KR20060114664A - Apparatus for draining subsurface water - Google Patents

Abstract

An underground water drain system is provided to improve reliability by stably keeping the underground water level and draining underground water, and to connect a horizontal connection pipe easily by restricting damage of the horizontal connection pipe. An underground water drain system includes a drain unit(20) installed in a lower part of a base of a structure and provided with a porous pipe or a drain plate(21) for flowing underground water in, base concrete(300) poured on the drain unit, plural vertical connection pipes(52) penetrating the base concrete, plural vertical pipes(71,72) installed near a column wall(400) of the structure and extended below the stable underground water level, a first horizontal connection pipe connecting the vertical connection pipes, a second horizontal connection pipe(32) connecting the vertical connection pipes to the vertical pipes, a third horizontal connection pipe(33) connecting the vertical pipe to a water well, and protection concrete poured on the first, second and third horizontal connection pipes. The vertical pipe has a vertical inflow pipe(71a) connected to the second horizontal connection pipe, a vertical drain pipe(71b) connected to the third horizontal connection pipe, and a water connection part(90) communicating the vertical inflow pipe to the vertical drain pipe. The water connection part has a water tank having a passage connecting the vertical inflow pipe to an upper part of the vertical drain pipe, and an auxiliary pipe installed in an upper part of the water tank and communicated with the water tank.

Description

Groundwater drainage {Apparatus for draining subsurface water}

1 to 6 is a partial cutaway perspective view showing a state in which several embodiments of the groundwater drainage system according to the present invention is installed in the building structure,

FIG. 7 is a partially cutaway perspective view illustrating a water supply connection part applied to the groundwater drainage device illustrated in FIGS. 1 to 4;

8 and 9 is an exploded perspective view and a cross-sectional view showing an embodiment of a horizontal connector connecting device used in the groundwater drainage device according to the present invention;

10 is a cross-sectional view showing a state in which the connection device according to FIG. 9 is constructed;

11 is a partially cutaway perspective view showing another embodiment of the horizontal connector connecting device.

The present invention relates to groundwater drainage, and more particularly to groundwater drainage for releasing the positive pressure acting by groundwater in civil engineering or building structures that are constructed relatively lower than the groundwater level.

In general, when the final floor of the building structure is installed below the groundwater level, positive pressure (buoyancy) is generated by the space excluded by the building, that is, the groundwater head difference between the floor of the building structure and the basement outer wall of the building structure. This positive pressure acts as a repulsive force against the weight of the building, which may damage the building structure, so it is necessary to adjust the groundwater level.

In particular, when constructing a large-scale building such as an apartment, underground parking is mandatory in recent years, and the underground parking lot of an apartment is located in a lower zone due to the increasing number of vehicles and the desire to secure green space. The effect of positive pressure on buildings is growing. Permanent Anchor and Dewatering are used to prevent the positive pressure caused by variable groundwater level on building structures.

As an example of the drainage method, Korean Patent Registration No. 317530 discloses a positive pressure relief system for underground structures, and Utility Model No. 0195274 discloses a vertical drainage pipe for preventing buoyancy of underground buildings. The vertical buoyancy pipe for preventing buoyancy has a drainage hole formed at the bottom of the foundation slab, the filter pipe is connected through the drainage hole, and the inlet pipe is installed vertically, and the upper end portion of the inlet pipe is connected to the upper ground pipe level according to the usual groundwater level. Has a structure.

The buoyancy preventing drain pipe and the upper pipe is exposed to the outside is not aesthetically good, will interfere with the internal facilities, and maintenance is not easy.

Patent registration No. 0443640 discloses a system for installing a vertical drain pipe for preventing buoyancy of underground buildings. The disclosed drainage pipe installation system has a configuration in which the distance between the vertical drainage pipe and the vertical drainage pipe for discharging groundwater from the outside of the building is limited to prevent buoyancy of the underground building.

The present applicant is to reduce the positive pressure acting on the building structure and the drainage structure and construction method (active patent No. 0461920) and active drainage to prevent buoyancy accidents, and underground drainage structure (utility model registration No. 0271757), reduction The groundwater drainage device (registered patent No. 0601227) and the like having a generated overflow water generation point has been registered.

The present invention is a further improvement of the prior art, it is possible to improve the reliability according to the construction of the pipeline for maintaining the groundwater level below the design stability area, and to provide a groundwater drainage device that can improve the construction properties due to the discharge of groundwater Has its purpose.

Another object of the present invention is to prevent the vertical pipe for groundwater drainage to be exposed to the outside to improve the appearance, to prevent damage by external forces when installing the horizontal connector, easy to repair and repair, horizontal connection The groundwater drainage is very easy to connect the pipes.

Groundwater drainage device of the present invention for achieving the above object is installed in the lower part of the foundation of the building and having a drainage pipe or drainage plate through which the groundwater flows, the foundation concrete placed in the upper portion of the drainage, and the foundation concrete A plurality of vertical connectors installed to penetrate the plurality of pipes, a plurality of vertical tubes installed adjacent to a column or wall of the building and extending to or below the design stability level of the groundwater, and interconnecting the vertical connectors. A first horizontal connector, a second horizontal connector connecting the vertical connector and the vertical tube, a third horizontal connector connecting the vertical tube and the water collecting well, and an upper portion of the first, second and third horizontal connector Characterized in that provided with a protective concrete to be poured in.

At least one of the vertical pipes includes a vertical water inlet pipe connected to the second horizontal connection pipe, a vertical drain pipe connected to the third horizontal connection pipe, and a water flow connection part for mutually communicating the vertical water inlet pipe and the vertical drain pipe. Preferably, the water flow connecting portion is provided with a water supply tank having a passage connecting the upper end of the vertical water inlet pipe and the vertical water discharge pipe, and an auxiliary pipe installed on the water supply tank to communicate with the water supply tank.

As an alternative, the water flow connecting portion is composed of an inverted "U" shaped tube integrally coupled to the upper end of the vertical drainage pipe and the vertical plumbing pipe.

In addition, the vertical pipe is preferably installed in the groove provided in the pillar or wall of the building.

In addition, the sump well is further provided with an auxiliary vertical pipe extending below the groundwater design stability level, the vertical pipe is preferably extended to the groundwater design stability level.

In addition, further comprising a connecting device for interconnecting the first, second, and third horizontal connecting pipes, the connecting device is made of PVC, has a sealed space therein, the connection hole is coupled to the horizontal connection pipe on the side A main body having a rectangular shape formed thereon, and a protective upper plate made of stainless material coupled to an upper surface of the main body, wherein the main body is formed with a plurality of first hollow support portions penetrating the upper and lower surfaces thereof and having an upper and lower portions open; It is preferable that a second hollow support is formed in the hollow support and the upper and lower parts are opened.

Hereinafter, a preferred embodiment of the groundwater drainage apparatus according to the present invention with reference to the accompanying drawings in detail as follows.

1 shows an embodiment of the groundwater drainage apparatus according to the present invention. Referring to the drawings, the groundwater drainage device is installed in the lower part of the foundation concrete 300 installed in the basement on which the building structure is installed, and has a drainage part 20 having a hole or drainage plate 21 through which groundwater flows. . On the upper portion of the drain 20, the foundation concrete 300 is poured. Of course, when the foundation concrete 300 is placed, the upper and lower reinforcement may be buried.

A plurality of vertical connecting pipes 52 are installed at predetermined intervals through the foundation concrete 300. One end of the vertical connecting pipe 52 is connected to the drainage part 20, and the other end of the vertical connecting pipe 52 is connected to the horizontal connecting pipe 31.

In addition, a plurality of vertical pipes 71 and 72 are installed in the column wall 400 of the building. The vertical pipe is divided into a first vertical pipe 71 extending below the design stability level of the groundwater and a second vertical pipe 72 extending to the design stability level of the groundwater. That is, the height of the 1st vertical pipe 71 and the height of the 2nd vertical pipe 72 will have a difference of "(D) H". The first vertical pipe includes a plurality of vertical inlet pipes 71a and a plurality of vertical drain pipes 71b. The second vertical pipe includes only a plurality of vertical water inlet pipes 72a. The vertical inlet pipe (71a) (72a) is connected to the second horizontal connecting pipe 32, which will be described later, the vertical drainage pipe (71b) is connected to the third horizontal connecting pipe (33) described below to obtain the ground water ( 310).

As shown in Figure 7, the water inlet connection portion 90 is provided with the vertical inlet pipe (71a) and the vertical drainage pipe (71b) in communication with each other. The water supply connection portion 90 is a water supply tank 91 having a passage connecting the upper ends of the vertical inlet pipe (71a) and the vertical drainage pipe (71b), and is installed in the upper portion of the water tank (91) passage of the water tank It consists of an auxiliary pipe (92) in communication with. It is preferable that the height of the auxiliary pipe 92 is set to be substantially equal to ΔH.

In addition, the first and second vertical pipes 71 and 72 are embedded in the groove 400a provided in the pillar or wall 400 of the building, thereby facilitating construction and making the appearance of the building more beautiful. Can save installation space.

 The horizontal connector is a first horizontal connector 31 interconnecting the vertical connectors 52, a second connecting the vertical connector 52 and the first, second vertical pipes 71, 72 It consists of a horizontal connecting pipe 32 and a third horizontal connecting pipe 33 for connecting the first vertical pipe 71 and the sump well 310. The connecting device for interconnecting the first, second and third horizontal connecting pipes 31, 32 and 33 will be described later. In the illustrated embodiment, the horizontal connection pipe has a circular cross section and three are installed side by side, but the present invention is not limited thereto, and those skilled in the art can form different shapes or sizes of cross sections according to design conditions or construction conditions, and the number of installations. Of course it can be different.

Finally, the protective concrete 320 is placed on the first, second, and third horizontal connecting pipes 31, 32, 33 to complete the groundwater drainage device according to the present embodiment.

In the groundwater drainage device according to the present embodiment configured as described above, the groundwater is normally drained to the drainage part 20 and the vertical connection pipes 52, first and second in the construction structure. It flows through the horizontal connection pipes 31 and 32 and the vertical pipes 71 and 72. However, during the rainy season, the groundwater flowing over the vertical inlet pipe 71a of the first vertical pipe 71 having a relatively low height passes through the vertical connection pipe 91 and the vertical drain pipe 71b and the third horizontal connecting pipe 33. Drain through the sump (310). Therefore, the groundwater level around the building structure is always kept below the design stability level. In addition, the overflowed groundwater flows to the sump through the horizontal connection pipe so that it is not exposed to the surface of the basement floor of the building.

In addition, since the horizontal connection pipe is installed on the upper portion of the concrete, it is possible to fundamentally solve the problem that the conventional horizontal connection pipe is derived from the installation of the interior concrete. That is, due to the use of a vibrator when placing the foundation concrete can prevent the pre-installed horizontal connection pipe is broken and separated. In addition, if the vertical pipe is missing during construction, or if the vertical pipe must be replaced or repaired by the management of the vertical pipe, the work becomes very easy. In addition, when the construction period and construction cost is shortened compared to the conventional construction reliability is significantly improved.

On the other hand, the embodiment shown in Figure 2 was installed in the vertical plumb pipe 41 perpendicular to the extension pipe 22 extending to the sump (310). The height of the auxiliary vertical pipe 41 is extended to a height below the water level in the groundwater design. In this case, the first vertical pipe 71 has a height difference between the auxiliary vertical pipe 41 and "ΔH1", and the second vertical pipe 72 extending to a position substantially equal to the design stability level is the first vertical pipe ( Compared with 71), it can be designed to have a height difference of "ΔH2".

When the auxiliary plumbing pipe having a relatively lower height than that of the first and second plumbing pipes is installed as in the present embodiment, as the groundwater level is increased, the secondary plumbing pipe is first discharged to the sump through the auxiliary plumbing pipe. Groundwater can be discharged to the sump through the first plumbing pipe and the second plumbing pipe step by step, so the groundwater level can be lowered below the design stability within a short time.

3 and 4 show another embodiment of the groundwater drainage apparatus according to the present invention.

In comparison with the embodiment shown in FIG. 1, the groundwater drainage device of the embodiment shown in FIG. 3 has a vertical inlet pipe 72a and a vertical drain pipe as well as the first vertical pipe 71 as well as the second vertical pipe 72. It consists of 72b. In the embodiment shown in FIG. 3, the first vertical pipe 71 and the second vertical pipe 72 may be designed so that a height difference does not occur. In this case, the groundwater flowing over the second vertical pipe 72 flows into the first vertical pipe through the second horizontal connecting pipe and the first horizontal connecting pipe, and then the third horizontal connecting pipe with the groundwater flowing over the first vertical pipe. The sump is drained through.

The drainage device of the embodiment shown in Fig. 4 is further provided with an auxiliary vertical pipe 41 perpendicular to the extension pipe extending to the sump. In this case, it is preferable that the auxiliary vertical pipe and the first and second vertical pipes have a height difference of "ΔH".

Components not described above in the groundwater drainage device of the embodiment of Figs. 3 and 4 are the same as the embodiment shown in Figs. 1 and 2, so that the same reference numerals are used and detailed description thereof will be omitted.

5 and 6 show another embodiment of the groundwater drainage apparatus according to the present invention.

In the groundwater drainage device of the embodiment shown in FIG. 5, the water flow connection portions 91 and 92 which interconnect the vertical inlet pipes 71a and 72a of the first and second vertical pipes and the vertical drainage pipes 71b and 71b are interconnected. It consists of an inverted "U" shaped tube integrally coupled to the upper end of the vertical drainage pipe and the vertical inlet pipe.

The drainage device of the embodiment shown in Fig. 6 is further provided with an auxiliary vertical pipe 41 perpendicular to the extension pipe extending to the sump. In this case, the height of the auxiliary vertical pipe is preferably installed to be lower by "ΔH" than the height of the water supply connection parts 91 and 92 of the first and second vertical pipes 71 and 72.

Components not described above in the groundwater drainage device of the embodiment of FIGS. 5 and 6 are the same as the embodiment shown in FIGS. 1 to 4, so that the same reference numerals are used and detailed description thereof will be omitted.

Hereinafter, the connecting device 80 for interconnecting the first, second and third horizontal connectors will be described.

The connecting device 80 shown in FIGS. 8 to 10 is for connecting the horizontal connecting pipes 31, 32, 33 to each other and includes a main body 81 and a protective upper plate 82.

The main body 81 has a rectangular shape made of PVC. An airtight space portion is formed inside the main body 81. Both sides of the main body 81 are formed with a connection hole 81a to which a plurality of horizontal connecting pipes 31, 32, 33 are coupled, respectively. The main body 81 is provided with a first hollow support portion 81b formed to penetrate the upper and lower surfaces. The upper and lower portions of the first hollow support 81b are open.

The protective top plate 82 is made of stainless material and is coupled to the top surface of the main body 81. The lower surface of the protective upper plate 82 is formed to a size that can be fitted to the first hollow support portion 81b of the main body, and a second hollow support portion 82b having an upper and lower portion is formed. Although not shown, it is of course also possible to allow the second hollow support to fit inside the first hollow support.

When the protective concrete is poured on the upper portion of the horizontal connection pipe connecting device 80, the concrete 320a is immersed in the cylindrical first and second hollow support portions having the upper and lower portions open, thereby resisting long-term load. To increase the function. In addition, the upper protection top plate 82 performs a function of supporting a work load, etc., which is difficult to predict when placing large treats. To this end, it is preferable that the lower end of the second hollow support is positioned at the upper end of the building foundation through the first hollow support so that the length of the second hollow support can be received by the second hollow support. Here, the number and the installation position of the first and second hollow pillars can be variously changed.

11 shows an embodiment in which the vertical connecting pipe 52 is connected to the lower part of the horizontal connecting pipe connecting device 80. In contrast to the embodiment shown in FIGS. 8 to 10, the connecting device of the present embodiment has a through hole for connecting the vertical connection pipe 52 to the bottom of the main body. In addition, four first hollow support portions 81b penetrating the upper and lower surfaces of the main body 81 are formed at edges at which the second vertical connecting pipes 52 are not disposed. The second hollow support portion 81b formed on the lower surface of the protective upper plate 82 coupled to the upper surface of the main body 81 is also formed at the edge. Components not described above in the connection device of the present embodiment are the same as the embodiment shown in Figs. 8 to 10, the same reference numerals are used and detailed description thereof will be omitted.

As described above, the groundwater that overflows the groundwater drainage vertical pipe according to the present invention is drained into the sump by the first, second, and third horizontal connecting pipes, so that the groundwater is not exposed to the floor surface of the building. In addition, since the vertical pipe is embedded in the pillars or walls of the building, it is easy to construct, enhances the appearance of the building, and saves installation space. Since the horizontal connector is installed on the upper surface of the foundation concrete and the horizontal connector is connected by the connecting device, the construction is easy and the damage of the horizontal connector can be prevented at the time of construction. In particular, by installing the horizontal connector on the upper surface of the foundation concrete, it is possible to fundamentally prevent the damage of the horizontal connector during construction, and to install the vertical connectors, horizontal connectors and vertical tubes installed on the foundation concrete and connected to the drainage part. These connections can be made on the upper surface of the foundation concrete, so maintenance and maintenance are extremely easy due to construction errors. In addition, it is easy to connect the vertical pipe to the horizontal connector irrespective of the installation position of the vertical pipe. In addition, compared with the prior art in which the horizontal connection pipe is installed inside the foundation concrete, the present invention can increase the strength by preventing the reduction of the cross-sectional coefficient of the foundation concrete.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (6)

A drainage part installed under the foundation of the building and having a perforated pipe or drainage plate through which groundwater flows; A foundation concrete placed on an upper portion of the drain portion; A plurality of vertical connecting pipes installed through the foundation concrete; A plurality of vertical pipes installed adjacent to the pillar or wall of the building and extending to or below the design stability level of the groundwater; A first horizontal connector connecting the vertical connectors, a second horizontal connector connecting the vertical connectors and the vertical tubes, and a third horizontal connector connecting the vertical tubes and the sump; Groundwater drainage, characterized in that the protective concrete is placed on top of the first, second, third horizontal connection pipe. The method of claim 1, At least one of the vertical pipes includes a vertical water inlet pipe connected to the second horizontal connection pipe, a vertical drain pipe connected to the third horizontal connection pipe, and a water flow connection part for mutually communicating the vertical water inlet pipe and the vertical drain pipe. , The water supply connection portion is groundwater drainage device characterized in that it comprises a water supply tank having a passage connecting the upper end of the vertical inlet pipe and the collection and drainage pipe, and an auxiliary pipe which is installed in the upper portion of the water supply tank and communicates with the water supply tank. According to claim 1, At least one of the vertical pipes includes a vertical water inlet pipe connected to the second horizontal connection pipe, a vertical drain pipe connected to the third horizontal connection pipe, and a water flow connection part for mutually communicating the vertical water inlet pipe and the vertical drain pipe. , The water supply connection portion is ground water drainage, characterized in that the inverted "U" shaped pipe integrally coupled to the upper end of the vertical inlet pipe and the vertical drainage pipe The method of claim 1, The vertical pipe is groundwater drainage, characterized in that the buried in the groove provided in the pillar or wall of the building. The method of claim 1, The water collecting well is further provided with an auxiliary vertical pipe extending below the groundwater design stability level, the vertical pipe is groundwater drainage, characterized in that extending to a position to the groundwater design stability level. The method of claim 1, Further comprising a connecting device for interconnecting the first, second, third horizontal connectors, The connecting device, It is made of PVC, has a sealed space inside, and the main body of the rectangular shape formed with a connection hole is coupled to the horizontal connector on the side, It is provided with a protective top plate of stainless material coupled to the upper surface of the main body, The main body has a plurality of first hollow support portion penetrating the upper and lower surfaces and the upper and lower portions are opened A groundwater drainage device, characterized in that the lower surface of the protective upper plate is provided with a second hollow support which is inserted into the hollow support and the upper and lower portions.

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