Apparatus for draining subsurface water

Abstract

The present invention relates to a groundwater drainage device, wherein the connection structure of horizontal connecting pipes extending horizontally toward the vertical pipe section for groundwater discharge is improved to allow groundwater to flow more smoothly and to prevent condensation from forming on the floor surface of a parking lot or basement.

Description

Technology Field

[0001] The present invention relates to a groundwater drainage device, wherein the connection structure of horizontal connecting pipes extending horizontally toward the vertical pipe section for groundwater discharge is improved to allow groundwater to flow more smoothly and to prevent condensation from forming on the floor surface of a parking lot or basement. Background Technology

[0002] Generally, when the final floor of a building structure is installed below the groundwater level, uplift pressure (buoyancy) is generated due to the difference in groundwater head between the space excluded by the building—specifically, between the floor and the underground outer wall. Since this uplift pressure acts as a counterweight to the building's own weight and can cause damage to the structure, it is necessary to regulate the groundwater level.

[0003] In particular, when constructing large-scale buildings such as apartment complexes, underground parking lots have recently become legally mandatory. Furthermore, due to the increasing trend of vehicle ownership among residents and their desire for green spaces, underground parking lots are being located at lower elevations, thereby increasing the impact of uplift pressure caused by groundwater on the buildings. To prevent uplift pressure resulting from fluctuations in groundwater levels from affecting building structures, permanent anchors and dewatering methods are being used.

[0004] As an example of a drainage method, Korean Patent Registration No. 0317530 discloses a system for relieving positive pressure in underground structures, and Registered Utility Model No. 0195274 discloses a vertical drain pipe for preventing buoyancy in underground buildings. The disclosed vertical drain pipe for preventing buoyancy has a structure in which a drain hole is formed in the floor of the foundation slab, a filter pipe is connected through the drain hole and an inlet pipe is installed vertically, and an upper pipe connected to the upper part of the inlet pipe is connected to match the normal groundwater level.

[0005] These buoyancy prevention drain pipes and upper pipes are exposed to the outside, which is aesthetically unpleasing, interferes with internal facilities, and is difficult to maintain.

[0006] Patent Registration No. 0443640 discloses an installation system for a vertical drain pipe for preventing buoyancy in underground buildings. The disclosed drain pipe installation system has a configuration that limits the distance of the vertical drain pipe for discharging groundwater from the outside of the building and the distance from the vertical drain pipe in order to prevent buoyancy in an underground building.

[0007] The applicant has developed and registered a drainage structure and method having active natural drainage to prevent buoyancy accidents in order to relieve uplift pressure acting on a building structure (Registered Patent No. 0461920), an underground drainage structure (Registered Utility Model No. 0271757), and a groundwater drainage device having a reduced overflow occurrence site (Registered Patent No. 0601227).

[0008] In addition, the applicant has developed and registered a groundwater drainage device (Registered Patent Publication No. 10-0710920) capable of improving reliability in pipeline construction for maintaining the groundwater level below the design stability range and constructability in groundwater discharge.

[0009] The above groundwater drainage device comprises a drainage section installed at the bottom of the foundation of a building and equipped with a perforated pipe or drainage plate into which groundwater flows, foundation concrete poured on top of the drainage section, a plurality of vertical connecting pipes installed through the foundation concrete, a plurality of vertical pipes installed adjacent to a column or wall of the building and extending to or below the design stable water level of groundwater, a first horizontal connecting pipe connecting the vertical connecting pipes, a second horizontal connecting pipe connecting the vertical connecting pipes and the vertical pipes, a third horizontal connecting pipe connecting the vertical pipes and a sump, and protective concrete poured on top of the first, second, and third horizontal connecting pipes.

[0010] A group of horizontal connecting pipes extending parallel to each other are connected at an angle or perpendicularly to another group of horizontal connecting pipes extending parallel to each other, depending on the installation location or the size and shape of the area of ​​the building's foundation base between the foundation concrete and the protective concrete.

[0011] Generally, horizontal connecting pipes that intersect or are orthogonal to each other are joined one-to-one, but this cumbersome construction process leads to increased labor costs and delays in work time.

[0012] In addition, when horizontal connecting pipes of one group are connected in a one-to-one cross pattern, there is a disadvantage in that localized uplift pressure increases due to poor groundwater flow. Prior art literature

[0013] Republic of Korea Registered Patent Publication No. 10-0710920: Groundwater Drainage Device The problem to be solved

[0014] The present invention aims to provide a groundwater drainage device that further improves upon the aforementioned prior art, thereby preventing condensation on the upper protective concrete forming the floor surface of a parking lot or a basement, and improving constructability and drainage performance by improving the connection structure of horizontal connecting pipes extending horizontally toward the vertical pipe section for groundwater discharge, and preventing an increase in uplift pressure. means of solving the problem

[0015] The groundwater drainage device of the present invention for achieving the above objective is characterized by comprising: a drainage section installed below the foundation concrete of a building and including a perforated pipe or drainage plate into which groundwater flows; a plurality of vertical connecting pipes that vertically penetrate the foundation concrete from the drainage section and are spaced apart at a predetermined interval; a plurality of vertical pipe sections installed adjacent to a column or wall of the building and extending to or below the design stable groundwater level; a horizontal connecting unit including a plurality of horizontal connecting pipes that extend horizontally above the foundation concrete and are extended to connect the vertical connecting pipes or to connect the vertical connecting pipes and the vertical pipe sections; and a condensation prevention means that prevents the horizontal connecting pipes from coming into contact with the foundation concrete and the upper protective concrete poured on top of the horizontal connecting pipes.

[0016] It is preferable that the above horizontal connecting unit further comprises a first horizontal connecting member connecting horizontal connecting pipes arranged in a 'T' shape; a second horizontal connecting member connecting horizontal connecting pipes arranged in a cross shape; and a third horizontal connecting member connecting the horizontal connecting pipes arranged in an 'L' shape.

[0017] Specifically, the first horizontal connecting member transmits groundwater flowing in one group of horizontal connecting pipes extended parallel to one direction to another group of horizontal connecting pipes extended parallel to the one direction, and to another group of multiple horizontal connecting pipes extended in a left or right direction orthogonal to the one direction, and preferably comprises: a main connecting pipe extending in a direction orthogonal to the longitudinal direction of the horizontal connecting pipes of one group and the other group between the one group and the other group to connect the one group and the other group; and a branch pipe extending in the longitudinal direction of the horizontal connecting pipes of one group and the other group to connect the ends of the horizontal connecting pipes of the other group, with one end or the other end of the main connecting pipe connected to one side.

[0018] The second horizontal connecting member may be configured to transfer groundwater flowing through the horizontal connecting pipes of the first group, which are extended parallel to one direction, to the horizontal connecting pipes of the second group, which are extended parallel to the one direction, and to a plurality of the horizontal connecting pipes of the third and fourth groups, which are extended in a left or right direction, respectively, perpendicular to the one direction, and may include: a main connecting pipe that extends in a direction perpendicular to the longitudinal direction of the horizontal connecting pipes of the first and second groups between the first and second groups to connect the horizontal connecting pipes of the first group and the horizontal connecting pipes of the second group; and a pair of branch pipes that extend in the longitudinal direction of the horizontal connecting pipes of the first and second groups to connect the ends of the horizontal connecting pipes of the third or fourth group, with one end or the other end of the main connecting pipe respectively connected to one side.

[0019] The above-described third horizontal connecting member transmits groundwater flowing in the horizontal connecting pipes extended parallel to one direction to other horizontal connecting pipes extended to the left or right that intersect the one direction. It is preferable to have a first extension pipe that is formed in a pipe shape to connect the ends of the horizontal connecting pipes extended parallel to one direction and to allow groundwater transported to the horizontal connecting pipes to flow inward, with one end in the longitudinal direction closed and the other end open, and a second extension pipe that is extended to connect the ends of other horizontal connecting pipes extended to the left or right that intersect the one direction, with one end in the longitudinal direction connected to the other end of the first extension pipe to transmit groundwater flowing into the first extension pipe to other horizontal connecting pipes.

[0020] The above horizontal connecting unit may further comprise a fourth horizontal connecting member that connects the above vertical connecting pipe and a plurality of groups of the above horizontal connecting pipes.

[0021] The above condensation prevention means comprises a condensation prevention plate including a main body portion of the condensation prevention plate arranged on the upper surface of the foundation concrete and covered by the upper protective concrete, and a plurality of condensation prevention protrusions protruding downward from the main body portion of the condensation prevention plate and supported on the upper surface of the foundation concrete; and it is preferable that the horizontal connecting pipe is installed so as not to come into contact with the main body portion of the condensation prevention plate so as not to cause condensation to occur on the upper surface of the upper protective concrete.

[0022] Alternatively, the above condensation prevention means may include a condensation-preventing insulation material that surrounds the horizontal connecting pipe embedded in the upper protective concrete. Effects of the invention

[0023] The groundwater drainage device of the present invention, through the first, second, third, fourth, and fifth horizontal connecting members, allows for easy connection in various forms depending on the installation location of the first, second, and third horizontal connecting pipes installed on the upper surface of the foundation concrete, or the area size or shape of the building, and the joint connection structure between the first, second, or third horizontal connecting pipes connected to each other is simple, thereby improving constructability.

[0024] In addition, the groundwater drainage device according to the present invention has the advantage of preventing an increase in positive pressure caused by localized groundwater stagnation by ensuring smooth groundwater flow through first to fifth horizontal connecting members capable of integrally connecting a plurality of first, second, or third horizontal connecting pipes.

[0025] In addition, the groundwater drainage device according to the present invention has the advantage of enabling smoother drainage by allowing groundwater to move through other first, second, or third horizontal connecting pipes even if any one of the first, second, or third horizontal connecting pipes is blocked or groundwater stagnation occurs, through the first, second, third, fourth, and fifth horizontal connecting members.

[0026] In the groundwater drainage device according to the present invention, the first, second, and third horizontal connecting pipes do not come into direct contact with the foundation concrete and the upper protective concrete, so the efficiency of preventing condensation can be further improved. Brief explanation of the drawing

[0027] FIG. 1 is a partial perspective view of a groundwater drainage device according to one embodiment of the present invention, and FIG. 2 is an enlarged perspective view of the portion in which the horizontal connecting pipes of the groundwater drainage device of FIG. 1 are connected by a first horizontal connecting member, and FIG. 3 is an enlarged perspective view of the portion in which the horizontal connecting pipes of the groundwater drainage device of FIG. 1 are connected by a second horizontal connecting member, and FIG. 4 is an enlarged perspective view of the portion in which the horizontal connecting pipes of the groundwater drainage device of FIG. 1 are connected by a third horizontal connecting member, and FIG. 5 is a drawing illustrating the state in which the vertical connecting pipe of the groundwater drainage device of FIG. 1 is connected to the horizontal connecting pipes by the fourth horizontal connecting member, and FIG. 6 is a drawing illustrating the state in which the vertical connecting pipe of the groundwater drainage device of FIG. 1 is connected to the horizontal connecting pipes by the fifth horizontal connecting member, and FIG. 7 is a partial perspective view showing the side of the condensation prevention plate and condensation prevention member installed between the foundation concrete and the upper protective concrete of the groundwater drainage device of FIG. 1, and FIG. 8 is a cross-sectional view of the groundwater drainage device of FIG. 5 cut parallel to the extension direction of the horizontal connecting pipes, and FIG. 9 is a cross-sectional view of the groundwater drainage device of FIG. 5, cut by the horizontal connecting pipes in a direction perpendicular to the extension direction, and FIG. 10 is a partial perspective view of a filter clogging management unit of the groundwater drainage device of FIG. 1, and FIG. 11 is a partial side cross-sectional view of the filter clogging management unit side of the groundwater drainage device of FIG. 10, and FIG. 12 is a drawing illustrating a state in which horizontal connecting pipes are connected by a first horizontal connecting member according to another embodiment of the present invention, and FIG. 13 is a cross-sectional view of a groundwater drainage device according to another embodiment of the present invention, in which horizontal connecting pipes are cut in a direction perpendicular to the extension direction. Specific details for implementing the invention

[0028] Hereinafter, a groundwater drainage device according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0029] FIGS. 1 to 11 illustrate a groundwater drainage device (10) according to one embodiment of the present invention.

[0030] A drainage section (20) including a perforated pipe (not shown) or a drainage plate (21) installed below the foundation concrete (300) of a building and into which groundwater flows; a plurality of vertical connecting pipes (32) that vertically penetrate the foundation concrete (300) from the drainage section (20) and are spaced apart at a predetermined interval; a plurality of vertical pipe sections (71, 77) installed adjacent to the column or wall (400) of the building and extending to the design stable water level of groundwater or below; and a horizontal connecting unit (40) including a plurality of horizontal connecting pipes (51, 52, 53) that extend horizontally above the foundation concrete (300) and are extended to connect the vertical connecting pipes (32) or to connect the vertical connecting pipes (32) and the vertical pipe sections (71, 77); A condensation prevention means (90) is provided to prevent the horizontal connecting pipes (51, 52, 53) from coming into contact with the upper protective concrete (350) poured on the upper part of the horizontal connecting pipes (51, 52, 53) and the upper part of the foundation concrete (300).

[0031] Foundation concrete (300) is poured on the upper part of the drainage section (20).

[0032] Of course, when pouring the foundation concrete (300), the upper reinforcement and lower reinforcement can be embedded.

[0033] A plurality of vertical connecting pipes (32) are installed at predetermined intervals through the foundation concrete (300). The lower end of the vertical connecting pipe (32) is connected to the drainage section (20), and the upper end of the vertical connecting pipe (32) is connected to the horizontal connecting pipes (51, 52, 53).

[0034] In addition, multiple vertical pipe sections (71) (77) are installed in the column walls (400) of the building.

[0035] Multiple vertical pipe sections are divided into a first vertical pipe section (71) that extends below the design stable water level of groundwater and a second vertical pipe section (77) that extends up to the design stable water level of groundwater.

[0036] That is, the height of the first vertical pipe section (71) and the height of the second vertical pipe section (72) will have a difference of “△H”.

[0037] The first vertical pipe section (71) is equipped with a plurality of vertical inlet pipes (72), a plurality of vertical drain pipes (73), and a water flow connection section (74) connecting the vertical inlet pipes (72) and the vertical drain pipes (73).

[0038] The water supply connection part (74) consists of a water supply tank (75) having a passage connecting the upper ends of the vertical inlet pipe (72) and the vertical drain pipe (73), and an auxiliary pipe (76) installed on the upper part of the water supply tank (75) and communicating with the passage of the water supply tank.

[0039] The second vertical pipe section (77) is equipped with only a plurality of vertical inlet pipes (78).

[0040] The vertical inlet pipe (72)(78) is connected to the horizontal connecting pipe (51) extending from the vertical connecting pipe (32), and the vertical drain pipe (73) is connected to the horizontal connecting pipe (51) extending to the sump (310).

[0041] It is desirable to set the height of the auxiliary tube (76) to be substantially the same as △H.

[0042] In addition, the first and second vertical pipes (71) (77) are installed by being embedded in a groove (400a) provided in a column or wall (400) of the building, thereby facilitating construction, making the exterior of the building more aesthetically pleasing, and saving installation space.

[0043] Meanwhile, a plurality of horizontal connecting pipes (51, 52, 53) can be divided into a first horizontal connecting pipe (51) that interconnects the vertical connecting pipes (32), a second horizontal connecting pipe (52) that connects the vertical connecting pipe (32) and the first and second vertical pipe sections (71) (77), and a third horizontal connecting pipe (53) that connects the first vertical pipe section (71) and the water collection well (310).

[0044] A connecting device for interconnecting the first, second, and third horizontal connecting pipes (51), (52), and (53) will be described later. In the illustrated embodiment, three horizontal connecting pipes are installed side by side with circular cross-sections, but the present invention is not limited thereto, and it is obvious that a person skilled in the art can form the shape or size of the cross-section differently and the number of installations can be different depending on design or construction conditions.

[0045] The horizontal connection unit (40) comprises: a plurality of connection tanks (41) mounted on the top of each vertical connection pipe (32) and connected to a first or second horizontal connection pipe (51, 52); a plurality of first horizontal connection members (56) connecting the first or second horizontal connection pipes (51, 52) arranged in a 'T' shape; a plurality of second horizontal connection members (61) connecting the first or second horizontal connection pipes (51, 52) arranged in a cross shape; and a third horizontal connection member (66) connecting the first, second, or third horizontal connection pipes (51, 52, 53) arranged in an 'L' shape.

[0046] The horizontal connecting unit (40) may be equipped with only one or two of the first horizontal connecting member (56), the second horizontal connecting member (61), and the third horizontal connecting member (66), depending on the area size and shape of the building.

[0047] Referring to FIG. 1, the first horizontal connecting pipes (51) are arranged in a cross shape or a 'T' shape and are connected to the first horizontal connecting member (56) and the second horizontal connecting member (61).

[0048] However, unlike what is described, the first horizontal connecting pipes (51) may be arranged in an 'L' shape on the foundation concrete (300) of the building, depending on the installation location, area size, or shape of the building, and connected to the third horizontal connecting member (66) to connect the vertical connecting pipes (32).

[0049] Additionally, the second horizontal connecting pipes (52) extend from the connecting tank (41) to the first or second vertical pipe section (71, 77), but as shown in FIG. 2, they may also extend to the first or second vertical pipe section (71, 77) by connecting a first horizontal connecting member (56) that connects different groups of first horizontal connecting pipes (51) in parallel.

[0050] The connecting tank (41) consists of a main body (42) and a protective top plate (43).

[0051] The main body (42) is preferably made of PVC and has a rectangular shape having an internal space that is sealed but communicates with the vertical connecting pipe (32). On the side of the main body (42), a connecting hole (42a) is formed to which a plurality of first or second horizontal connecting pipes (51)(52) are connected.

[0052] The connecting hole (42a) is formed on each side of the main body (42) or on each of the three sides excluding only one side, but unlike what is shown, it may be formed on only one side or both sides depending on the connection direction of the first and second horizontal connecting pipes (51, 52).

[0053] And, the main body (42) is provided with a first hollow support member (42b) formed to penetrate the upper and lower surfaces. The upper and lower parts of the first hollow support member (42b) are open.

[0054] The protective top plate (43) is made of stainless steel and covers the top of the main body (42).

[0055] On the lower surface of the protective top plate (43), a second hollow support member (43a) is formed with an open top and bottom and is formed to a size such that it can be fitted into the first hollow support member (42b) of the main body. Although not illustrated, it is also possible to make the second hollow support member fit into the inside of the first hollow support member.

[0056] When the upper protective concrete of such a connecting tank (41) is poured, the concrete is immersed in the first and second hollow support sections, which are cylindrical in shape with open top and bottom ends, and performs the function of increasing resistance to long-term loads.

[0057] Additionally, the protective top plate (43) performs the function of supporting unpredictable working loads during concrete pouring. To this end, it is desirable to adjust the length of the second hollow support member (43a) so that the lower end passes through the first hollow support member (42b) and is positioned at the top of the building foundation, thereby allowing the second hollow support member (43a) to receive the entire upper load.

[0058] The number of first and second hollow support members and their installation locations can be varied.

[0059] The first horizontal connecting member (56) transmits groundwater flowing in one group of first horizontal connecting pipes (51) extended parallel to one direction to another group of first horizontal connecting pipes (51) extended parallel to said one direction, and to another group of multiple first horizontal connecting pipes (51) extended in a left or right direction orthogonal to said one direction.

[0060] The first horizontal connecting member (56) comprises: a main connecting pipe (57) that extends in a direction perpendicular to the longitudinal direction of the horizontal connecting pipes of the one group and the other group between the first horizontal connecting pipe (51) of one group and the other group, thereby connecting the one group and the other group; and a branch pipe (58) that extends in the longitudinal direction of the horizontal connecting pipes of the one group and the other group to connect the ends of the first horizontal connecting pipes (51) or the second horizontal connecting pipes (52) of the other group, with one end or the other end of the main connecting pipe (57) connected to the longitudinal center side of one side.

[0061] The main connecting pipe (57) and the branch pipe (58) of the first horizontal connecting member (56) are formed in a circular pipe shape, but they can be formed in a square pipe shape as shown in the illustration.

[0062] In addition, as another embodiment, the first horizontal connecting member (56) may be connected to one side of the main connecting pipe (57) in the longitudinal direction or on the other side of the branch pipe (58), as shown in FIG. 12.

[0063] Referring to FIG. 3, the second horizontal connecting member (61) transmits groundwater flowing in the first horizontal connecting pipes (51) extended parallel to one direction of the first group (A) to the first horizontal connecting pipe (51) of the second group (B) extended parallel to the said one direction, and to a plurality of first horizontal connecting pipes (51) of the third and fourth groups (C, D) extended in the left or right direction, respectively, perpendicular to the said one direction.

[0064] The second horizontal connecting member (61) is extended in a direction perpendicular to the longitudinal direction of the first horizontal connecting pipes (51) of the first and second groups (A, B) between the first and second groups (A, B) and has a main connecting pipe (62) that connects the first horizontal connecting pipes (51) of the first group (A) and the first horizontal connecting pipes (51) of the second group (B); and a pair of branch pipes (63, 64) that extend in the longitudinal direction of the first horizontal connecting pipes (51) of the first and second groups (A, B) to connect the ends of the first horizontal connecting pipes (51) of the third group (C) or the fourth group (D), with one end or the other end of the main connecting pipe (62) respectively connected to one side.

[0065] The main connecting pipe (62) of the second horizontal connecting member (61) and a pair of branch pipes (63, 64) are formed in a circular pipe shape, but unlike what is shown, they can be formed in a square pipe shape.

[0066] The third horizontal connecting member (66) can transfer groundwater flowing in the first, second, or third horizontal connecting pipes (51, 52, 53) that are extended parallel to one direction to other first, second, or third horizontal connecting pipes (51, 52, 53) that are extended to the left or right direction intersecting the said one direction.

[0067] Referring to FIGS. 1 and FIGS. 4, the third horizontal connecting member (66) connects the third horizontal connecting pipes (53) extended from the first vertical pipe section (71) and the third horizontal connecting pipes (53) extended to the sump (310).

[0068] Unlike what is described, the third horizontal connecting member (66) may connect the second horizontal connecting pipes (52) extending from the first vertical pipe section (71) with the first horizontal connecting pipes (51), or may connect the first horizontal connecting pipes (51) that are orthogonal to each other.

[0069] The third horizontal connecting member (66) is formed in a pipe shape so as to connect the ends of the first, second, or third horizontal connecting pipes (51, 52, 53) that are extended parallel to one direction, and so as to allow groundwater transferred to the first, second, or third horizontal connecting pipes (51, 52, 53) to flow inward, and comprises: a first extension pipe (67) with one end in the longitudinal direction closed and the other end open; and a second extension pipe (68) that is extended to connect the ends of the other first, second, or third horizontal connecting pipes (51, 52, 53) that are extended in the left or right direction intersecting the one direction, and has one end in the longitudinal direction connected to the other end of the first extension pipe (67) to transfer groundwater transferred to the first extension pipe (67) to the other first, second, or third horizontal connecting pipes (51, 52, 53).

[0070] The first extension tube (67) and the second extension tube (68) are formed in a circular tube shape, but they can be formed in a square tube shape as shown.

[0071] With reference to FIGS. 5 and 6, the horizontal connection unit (40) may further include a fourth horizontal connection member (81) and a fifth horizontal connection member (86) installed according to the position connecting the vertical connection pipe (32) and a plurality of groups of horizontal connection pipes (51)(52).

[0072] The fourth horizontal connecting member (81) is equipped with a main connecting pipe (82) and a branch pipe (83).

[0073] The main connecting pipe (82) of the fourth horizontal connecting member (81) extends in a direction orthogonal to the longitudinal direction of the horizontal connecting pipes of one group and the other group between one group of first horizontal connecting pipes (51) and another group of first horizontal connecting pipes (51) arranged in a continuous manner parallel to the one group.

[0074] The main connecting pipe (82) of the fourth horizontal connecting member (81) is connected to the first horizontal connecting pipes (51) of one group in the width direction on one side, and to the first horizontal connecting pipes (51) of another group on the other side in the width direction, and one side in the length direction is connected to the upper part of the vertical connecting pipe (32).

[0075] The branch pipe (83) of the fourth horizontal connecting member (81) is extended perpendicularly to the main connecting pipe (82) so that another group of the first horizontal connecting pipes (51) or second horizontal connecting pipes (52), which are extended parallel to the main connecting pipe (82), are connected to one side in the width direction.

[0076] And, the other side in the length direction of the main connecting pipe (32) is connected to the other side in the width direction of the branch pipe (83) of the fourth horizontal connecting member (81).

[0077] The other end of the main connecting pipe (82) in the longitudinal direction is connected to the longitudinal center of the branch pipe (83) of the fourth horizontal connecting member (81), but it may also be connected to one end or the other end in the longitudinal direction.

[0078] Alternatively, a plurality of second horizontal connecting pipes (52) may be connected to one side of the main connecting pipe (82), a group of first horizontal connecting pipes (51) extending in one direction may be connected to the other side of the main connecting pipe (82), and another group of first horizontal connecting pipes (51) extending parallel to the length direction of the main connecting pipe (82) may be connected to one side of the branch pipe (83).

[0079] The fifth horizontal connecting member (86) comprises: a main connecting pipe (87) formed such that one end in the longitudinal direction is connected to the upper part of a vertical connecting pipe (32) at a different location that is not connected to the fourth horizontal connecting member (81), and the other end in the longitudinal direction is closed; and a branch pipe (88) that extends from the other side of the main connecting pipe (87) in a direction perpendicular to the main connecting pipe (87) and has the end of the protruding direction closed.

[0080] The main connecting pipe (87) of the fifth horizontal connecting member (86) extends in a direction orthogonal to the direction in which the first or second horizontal connecting pipes (51, 52) of one group are extended in parallel, and the first or second horizontal connecting pipes (51, 52) of one group are connected to one side.

[0081] And, on one side of the branch pipe (88) of the fifth horizontal connecting member (86), another group of first or second horizontal connecting pipes (51, 52) is connected, extending in a direction orthogonal to the first or second horizontal connecting pipe (51, 52) connected to the main connecting pipe (87).

[0082] The fourth and fifth horizontal connecting members (81, 86) may further be provided with a cylindrical branch cap (84) formed so that the inner side is open downward so that the upper part of the vertical connecting pipe (32) can be inserted, and the side part is connected to the main connecting pipe (82).

[0083] Unlike the illustration, the branch cap (84) may not be provided, and the vertical connecting pipe (32) connected to the main connecting pipe (82, 87) of the fourth or fifth horizontal connecting member (81, 86) may be formed to be extended in length so as to protrude upward above the foundation concrete (300) and have its top closed so as to be directly connected to the main connecting pipe (82, 87).

[0084] Also, the main connecting pipe (82) and branch pipe (83) of the fourth horizontal connecting member (81), and the main connecting pipe (87) and branch pipe (88) of the fifth horizontal connecting member (86) are each formed in a circular pipe shape, but they may be formed in a square pipe shape as shown.

[0085] The first to fifth horizontal connecting members (56, 61, 66, 81, 86) described so far are formed integrally, but unlike what is shown, at least three of the following may be formed by combining: a straight pipe extended in a straight shape, an elbow pipe bent so that one side and the other side intersect, a T-piece branched in a 'T' shape, and a finishing cap coupled to the straight pipe to close one end or the other end of the straight pipe.

[0086] For example, the first horizontal connecting member (56) may consist of a T-tube, a pair of straight tubes connected to both sides of the T-tube and parallel to each other, another straight tube connected to the center of the T-tube perpendicular to the pair of straight tubes, and a plurality of end caps connected to each other end of each straight tube. Different groups of first horizontal connecting tubes (51) are connected to both sides of the other straight tube.

[0087] Additionally, the second horizontal connecting member (61) may consist of a straight tube extending in a direction orthogonal to the longitudinal direction of the first horizontal connecting tubes (51) to connect the first horizontal connecting tubes (51) of different groups, a pair of T-tubes with centers mounted at each end of the straight tube, a plurality of other straight tubes with one end connected to each side of the T-tube orthogonally to the straight tube, and a plurality of end caps connected to the other ends of the other straight tubes. The first horizontal connecting tubes (51) of different groups are connected to both sides of the straight tube of the straight tube.

[0088] Additionally, the third horizontal connecting member (66) may consist of one elbow tube, a pair of straight tubes that are orthogonal to each other with one end connected to each side of the elbow tube, and a pair of end caps that are connected to the other ends of each of the pair of straight tubes. A first, second, or third horizontal connecting member (51, 52, 53) is connected to the side of the straight tube in a direction orthogonal to the longitudinal direction.

[0089] Meanwhile, upper protective concrete (350) is poured on the upper part of the horizontal connection unit (40), and as a means of preventing condensation, a plurality of condensation prevention plates (90) are arranged between the foundation concrete (300) and the upper protective concrete (350).

[0090] The condensation prevention plate (90) has the same structure as the drainage plate (20) and is provided with a square plate-shaped condensation prevention plate main body (91) and a plurality of condensation prevention protrusions (92) that are drawn in from the upper surface of the condensation prevention plate main body (91), protrude downward, and are spaced apart from each other.

[0091] The first, second, and third horizontal connecting pipes (51)(52)(53) extend between the condensation prevention protrusions (92) of the condensation prevention plate (90).

[0092] It is preferable that the mutual spacing of the condensation prevention protrusions (92) protruding downward from the main body (91) of the condensation prevention plate be larger than the outer diameter of the first, second, and third horizontal connecting pipes (51), (52), and (53). This is to prevent the condensation prevention protrusions (92) from coming into contact with the outer surface of the first, second, and third horizontal connecting pipes (51), (52), and (53).

[0093] In addition, considering interference when installing the first, second, or third horizontal connecting pipes (51)(52)(53) between the condensation prevention protrusions (92), it is preferable to make the vertical extension length of the condensation prevention protrusion (92) protruding downward from the condensation prevention plate main body (91) larger than the outer diameter of the first, second, and third horizontal connecting pipes (51)(52)(53) so that the first, second, and third horizontal connecting pipes (51)(52)(53) do not come into contact with the lower surface of the condensation prevention plate main body.

[0094] Non-contact between the first, second, and third horizontal connecting pipes (51)(52)(53) and the main body (91) of the condensation prevention plate blocks the cold air of low-temperature groundwater passing through the first, second, and third horizontal connecting pipes (51)(52)(53) from being transmitted to the upper protective concrete (350) forming the floor surface of the basement through the main body (91) of the condensation prevention plate, thereby preventing the temperature of the upper protective concrete (350) from dropping below the dew point temperature and thus preventing the formation of condensation.

[0095] In addition, to prevent condensation from occurring on the surface of the upper protective concrete (350), the condensation prevention means further comprises a plurality of condensation prevention members (95) formed of an insulating material, through which first, second, and third horizontal connecting pipes (51)(52)(53) extending from below the condensation prevention plate main body (91) are seated on the upper surface of the foundation concrete (300).

[0096] A plurality of condensation prevention members (95) are installed spaced apart from each other at predetermined intervals along the longitudinal direction of the first, second, or third horizontal connecting pipes (51, 52, 53), but unlike what is shown, they may be installed continuously in each of the first, second, or third horizontal connecting pipes (51, 52, 53).

[0097] The condensation prevention member (95) separates the first, second, and third horizontal connecting pipes (51, 52, 53) from the condensation prevention protrusions (92) of the condensation prevention plate (90), the upper surface of the foundation concrete (300), and the lower surface of the condensation prevention plate body (91) so that they do not come into contact.

[0098] The condensation prevention member (95) may be formed such that, unlike the illustration, the first, second, and third horizontal connecting pipes (51)(52)(53) are not penetrated, and the first, second, and third horizontal connecting pipes (51)(52)(53) are supported on the upper side.

[0099] In addition, unlike what is described, if the first, second, and third horizontal connecting pipes (51)(52)(53) are formed by bending, an elbow pipe shape may be applied to correspond to the shape of the bent portion of the first, second, and third horizontal connecting pipes (51)(52)(53).

[0100] Although the condensation prevention means is not illustrated, the first, second, third, and fourth condensation prevention covers may be further provided, formed to surround the first, second, third, and fourth horizontal connecting members (56, 61, 66, 81) respectively, and formed so that the first, second, or third horizontal connecting pipe (51, 52, 53) can pass through them.

[0101] It is preferable that the first, second, third, and fourth condensation prevention covers have a structure separated into upper and lower sections. The first, second, third, and fourth condensation prevention covers are formed from an insulating material, such as the condensation prevention member (95).

[0102] And, referring to FIGS. 10 and FIGS. 11, the groundwater drainage device (10) according to the present invention further comprises a filter clogging measurement management unit (100).

[0103] The filter clogging measurement management unit (100) comprises: an inspection pipe (101) installed at a design safety head height by extending vertically upward through the foundation concrete (300) on a foundation floor surface (25) where the drainage section (20) is not constructed; at least one wash water spray pipe (103) that penetrates the foundation concrete (300) to spray high-pressure wash water toward a filter (22), which is a non-woven fabric that is laid below the drainage plate (21) or surrounds the perforated pipe; protective pipes (105) that extend vertically through the foundation concrete (300) to surround each wash water spray pipe (103); a plurality of covers (107) coupled to the upper surface of the foundation concrete (300) or the upper end of the protective pipe (105) to open and close the upper end of each protective pipe (105); and at least one pump (109) for pumping wash water into the wash water spray pipe (103). It comprises: wash water supply pipes (111) that extend from the above pump (109) and are detachably coupled to the wash water spray pipe (103); and a plurality of wash water supply control valves (113) that open and close each wash water supply pipe (111).

[0104] In the case where the filter (22) forming the drainage section (20) is permeable, that is, when the filter is blocked by fine particles carried by the incoming groundwater and sufficient groundwater discharge is not being achieved, the blockage of the filter (22) can be detected using the water level or pressure of the groundwater inside the inspection pipe (101).

[0105] That is, when groundwater is discharged normally, the water level measured through the inspection pipe (101) maintains an observed water level (H1) that is substantially similar to the water level measured through the first and second vertical pipe sections (71, 77).

[0106] On the other hand, when the filter (22) is blocked, the water level measured through the inspection tube (101) is measured to be higher than the allowable water level (H2) or higher than the water level measured by the first and second vertical pipe sections (71, 77).

[0107] When groundwater is sufficiently discharged through the drainage section (20), the groundwater overflows through the first and second vertical pipe sections (71, 77) to maintain the groundwater level.

[0108] However, when the groundwater is discharged, if the filter (22) becomes clogged by fine particles that move along with it, the groundwater discharge is not smooth, and the groundwater head rises above the design safety level. In this case, since the non-woven fabric filter (22) is clogged, the overflow amount through the first and second vertical pipe sections (71, 77) is reduced.

[0109] As described above, if the groundwater is not sufficiently discharged, the groundwater level rises due to the undischarged groundwater, and this groundwater rises above the water level of the inspection pipe (101), i.e., the observation level (H1), and approaches the allowable water level (H2). If the blockage of the filter (22) is relatively severe, it is discharged through the inspection pipe (101).

[0110] When blockage of the filter (22) is detected, the covers (107) are removed from each protective tube (105) to supply high-pressure cleaning water for cleaning the filter (22). Then, the cleaning water supply tube (111) is connected to the cleaning water spray tube (103), and after opening the cleaning water supply unit (111), the pump (109) is driven to spray high-pressure (set pressure) cleaning water into the cleaning water spray tubes (103) to clean the filter (22).

[0111] As described above, in the groundwater drainage device (10) according to the present invention, groundwater overflowing from the vertical pipe section is drained into a collection well (310) by means of the first, second, and third horizontal connecting pipes (51, 52, 53), so groundwater is not exposed to the floor surface of the building.

[0112] In addition, the groundwater drainage device (10) according to the present invention can be easily connected in various forms according to the installation location of the first, second, and third horizontal connecting pipes (51, 52, 53) installed on the upper surface of the foundation concrete or the area size or shape of the building by means of the first, second, third, and fourth horizontal connecting members (56, 61, 66, 81), and the joint connection structure between the horizontal connecting pipes is simple, thereby improving constructability.

[0113] In addition, the groundwater drainage device (10) according to the present invention has the advantage of preventing an increase in positive pressure caused by localized groundwater stagnation by ensuring smooth groundwater flow through first, second, third, fourth, and fifth horizontal connecting members (56, 61, 66, 81, 86) that can integrally connect first, second, or third horizontal connecting pipes (51, 52, 53).

[0114] In addition, the groundwater drainage device (10) according to the present invention has the advantage of allowing groundwater to be moved through other first, second, or third horizontal connecting pipes by means of first, second, third, fourth, and fifth horizontal connecting members (56, 61, 66, 81, 86) even if one of the first, second, or third horizontal connecting pipes (51, 52, 53) is blocked or groundwater stagnation occurs, thereby enabling smoother drainage.

[0115] In the groundwater drainage device (10) according to the present invention, the first, second, and third horizontal connecting pipes (51, 52, 53) do not come into direct contact with the foundation concrete (300) and the upper protective concrete (350), so the efficiency of preventing condensation can be further improved.

[0116] Meanwhile, FIG. 13 illustrates a condensation prevention means of a groundwater drainage device according to another embodiment of the present invention. Components having the same function as those in the previously illustrated drawings are indicated by the same reference numerals.

[0117] In a groundwater drainage device according to another embodiment of the present invention, the upper protective concrete (350) is poured directly onto the upper part of the foundation concrete (300) without a separate condensation prevention plate (90), and the horizontal connection unit (40) is embedded within the upper protective concrete (350).

[0118] Referring to FIG. 13, a condensation prevention means according to another embodiment of the present invention comprises a condensation prevention insulation material (98) that wraps around first, second, and third horizontal connecting pipes (51, 52, 53) embedded in upper protective concrete (350), and said first, second, and third condensation prevention covers.

[0119] In a groundwater drainage device according to another embodiment of the present invention, the condensation-preventing insulation material (98) surrounds the first, second, and third horizontal connecting pipes (51, 52, 53) so that it does not come into direct contact with the upper protective concrete (350), thereby improving the efficiency of preventing condensation.

[0120] The groundwater drainage device according to the present invention described above has been explained with reference to the attached drawings, but this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true scope of technical protection of the present invention should be determined only by the technical concept of the appended claims. Explanation of the symbols

[0121] 10 : Groundwater drainage device 20 : Drainage section 32 : Vertical connecting pipe 40 : Horizontal connecting unit 41 : Connecting tank 51 : First horizontal connecting pipe 52 : 2nd horizontal connecting pipe 53 : 3rd horizontal connecting pipe 56 : First horizontal connecting member 61 : Second horizontal connecting member 66 : 3rd horizontal connecting member 71 : 1st vertical pipe section 77 : 2nd vertical pipe section 90 : Condensation prevention plate 95 : Condensation prevention member

Claims

Claim 1 A drainage section including a perforated pipe or drainage plate installed below the foundation concrete of a building and into which groundwater flows; a plurality of vertical connecting pipes extending from the drainage section to penetrate the foundation concrete and spaced apart at a predetermined interval; and a plurality of vertical pipe sections installed adjacent to a column or wall of the building and extending to or below the design stable groundwater level; A horizontal connection unit comprising a plurality of horizontal connection pipes extending horizontally above the foundation concrete to connect the vertical connection pipes or to connect the vertical connection pipes and the vertical pipe section, and a plurality of horizontal connection members connecting the horizontal connection pipes to each other; and a condensation prevention means for preventing the horizontal connection pipes from coming into contact with the foundation concrete and the upper protective concrete poured on the upper portion of the horizontal connection pipes; wherein the condensation prevention means comprises a condensation prevention plate including a main body portion of the condensation prevention plate arranged on the upper portion of the foundation concrete and covered by the upper protective concrete, and a plurality of condensation prevention protrusions extending downward from the main body portion of the condensation prevention plate and supported on the upper surface of the foundation concrete; and a condensation prevention member formed of an insulating material, installed on the upper portion of the foundation concrete to support the horizontal connection pipes so that the horizontal connection pipes do not come into contact with the condensation prevention plate and the upper surface of the foundation concrete, wherein the mutual spacing of the condensation prevention protrusions protruding downward from the main body portion of the condensation prevention plate is such that the horizontal connection pipes A groundwater drainage device characterized by further comprising a condensation prevention cover made of an insulating material and having a structure separated into upper and lower sections, wherein the condensation prevention member is formed to be larger than the outer diameter so as not to contact the outer surface of the horizontal connecting pipe, the condensation prevention protrusions are formed to be formed so as not to contact the outer surface of the horizontal connecting pipe, the horizontal connecting pipe is formed to be penetrated or supported on the upper surface, and the horizontal connecting pipe is spaced apart from the condensation prevention protrusions, the upper surface of the foundation concrete, and the lower surface of the condensation prevention plate body, so as not to contact the horizontal connecting pipe. Claim 2 A groundwater drainage device according to claim 1, wherein a plurality of horizontal connecting members comprises: a first horizontal connecting member that transmits groundwater flowing in one group of horizontal connecting pipes extended parallel to one direction to another group of horizontal connecting pipes extended parallel to the one direction, and to another group of a plurality of horizontal connecting pipes extended in a left or right direction orthogonal to the one direction; wherein the first horizontal connecting member comprises: a main connecting pipe that extends in a direction orthogonal to the longitudinal direction of the horizontal connecting pipes of one group and the other group between the one group and the other group to connect the one group and the other group; and a branch pipe that extends in the longitudinal direction of the horizontal connecting pipes of one group and the other group to connect the ends of the horizontal connecting pipes of the other group, and wherein one end or the other end of the main connecting pipe is connected to one side. Claim 3 A groundwater drainage device according to claim 1, wherein a plurality of horizontal connecting members comprises: a second horizontal connecting member that transmits groundwater flowing in the horizontal connecting pipes of the first group, which are extended parallel to one direction, to the horizontal connecting pipes of the second group, which are extended parallel to the one direction, and to a plurality of horizontal connecting pipes of the third and fourth groups, which are each extended in a left or right direction orthogonal to the one direction; wherein the second horizontal connecting member comprises: a main connecting pipe that extends between the first and second groups in a direction orthogonal to the longitudinal direction of the horizontal connecting pipes of the first and second groups to connect the horizontal connecting pipes of the first group and the horizontal connecting pipes of the second group; and a pair of branch pipes that extend in the longitudinal direction of the horizontal connecting pipes of the first and second groups to connect the ends of the horizontal connecting pipes of the third or fourth group, and wherein one end or the other end of the main connecting pipe is respectively connected to one side. Claim 4 A groundwater drainage device according to claim 1, wherein a plurality of horizontal connecting members comprises a third horizontal connecting member that transmits groundwater flowing in the horizontal connecting pipes extended parallel to one direction to other horizontal connecting pipes extended to the left or right direction intersecting the one direction; wherein the third horizontal connecting member comprises a first extension pipe that is extended to connect the ends of the horizontal connecting pipes extended parallel to one direction and is formed in a pipe shape to allow groundwater transferred to the horizontal connecting pipes to flow inward, with one end in the longitudinal direction closed and the other end open, and a second extension pipe that is extended to connect the ends of other horizontal connecting pipes extended to the left or right direction intersecting the one direction and has one end in the longitudinal direction connected to the other end of the first extension pipe to transmit groundwater flowing into the first extension pipe to other horizontal connecting pipes. Claim 5 A groundwater drainage device according to claim 1, characterized in that the plurality of horizontal connecting members comprises: a first horizontal connecting member connecting horizontal connecting pipes arranged in a 'T' shape; a second horizontal connecting member connecting horizontal connecting pipes arranged in a cross shape; and a third horizontal connecting member connecting the horizontal connecting pipes arranged in an 'L' shape. Claim 6 A groundwater drainage device according to claim 1 or 5, wherein a plurality of horizontal connecting members further comprises a fourth horizontal connecting member connecting the vertical connecting pipe and a plurality of groups of the horizontal connecting pipes, wherein the fourth horizontal connecting member has one longitudinal side connected to the upper part of the vertical connecting pipe, and is extended such that one group of the horizontal connecting pipes extending in one direction parallel to one side in the width direction are connected, and another group of the horizontal connecting pipes extending in a direction parallel to the one group of the horizontal connecting pipes extending in the other side in the width direction are connected; and a branch pipe extending in length to intersect the main connecting pipe so that another group of the horizontal connecting pipes extending parallel to the main connecting pipe are connected to one side in the width direction, and the other longitudinal side of the main connecting pipe is connected to the other side in the width direction. Claim 7 A groundwater drainage device according to claim 6, wherein a plurality of horizontal connecting members further comprises a fifth horizontal connecting member connecting the vertical connecting pipe and a plurality of groups of the horizontal connecting pipes, wherein the fifth horizontal connecting member is connected to the upper part of the vertical connecting pipe positioned at a different location from the vertical connecting pipe connected to the fourth horizontal connecting member on one side in the longitudinal direction, and the horizontal connecting pipes extending parallel to one side in the width direction are connected to another main connecting pipe; and another branch pipe extending in length to intersect the main connecting pipe so that the horizontal connecting pipes extending parallel to the other main connecting pipe are connected to one side in the width direction, and the other side in the width direction of the main connecting pipe is connected to the end in the longitudinal direction. Claim 8 delete Claim 9 delete

Images