic of Korea Patent No. 10-1034611

An object of the present invention is to provide a collection well construction method that is easy to install, can selectively increase capacity, and has high structural reliability.

The present invention bottom plate 110 mounted on the upper side of the abandoned concrete; a side plate 120 coupled to an upper side of the bottom plate 110 and providing a side surface; A top plate 130 coupled to the upper side of the side plate 120 and providing an upper side: a side reinforcing member 170 disposed on the side plate 120; excavating the; Forming abandoned concrete 11 by pouring concrete on the excavated ground (S10); Installing a collecting well base 300 supporting the bottom plate 110 on the upper surface of the discarded concrete 11 (S20); Disposing the collecting well made of FRP material on the upper side of the collecting well base 300 (S30); Installing the side reinforcing member 170 so that the side reinforcing member 170 penetrates the horizontal reinforcing member 160 of the collecting well (S40); Forming foundation concrete 12 by pouring concrete on the upper side of the discarded concrete 11 and the outside of the sump so that the side reinforcing member 170 is buried (S50); After the foundation concrete 12 is cured, forming a grating 13 on the upper side of the foundation concrete 12 (S60); including, the side plate 120, the first side wall 121 , It includes a second side wall 122, a third side wall 123 and a fourth side wall 124, and the first side wall 121 is disposed on the upper side and integral with the top plate 130. a 1-1 sidewall 121a formed of; and 1-2 sidewalls 121b disposed on the lower side and integrally formed with the bottom plate 110, wherein the second sidewall 122 is disposed on the upper side and integrally formed with the top plate 130. a 2-1 sidewall 122a formed of; and a 2-2 sidewall 122b disposed on the lower side and integrally formed with the bottom plate 110, wherein the third sidewall 123 is disposed on the upper side and integrally formed with the top plate 130. formed 3-1 sidewalls 123a; and a 3-2 sidewall 123b disposed on the lower side and integrally formed with the bottom plate 110, wherein the fourth sidewall 124 is disposed on the upper side and integrally formed with the top plate 130. a 4-1 sidewall 124a formed of; and a 4-2 sidewall 124b disposed on the lower side and integrally formed with the bottom plate 110, wherein the 1-1 sidewall 121a, the 2-1 sidewall 122a, and the third -1 side wall (123a) and the first coupling flange 180 extending to protrude outward from each lower end of the 4-1 side wall (124a), the 1-2 side wall (121b), the 2-2 It further includes a second coupling flange 190 extending to protrude outward from each upper end of the sidewall 122b, the 3-2nd sidewall 123b and the 4-2nd sidewall 124b, and the first The coupling flange 180 and the second coupling flange 190 are in close contact in the vertical direction, and the step S20 is a step of arranging a lower base 310 on the upper surface of the discarded concrete 11 (S21); Disposing a support frame 330 on the upper side of the lower base 310 (S22); Stacking a plurality of first upper bases 321 and second upper bases 322 spaced apart in the horizontal direction with the support frame 330 therebetween on the upper side of the lower base 310 (S23); Including, in the step S30, the lower collection correction 101 is placed on the upper side of the first upper base 321 and the second upper base 322, and the lower collection correction 101 is placed on the upper base 320 Combining (S32); After the step S32, mounting the fitting frame 200 on the upper side of the lower collection fix 101 (S34); After the step S34, passing through the upper house correction 102 (S36); After the step S36, the insert 230 is inserted into the insert slit 226 of the fitting frame 200 to fix the positions of the lower collection correction 101 and the upper collection correction 102 (S38); It provides a construction method for a collection well comprising a.

First, since the present invention is made of FRP material, it is light in weight and easy to install, and the strength can be improved through a vertical reinforcing member and a horizontal reinforcing member. There is an advantage in that the capacity can be varied by changing the height of the upper collector well disposed on the upper part after the lower collector well disposed in the lower part is manufactured in a common standard.

Second, the present invention has the advantage of improving assembly and sealing performance through the first coupling flange of the upper collector and the second coupling flange of the lower collector.

Third, the present invention has the advantage of being able to further improve airtight performance through a fitting frame inserted between the first coupling flange and the second coupling flange and preventing damage to the first coupling flange and the second coupling flange. .

Fourth, in the present invention, a waterproof coating step (S14) of forming a waterproof coating 14 is disposed between steps S10 and S20, and the waterproof coating 14 suppresses ground subsidence by minimizing leakage of groundwater to the outside. There are advantages to doing so.

Fifth, since the present invention binds the side reinforcing member to the reinforcing bars of the foundation concrete, it has the advantage of firmly supporting the side plate of the sump.

Sixth, the present invention has the advantage of improving the assembly convenience of the lower collector and the upper collector because the positions of the lower collector and the upper collector can be aligned through the insert.

Seventh, in the present invention, after the lower collector and the upper collector are closely attached to the fitting frame through the pressing member, the side reinforcing member is sequentially penetrated through the coupling flanges and the horizontal reinforcing member. Since it is installed, the airtightness can be further improved It has the advantage of maximizing the structural reliability of the side plate inside.

1 is a perspective view of a collecting well according to a first embodiment of the present invention.
2 is a front cross-sectional view of the collecting well shown in FIG. 1;
3 is a plan cross-sectional view of the collecting well shown in FIG. 1;
4 is an enlarged view showing an installation structure of the insert shown in FIG. 1;
5 is a front cross-sectional view showing an installation structure of the pressing member shown in FIG. 1;
6 is a flow chart showing the installation method of the collecting well according to the first embodiment of the present invention.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to completely inform the person who has the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

1 is a perspective view of a collecting well according to a first embodiment of the present invention, FIG. 2 is a front sectional view of the collecting well shown in FIG. 1, FIG. 3 is a plan view of the collecting well shown in FIG. 1, and FIG. 4 is an enlarged view showing the installation structure of the insert shown in FIG. 1, and FIG. 5 is a front cross-sectional view showing the installation structure of the pressing member shown in FIG.

The collecting well according to the present embodiment is made of a fiber reinforced plastics (FRP) material, which is a plastic composite material reinforced with fibers.

FRP is an abbreviation for fiber-reinforced plastic-based composite material, and has excellent mechanical properties, corrosion resistance of plastics, and excellent moldability. Recently, with the development of new reinforcing materials, a wider range of applications is being sought.

Typical examples thereof include glass-unsaturated polyester and carbon epoxy, but there are also fiber reinforced thermo-plastics (FRTPs) using thermoplastics as a matrix.

In a narrow sense, FRP can be regarded as a plastic-based composite material in which a thermosetting plastic is matrixed.

The specific gravity of FRP is about 2.0, which is about 1/4 of that of steel materials, and in the case of FRP reinforced with carbon fiber (CF), the specific gravity is about 1.5, which is lighter and has excellent mechanical properties.

The collecting well according to the present embodiment includes a bottom plate 110 mounted on the upper side of the discarded concrete 11, a side plate 120 coupled to the upper side of the bottom plate 110 and providing a side surface, and the side plate 110. It is coupled to the upper side of the plate 120 and includes a top plate 130 providing an upper side.

Foundation concrete 12 may be poured on the upper side of the discarded concrete 11 and the outer side of the side plate 120. In this embodiment, the foundation concrete 12 is poured only to the extent that the top plate 130 is not locked. The top plate 130 exposed upward is embedded in the grating 13 disposed above the foundation concrete 12.

A bottom opening 111 through which groundwater flows may be formed on at least one of the bottom plate 110 or side plate 120, and through the bottom opening 111, groundwater may flow into the collecting well. can

A top opening surface 131 may be formed on the top plate 130 . A pump for pumping water inside the collecting well may be installed inside the collecting well or installed outside the collecting well.

When the pump is installed outside the collecting well, a pipe (not shown) connected to the pump through the top opening 131 is installed. When a pump is installed inside the collecting well, water pumped from the pump is pumped out through the top opening 131 .

The bottom plate 110 has a flat shape and is installed horizontally.

In this embodiment, the top plate 130 and the bottom plate 110 are formed in the same shape and area.

In this embodiment, since the overall shape of the collecting well is a rectangular parallelepiped, the side plate 120 has four side surfaces. Unlike the present embodiment, when the collecting well is cylindrical, the side plate 120 is formed in a cylindrical shape.

The side plate 120 includes a first side wall 121 , a second side wall 122 , a third side wall 123 , and a fourth side wall 124 .

The one disposed on the front side is the first sidewall 121, the one disposed on the left side is the second sidewall 122, the one disposed on the rear side is the third sidewall 123, and the one disposed on the right side is the fourth sidewall ( 124).

The first sidewall 121 , the second sidewall 122 , the third sidewall 123 , and the fourth sidewall 124 are disposed inside the edge 110a of the bottom plate 110 .

So, the edge 110a of the bottom plate 110 and the first sidewall 121, the second sidewall 122, the third sidewall 123, and the fourth sidewall 124 are separated by a first separation distance ( D1) form.

Similarly, the edge 130a of the top plate 130, the first sidewall 121, the second sidewall 122, the third sidewall 123, and the fourth sidewall 124 also have a first separation distance. (D1) is formed.

An inlet frame 140 protruding upward from the edge of the top opening surface 131 may be further disposed.

The inlet frame 140 includes a first inlet wall 141 , a second inlet wall 142 , a third inlet wall 143 and a fourth inlet wall 144 .

The collecting well further includes a strength reinforcing member for reinforcing strength.

The strength reinforcing member includes a vertical reinforcing member 150 disposed in a vertical direction and a horizontal reinforcing member 160 disposed in a horizontal direction.

The vertical reinforcing member 150 is disposed in a vertical direction, has a lower end coupled to the bottom plate 110, and an upper end coupled to the top plate 130.

The vertical reinforcing member 150 includes a first vertical reinforcing part 151 coupled to the first sidewall 121 and disposed to protrude outward and extending in the vertical direction, and the second sidewall 122 A second vertical reinforcement part 152 coupled to and protruding outward and extending in the vertical direction, and a third vertical reinforcement part 152 coupled to the third sidewall 123 and protruding outward and extending in the vertical direction ( 153), and a fourth vertical reinforcement part 154 coupled to the fourth sidewall 124, protruding outward, and extending vertically.

In this embodiment, the first vertical reinforcement part 151, the second vertical reinforcement part 152, the third vertical reinforcement part 153, and the fourth vertical reinforcement part 154 are spaced apart in the left-right direction and are disposed in two places.

The horizontal reinforcing member 160 is disposed in the middle of the bottom plate 110 and the top plate 130, and the first side wall 121, the second side wall 122, and the third side wall 123 and a fourth sidewall 124.

The horizontal reinforcing member 160 includes a first horizontal reinforcing part 161 coupled to the first sidewall 121 and disposed to protrude outward and extending in a horizontal direction, and the second sidewall 122 A second horizontal reinforcement part 162 coupled to and disposed to protrude outward and extending in a horizontal direction, and a third horizontal reinforcement part 162 coupled to the third sidewall 123 and protruding outward and extending in a horizontal direction. It includes a portion 163 and a fourth horizontal reinforcing portion 164 coupled to the fourth sidewall 124, protruding outward, and extending in a horizontal direction.

The first horizontal reinforcement part 161, the second horizontal reinforcement part 162, the third horizontal reinforcement part 163, and the fourth horizontal reinforcement part 164 are integrally connected and disposed horizontally.

A through hole 165 penetrating the horizontal reinforcing member 160 in a vertical direction may be further disposed. The through hole 165 may be respectively disposed in the first horizontal reinforcement part 161 , the second horizontal reinforcement part 162 , the third horizontal reinforcement part 163 , and the fourth horizontal reinforcement part 164 .

If it is necessary to distinguish the through hole 165, the one disposed in the first horizontal reinforcement part 161 is referred to as the first through hole, and the one disposed in the second horizontal reinforcement part 162 is referred to as the second through hole. 3 The one disposed in the horizontal reinforcement part 163 is referred to as the third through hole, and the one disposed in the fourth horizontal reinforcement part 164 is referred to as the fourth through hole.

A side reinforcing member 170 (rebar in this embodiment) may be disposed to vertically penetrate the through hole 165. When it is necessary to distinguish the side reinforcing member 170, the one disposed to pass through the first through hole is referred to as the first side reinforcing member, the one disposed to pass through the second through hole is referred to as the second side reinforcing member, and the third horizontal Those disposed to pass through the reinforcing portion 163 are referred to as third side reinforcing members, and those disposed to pass through the fourth horizontal reinforcing portion 164 are referred to as fourth side reinforcing members.

The side reinforcing member 170 is buried when the foundation concrete 12 is poured.

Each side reinforcing member 170 may be disposed to pass through each of the through holes 165 .

The side reinforcing member 170 includes a vertical portion 172 disposed vertically through the through hole 165 and a horizontal portion formed by bending an upper side of the vertical portion 172 and disposed in a horizontal direction. (174).

The horizontal portion 174 is disposed above the horizontal reinforcing member 160, and is specifically disposed at a height between the horizontal reinforcing member 160 and the top plate 130.

The side reinforcing member 170 is embedded in the concrete poured into the foundation of the building.

Since the side reinforcing member 170 is installed through the through hole 165, it can support the side of the collecting well and prevent it from being pushed inward by the pressure of the concrete during concrete pouring.

On the other hand, the collecting well according to this embodiment has the feature of being assembled after being manufactured by separating the upper and lower parts. Since the capacity of the collecting well varies depending on the size of the building and the capacity of groundwater, in this embodiment, the lower part is manufactured in a common standard, and only the upper part is manufactured by changing the height according to the capacity, and then assembled.

The collecting well according to the present embodiment is composed of a lower collecting well 101 of a common standard and an upper collecting well 102 capable of varying capacity, and has the advantage of being able to manufacture various capacities.

Therefore, in the collecting well according to the present embodiment, the first sidewall 121, the second sidewall 122, the third sidewall 123, and the fourth sidewall 124 are vertically separated.

The first sidewall 121 includes a 1-1 sidewall 121a disposed on an upper side and a 1-2nd sidewall 121b disposed on a lower side.

The second sidewall 122 includes a 2-1st sidewall 122a disposed on the upper side and a 2-2nd sidewall 122b disposed on the lower side.

The third sidewall 123 includes a 3-1 sidewall 123a disposed on the upper side and a 3-2nd sidewall 123b disposed on the lower side.

The fourth sidewall 124 includes a 4-1 sidewall 124a disposed on the upper side and a 4-2 sidewall 124b disposed on the lower side.

The top plate 130 is connected to the upper ends of the 1-1st sidewall 121a, the 2-1st sidewall 122a, the 3-1st sidewall 123a, and the 4-1st sidewall 124a. 1-1 sidewall 121a, the 2-1st sidewall 122a, the 3-1st sidewall 123a, and the 4-1st sidewall 124a protrude outward from the upper ends.

The upper collection correction 102 includes each of the 1-1 sidewall 121a, the 2-1st sidewall 122a, the 3-1st sidewall 123a and the 4-1st sidewall 124a. It includes a first coupling flange 180 extending to protrude outward from the lower end.

The lower collection well 101 is the top of each of the 1-2 sidewall 121b, the 2-2nd sidewall 122b, the 3-2nd sidewall 123b and the 4-2nd sidewall 124b It further includes a second coupling flange 190 extending to protrude outward from.

The strength of the side plate 120 of the collecting well can be improved by the first coupling flange 180 and the second coupling flange 190 . A sealing member (not shown) may be disposed between the first coupling flange 180 and the second coupling flange 190 to form an airtight seal.

The first coupling flange 180 and the second coupling flange 190 are disposed to face each other in the vertical direction. Flange holes are formed in the first coupling flange 180 and the second coupling flange 190, respectively.

The one formed in the first coupling flange 180 is called a first flange hole 185, and the one formed in the second coupling flange 190 is called a second flange hole 195.

The vertical portion 172 of the side reinforcing member 170 is disposed to pass through the first flange hole 185 and the second flange hole 195 .

In this embodiment, the side reinforcing member 170 replaces the role of a coupling member for coupling the first coupling flange 180 and the second coupling flange 190, thereby reducing the number of assembly parts and simplifying the assembly process. can be simplified

In addition, fastening members 191 and 192 passing through the first flange hole 185 and the second flange hole 195 may be further disposed.

The fastening members 191 and 192 may form a seal by bringing the first flange hole 185 and the second flange hole 195 into close contact.

In this embodiment, bolts and nuts are used as the fastening members 191 and 192.

Preferably, the fastening members 191 and 192 are respectively disposed on the first sidewall 121, the second sidewall 122, the third sidewall 123, and the fourth sidewall 124. .

In addition, in the collecting well according to this embodiment, the fitting frame 200 is further disposed between the first coupling flange 180 and the second coupling flange 190.

The 1-1st sidewall 121a, the 2-1st sidewall 122a, the 3-1st sidewall 123a, and the 4-1st sidewall 124a may be referred to as the upper sidewall 120a. .

In addition, the 1-2nd sidewall 121b, the 2-2nd sidewall 122b, the 3-2nd sidewall 123b and the 4-2nd sidewall 124b are referred to as the lower sidewall 120b. can

The fitting frame 200 extends by protruding outward from the inner wall 210 and the inner wall 210 in close contact with the inner surface of the upper side wall 120a and the inner surface of the lower side wall 120b, It includes an insert wall 220 sandwiched between the first coupling flange 180 and the second coupling flange 190 and in close contact with each other.

The front end of the fitting frame 200 fitted to the first coupling flange 180 and the second coupling flange 190 may have a "A" or "q" shape.

The inner wall 210 is disposed inside the side frame 120 .

A sealing member (not shown) may be further disposed between the inner wall 210 and the side frame 120 .

The insert wall 220 is disposed between the first coupling flange 180 and the second coupling flange 190 . A sealing member (not shown) may be further disposed between the insert wall 220 and the first coupling flange 180 . In addition, a sealing member (not shown) may be further disposed between the insert wall 220 and the second coupling flange 190 .

The inner wall 210 and the insert wall 220 are orthogonally disposed.

In this embodiment, the fitting frame 200 may be formed of an elastic material, and the whole is integrally manufactured.

The inner wall 210 of the fitting frame 200 is in close contact with the inner surfaces of the upper side wall 120a and the lower side wall 120b to prevent water inside the collecting well from leaking to the outside.

The insert wall 220 of the fitting frame 200 is sandwiched and compressed between the first coupling flange 180 and the second coupling flange 190, thereby preventing water inside the collecting well from leaking to the outside.

The vertical portion 172 of the side reinforcing member 170 is disposed to pass through the first coupling flange 180, the insert wall 220 and the second coupling flange 190 in turn, through which the fitting frame 200 ) can be prevented from being pushed inward or moved from the correct position.

Even if the entire contact surfaces of the first coupling flange 180 and the second coupling flange 190 do not maintain complete contact, the insert wall 220 of the fitting frame 200 is formed by the weight of the concrete and the upper part of the sump. This has the advantage of being able to seal between the first coupling flange 180 and the second coupling flange 190.

In addition, in the collecting well according to the present embodiment, the insert wall 220 protrudes out of the first coupling flange 180 and the second coupling flange 190 and penetrates the insert wall 220 in the vertical direction to collect the first coupling flange 220. The coupling flange 180 and the second coupling flange 190 and the insert 230 forming a mutually engaging further includes.

The insert wall 220 includes a fitting insert portion 222 disposed between the first coupling flange 180 and the second coupling flange 190, and the first coupling flange 180 in the fitting insert portion 222. ) And an exposed insert portion 224 extending to the outside of the second coupling flange 190 and exposed to the outside, and an insert slit 226 penetrating the exposed insert portion 224 in a vertical direction.

The insert 230 passes through the insert slit 226 and is fitted with the exposed insert portion 224 . The insert 230 may have a wedge shape with a pointed lower side, a lower portion protrudes downward from the insert wall 220, and an upper portion interlocking with the exposed insert portion 224 in the downward direction.

Since the insert slit 226 is disposed outside the edges of the first coupling flange 180 and the second coupling flange 190, the inserted insert 230 is the first coupling flange 180 and the second coupling flange 230. It forms mutual engagement with the flange 190 in the horizontal direction.

Through this structure, the insert 230 blocks the movement of the insert wall 220 into the collecting well.

When viewed from a top view, in this embodiment, the exposed insert part 224 and the insert 230 are arranged on the same line as the second vertical reinforcement part 152, and the insert 230 is the vertical reinforcement part 150 Even with the vortex, they form mutual locking in the horizontal direction.

When viewed from the side, since the insert 230 is simultaneously supported by the "+" shaped vertical reinforcement part 150 and the coupling flanges 180 and 190, mutual engagement of the inserts 230 is more firmly established. can be maintained

In addition, unlike the third embodiment, the collecting well according to the present embodiment is arranged to pass through the first coupling flange 180, the through hole 225 of the insert wall 220, and the second coupling flange 190 in order. Fastening members 191 and 192 are further included.

In addition, the collecting well further includes a pressing member 250 that presses the first coupling flange 180 and the second coupling flange 190 toward the insert wall 220 . The pressing member 250 is made of a metal material.

The pressing member 250 is formed in a "c" shape.

The pressing member 250 includes a first pressing part 252 in close contact with the upper surface of the first coupling flange 180 and a second pressing part 254 in close contact with the lower surface of the second coupling flange 190. ) and a pressing connection part 256 connecting the first pressing part 252 and the second pressing part 254.

The pressure connection part 256 is in close contact with the outer edges of the first coupling flange 180 and the second coupling flange 190 .

The fastening members 191 and 192 pass through the first pressing portion 252, the first coupling flange 180, the insert wall 220, the second coupling flange 190, and the second pressing portion 254 in order. and provides a direct operating force to the first pressing part 252 and the second pressing part 254 to bring the insert wall 220 into close contact.

A first pressing hole 252a is formed in the first pressing part 252 and a second pressing hole 254a is formed in the second pressing part 254 .

The first pressing hole 252a, the first flange hole 185, the through hole 225 of the insert 220, the second flange hole 195, and the second pressing hole 254a are arranged in a row in the vertical direction. and the fastening member 191 sequentially passes through the holes.

Since the fastening members 191 and 192 provide force to the pressing member 250 made of metal, crushing or damage to the first coupling flange 180 and the second coupling flange 190 made of FRP material is minimized. It can be done, it is possible to improve the sealing force through the fitting frame (200).

6 is a flow chart showing the installation method of the collecting well according to the first embodiment of the present invention.

Referring to FIG. 6, the installation method of the collecting well according to the first embodiment includes excavating the ground, pouring concrete on the excavated ground to form dumped concrete 11 (S10), and Installing a collecting well base 300 supporting the collecting well on the upper side of the dumped concrete (S20), arranging a collecting well made of FRP on the upper side of the collecting well base 300 (S30), and the side reinforcement Installing the side reinforcing member 170 so that the member 170 penetrates the horizontal reinforcing member 160 of the collecting well (S40), and the dumped concrete 11 so that the side reinforcing member 170 is buried Forming the foundation concrete 12 by pouring concrete on the upper side and the outside of the collecting well (S50), and after the foundation concrete 12 is cured, forming the grating 13 on the upper side of the foundation concrete 12 It includes the step of doing (S60).

A waterproof coating step (S14) of forming the waterproof coating 14 may be further disposed between the steps S10 and S20. The step S14 is preferably performed after curing the discarded concrete 11 of the step S10.

When the waterproof coating 14 is formed on the upper side of the dumped concrete 11, it is possible to block the flow of groundwater to the lower side of the dumped concrete 11, and the groundwater can be effectively collected in the collecting well.

In addition, the waterproof coating 14 can suppress ground subsidence by minimizing leakage of groundwater to the outside.

The step S20 is the step of arranging the lower base 310 on the upper side of the cast concrete 11 (S21) and the step of arranging the support frame 330 on the upper side of the lower base 310 (S22) , Stacking a plurality of first upper bases 321 and second upper bases 322 spaced apart in the horizontal direction with the support frame 330 therebetween on the upper side of the lower base 310 (S23) include

The lower base 310, the support frame 330, the first upper base 321 and the second upper base 322 may be made of a metal material.

The first upper base 321 and the second upper base 322 are referred to as an upper base 320 . The upper base 320 may be a plate having a larger area than the bottom plate 110 , and a base opening surface wider than the bottom opening surface 111 may be formed.

The step S21 may be performed before the waterproof coating 14 is cured in the step S14.

When the steps S14 and S21 are continuously performed, the lower base 310 may be coupled to the waterproof coating, and through this, the lower base 310 may be fixed in place.

The support frame 330 disposed in step S22 is for supporting the lower side of the bottom opening 111 of the collecting well.

The support frame 330 may be welded and fixed to the upper side of the lower base 310 . The support frame 330 may have a rod or pipe shape. The interval between the support frames 330 is such that the bottom opening 111 is wider than the interval, and the support frames 330 are not exposed through the bottom opening 111 .

In step S23 , the first upper base 321 and the second upper base 322 may be welded and fixed to the upper side of the lower base 310 .

At least two support frames 330 are disposed between the inner end 321a of the first upper base 321 and the inner end 322a of the second upper base 322 .

Among the support frames 330, the one disposed on the side of the first upper base 321 is referred to as the first support frame 331, and the one disposed on the side of the second upper base 322 is referred to as the second support frame 332. .

The distance between the first support frame 331 and the inner end 321a of the first upper base 321 and the distance between the second support frame 332 and the inner end 322a of the second upper base 322 Intervals may be formed equally.

In the step S22, the first support frame 331 and the second support frame 332 are connected to the inner end 321a of the first upper base 321 and the inner end 322a of the second upper base 322. It can be arranged at equal intervals in between.

The bottom opening surface 111 may be spaced apart from the upper side surface of the lower base 310 by the first support frame 331 and the second support frame 332 and disposed on the upper side.

In the step S30, after the step (S32) of mounting the lower collector 101 on the upper side of the upper base 320 and coupling the lower collector 101 to the upper base 320 (S32), , Step (S34) of mounting the fitting frame 200 on the upper side of the lower collector 101, and after the step S34, the step of mounting the upper collector 102 (S36), and after the step S36 In this step, the insert 230 is inserted into the insert slit 226 of the fitting frame 200 to fix the positions of the lower collection correction 101 and the upper collection correction 102 (S38).

By inserting the insert 230 into the insert slit 226 in step S38, it is possible to prevent the lower collector 101 and the upper collector 102 from moving in the left and right directions.

In addition, by inserting the insert 230 into the insert slit 226 in the step S38, the inner wall 210 of the fitting frame 200 is fixed to the inner wall of the lower house 101 and the upper house 102 Since this is in close contact, there is an advantage in that the positions of the lower collector 101 and the upper collector 102 can be easily aligned.

Meanwhile, in the step S30, after the step S36, the second coupling flange 190 of the lower collector 101 and the first coupling flange 180 of the upper collector 102 are inserted into the insert wall 220 A step of assembling the pressing member 250 for pressing to the side (S39) may be further included.

Either step S38 or step S39 may be executed first, and in this embodiment, step S39 is executed after step S38.

If step S39 is performed first, it may be difficult to insert the insert 230 because the insert slit 226 is not exposed to the outside.

In this embodiment, the positions of the lower house correction 101 and the upper house correction 102 are first aligned by executing step S38, and the positions of the lower house correction 101 and upper collection correction 102 are executed by executing step S39. fix the

The collecting well can be fixed to an external structure through the side reinforcing member 170 in step S40.

After fixing the lower collecting well 101 and the upper collecting well 102 through the steps S38 and S39, the vertical part 172 of the side reinforcing member 170 is penetrated in the vertical direction to assemble into the collecting well.

In the step S40, a step (S401) of fixing the horizontal portion 174 of the side reinforcing member 170 to the reinforcing bar 175 disposed outside the collecting well may be further included.

After the step S30 and between the steps S40, the reinforcing bar 175 may be installed outside the lower collecting well 101 and the upper collecting well 102, and in the step S40, the side reinforcing member 170 is attached to the reinforcing bar ( 175) can be fixed.

In step S50, concrete is poured to form the foundation concrete 12. During concrete pouring in step S50, since the reinforcing bars 175 and the side reinforcing member 170 are buried together and cured, the lower collector 101 and the upper collector 102 can be firmly supported.

The height of the foundation concrete 12 in step S50 is lower than the top plate 130.

In step S60, the grating 13 embeds the upper side of the foundation concrete 12, and specifically, the top plate 130 and the inlet frame 140 are also buried.

Through the step S60, only the top opening surface 131 is exposed to the outside.

Those skilled in the art to which the present invention pertains will understand that the present invention can be embodied in other specific forms without changing its technical spirit or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. The scope of the present invention is indicated by the claims to be described later rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts thereof are included in the scope of the present invention. should be interpreted

110: bottom plate 120: side plate
130: top plate 140: entrance frame
150: vertical reinforcing member 160: horizontal reinforcing member
170: side reinforcing member 180: first coupling flange
190: second coupling flange 200: fitting frame
210: inner wall 220: insert wall
230: insert

Claims (1)

Bottom plate 110 mounted on the upper side of the abandoned concrete; a side plate 120 coupled to an upper side of the bottom plate 110 and providing a side surface; In the construction method of a collecting well including a top plate 130 coupled to the upper side of the side plate 120 and providing an upper side: a side reinforcing member 170 disposed on the side plate 120,
excavating the ground;
Forming abandoned concrete 11 by pouring concrete on the excavated ground (S10);
Installing a collecting well base 300 supporting the bottom plate 110 on the upper surface of the discarded concrete 11 (S20);
Disposing the collecting well made of FRP material on the upper side of the collecting well base 300 (S30);
Installing the side reinforcing member 170 so that the side reinforcing member 170 penetrates the horizontal reinforcing member 160 of the collecting well (S40);
Forming foundation concrete 12 by pouring concrete on the upper side of the discarded concrete 11 and the outside of the sump so that the side reinforcing member 170 is buried (S50);
After the foundation concrete 12 is cured, forming a grating 13 on the upper side of the foundation concrete 12 (S60); including,
The side plate 120 includes a first side wall 121, a second side wall 122, a third side wall 123 and a fourth side wall 124,
The first sidewall 121 may include a 1-1 sidewall 121a disposed on an upper side and integrally formed with the top plate 130; and 1-2 sidewalls 121b disposed on the lower side and integrally formed with the bottom plate 110,
The second sidewall 122 may include a 2-1 sidewall 122a disposed on an upper side and integrally formed with the top plate 130; and a 2-2 sidewall 122b disposed on the lower side and integrally formed with the bottom plate 110,
The third sidewall 123 includes a 3-1 sidewall 123a disposed on an upper side and integrally formed with the top plate 130; and a 3-2 sidewall 123b disposed on the lower side and integrally formed with the bottom plate 110,
The fourth sidewall 124 includes a 4-1 sidewall 124a disposed on an upper side and integrally formed with the top plate 130; and a 4-2 sidewall 124b disposed on the lower side and integrally formed with the bottom plate 110,
The 1-1st sidewall 121a, the 2-1st sidewall 122a, the 3-1st sidewall 123a, and the 4-1st sidewall 124a extend to protrude outward from each lower end. Each of the first coupling flange 180, the 1-2 sidewall 121b, the 2-2 sidewall 122b, the 3-2 sidewall 123b and the 4-2 sidewall 124b Further comprising a second coupling flange 190 extending to protrude outward from the top,
The first coupling flange 180 and the second coupling flange 190 are in close contact in the vertical direction,
In step S20,
Placing a lower base 310 on the upper side of the discarded concrete 11 (S21);
Disposing a support frame 330 on the upper side of the lower base 310 (S22);
Stacking a plurality of first upper bases 321 and second upper bases 322 spaced apart in the horizontal direction with the support frame 330 therebetween on the upper side of the lower base 310 (S23); include,
In the step S30,
Mounting the lower collecting well 101 on the upper side of the first upper base 321 and the second upper base 322 and coupling the lower collecting well 101 to the upper base 320 (S32);
After the step S32, mounting the fitting frame 200 on the upper side of the lower collection fix 101 (S34);
After the step S34, passing through the upper house correction 102 (S36);
After the step S36, the insert 230 is inserted into the insert slit 226 of the fitting frame 200 to fix the positions of the lower collection correction 101 and the upper collection correction 102 (S38); Construction method of a collection well comprising a.

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