KR-102961750-B1 - De-Watering system with groundwater recovery function and drain conduit

Abstract

The present invention relates to a permanent drainage system with a groundwater return function. The invention relates to a permanent drainage system that prevents groundwater depletion and supplies moisture to the surrounding soil, thereby aiding the growth of surrounding vegetation, by returning the groundwater discharged during the process of discharging groundwater collected in a collection well to the surface layer.

Inventors

• 김상훈
• 박강용

Assignees

• 준이엔씨(주)

Dates

Publication Date

20260513

Application Date

20250813

Claims (6)

1. delete
2. A drainage pipe installed on the foundation construction reference surface to guide groundwater that has infiltrated the foundation construction reference surface; A collection well where groundwater guided by the above-mentioned drainage pipe is collected; A collection tank in which groundwater drawn up from the above sump through a drainage pump is collected; At least one distribution tank connected to the above-mentioned collection tank into which groundwater flows; A groundwater reduction pipe formed in at least a part of the above-mentioned collection tank and at least one of the above-mentioned distribution tanks, having a pipe structure extending downward and a plurality of groundwater discharge holes formed in the outer wall; It includes one or more connecting pipes that connect the above-mentioned collection tank and the above-mentioned at least one distribution tank to allow groundwater to flow, and at least some of the one or more connecting pipes include perforated pipes having a plurality of holes formed therein. It further includes a rainwater manhole connected through the above-mentioned collection tank and passageway, A fluid reduction valve is installed in the connecting pipe connected to the above-mentioned water collection tank to reduce or restrict the flow of groundwater, and A permanent drainage system characterized by the fact that when the above fluid reduction valve is operated to restrict the flow of groundwater into the above connecting pipe, the groundwater overflows the wall of the above collection tank and is guided to the above rainwater manhole.
3. delete
4. In paragraph 2, A permanent drainage system characterized by having a cleaning inspection pipe installed in at least some of the above-mentioned connecting pipes, the pipe being connected to the perforated pipe and having a ground-exposed pipe formed above the surface.
5. In paragraph 2, Among the above connecting pipes, the connecting pipe equipped with the perforated pipe is A composite aggregate layer containing finely crushed aggregates on the outer side of the above perforated pipe; A permanent drainage system characterized by comprising a geotextile that surrounds the above-mentioned composite aggregate layer.
6. In paragraph 2, A permanent drainage system characterized in that some of the above distribution tanks are connected to a rainwater storage tank through a passage.

Description

Permanent drainage system with groundwater recovery function and drain conduit The present invention relates to a permanent drainage system, and more specifically, to a permanent drainage system having a groundwater return function that collects and discharges groundwater infiltrating the foundation structure of civil engineering and building structures from a collection well, returns the collected groundwater to the groundwater below the surface layer, and simultaneously supplies moisture to the soil of the surface layer to aid in the growth of surrounding vegetation and prevent the urban heat island effect. Generally, for the construction of underground civil and architectural structures, excavation work is carried out to a predetermined depth, and a foundation structure is formed on the ground (bottom surface) where the excavation is completed, and the civil or architectural structure is constructed based on this foundation structure. When groundwater infiltrates into the aforementioned foundation structure, the groundwater acts as buoyancy and uplift pressure on the underground structure (building), and this buoyancy and uplift pressure acts as a lifting force for the underground structure (building) due to the difference in water head caused by the groundwater level between the bottom of the underground structure (building) and the surrounding area. Therefore, at construction sites for civil and architectural structures with basements, the de-watering method is being used as a countermeasure against buoyancy and uplift pressure caused by groundwater. Permanent drainage method refers to a method for reducing the buoyancy (upward pressure) of groundwater acting on the bottom surface of a foundation layer (concrete layer) for the construction of a building, by forming a drainage layer that induces groundwater flow at the bottom of the foundation layer and installing a sump at a location around the foundation layer, collecting the groundwater acting on the bottom of the foundation layer into the sump through the drainage layer, forcibly pumping it to the surface, and then draining it to the outside. As collected groundwater is pumped to the surface and drained to the outside, groundwater resources are wasted, and there is a problem of ground subsidence resulting from groundwater depletion. Prior art regarding permanent drainage methods includes Korean Registered Patent No. 10-2693177 (Permanent Drainage System). FIG. 1 is a drawing illustrating the state in which a drain pipe and a drain board constituting the permanent drainage system of the present invention are installed on a construction floor surface, and FIG. 2 is a partial perspective view of a double-sided socket and a drain pipe constituting the permanent drainage system of the present invention, and FIG. 3 is a photograph serving as a drawing of a drain board constituting the permanent drainage system of the present invention, and FIG. 4 is a configuration diagram illustrating the overall configuration of a water drainage system with a groundwater regeneration function according to a preferred embodiment of the present invention, and FIG. 5 is a drawing illustrating the AA cross-sectional configuration of a water drainage system with a groundwater regeneration function according to a preferred embodiment of the present invention, and FIG. 6 is a drawing illustrating the BB cross-sectional configuration of a water drainage system with a groundwater regeneration function according to a preferred embodiment of the present invention, and FIG. 7 is a drawing showing a CC cross-section of a connecting pipe and surrounding components of a groundwater drainage system with a groundwater reduction function according to a preferred embodiment of the present invention, and FIG. 8 is a drawing illustrating a DD cross-section of a connecting pipe and surrounding components of a groundwater drainage system with a groundwater regeneration function according to a preferred embodiment of the present invention, and FIG. 9 is a drawing showing the EE cross-section of a cleaning inspection pipe of a water drainage system with a groundwater reduction function according to a preferred embodiment of the present invention. Hereinafter, the configuration of a permanent drainage system with a groundwater reduction function and a drainage pipe according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings. FIG. 1 is a drawing showing the state in which a drain pipe and a drain board constituting the permanent drainage system of the present invention are installed on a construction floor surface, FIG. 2 is a partial perspective view of a double-sided socket (130) and a drain pipe (120) constituting the permanent drainage system of the present invention, and FIG. 3 is a photograph serving as a drawing of a drain board constituting the permanent drainage system of the present invention. As illustrated in FIGS. 1