Permanent drainage system for buildings for minimizing underground inflow water

KR103019999B1Active Publication Date: 2026-09-16G S ENG & CONSTR
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Patent Information

Application Number
KR1020260047767
Authority / Receiving Office
KR · KR
Patent Type
Patents
Current Assignee / Owner
Filing Date
2026-03-17
Publication Date
2026-09-16
Estimated Expiration
2046-03-17

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Abstract

The present invention relates to a permanent drainage system for a building capable of minimizing the amount of groundwater inflow, comprising: a permanent drainage sump installed on one side of the basement of the building; and an inflow pipe installed in the foundation layer of the building to allow groundwater to flow in, with one end connected to the permanent drainage sump so as to discharge the inflowed groundwater to the permanent drainage sump. The other end of the inlet pipe is connected to a building sump that is positioned between a pair of permanent drainage sumps and installed at a higher position than the permanent drainage sumps, wherein the inlet pipe includes an inlet module that introduces groundwater, a first discharge module that has one end connected to the inlet module and the other end connected to the interior of the permanent drainage sump, and a second discharge module that has one end connected to the inlet module and the other end connected to the interior of the building sump; the inlet pipe further includes a first groundwater level control module that branches off from the first discharge module and extends so that its end is connected to the permanent drainage sump, and has a vertical flow path to reduce the inflow of groundwater into the permanent drainage sump; and the second discharge module that branches off from the second discharge module and extends so that its end is connected to the building sump, and has a vertical flow path to reduce the inflow of groundwater into the building sump. The invention further includes a second groundwater level control module, wherein the vertical flow path of the second groundwater level control module is configured to be longer than that of the first groundwater level control module so that groundwater flows into the permanent drainage sump before the building sump. The first groundwater level control module and the second groundwater level control module are made of a transparent material and configured to display a scale so that the building manager can check the groundwater level. According to the present invention, as the length of the inflow pipe connecting the permanent drainage sump is shortened, structural stability is secured, thereby preventing the central part of the inflow pipe from being damaged by positive pressure.
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Description

Technology Field

[0001] The present invention relates to a permanent drainage system for buildings capable of minimizing the amount of underground water inflow. Background Technology

[0002] Generally, if a large amount of groundwater is distributed around and beneath a building, the building is subjected to a form of buoyancy (upward water pressure) caused by the water, which can lead to the building's destruction and threaten its safety. Conversely, if a large volume of groundwater distributed around and beneath a building is rapidly pumped out through forced drainage, the space occupied by the groundwater shrinks, causing the ground to subside. This results in the building sinking, thereby threatening its safety.

[0003] While methods utilizing dead loads and permanent (buoyancy) anchors are widely used to reduce buoyancy (upward water pressure) acting on building foundations, they have limitations in that the continuous reliability of the tensile strength of the buoyancy anchors is not guaranteed in relation to the durability and safety of the building. To address this, a permanent foundation drainage system is implemented by forming an artificial sump and drainage layer beneath the excavation surface of the foundation base. Groundwater flowing into the foundation collects in the sump via a drainage channel and is periodically pumped out, thereby preventing buoyancy (upward water pressure) from acting on the foundation concrete. Compared to conventional methods, this approach offers the advantage of resolving the problem of buoyancy (upward water pressure), which acts in proportion to the high groundwater level, more stably and permanently.

[0004] Figure 1 illustrates the problems of a conventional permanent drainage system. As shown in Figure 1, when constructing a permanent drainage system, if the distance between two sumps is long, the length of the inlet pipe connecting them must also be long. In such cases, buoyancy (upward water pressure) is concentrated in the center of the inlet pipe, which can cause the inlet pipe to break (significantly reducing structural stability). Therefore, to make the length of the inlet pipe appropriate, more sumps must be installed, which leads to an increase in the overall construction cost and construction period. The problem to be solved

[0005] The objective of the present invention is to solve the aforementioned conventional problems by providing a permanent drainage system for buildings capable of minimizing the amount of underground water inflow, which ensures structural stability by shortening the length of the inflow pipe connecting the permanent drainage sump, thereby preventing damage to the central part of the inflow pipe due to positive pressure. means of solving the problem

[0006] The above objective is achieved, according to the present invention, by a permanent drainage sump installed on one side of the basement of a building; an inlet pipe installed in the foundation layer of a building to introduce groundwater and having one end connected to the permanent drainage sump so as to discharge the introduced groundwater into the permanent drainage sump; The other end of the inlet pipe is connected to a building sump that is positioned between a pair of permanent drainage sumps and installed at a higher position than the permanent drainage sumps, wherein the inlet pipe includes an inlet module that introduces groundwater, a first discharge module that has one end connected to the inlet module and the other end connected to the interior of the permanent drainage sump, and a second discharge module that has one end connected to the inlet module and the other end connected to the interior of the building sump; the inlet pipe further includes a first groundwater level control module that branches off from the first discharge module and extends so that its end is connected to the permanent drainage sump, and has a vertical flow path to reduce the inflow of groundwater into the permanent drainage sump; and the second discharge module that branches off from the second discharge module and extends so that its end is connected to the building sump, and has a vertical flow path to reduce the inflow of groundwater into the building sump. This is achieved by a permanent drainage system utilizing a building sump as a counter, characterized in that it further includes a second groundwater level control module, wherein the vertical flow path of the second groundwater level control module is configured to be longer than that of the first groundwater level control module so that groundwater flows into the permanent drainage sump before the building sump, and the first groundwater level control module and the second groundwater level control module are made of a transparent material and configured to display a scale so that the building manager can check the groundwater level.

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[0010] delete Effects of the invention

[0011] According to the present invention, as the length of the inlet pipe connecting the permanent drainage sump is shortened, structural stability is ensured, thereby preventing the central part of the inlet pipe from being damaged by positive pressure.

[0012] In addition, according to the present invention, it is possible to utilize existing building sumps, thereby reducing the number of permanent drainage sumps to be installed and significantly reducing the unit cost of permanent drainage construction.

[0013] In addition, according to the present invention, since groundwater preferentially flows into the permanent drainage sump first, there is an effect that the building sump can be used as a counter during normal times.

[0014] Meanwhile, the effects of the present invention are not limited to those mentioned above, and various effects may be included within the scope obvious to a person skilled in the art from the contents described below. Brief explanation of the drawing

[0015] FIG. 1 illustrates the problems of a conventional permanent drainage system, FIG. 2 illustrates a permanent drainage system for a building that can minimize the amount of underground water inflow according to an embodiment of the present invention in a plan view, and FIG. 3 illustrates a permanent drainage system for a building that can minimize the amount of underground water inflow according to an embodiment of the present invention in a side view. Specific details for implementing the invention

[0016] Hereinafter, some embodiments of the present invention will be described in detail with reference to the exemplary drawings. It should be noted that in assigning reference numerals to the components of each drawing, the same components are given the same reference numeral whenever possible, even if they are shown in different drawings.

[0017] In addition, when describing embodiments of the present invention, if it is determined that a detailed description of related known configurations or functions would hinder understanding of the embodiments of the present invention, such detailed description is omitted.

[0018] In addition, terms such as first, second, A, B, (a), (b), etc., may be used when describing the components of the embodiments of the present invention. These terms are used merely to distinguish the components from other components, and the essence, order, or sequence of the components is not limited by these terms.

[0020] Hereinafter, a permanent drainage system for a building capable of minimizing underground water inflow according to an embodiment of the present invention will be described in detail with reference to the attached drawings.

[0021] FIG. 3 is a plan view of a permanent drainage system for a building capable of minimizing underground water inflow according to an embodiment of the present invention, and FIG. 3 is a side view of a permanent drainage system for a building capable of minimizing underground water inflow according to an embodiment of the present invention.

[0022] As illustrated in FIGS. 2 and 3, a permanent drainage system (100) for a building capable of minimizing underground water inflow according to one embodiment of the present invention includes a permanent drainage sump (110), an inflow pipe (120), a first groundwater level control module (130), and a second groundwater level control module (140).

[0023] A permanent drainage sump (110) is installed on one side of the basement of a building to store groundwater flowing in from an inflow pipe (120), and can be connected to the first discharge module (122) and the first groundwater level control module (130) described later, respectively.

[0024] Since the groundwater collected in the permanent drainage sump (110) must be discharged to the outside, a pump (not shown) capable of discharging groundwater to the outside may be installed inside the sump.

[0025] Meanwhile, multiple permanent drainage sumps (110) are installed based on the foundation layer of the building. These permanent drainage sumps (110) can be installed at a lower position than the building sump (W).

[0026] Here, the building sump (W) collects wastewater and rainwater generated on the ground or inside the building, and can generally be positioned at a higher location than the permanent drainage sump (110). Additionally, the building sump (W) may be installed so as to be connected to the second discharge module (123) and the second groundwater level control module (140) described later.

[0027] The inflow pipe (120) is installed in the foundation layer of the building to introduce groundwater, and is connected to the permanent drainage sump (110) and the building sump (W) so that the introduced groundwater can be discharged to the permanent drainage sump (110) and the building sump (W).

[0028] The inlet pipe (120) described above may more specifically include an inlet module (121), a first discharge module (122), and a second discharge module (123).

[0029] The inflow module (121) is for introducing groundwater and is installed on the excavated surface below the foundation floor of a building; one side is connected to the first discharge module (122), and the other side is connected to the second discharge module (123). Meanwhile, the inflow pipe (120) may have spiral holes formed continuously in a spiral shape along its length. According to the structure of this inflow pipe (120), groundwater can be introduced from all directions through the spiral holes, thereby maximizing the flow rate of the groundwater treatment. Furthermore, compared to conventionally used circular pipes, it has superior flexibility, allowing it to flexibly deform and adhere to the curvature of the ground even when installed on uneven ground, thus greatly improving constructability. Additionally, according to this, while perforated pipes, which are general-purpose materials, allow groundwater to flow in a direct direction, thereby hindering the flow of groundwater and slowing down the flow velocity, the groundwater flows in a spiral direction through the spiral holes, thus having the effect of not affecting the flow velocity of the groundwater.

[0030] The first discharge module (122) transmits groundwater delivered from the inflow module (121) into the permanent drainage collection well (110), with one end connected to the inflow module (121) and the other end connected to the permanent drainage collection well (110). Meanwhile, a first shut-off valve (not shown) may be installed at the end of the first discharge module (122) to block groundwater from flowing into the permanent drainage collection well (110).

[0031] The first shut-off valve performs the function of opening the flow path of the first discharge module (122) so that groundwater flowing into the lower side of the building structure is quickly discharged when the upward pressure of groundwater is weak after the building is constructed and no pressure reduction is required, or when groundwater accumulates excessively around and below the building due to special situations such as heavy rain or monsoon rains, thereby allowing the groundwater to be discharged into the building sump (W) without passing through the first groundwater level control module (130).

[0032] The second discharge module (123) transmits groundwater delivered from the inflow module (121) into the building sump (W), with one end connected to the inflow module (121) and the other end connected to the building sump (W). Meanwhile, a second shut-off valve (not shown) may be installed at the end of the second discharge module (123) to block groundwater from flowing into the building sump (W).

[0033] The second shut-off valve performs the function of opening the flow path of the second discharge module (123) so that groundwater flowing into the lower side of the building structure is quickly discharged when the upward pressure of groundwater is weak after the building is constructed and no pressure reduction is required, or when groundwater accumulates excessively around and below the building due to special situations such as heavy rain or monsoon rains, thereby allowing the groundwater to be discharged into the building sump (W) without passing through the second groundwater level control module (140).

[0034] According to the inlet pipe (120) comprising the inlet module (121) and the first discharge module (122) and the second discharge module (123) as described above, the inlet pipe (120) can be connected to a building sump (W) existing between a pair of permanent drainage sumps (110), thereby reducing the length of the inlet pipe (120) compared to when there is no building sump (W), so that the problem of the inlet pipe (120) being damaged due to positive pressure being concentrated in the center of the inlet pipe (120) can be effectively resolved.

[0035] The first groundwater level control module (130) reduces the inflow of groundwater into the permanent drainage collection well (110), and is formed to extend from the first discharge module (122) so that its end is connected to the permanent drainage collection well (110), and may be provided with a vertical flow path.

[0036] The first groundwater level control module (130) can control the flow rate of groundwater flowing into the permanent drainage collection well (110) by causing the groundwater to pass through a vertical flow path when the first shut-off valve blocks the flow path of the first discharge module (122). According to this first groundwater level control module (130), the upward water pressure of the groundwater flowing through the inflow pipe (120) is maintained at a constant level, thereby preventing the ground from subsiding or weakening.

[0037] In addition, it is desirable that the vertical flow path of the first groundwater level control module be made of a transparent material and configured to display a scale so that the building manager can check the groundwater level.

[0038] Meanwhile, the vertical flow path of the first groundwater level control module (130) may be configured to have a shorter length than that of the second groundwater level control module (140) described later. According to this first groundwater level control module (130), since groundwater flows into the permanent drainage sump (110) first, it is possible to use the second groundwater level control module (140), which is installed in the building sump (W) during normal times, as a counter. (Generally, since the building sump (W) is more accessible than the permanent drainage sump (110), water level measurement can be made easier.)

[0039] The second groundwater level control module (140) reduces the inflow of groundwater into the building sump (W), and is formed to extend from the second discharge module (123) so that its end is connected to the building sump (W), and may be provided with a vertical flow path.

[0040] The second groundwater level control module (140) can control the flow rate of groundwater flowing into the permanent drainage collection well (110) by causing the groundwater to pass through a vertical flow path when the second shut-off valve blocks the flow path of the second discharge module (123). According to this second groundwater level control module (140), the upward water pressure of the groundwater flowing through the inflow pipe (120) is maintained at a constant level, thereby preventing the ground from subsiding or weakening.

[0041] In addition, it is desirable that the vertical flow path of the second groundwater level control module be made of a transparent material and configured to display a scale so that the building manager can check the groundwater level.

[0042] Meanwhile, the vertical flow path of the second groundwater level control module (140) can be configured to have a longer length than that of the first groundwater level control module (130) described later. According to this second groundwater level control module (140), since groundwater flows into the permanent drainage sump (110) first, it is possible to use the second groundwater level control module (140), which is installed in the building sump (W), as a counter during normal times. (Generally, since the building sump (W) is more accessible than the permanent drainage sump (110), water level measurement can be made easier.)

[0043] According to a permanent drainage system (100) for a building capable of minimizing the amount of groundwater inflow according to an embodiment of the present invention, which includes a permanent drainage sump (110) as described above, an inflow pipe (120), a first groundwater level control module (130), and a second groundwater level control module (140), structural stability is secured as the length of the inflow pipe (120) connecting the permanent drainage sump (110) is shortened, thereby preventing damage to the central part of the inflow pipe (120) due to positive pressure. Additionally, it is possible to utilize existing building sumps (W), thereby reducing the number of permanent drainage sumps (110) installed and significantly reducing the unit cost of permanent drainage construction. Furthermore, since groundwater flows into the permanent drainage sump (110) first, it is possible to use the building sump (W) as a counter during normal times.

[0045] Although all components constituting an embodiment of the present invention have been described above as being combined or operating in combination, the present invention is not necessarily limited to such an embodiment. That is, within the scope of the purpose of the present invention, all components may be selectively combined in one or more ways to operate.

[0046] Furthermore, terms such as “include,” “compose,” or “have,” as described above, mean that the relevant component may be inherent unless specifically stated otherwise; therefore, they should be interpreted as allowing for the inclusion of additional components rather than excluding them. All terms, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains, unless otherwise defined. Commonly used terms, such as those defined in advance, should be interpreted in accordance with their meaning in the context of the relevant technology and, unless explicitly defined in the present invention, should not be interpreted in an ideal or overly formal sense.

[0047] Furthermore, the above description is merely an illustrative explanation of the technical concept of the present invention, and those skilled in the art to which the present invention pertains will be able to make various modifications and variations within the scope of the essential characteristics of the present invention.

[0048] Accordingly, the embodiments disclosed in this invention are intended to illustrate, not limit, the technical concept of the invention, and the scope of the technical concept of the invention is not limited by these embodiments. The scope of protection of this invention shall be interpreted by the claims below, and all technical concepts within an equivalent scope shall be interpreted as being included within the scope of rights of this invention. Explanation of the symbols

[0049] 100: Permanent drainage system for a building capable of minimizing underground water inflow according to an embodiment of the present invention 110: Permanent drainage sump 120: Inlet pipe 121: Inlet module 122: First discharge module 123: Second discharge module 130: First groundwater level control module 140: Second groundwater level control module W: Building sump

Claims

Claim 1 A permanent drainage sump installed on one side of the basement of a building; an inlet pipe installed in the foundation layer of a building to allow groundwater to flow in and one side of which is connected to the permanent drainage sump so as to discharge the flowed groundwater into the permanent drainage sump; The other end of the inlet pipe is connected to a building sump that is positioned between a pair of permanent drainage sumps and installed at a higher position than the permanent drainage sumps, wherein the inlet pipe includes an inlet module that introduces groundwater, a first discharge module that has one end connected to the inlet module and the other end connected to the interior of the permanent drainage sump, and a second discharge module that has one end connected to the inlet module and the other end connected to the interior of the building sump; the inlet pipe further includes a first groundwater level control module that branches off from the first discharge module and extends so that its end is connected to the permanent drainage sump, and has a vertical flow path to reduce the inflow of groundwater into the permanent drainage sump; and the second discharge module that branches off from the second discharge module and extends so that its end is connected to the building sump, and has a vertical flow path to reduce the inflow of groundwater into the building sump. A permanent drainage system utilizing a building sump as a counter, further comprising a second groundwater level control module equipped with a flow path, wherein the vertical flow path of the second groundwater level control module is configured to be longer than that of the first groundwater level control module so that groundwater flows into the permanent drainage sump before the building sump, and wherein the first groundwater level control module and the second groundwater level control module are made of a transparent material and configured to display a scale so that the building manager can check the groundwater level. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 delete

Citation Information

Patent Citations

  • Groundwater natural discharge device and construction method that responds to the lifting pressure of building

    KR102779406B1

  • Vertical type basement drainage system

    KR2020090004412U