KR20120105192A - Drainage system construction method - Google Patents

Abstract

PURPOSE: A construction method for a basement drainage system is provided to reduce the thickness of a basement side wall and enable easy construction by removing subsurface water flowing into the basement of a building from the side or reducing the lateral pressure of subsurface water. CONSTITUTION: A construction method for a basement drainage system comprises the steps of: forming an underground part and an underground surface(g) at the bottom and a side wall(B) at the lateral side, arranging a drain member on the underground surface, pouring cement mixture on the underground surface, and connecting the drain member to a drain passage or an inlet well to discharge the water from the drain member.

Description

How to Form a Basement Drainage System {DRAINAGE SYSTEM CONSTRUCTION METHOD}

The present invention relates to a method for forming a drainage system, and more particularly, a system for reducing the pressure from the side and the bottom to drain the groundwater flowing from the basement side wall and the ground floor according to the construction of the building It relates to a method of forming a.

In general, when a large amount of groundwater exists around and underneath the building, the building receives some buoyancy due to the groundwater, and the building is subjected to rising force and pressure from the side. This can destroy buildings or threaten safety.

The process through dead weight and permanent anchor is widely used for the up-water pressure treatment acting on the foundation floor of the building, but there is a limitation that the continuous reliability of the buoyancy anchor's tensile force is not guaranteed with respect to the durability and safety of the building. The improved method is to provide a catchment, drainage, and drainage pipe under the foundation floor so that the groundwater flowing into the site is collected in the sump along the drainage and pumped and discharged regularly so that the positive pressure does not act on the foundation floor concrete. Drainage system method. This has the advantage of more stable and permanently solve the problem of up-water pressure in proportion to the high groundwater level compared to the conventional method.

However, this method is to prepare for the upward pressure from the bottom of the building, it is not possible to prevent the groundwater inflow or water pressure from the basement side wall, or have a limited effect.

Therefore, there is a need for a drainage system, a construction method, and a formation method for mitigating direct lateral and lateral pressures.

An object of the present invention is to remove the groundwater flowing from the side to the basement floor of the building, or to relieve the lateral pressure of the groundwater, to reduce the thickness of the basement sidewalls, and to provide a system for facilitating construction.

An object of the present invention is to remove the groundwater flowing into the basement floor of the building, and to construct a system for mitigating the upper water pressure.

An object of the present invention is to provide a drainage material formed integrally, and to enable a simple construction method that merely arranges the drainages in a line, thereby providing a plate-shaped drainage material which can reduce manufacturing cost and construction time.

According to one aspect of the present invention, there is provided a method including: (1) forming an underground portion below the ground, an underground surface of the bottom surface, and sidewalls on the side; (2) disposing a drain member on the ground surface; (3) connecting the drainage member to the drainage channel or the sump side to discharge the water flowing from the drainage member to the drainage path or the sump well; forming an underground layer drainage system, characterized in that it comprises a To provide.

After the drain member is provided in the step (2), the cover member is disposed to be wider than the drain member outside the drain member.

A plurality of the drain member is disposed, a plurality of the cover member is disposed on the outside of the plurality of drain members, respectively, the plurality of drain member and a second cover member is further disposed on the outside of the plurality of cover members It features.

Geotextiles are further disposed between the basement and the drain member.

Geosynthetic fiber is provided on the bottom side of the drain member, or characterized in that the geotextile is wrapped on the outside of the drain member.

After the step (2), characterized in that it further comprises the step of pouring a cement mixture on the basement.

The drain member may include: an upward path having a predetermined height and a descending path that meets the upper path and the lower path so as to have a path descending after rising to have a height.

(1) forming an underground portion below the ground, a basement of the bottom and sidewalls of the side; (2) disposing a drain member on the side wall; (3) connecting the drainage member to the drainage channel or the sump side to discharge the water flowing from the drainage member to the drainage path or the sump well; forming an underground layer drainage system, characterized in that it comprises a To provide.

In the step (2), the drain member is provided on the side wall in the vertical direction.

After the drain member is provided in the step (2), the cover member is disposed to be wider than the drain member outside the drain member.

A plurality of the drain member is disposed, a plurality of the cover member is disposed on the outside of the plurality of drain members, respectively, the plurality of drain member and a second cover member is further disposed on the outside of the plurality of cover members It features.

Geotechnical fibers are further disposed between the side wall and the drain member.

Geosynthetic fiber is provided on the side wall of the drain member, or characterized in that the geotextile is wrapped on the outside of the drain member.

After the step (1), further comprising the step of pouring a cement mixture on the side wall, characterized in that step (2) is carried out after the cement mixture is poured.

After the step (1), arranging the network member in parallel with the sidewall; And pouring the cement mixture towards the wire mesh, wherein the step (2) is performed after the cement mixture is poured.

Before the step (2), characterized in that it further comprises the step of forming a through-hole in the cement mixture layer is poured.

When connecting the drain member to the sump side, it is characterized in that the lower end of the drain member is in communication with the permanent foundation drainage formed in the bottom layer.

When connecting the drain member to the drain, it is characterized in that the lower end of the drain member is in communication with the trench formed on the bottom layer.

The drain member is characterized in that it comprises a drain board.

The drain member may include: a plurality of upper contact parts formed in an elongated plate shape and positioned at an upper side thereof; A plurality of downward contact parts formed in a long plate shape and positioned at a lower side thereof; A plurality of support parts extending in a plate shape downward in a long shape along a longitudinal direction of the upper contact part and connected to the lower contact part; A drain for allowing groundwater to flow into the empty space formed between the support parts; And an opening part which is an empty space formed between the upper contact parts and between the lower contact parts.

The drain member may include: an upper contact portion formed in an elongated plate shape and positioned at an upper side thereof; A plurality of downward contact parts formed in a long plate shape and positioned at a lower side thereof; A plurality of support parts extending in a plate shape downward in a long shape along a longitudinal direction of the upper contact part and connected to the lower contact part; A drain for allowing groundwater to flow into the empty space formed between the support parts; And an opening part which is an empty space formed between the down contact parts.

The support portion is provided downward on one side of the upper contact portion, the lower contact portion is provided on the lower side of the support portion, the other support portion is provided upward on the other side of the lower contact portion, and the other side above the other support portion. An upper contact portion is provided, and the upper contact portion, the support portion, and the lower contact portion are repeatedly provided in parallel.

The plurality of support parts include: an inclined support part connecting the upper contact part and the lower contact part in an inclined state, and a vertical support part connecting the upper contact part and the lower contact part in a vertical state. It is characterized by including any one or more.

The present invention has the effect of removing the groundwater flowing from the side to the basement floor of the building, or to relieve the lateral pressure of the groundwater, to reduce the thickness of the sidewall of the basement floor, and to facilitate the construction.

The present invention has the effect to remove the groundwater flowing into the basement floor below the building, to alleviate the upper water pressure.

The present invention has the effect of simplifying the construction of the drainage channel, it is possible to shorten the manufacturing cost and construction time.

In addition, the present invention has the effect of allowing a plurality of support portion to support the load firmly, while forming a wide drainage, it is possible to form a strong drainage.

1 is a view showing a reinforcement wall installation state of a typical basement floor.
2 is a view showing a state in which a drainage system according to the present invention is formed.
3 is a view showing an embodiment of a process for forming a drainage system according to the present invention.
4 is a plan view showing an embodiment of a process for forming a drainage system according to the present invention.
5 is a view showing an embodiment of a drainage system forming process according to the present invention in a cross-sectional view from the side.
6 is a view showing another embodiment of the process of forming the drainage system according to the present invention.
7 shows another embodiment of a drainage system according to the invention.
8 is a view showing an embodiment of the bottom connection structure of the drainage system according to the present invention.
9 is a view for explaining a state in which the basement reinforcement wall can be formed thin through the formation of the drainage system according to the present invention.
10 and 11 illustrate an embodiment of a drain member of the drain system according to the present invention.
12 and 13 illustrate an embodiment in which a drainage system according to the present invention is formed.

Hereinafter, the configuration of the present invention will be described in detail with reference to embodiments of the present invention shown in the accompanying drawings.

1 is a view showing a reinforcement wall installation state of a typical basement floor. Referring to Figure 1,

(a) is a basement part formed from the ground (G) down, according to the basement pit excavation, the basement (g) is located on the floor, the basement (g) has a variety of foundations, water wells, drainage facilities Formed and constructed. Sidewall B is exposed to the side, and lateral pressure by groundwater from the side is applied to sidewall B like P. As shown in FIG. This lateral pressure (P) is to cause a crack or breakage of the building, in order to correspond to the lateral pressure (P), as shown in (b), a thick width (W) of the reinforcement wall (A) on the side wall (B) side Forming and supporting method.

The larger the lateral lateral pressure (P) and the deeper the basement (g), the thicker the thickness (W) of the reinforcement wall (A) should be, and the more the basement should be dug to make room for this space. There is a problem that a considerable cost is required for construction.

2 is a view showing a state in which a drainage system according to the present invention is formed. Referring to FIG. 2, the present invention is installed in the up and down direction toward the side wall B, on the outer side of the side wall B, and is inclined along the side wall B when the side wall B is inclined.

Along the sidewall (B) of the basement (g), a structure for a plurality of drainage is formed, the geotextile 20 wound around the drainage member (not shown), the cover member 30 respectively covering the top The second cover member 40 is installed over a wide range. This installation can be applied to both the forward method and the reverse method for forming the basement layer, and may be configured in various directions, combinations, arrangements such as horizontal and vertical as long as it is installed on the outer surface of the side wall (B).

3 is a view showing an embodiment of a process for forming a drainage system according to the present invention. Referring to FIG. 3, (a) shows a state in which the drain member 10 is directly installed on the sidewall B. FIG. The drainage member 10 may include a drain board, a drain mat, a bundle pipe, a pipe, a drain plate, a hollow pipe, a hose, a plastic pipe, a formwork, a perforated pipe, or a non-coated pipe, and the material may also be wood, synthetic resin, or concrete block. Or styrofoam, you can choose a variety. That is, if the groundwater flows between the sidewall (B) and can form an empty space that can flow to the lower side can be used without limitation, usually use a drain board. As shown in the drawing, the drain board includes a protrusion 12 and a plate portion 14, and the space formed on the bottom surface (left side in the drawing) of the plate portion 14 by the protrusion 12 is a groundwater from the side wall B. It flows in and flows downward.

At this time, in order to block foreign substances in the groundwater flowing from the side wall (B), it is preferable to have a geotextile 22 on the side wall (B) as shown in (a) to act as a filter. Geotextiles generally use non-woven fabrics used in construction sites.

The geosynthetic fiber 20 surrounds the outer surface of the drainage member 10 as shown in (c), so that the geotextile 22 is positioned on the front side, and the geotextile 24 is also positioned on the rear side. Geosynthetic fiber 20 may be fixed to the side wall (B) in the field, the drain member 10 may be installed on the outside thereof, and after being attached to the drain member 10 from the beginning, disposed together with the drain member 10. Alternatively, or in a state wound on the outside of the drain member 10, it may be disposed together with the drain member (10).

Geosynthetic fiber 20, drain member 10 is preferably fixed to the side wall (B), nails, pins, staplers, tapes, adhesives and the like.

4 is a plan view showing an embodiment of a process for forming a drainage system according to the present invention. Referring to Figure 4, as shown in (a) is arranged a drainage member 10 wound around the geotextile 20 toward the side wall (B), as shown in (b) the cover member 30 can be covered have. Cover member 30 is formed wider than the drain member 10, it is preferable that both sides are fixed in close contact with the side wall (B) side. The cover member 30 generally uses PE film, vinyl, and the like, and serves to guide the groundwater introduced from the sidewall B by collecting the groundwater toward the drainage member 10. That is, the groundwater introduced from the side wall (B) is guided to the drain member 10 along the cover member 30 due to the cover member 30, and the induced ground water passes through the geotextile 20 to the inside of the drain member 10. It moves to and exits downward.

In addition, the cover member 30 may be provided in two or more layers as shown in (c), or may be formed to cover a plurality of drainage members 10. That is, the cover member 30 is formed to cover each of the drain members 10, and the second cover member 40 to cover the various drain member 10 and the cover member 30 again on the outside thereof is disposed, It is possible to direct the groundwater inflow for a wider area, or a full range of areas, to the drainage member 10 side.

5 is a view showing an embodiment of the drainage system forming process according to the present invention in a cross-sectional view from the side, Figure 6 is a view showing another embodiment of the drainage system forming process according to the present invention. Referring to FIG. 5, various network members 110, such as a wire mesh, called a wire mesh, are disposed on the basement sidewall B, and a cement mixture 120 such as shotcrete and mortar is poured thereon to have a predetermined thickness.

When the side wall B is a rock, it is difficult to install the drainage member 10, the cover member 30, etc., but when the shotcrete is poured on the wire mesh, the installation becomes easier. The cement mixture 120 may be applied directly or sprayed with a pump device, and the cement mixture layer 120 including the same may be expressed as pouring.

After the cement mixture layer 120 is formed by pouring, the drain member 10, the geotextile 20, the cover member 30 of the various embodiments as described above to be arranged, as shown in (b) In the case where the through hole 130 is formed in the middle of the cement mixture layer 120 in advance, smoother groundwater collection is possible.

Referring to FIG. 6, first, a plurality of through holes 130 may be formed in the cement mixture layer 120, and the drain member 10, the geotextile 20, and the cover member 30 may be disposed thereon. have.

7 shows another embodiment of a drainage system according to the invention. Referring to Figure 7, the drainage system of the present invention can be used in various sidewall reinforcement structures. As shown in (a), it is also possible to use the earthquake method of stacking the H beam 210 and the earthing plate blocking member 220 on the basement sidewall B, and the concrete piles 310 and 330 and H as shown in (b). In the CIP method of forming the wall of the soil through the beam 320, it is possible to install on the side wall (B) surface.

8 is a view showing an embodiment of the bottom connection structure of the drainage system according to the present invention. Referring to FIG. 8, the bottom of the drainage system of the present invention is connected to the permanent drainage system D formed on the bottom of the bottom layer as shown in (a) so that the groundwater flowing downward along the drainage member 20 may be discharged. It is possible to draw the water flowing in from the side wall downward as in the direction of the arrow. Permanent drainage system (D) is connected to a separate sump (not shown), it is a drainage structure for removing the upward pressure of the bottom of the basement.

In addition, as shown in (b), water can be drained to the trench as shown in the direction of the arrow by passing through the reinforcing wall A to the trench T side formed in the corner of the basement C side such as an underground parking lot.

9 is a view for explaining a state in which the basement reinforcement wall can be formed thin through the formation of the drainage system according to the present invention. Referring to Figure 9, (a) shows a state without a separate side wall drain system, (b) shows a state with a drain system of the present invention.

For the groundwater lateral pressure P1 from the side, the drainage system of the present invention allows the groundwater to be drained properly, so that the magnitude of the pressure is relatively reduced, such as P2. Accordingly, the thickness of the reinforcement wall was also conventionally required to be installed as a reinforcement wall A1 having a wide thickness W1. After the installation of the drainage system of the present invention, the reinforcement wall A2 having a relatively thin thickness W2 is provided. By allowing the to be provided, the gulting range by the reduced thickness is reduced, and the construction material and the construction period by that amount are reduced.

10 is a view showing a drain member according to another embodiment of the present invention. Referring to Figure 10, as well as the existing drain board can be used as a drain member, as shown in the drawing so that both the upper side and the lower side, the drain member having a separate upper contact portion 36 and the lower contact portion 38 Can also be used.

In addition, by utilizing such a drain member, it is also possible to form a permanent drain in the horizontal direction above the ground (g) as shown in FIG. In this case, the drain member may use a drain board or a drain member of FIG. 10 to be described later. Geotextiles 22 are laid or wound on the bottom or circumference of the drainage member 10, and the PE film, which is the cover member 30, is covered on the outside thereof, and then a concrete mixture is poured to form a concrete layer E on the upper side. A drainage space is formed inward. In addition, as described later, the horizontal drain member has a pressure reducing tube or a pressure reducing path that rises and falls above a certain height, so that the pressure reducing function can be performed with respect to the water pressure up to a certain height.

The plate-shaped drainage member has an outer shape of a rectangular parallelepiped as a whole, and its upper surface has a closed upper contact portion 36 formed in a long shape, and below it, plate-shaped support portions 32 and 34 formed side by side at regular intervals in the longitudinal direction. ) Are formed in a plurality of extensions. At the lower ends of the support parts 32 and 34, downward contact portions 38, which are formed in the horizontal direction and are in contact with the bottom surface, are formed.

An empty space is formed between the lower contact portions 38 of the plurality of support portions 32 and 34, which are called open portions, which allow ground water to flow from the lower side or the side wall to the inside when the opening portion is opened. Play a role. In addition, an empty space formed by the space between the lower side of the upper contact portion 36 and the lower contact portion 38 is called a drainage portion, and groundwater can flow through the drainage portion. It is preferable that such a plate drainage material is integrally formed with synthetic resin, plastics, etc., and in some cases, it may be formed with cement mixture or metal.

The upper contact portion 36 and the lower contact portion 38 is formed in a plate shape and elongated, and are provided on the upper side and the lower side so that a plurality of them are spaced from each other. The opening portion is formed therebetween, so that water can be introduced from above or below. In this case, water can be introduced from both the upper and lower sides. In some cases, the upper contact part 36 is largely left (not shown), and the lower contact part 38 is left in large numbers, and the upper side is closed and only the lower side is opened. It is also possible to allow water inflow only from below.

The support parts 32 and 34 are integrally connected between the upper contact part 36 and the lower contact part 38. As shown in the drawing, the vertical support parts 32 are provided at the left and right ends, and the center parts are repeated. It is preferable that a plurality of inclined support parts 34 are provided to form a V-shaped inclination, and the upper contact part 36 and the lower contact part 38 are interconnected, and the space therebetween can be utilized as a drainage path.

The inclined support part 34 serves to prevent buckling due to high loads when placing concrete due to the mutually symmetrical load transmission paths, and the upper contact part 36 and the lower contact part 38 are wound to the outside. The geosynthetic fiber (not shown) serves to prevent the sinking. Of course, the geotextile (non-woven fabric) wound on the outside is not used depending on the site situation, it is also possible to install the plate drainage directly, which is the same in other embodiments.

In addition, the left and right end portions of the vertical support portion 32 and the inclined support portion 34 and the upper or lower contact portions 36 and 38 include a right triangle and are integrally formed, thereby providing strong hydraulic pressure and concrete pressure from the upper and lower portions through this portion. It is desirable to be able to support it. Of course, the space between the vertical support part 32 and the inclined support part 34 may be filled with the same material, or may be separately configured.

Referring to FIG. 11, the width of the present invention may vary freely by pulling on both sides or pushing on both sides. That is, since the material of the plate drainage is made of synthetic resin or metal, it is flexible and flexible to some extent, so that the width of the socket into which the plate drainage is inserted is narrow, so that the width of the plate drainage can be reduced from the inside to both sides. If the width of the socket is to be wide or to be placed in the installation position, it is possible to spread it wide to both sides to ensure a wider drainage section. In addition, it is possible to determine the inflow of water, if a high water inflow is required to install the plate drainage spread to both sides as possible, if you want to maintain a low water inflow can be installed by narrowing the plate drainage to the inside. Such a width adjustment feature is impossible to achieve in the conventional S-shaped bundle tube or a conventional drainboard, and will have a unique effect.

On the other hand, in the case of the drain member disposed horizontally on the underground horizontal gulto finish surface, the path to extend to the upper side to have a certain height and down to the lower side on the way to the sump or the external drainage space may be formed have. That is, as shown in Figure 13, it will be able to properly combine the drainage structure of the present invention to have an upward path 16 facing upward and a downward path 18 connected at the upper end, and the upper path and the downward path is separate It is possible to use by connecting the pipe or use a U-shaped pipe, or to use the drain board by folding the U-shaped, or by using the drainage member of Figure 10 described above, combined, connected.

On the other hand, the present invention is not limited to the above-described typical preferred embodiment, it can be carried out in various ways without departing from the gist of the present invention various modifications, changes, substitutions or additions in the art Anyone who has this can easily understand it. It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, it is intended to cover various modifications within the scope of the appended claims.

G: Ground g: Underground
A: reinforcement wall B: side wall
P: Lateral water pressure 10: Drainage member
12: protrusion 14: plate
20: geotextile 30: cover member
40: second cover member 110: network member
120: cement mixture 130: through hole
210: H beam 220: blocking member
310: concrete pile 320: H beam
330: Concrete File

Claims (13)

(1) forming an underground portion below the ground, an underground surface of the bottom, and sidewalls on the side;
(2) disposing a drain member on the ground surface;
(3) connecting the drain member to a drainage channel or the sump side to discharge the water flowing from the drain member into the drainage channel or the sump;
After step (2), further comprising the step of pouring a cement mixture on the basement.
The method of claim 1,
After the drain member is provided in the step (2),
And a cover member disposed outside the drainage member than the drainage member.
The method of claim 2,
The drain member is disposed a plurality,
A plurality of the cover member is disposed on the outside of the plurality of drain members, respectively
And a second cover member is further disposed outside the plurality of drain members and the plurality of cover members.
(1) forming an underground portion below the ground, an underground surface of the bottom, and sidewalls on the side;
(2) disposing a drain member on the side wall;
(3) connecting the drainage member to the drainage channel or the sump side to discharge the water flowing from the drainage member to the drainage path or the sump well; forming an underground layer drainage system, characterized in that it comprises a .
The method of claim 4, wherein
In the step (2), the drain member is formed in the basement floor drainage system, characterized in that provided in the vertical direction on the side wall.
The method of claim 4, wherein
After the drain member is provided in the step (2),
And a cover member disposed outside the drainage member than the drainage member.
The method according to claim 6,
The drain member is disposed a plurality,
A plurality of the cover member is disposed on the outside of the plurality of drain members, respectively
And a second cover member is further disposed outside the plurality of drain members and the plurality of cover members.
The method of claim 4, wherein
Geotechnical fibers are disposed between the side wall and the drain member, or
In the step (2), geotextile is provided on the side wall side of the drainage member, or geotextile drainage system forming method characterized in that the use of the geotextile is wrapped around the outside of the drainage member.
The method of claim 4, wherein
After the step (1), the method further comprises the step of pouring a cement mixture on the sidewall, and the step (2) is performed after the cement mixture is poured.
The method of claim 4, wherein
After the step (1), arranging the network member in parallel with the sidewall; And
And placing the cement mixture towards the wire mesh, wherein the step (2) is performed after the cement mixture is poured.
11. The method according to claim 9 or 10,
Before step (2) above,
And forming a through hole in the cement mixture layer that is poured.
The method according to claim 1 or 4,
The drain member is:
A plurality of upper contact parts formed in an elongated plate shape and positioned on an upper side thereof;
A plurality of downward contact parts formed in a long plate shape and positioned at a lower side thereof;
A plurality of support parts extending in a plate shape downward in a long shape along a longitudinal direction of the upper contact part and connected to the lower contact part;
A drain for allowing groundwater to flow into the empty space formed between the support parts; And
And an opening part which is an empty space formed between the upper contact parts and between the lower contact parts.
The method according to claim 1 or 4,
The drain member is:
An upper contact portion formed in a long plate shape and positioned on an upper side thereof;
A plurality of downward contact parts formed in a long plate shape and positioned at a lower side thereof;
A plurality of support parts extending in a plate shape downward in a long shape along a longitudinal direction of the upper contact part and connected to the lower contact part;
A drain for allowing groundwater to flow into the empty space formed between the support parts; And
And an opening part which is an empty space formed between the lower contact parts.

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