KR101282340B1 - Drain board of water flow layer one body type and, method for permanent drain used of that - Google Patents

Abstract

The present invention relates to a water discharge layer integrated drainage material and a permanent drainage method using the same, comprising: a drain pipe installed horizontally on a reference surface of an excavated foundation floor; A water passage layer in close contact with and installed on both sides of the drain pipe; The water supply layer integral drainage material including a nonwoven fabric integrated with the drainage pipe and the bottom of the water supply layer, and a permanent drainage method using the water drainage material are provided. Accordingly, the workability is improved, the air is shortened and the construction cost is reduced, as well as the ground water induction performance. This improving effect is provided.

Description

Drain board of water flow layer one body type and, method for permanent drain used of that}

The present invention relates to a water distribution layer integrated drainage material and a permanent drainage method using the same, and more particularly, the water flow layer and the drainage material are integrally formed in a horizontal direction, and are installed on the final excavation surface without additional trench trenches to improve workability. In addition, the present invention relates to a water flow-integral drainage material having a reduced construction cost and a permanent drainage method using the same.

In general, a large building or underground structure can handle the uplift pressure acting on the foundation floor in consideration of site geology and construction conditions when the final floor is installed below the groundwater level. It must be constructed.

Conventionally, the method of treating the upstream pressure acting on the foundation floor includes a load loading method for adjusting the number of layers or the foundation thickness of an underground structure, a lock anchor installation method for installing a rock anchor at the foundation of a building, or a building. There is a drainage pipe method that induces the removal of upward water pressure by installing a drainage pipe at the periphery or under the foundation.

The above method of imposing load is to increase the floor pressure or foundation thickness of the building thicker than normal to suppress upward water pressure, so the construction is very easy, but the construction cost is high, and when the number of floors of the building is more than the middle floor height according to the height restriction Not only is reduced, but when the groundwater level rises above the expected value, there is no measure at all, and there is a disadvantage that the destruction of the underground structure is easily caused by the groundwater pressure generated before the concrete curing of the underground structure.

In addition, the lock anchor installation method is a method for fixing the building so that the building does not float by installing a lock anchor on the foundation, it is integrated with the base rock of the underground structure to prevent uneven settlement, and to prevent the fall of the building in the event of an earthquake. Although there is an advantage, the perfect construction of the rock anchor can not be guaranteed, if the steel of the rock anchor is corroded and sheared, the building may be broken by the annual breakdown, and prevent the initial destruction by the hydraulic pressure of the underground structure concrete There is a disadvantage.

On the other hand, the drain pipe method is a method for more stably solving the upwater pressure problem acting in proportion to the high groundwater level, by forming an artificial drainage layer under the foundation floor to collect the groundwater flowing into the site into the sump to pump regularly In order to prevent positive pressure from acting on the foundation floor, it is applied to most new buildings.

As the drainage pipe method, various construction methods are proposed according to the method of connecting the drainage pipe. In particular, as in Patent Registration No. 10-524136, plate drainage and trenches are formed under the foundation floor, and a hole is installed in the trench. There is a foundation floor permanent drainage structure using the respective trench and drainage to remove the positive pressure acting on the foundation floor by collecting and pumping the groundwater flowing into the building collection basin, and its construction method.

Referring to Figures 1 to 3 the configuration of the foundation floor permanent drainage structure using the respective trench and drainage material as follows.

As shown, in the prior art, the foundation floor permanent drainage structure using a trench and drainage, the trench 10 formed by further excavating the foundation ground in the building, and geosynthetic fibers on the bottom surface of the trench 10 A geotextile layer 12 formed and installed, a first gravel layer 14 formed by first placing gravel on the geotextile layer 12, a perforated pipe 16 provided on the first gravel layer 14, and A second gravel layer 18 formed by secondary installation of gravel on the perforated pipe 16, a plate drainage material 22 installed on the second gravel layer 18 and the bottom surface of the foundation, and the plate shape; And a polyethylene film layer (PE film) 24 provided on the drain 22.

Here, the upper part of the polyethylene film layer 24 may be cast and cured by throwing concrete and bottom slab, and the end of the perforated pipe 16 may be positioned in the sump.

The construction method of the foundation floor permanent drainage structure using the respective trench and drainage having the above configuration will be described with reference to FIG. 4.

First, an additional trench for forming a trench, which is a drainage channel, is performed, and a step of laying geotextiles on the upper surface of the trench is performed. Then, aggregate (crushed stone) is firstly laid on the trench, and after the perforated pipe is installed thereon, aggregate (crushed stone) is secondly laid again.

Next, ground the floor, spread the plate drainage (after laying the ground fiber), PE film, install the sump connecting pipe at the end of the perforated pipe, and finally cast concrete to cure. .

According to each of the foundation and permanent drainage structure using the trench and drainage material and the construction method thereof, since the main drainage is formed lower than the bottom layer, the upstream pressure acting on the foundation slab can be minimized, and the main drainage is formed in the trench. As a result, the cross-sectional area of the water passage is secured, so that an influent can be induced.

However, if the ground to be constructed is a rock, there is a problem that a lot of difficulties and economic problems occur in additional excavating the main drainage (trench).

In addition, the construction is carried out in several stages, such as digging a trench, which is the main drainage channel, laying aggregates such as crushed stone in the trench, embedding perforated pipes, and laying geotextiles and PE sheets on time. There was also a problem of poor workability.

In addition, each material, ie, geotextiles, drainage (drainboard), perforated pipes, aggregates, and the like must be transported separately and then installed in turn on the bottom of the foundation floor, thereby reducing the efficiency of construction. There was also a problem that the air is delayed, the construction cost is high.

The present invention has been devised in view of the above problems, and by installing a drainage layer integral drainage directly on the bottom of the foundation, without additional excavation of the main drainage (trench) between the foundation and the foundation, improving workability and safety It is an object of the present invention to provide a monolithic drainage material and a permanent drainage method using the same.

In addition, the present invention by applying the integrated geotextile, water layer, drain pipe, the water flow layer integrated drainage material that can simplify the transportation and thereby shorten the air and reduce the construction cost according to the construction and permanent drainage method using the same There is also a purpose to provide.

In addition, the present invention provides a water-permeable layer having a plurality of porous bodies formed with a plurality of water-permeable holes based on the central axis, instead of the conventional drainboard, and wrapped the porous bodies with geosynthetic fibers, the water-permeable layer of the drain pipe By integrating the water passage layer and the drainage pipe by the main frame with nonwoven fabric on the bottom thereof while being in close contact with both sides, the water passage layer integrated drainage material which increases the water supply capacity and improves the efficiency of the permanent drainage, and the permanent drainage method using the same The purpose is to provide.

In addition, the present invention, in place of the conventional drain board, to provide a water-repellent layer of the structure of the geo-fiber wrapped in the geosynthetic fibers laminated to a constant thickness again, while the water-transparent layer is in close contact with both sides of the drain pipe and at the same time It is also an object of the present invention to provide a water discharge layer integrated drainage material and a permanent drainage method using the same, which are integrated by a main frame having a nonwoven fabric attached to the bottom thereof, thereby increasing the water supply capacity and improving the efficiency of the permanent drainage.

Water supply layer integrated drainage material according to the present invention for achieving the above object,

A drain pipe installed horizontally on a reference surface of the excavated foundation floor; A water passage layer in close contact with and installed on both sides of the drain pipe; It characterized in that it comprises a non-woven fabric integrated with the drain pipe and the bottom portion of the water passage.

Here, it is preferable that the drain pipe is composed of a frame in which both the upper and lower surfaces, the front and rear surfaces and the left and right surfaces are opened, and the geotextiles surrounding the upper and lower surfaces and the left and right surfaces of the frame.

On the other hand, the water-transmitting layer is composed of a plurality of porous bodies formed with a plurality of through-holes based on the central axis, geosynthetic fibers surrounding the porous bodies, or laminated or densely dense entangled geosynthetic fibers, and the geosynthetic fibers It may be composed of geotextiles surrounding the outer edge of the.

In addition, it is preferable to further include a main frame for tying the drain pipe and the water passage layer integrally.

In this case, it is preferable that the main frame has a drainage pipe space for inserting and seating the drainage pipe in the middle portion, and a water passage layer space for inserting and seating the water transport layer on both sides, so that three rows of spaces are formed in a horizontal row. More preferably, a plurality of the drain pipe space portion and the water passage layer space portion are continuously formed in a vertical row.

In addition, the main frame has an upper frame formed in the form of a checkerboard to form a drain pipe space portion and a water passage layer space in a plurality of rows, and the lower frame formed to correspond to the form of a checkerboard at a position spaced apart at regular intervals in the longitudinal direction with the upper frame And vertical frames connected vertically between intersections of the upper and lower frames.

Here, in the state in which the drain pipe and the water pass layer are inserted and seated respectively in the drain pipe space portion and the water passage layer space portion of the main frame, the interval between the lower frame is different so as to prevent the drain pipe and the water pass layer from falling down. It is preferred that they are formed at wider intervals than the frames.

On the other hand, the permanent drainage method using the water distribution layer integrated drainage material according to the present invention, in the construction of the permanent drainage using the water supply layer integrated drainage, (a) arranging the excavation and foundation construction reference surface; (b) covering the water passage layer-integrated drain on the reference surface; (c) covering the PE film on the water passage layer integral drain; (d) pouring the discarded concrete on the PE film, characterized in that it comprises the step of curing.

Here, in the water collecting layer integrated drain, it is preferable that one side end of the drain pipe in close proximity to the sump well further comprises a step of connecting with the sump connecting pipe.

As described above, according to the water-integrated drainage material according to the present invention and the permanent drainage method using the same, by transporting the material-integrated drainage material directly to the final excavation surface without additional excavation of the main drainage (trench), material transport According to the simplification of the construction, the construction is improved by the simplicity of construction, and the economical benefits are generated such that the construction time is reduced by reducing the air, and the safety is provided.

In particular, the present invention is provided with a plurality of porous bodies formed with a plurality of passage holes based on the central axis, in place of the conventional drain board, provided with a water-permeable layer of the structure wrapped around the porous bodies, the water-through layer is the By being in close contact with both sides and the water layer and the drain pipe are integrated by the main frame attached to the bottom of the non-woven fabric, the water supply capacity is increased and the efficiency of permanent drainage is also provided.

1 is a cross-sectional view showing a conventional foundation floor permanent drainage structure.
Figure 2 is a longitudinal cross-sectional view showing a conventional foundation floor permanent drainage structure.
Figure 3 is a partial perspective view showing a conventional foundation floor permanent drainage structure.
Figure 4 is a process flow diagram illustrating a conventional method for permanently draining the foundation floor.
Figure 5a is a perspective view of the water distribution layer integrated drainage for the foundation floor permanent drainage according to the first embodiment of the present invention.
5B is a cross-sectional view of FIG. 5A.
FIG. 6 is a perspective view illustrating a frame of the water flow layer-integrated drain in FIG. 5. FIG.
Figure 7a is a perspective view showing the structure of the drain pipe in FIG.
FIG. 7B is a cross sectional view of FIG. 7A;
Figure 8a is a perspective view showing the structure of the water transmission layer in FIG.
8B is a cross-sectional view of FIG. 8A.
9A is a perspective view of a porous body applied to the water passage layer.
9B is a sectional view of FIG. 9A;
Figure 10a is a perspective view of the water distribution layer integrated drainage for the foundation floor permanent drainage in accordance with a second embodiment of the present invention.
10B is a cross sectional view of FIG. 10A.
FIG. 11A is a perspective view illustrating a structure of a water transmission layer in FIG. 10. FIG.
FIG. 11B is a cross sectional view of FIG. 11A;
12A and 12B are cross-sectional configuration diagrams illustrating the construction of the foundation floor permanent drainage method using the water flow layer-integrated drainage material according to the first and second embodiments of the present invention.
Figure 13 is a flow chart of the foundation floor permanent drainage method using a water distribution layer integrated drainage material according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

≪ Embodiment 1 >

Figure 5a is a perspective view of the water layer integrated drainage for permanent floor drainage according to the first embodiment of the present invention, Figure 5b is a cross-sectional configuration of Figure 5a, Figure 6 is a frame of the water layer integrated drainage in Figure 5 7A is a perspective view illustrating the structure of a drain pipe in FIG. 5, and FIG. 7B is a cross-sectional view of FIG. 7A.

FIG. 8A is a perspective view illustrating the structure of the water transmission layer in FIG. 5, FIG. 8B is a cross-sectional view of FIG. 8A, FIG. 9A is a perspective view of a porous body applied to the water transmission layer, and FIG. 9B is a cross-sectional view of FIG. 9A.

As shown, the water distribution layer integrated drainage material 100 according to the present invention includes a water drainage pipe 110 having a substantially rectangular cross-sectional shape, and a water supply layer 120 that is closely attached to and installed on both sides of the drainage pipe 110. .

As shown in Figure 7a and 7b, the drain pipe 110 is a frame 112, both the upper and lower, front and rear and left and right sides open, and geotextiles that surround both the upper and lower and left and right sides of the frame 112 ( 114).

In addition, as illustrated in FIGS. 8A and 8B, the water-permeable layer 120 surrounds the porous bodies 122 and the porous bodies 122 formed with a plurality of water-permeable holes 122a around the central axis thereof. It is composed of geotextiles (124).

Here, the porous body 122, as shown in Figure 9a and 9b, because a plurality of through-holes (122a) are formed based on the central axis, even if the groundwater flows in either direction can flow out in various directions The water permeability is very excellent.

For reference, in the exemplary embodiment of the present invention, the porous body 122 is shown as an example of a circular ball-shaped sphere, but if a plurality of through-holes are formed based on the central axis, a polygonal shape instead of a sphere may be applied. will be.

On the other hand, as shown in Figure 6, the water flow layer integrated drain material according to the present invention includes a main frame 130 for tying the water pipe and the water flow layer integrally.

The main frame 130 has a drainage pipe space portion 130a for inserting and seating a drainage pipe in the middle portion, and a water passage layer space portion 130b for inserting and seating the water flow layer on both sides, and thus, three rows in a horizontal row. The space portion of is formed.

Here, each of the drain pipe space portion 130a and the water passage layer space portion 130b may be formed in a plural number in a row in the vertical row. In the exemplary embodiment of the present invention, three rows are formed in a row.

Accordingly, the drain pipe 110 composed of the frame 112 and the geotextiles 114 is inserted into the drain pipe space 130a of the main frame 130 and seated therein, and the water passage composed of the porous body 122 and the geotextiles 124 is provided. When the layer 120 is inserted into and seated in the water passage layer space portion 130b of the main frame 130, the water passage layer integrated drainage 100 is completed as shown in FIGS. 5A and 5B.

In this case, the main frame 130 is a plurality of rows of the upper frame 132 formed in a substantially checkerboard form to form the drainage pipe space 130a and the water passage layer space 130b, spaced apart from the upper frame by a predetermined interval It is composed of a lower frame 136 and a vertical frame 134 vertically connected between the intersection of the upper and lower frames 132, 136 formed to correspond to the shape of a roughly checkerboard.

Therefore, both the drain pipe space 130a and the water passage layer space 130b of the main frame 130 are in a state where the left and right sides and the front and rear surfaces are open, and each of the drain pipes is formed through any one of these open surfaces. The 110 and the water passing layer 120 may be inserted and seated.

delete

Meanwhile, the nonwoven fabric 140 is attached to the bottom surface of the main frame 130 into which the drain pipe 110 and the water pass layer 120 are inserted and seated in the drain pipe space 130a and the water pass layer space 130b, respectively. As a result, the drain pipe 110 and the water transmission layer 120 are integrated by the main frame 130 to which the nonwoven fabric 140 is attached and constitute one set.

Here, the nonwoven fabric 140 is attached to any one of the upper surface and the bottom surface of the main frame 130, the surface on which the nonwoven fabric 140 is attached to form a bottom surface, the attachment is attached by any method Although it may be sufficient, it is preferable to attach so that it may be integrated by heat welding.

As such, when the nonwoven fabric 140 is integrated with the bottom surface of the main frame 130 by thermal fusion, the binding force between the main frame 130 and the drain pipe 110 and the water passage layer 120 is increased to further form one set. Integration is achieved.

Referring to FIGS. 12A and 13, the permanent drainage method using the water-permeable-bed integral drainage having the above configuration is as follows.

First, the step of arranging the excavation and foundation construction reference plane is carried out. Next, the water layer integrated drainage material 100 is laid on the reference surface, PE film (not shown) is placed on the water supply layer integrated drainage material 100, and then the discarded concrete (not shown) is laid. Construction of the floor permanent drainage method is completed.

In this case, the water-permeable layer integral drainage material 100 may be provided with several sets to extend in the longitudinal direction, or may be laid on the basic construction reference plane by extending in a transverse direction in a portion. One end of the drain pipe close to the sump may be connected to the sump connecting pipe (not shown).

As described above, the water flow layer integrated drainage material 100 according to the first embodiment of the present invention is formed by the water flow layer 120 on both sides of the drain pipe 110 side by side integrally, so that it is not necessary to break trenches separately. This is improved, moreover, the drainage pipe 100, the water passing layer 120 and the nonwoven fabric 140 are integrated into one set, so that it is easy to transport them to the construction site, and the drainage material 100 is integrated with the base floor reference plane. ), The workability is greatly improved by laying out at once.

Here, the water passage 120 layer is composed of a plurality of porous bodies 122 having a plurality of water passages 122a formed on the basis of the central axis thereof, and geotextiles 124 surrounding the porous bodies 122, the bottom Improved water flow of the groundwater flowing from the bottom of the foundation, further improved groundwater induction performance without having to dig the trench and install aggregate in the trench.

≪ Embodiment 2 >

FIG. 10A is a perspective view of a water collecting layer integrated drainage material for permanently draining a foundation floor according to a second embodiment of the present invention, FIG. 10B is a cross-sectional configuration diagram of FIG. 10A, and FIG. 11A is a perspective view illustrating a structure of a drain pipe in FIG. 10. FIG. 11B is a cross sectional view of FIG. 11A.

The water flow layer integrated drainage material for the foundation floor permanent drainage according to the second embodiment of the present invention differs only in the configuration of the water flow layer integrated drainage material and the water flow layer according to the first embodiment, and the rest of the configuration and installation relationship and operation. Since the relationship is the same, repeated descriptions will be omitted.

First, as shown in FIGS. 10A and 10B, the water collecting layer integrated drainage material 100 according to the second embodiment of the present invention also has a drainage pipe 110 having a substantially rectangular cross-sectional shape, and on both sides of the drainage pipe 110. It includes a water-tight layer 150 is in close contact, installed.

Here, the water-permeable layer 150 is composed of a geosynthetic fiber 152 that is laminated or entangled with a high density, and a geotextile 154 surrounding the outer edge of the geotextile 152.

Referring to FIGS. 12B and 13, a permanent drainage method using a water flow layer-integrated drainage having the above configuration is as follows.

First, the step of arranging the excavation and foundation construction reference plane is carried out. Next, the water layer integrated drainage material 100 is laid on the reference surface, PE film (not shown) is placed on the water supply layer integrated drainage material 100, and then the discarded concrete (not shown) is laid. Construction of the floor permanent drainage method is completed.

In this case, the water-permeable layer integral drainage material 100 may be provided with several sets to extend in the longitudinal direction, or may be laid on the basic construction reference plane by extending in a transverse direction in a portion. One end of the drain pipe close to the sump may be connected to the sump connecting pipe (not shown).

As described above, the water-permeable layer integrated drain material 100 according to the present invention is formed by the water-flow layer 150 on both sides of the drain pipe 110 side by side integrally, so that the workability does not have to be trenched separately, and the workability is improved. The drainage pipe 110, the water passing layer 150, and the nonwoven fabric 140 are integrated into one set, so that it is easy to transport them to the construction site, and the drainage material 100 integrated into the foundation floor reference surface at one time is provided. By laying down, the workability improves very much.

Here, the water-permeable layer 150 is composed of a geosynthetic fiber 152 laminated or densely formed in an entangled state, and a geosynthetic fiber 154 surrounding the outer edge of the geotextile 152, at the bottom of the bottom foundation. Improved groundwater permeability improves groundwater induction performance without additional trench breaks and aggregates in trenches.

Technical ideas described in the embodiments of the present invention as described above may be implemented independently, or may be implemented in combination with each other. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art. It is possible. Accordingly, the technical scope of the present invention should be determined by the appended claims.

100: water supply layer integral drain 110: drain pipe
112: frame 114: geotextile
120,150: Water passage layer 122: Porous body
122a: water hole 124: geotextile
130: main frame 130a: drain pipe space
130b: water passage layer space 132: upper frame
134: vertical frame 136: lower frame
140: nonwoven fabric 152: geotextile
154: Geotextile

Claims (11)

A drain pipe installed horizontally on a reference surface of the excavated foundation floor;
It is installed in close contact with both sides of the drain pipe, and a plurality of porous bodies formed with a plurality of through-holes based on the central axis, and a water-permeable layer consisting of geotextiles surrounding the porous bodies;
And a non-woven fabric integrally formed on the bottom surface of the drain pipe and the water flow layer.
The method of claim 1,
The drain pipe,
A water passage layer-integrated drainage, comprising a frame in which both the upper and lower surfaces, the front and rear surfaces, and the left and right surfaces are opened, and the upper and lower surfaces of the frame and the geotextiles surrounding the left and right surfaces.
delete delete The method of claim 1,
Water flow layer integrated drainage material further comprises a main frame for tying the water pipe and the water flow layer integrally.
6. The method of claim 5,
The main frame has a drainage pipe space for inserting and seating the drainage pipe in the middle portion, and a water passage layer space for inserting and seating the water transport layer on both sides, so that three rows of spaces are formed in a horizontal row. Integral drainage.
The method according to claim 6,
The drainage pipe space portion and the water passage layer space portion, the water passage layer integrated drainage material, characterized in that formed in a plurality in a row in a row.
The method according to claim 6,
The main frame has an upper frame formed in a checkerboard form to form a drain pipe space portion and a water passage layer space portion in a plurality of rows;
A lower frame formed to correspond to a shape of a checkerboard at a position spaced apart at a predetermined interval in the longitudinal direction from the upper frame,
Water flow layer integrated drainage, characterized in that consisting of vertical frames connected vertically between the intersection of the upper, lower frames.
delete In constructing permanent drainage using the water flow-integrated drainage material in any one of Claims 1-2, 5-8,
(a) arranging excavation and foundation construction planes
(b) covering the water passage layer-integrated drain on the reference surface;
(c) covering the PE film on the water passage layer integral drain;
(d) a permanent drainage method using a water-permeable layer integral drainage, comprising the step of curing by casting the discarded concrete on the PE film.
The method of claim 10,
In the water distribution layer integrated drainage, one end of the drain pipe adjacent to the sump is connected to the sump connecting pipe further comprising a permanent drainage method using a water distribution layer integrated drain.

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