KR20090011499U - A drainage seat using non-woven fabric having water way - Google Patents

Abstract

The present invention relates to a drainage material used in construction and civil engineering structures, in particular, the drainage is excellent in the water drainage by the constitution of the non-woven fabric constituting the drainage itself, and the stability of the structure is secured by reducing the water pressure by this excellent water supply It relates to a drain using a nonwoven fabric provided.

Description

A drainage seat using non-woven fabric having water way}

The present invention relates to a drainage material used in construction and civil engineering structures, in particular, the drainage is excellent in the water drainage by the constitution of the non-woven fabric constituting the drainage itself, and the stability of the structure is secured by reducing the water pressure by this excellent water supply It relates to a drain using a nonwoven fabric provided.

Conventionally, the nonwoven fabric of the smooth surface is mainly used as a drainage material for construction and civil engineering structures. For example, the nonwoven fabric of the smooth surface was used as the drainage layer (drainage material) of the landfill, and the conventional landfill has a drainage layer under the landfill to remove leachate. The leachate collected in the drainage layer is installed with a collecting pipe to purify the leachate into a septic tank. The drainage layer of the landfill uses a crushed gravel layer. In particular, the landfill has a problem in that the side is composed of slopes and thus it is difficult to construct a crushed gravel layer as described above. Based on these problems, Patent Registration No. 477265 proposes a landfill structure 2 installed on the slope 1 of a landfill as shown in FIG. 1, which prevents leachate from waste from infiltrating the soil. In order to prevent the anaerobicization of the landfill and to drain the leachate on the order layer 3, a drain layer 4 composed of a nonwoven fabric of a smooth surface is provided. A protective layer 5 is provided to prevent damage to the order layer 3 by sharp materials that may be included in the waste.

However, the drainage layer 4 composed of the nonwoven fabric of the smooth surface is where leachate flows through the gap therein, which is the case where the blockage caused by foreign matter and the flow of leachate are not smooth. The occurrence can damage the order layer 3. In addition, due to the characteristics installed on the slope, the drainage layer 4 may be slipped on the order layer 3, thereby causing deformation of the shape.

Accordingly, the present invention has been devised to solve the problems caused by the prior art, and has a plurality of concave drainage channels in the nonwoven fabric to improve the water-permeability of the nonwoven fabric, and can reduce the occurrence of water pressure by improving the water-permeability. It is an object of the present invention to provide a waterproof material which can be prevented from slipping at the top of the structure.

The present invention is a drain material using a nonwoven fabric for construction and civil engineering structures to achieve the above object, the nonwoven fabric is characterized in that it comprises a plurality of drainage grooves formed in one surface.

Each of the drains may be configured in parallel in one direction, and the drains may be formed in a lattice shape.

In the case of the lattice, it is preferable that a round is formed at each corner portion that intersects.

In addition, an auxiliary nonwoven fabric having a flat shape may be attached to one surface of the nonwoven fabric formed with a drainage path.

In addition, it is reasonable that the other surface of the nonwoven fabric further comprises an adhesive layer composed of a fibrous layer and a sand layer to prevent slippage on a slope or the like.

The present invention by the configuration as described above provides the effect of improving the durability of the structure in accordance with the smooth drainage and water pressure reduction by ensuring the water supply by the drainage is formed in the nonwoven fabric itself.

In addition, by forming an auxiliary nonwoven fabric on the upper portion of the nonwoven fabric to improve the water-permeability as well as to filter out foreign matter primarily, it provides an effect of preventing damage to the structure of the nonwoven fabric and its lower portion.

In addition, the adhesion layer is formed on one surface of the nonwoven fabric, thereby providing an effect of preventing sliding with the structure.

1 is a side cross-sectional view showing a state in which the drain material according to the prior art is installed on the landfill slope,

2A and 2B are each a perspective view showing an embodiment according to the direction of the drainage in the drainage material using a non-woven fabric with a drainage in accordance with the present invention,

3 is an exploded perspective view illustrating an embodiment in which the auxiliary nonwoven fabric is further configured in FIG. 2B;

4 is an exploded perspective view illustrating a case in which a fiber layer and a sand layer are further configured in FIG. 3;

Figure 5 is a side cross-sectional view showing a state in which the present invention is used on the slope of the landfill.

＊ Explanation of symbols on main parts of drawing

10 nonwoven fabric 11 drainage

20 Auxiliary nonwoven fabric 30 Adhesion layer

31 Fibrous layer 32 Sand layer

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1,2,3,4,5.

2a and 2b are each a perspective view showing an embodiment according to the direction of the drainage in the drainage material using a non-woven fabric with a drainage channel formed in accordance with the present invention, Figure 3 is an exploded perspective view showing an embodiment in which the auxiliary nonwoven fabric further configured in Figure 2b 4 is an exploded perspective view illustrating a case in which a fiber layer and a sand layer are further configured in FIG. 3, and FIG. 5 is a side cross-sectional view illustrating a state in which the present invention is used on a slope of a landfill.

The present invention prevents the inflow of earth and sand, foreign matters in the construction, civil engineering structures, such as tunnel inner wall, retaining wall, slope of the landfill, and the drainage path (11a, 11b) is formed on the nonwoven fabric 10 to enable the smooth drainage of inflow water, The drainage passages 11a and 11b are formed to be recessed at regular intervals on the one surface 12 of the nonwoven fabric 10 as shown in FIGS. 2A and 2B. In this configuration, the nonwoven fabric 10 is formed by pressure from the outside. Even when the compression is secured to secure a space that maintains the water-permeable capacity, to reduce the pressure acting on the nonwoven fabric 10, the durability of the structure to be installed on the upper surface of the nonwoven fabric, such as concrete lining due to water pressure due to the water-lowering capacity of the nonwoven fabric 10 is reduced In order to prevent the fall, the interval between the drainage passages (11a, b) is preferably configured to withstand the load when the upper structure is destroyed by at least water pressure.

The drainage channels 11a and b may be configured in various ways. For example, a plurality of drainage channels 11a and b may be configured on the bottom surface 12 of the nonwoven fabric 10 by hot rolling using an uneven roller. .

The drainage passage (11a) can be configured to be parallel to each of the drainage passage as shown in Figure 2a, when this is installed in the slope structure by this configuration so that the inlet flows freely down the respective drainage passage (11a) automatically It can be drained to the bottom.

Meanwhile, the drainage path 11b may be formed in a lattice shape as shown in FIG. 2B. When the drainage path 11b is installed in the slope structure, the inflow water may flow to the bottom surface through the lattice drainage path 11b. will be. That is, in the case of the inflow water 11a shown in FIG. 2A when only the inflow water flows in a portion, the inflow water will be concentrated by the drainage path 11a of the inflow water portion, so that the water pressure is excessively applied to the portion. There is a problem that can reduce the durability of the structure in the bar, even if the inflow only flows in part of the grid-shaped drainage path (11b) in the inlet water easily spreads in the transverse direction and the longitudinal direction is drained to the water pressure in the part It will be able to prevent the concentration of.

It is also reasonable that the drainage passage 11b is configured such that a round 14 is formed at each corner portion that intersects in a grid as shown in FIG. 2B. In other words, each of the corner portions in the protruding portion 13 formed by the orthogonal drainage passage 11b is composed of a round 14. By configuring in this way, it is possible to prevent the occurrence of water pressure due to the generation of vortex in a portion orthogonal to the drain passage 11b.

The nonwoven fabric 10 is a known one, it is preferable to use the particle size of the nonwoven fabric 10 according to the ground classification in order to prevent the blockage phenomenon. Here, the occlusion phenomenon refers to a phenomenon in which the soil particles are separated from the soil matrix and are moved by the flow of fluid in the gap of the nonwoven fabric and then fill the gap of the nonwoven fabric 10, thereby reducing the water permeability of the nonwoven fabric 10. It is reasonable to use by adjusting the particle diameter of the nonwoven fabric 10 in accordance with the ground classification to prevent the water pressure is generated and eventually to reduce the durability of the structure.

In addition, the present invention proposes a case in which the auxiliary nonwoven fabric 20 is further configured in the nonwoven fabric 10 in which the drainage passages 11a and b are formed, as shown in FIG. 3. That is, as shown in FIG. 3, the auxiliary nonwoven fabric 20 having a flat shape is further formed on the surface in which the drainage passages 11a and b are recessed in the nonwoven fabric 10 to form a double structure. The secondary nonwoven fabric 20 primarily filters foreign matters such as earth and sand, and the inflow of the foreign matters is drained through the nonwoven fabric 10, in particular, the drainage paths 11a and b, thereby causing clogging due to the foreign matter on the nonwoven fabric 10. As a result, it is possible to prevent the water supply capacity from decreasing. In addition, when the present invention is installed on the slope of the landfill as shown in FIG. 5, the auxiliary nonwoven fabric 20 prevents the order layer 3 formed on the other surface of the nonwoven fabric 10 from being damaged by the loading load and sharp foreign objects. It is to filter in advance that the order layer 3 is damaged by. Therefore, the particle diameter of the auxiliary nonwoven fabric 20 is configured to be larger than the particle diameter of the nonwoven fabric 10, it will be reasonable to use as a primary purpose to filter out foreign particles with large particles.

On the other hand, in the present invention, when the present invention is installed in a structure that forms a slope, the attachment layer 30 composed of a fiber layer 31 and a sand layer 32 is formed on the other surface of the nonwoven fabric 10 to prevent slippage. Can be configured. That is, as shown in FIGS. 4A and 4B, the sand layer 32 is formed by forming a fiber layer 31 on a surface of the nonwoven fabric 10 that is in contact with a structure such as a slope and applying a sand layer 32 on the fiber layer 31. Although not shown in the drawings, the drainage layer formed by the nonwoven fabric 10 and the auxiliary nonwoven fabric 20 may be prevented from slipping on the structure by friction between the joining surfaces of the structure.

The fiber layer 31 is attached to the other surface of the nonwoven fabric 10 so that the fibers cross each other, as shown in Figure 4b, if the inflow or outflow of moisture from the other surface of the nonwoven fabric 10 according to the type of the structure is the fiber layer In order to form (31), the fiber is intermittently attached using an adhesive or the like, and when waterproofing is required on the other side of the nonwoven fabric 10, the fiber is densely attached using an adhesive or the like. It is preferable to use an adhesive agent. Preferably, a urethane adhesive having enhanced underwater adhesion durability and waterproofness may be used. The sand layer 32 is appropriate to selectively apply the density in consideration of the back state of the structure on top of the fiber layer 31.

Hereinafter, with reference to Figure 5 describes the operating state when the subject innovation is installed on the slope of the landfill.

First, the water-repellent material layer 3 is installed on the slope 1 of the landfill, and the present invention is installed on the upper layer 3. In this case, the present invention is to prevent the anaerobic of the landfill in the upper layer 3, it is possible to quickly drain the leachate from the landfill, which will be described in more detail leachate from the landfill to the secondary nonwoven fabric (20) Inflow and some inflow water flows to the bottom through the secondary nonwoven fabric 20, the foreign matter large particles from the leachate is filtered through the secondary nonwoven fabric 20, the nonwoven fabric 10 and the order layer ( It is possible to prevent damage to 3). Leachate filtered by the foreign material is primarily flowed to the bottom through the drainage channels (11a, b) of the nonwoven fabric 10, and this smooth leachate flow can prevent the damage to the order layer (3) by the water pressure, As a whole, the elasticity of the auxiliary nonwoven fabric 20 and the nonwoven fabric 10 itself, and in particular, the load reduction due to the concave drainage channels 11a and b are prevented from lowering the durability of the structure (order layer). In addition, the present invention constitutes an adhesion layer 30 on the lower (other) surface of the nonwoven fabric 10 to prevent defects that may be caused by the nonwoven fabric 10 sliding along the smooth surface of the order layer 3. Thus, the sand layer 32 applied to the fiber layer 31 enables firm attachment to the order layer 3.

The above description has been described as an example by the embodiment of the present invention, but is not limited to the above embodiments and those skilled in the art will be able to realize that various changes and modifications can be made without departing from the technical spirit of the present invention. . Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description in the specification but should be defined by the claims.

Claims (6)

In drainage using non-woven fabric for construction and civil engineering structures, The nonwoven fabric is a drain material using a non-woven fabric with a drainage, characterized in that it comprises a plurality of drainage is formed in one surface concave. The method of claim 1, The drainage using a nonwoven fabric formed with a drainage, characterized in that the drainage is configured in parallel in one direction. The method of claim 1, The drainage material using a non-woven fabric having a drainage path, characterized in that formed in a grid. The method of claim 3, The drainage drainage material using a non-woven fabric formed with a drainage, characterized in that the round is formed at each corner portion intersecting the grid. The method of claim 1, A drainage material using a nonwoven fabric having a drainage path, characterized in that the auxiliary nonwoven fabric having a flat shape is attached to one surface on which the drainage path is formed in the nonwoven fabric. The method of claim 5, The other side of the nonwoven fabric drainage material using a non-woven fabric with a drainage path, characterized in that the adhesion layer consisting of a fiber layer and a sand layer is further configured.