JP2971674B2 - Drainage structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel drainage structure. For example, for example, formed on a structure such as an artificial ground, a basement, an underground parking lot, and the like, rainwater or the like falling on the structure can penetrate from joints, and drainage of the permeated rainwater or the like can be stably performed over a long period of time. It is a drainage structure that can be performed and is easy to maintain.

[0002]

2. Description of the Related Art Water, such as rainwater, that accumulates on structures such as artificial ground, basements, and underground parking lots not only reduces the durability of the structures, but also causes rainwater to enter the structures. Therefore, it is desired to drain the water efficiently.
On the other hand, when an exterior part such as a sidewalk is formed on the above structure, it is functionally desired that rainwater falling on the exterior part permeates and drains quickly without flowing over the surface.

Conventionally, a drainage structure as shown in the sectional view of FIG. 2 has been proposed to meet such a demand. Such a drainage structure includes an exterior material layer 2, a concrete layer 3, a water-permeable layer 11 made of gravel, and a waterproof layer 5, which are arranged with a water-permeable gap 12 therebetween. 11 has a structure in which it is communicated with the mesh member 10.

[0004]

However, in the above-mentioned drainage structure, coarse foreign matters such as leaves and stones are clogged in gaps between the exterior material layers, which not only impairs aesthetic appearance but also makes removal thereof difficult. In addition, the water passage portion is formed of a mesh member, so that fine foreign matters such as sand are likely to be clogged, and the drainage capacity decreases over a long period of use. Further, the gravel layer forming the drainage layer also has a problem that the drainage capacity decreases over a long period of use, as in the case of the stitch-like member. In particular, foreign substances clogged in the drainage layer cannot be practically removed.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and the present invention is directed to a case in which the exterior material layer is divided into gaps between the exterior material layers by a water-permeable joint, so that the portion exists in the space. The drainage layer is formed in a continuous space portion, and the water-permeable joint and the drainage layer are communicated with each other by a water-permeable member formed of a flat pipe assembly, so that the structure can be easily removed. Provided is a drainage structure that eliminates a factor of clogging of foreign matter inside and prevents a decrease in drainage capacity for a long period of time.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited to these accompanying drawings.

FIG. 1 is a perspective view (partial sectional view) showing a typical embodiment of the drainage structure of the present invention. The drainage structure of the present invention comprises an exterior material layer 2, a concrete layer 3, and a space continuous in a surface direction partitioned by a water-permeable joint 1, a drainage layer 4 communicating with a drainage mechanism in at least one place, and a waterproof layer. Layer 5 is formed in order, and the permeable joint 1 and the drainage layer 4 are formed by a flat pipe assembly penetrating the concrete layer 3 and having an open end provided in parallel with the permeable joint 1. The drainage structure is characterized by being communicated by a water passing member 6.

In the present invention, the exterior material layer 2 is made of a known exterior material used as an exterior material such as a sidewalk without any particular limitation. For example, a non-permeable member such as concrete, natural stone, a resin molded product, or a metal, or a porous member such as porous concrete having continuous voids is appropriately used.

The exterior material layer 2 is defined by a water-permeable joint 1. For such a water-permeable joint, a joint material having water permeability and a certain degree of hardness is used. For example, a water-permeable member such as a water-permeable concrete for joints such as the above-mentioned porous concrete and a porous sintered body made of metal are preferable. In particular, those having a water permeability of 0.1 to 2 cm / sec are preferably used. Further, the pattern of the water-permeable joint is not particularly limited, but is generally a square as shown in FIG.

The exterior material layer 2 is generally fixed to the concrete layer 3 by an adhesive layer 16 such as mortar.

In the present invention, a communicating part for guiding water entering from the water permeable joint 1 to the drainage layer 4 is constituted by the water passing member 6. Such a water passage member is composed of a flat pipe assembly. With such a structure, it is easy to secure a water-permeable portion between the concrete layers, and furthermore, the water-permeable joint can be arranged under the water-permeable joint, so that water entering from the water-permeable joint can be efficiently guided to the drainage layer. It becomes possible. In addition, the water-permeable member exhibits stable performance without fear of clogging due to fine foreign matter that has passed through the water-permeable joint due to such a structure. The water-permeable member is not particularly limited as long as it is formed of a flat pipe assembly, and the opening area of each pipe has a size capable of processing the amount of water entering from a water-permeable joint. Generally, a tube in which pipes having an opening area of 1 to 1000 mm ² are assembled in parallel is used. The shape of the tube is not particularly limited, but is generally rectangular, circular, or the like. Further, the material of the tube assembly may be any material having water resistance, and plastics such as polypropylene, polyethylene, and polyvinyl chloride, and metals such as iron, stainless steel, copper, and titanium are generally used. Among them, plastic is preferred.

The water-passing member 6 is connected to the drainage layer so as to reliably discharge water from the lower end thereof to the drainage layer 4. Such a structure is not particularly limited, but if a typical structure is exemplified, a mode in which a leg is provided at the lower end of the water flow member so as not to crush its opening, a mode in which a hole is formed in a lower side surface of the water flow member, A mode in which the lower end of the water-passing member is supported by a stopper having a U-shaped cross section, which is locked on the upper surface of the drainage layer and has a drainage hole on at least a side surface. FIG. 3 shows a typical mode of supporting the water-permeable member using the above-mentioned stopper.
Shown in In FIG. 3, the stopper 9 has a flange 15 for locking to the upper surface of the drainage layer, and has a support member 17 for securing a space for outflow of water from the water passage member 6. It has a drain hole 14 at least on the side. In addition, sealing material 1
3 is provided as needed.

In the present invention, the drainage layer 4 is constituted by a space continuous in the plane direction provided between the concrete layer 3 and the waterproof layer 5. The manner of forming such a space is not particularly limited. As a most preferable embodiment, as shown in FIG. 1, a frame 8 having a plurality of independent concave portions A is provided on a flat waterproof layer 5, and a concrete layer 3 is formed thereon. According to this aspect, the strength of the drainage layer 4 can be sufficiently maintained by the concrete layer 3. The material of the frame is not particularly limited, but generally the plastic is preferably used.

It is preferable that the bottom surface of the drainage layer 4 is formed such that the surface of the waterproof layer is inclined or stepped so that water flows into drainage mechanisms such as drainage grooves and drainage tanks.

In the present invention, the waterproof layer 5 can generally use the upper surface of the building as it is, but may be formed of a non-permeable member separately. It is also a preferable embodiment to provide a waterproof reinforcing member 7 made of a material such as rubber or plastic in order to further improve waterproofness.

The drainage structure of the present invention can be appropriately modified as long as it satisfies the above-mentioned essential components.

A typical construction method of the drainage structure of the present invention will be described below.

If necessary, a waterproof reinforcing layer 7 is provided on the waterproof layer 5.
Is provided, and a frame 8 having a plurality of independent concave portions A is fixed on the surface thereof. Attach the stopper 9 to the frame,
After the concrete layer 3 is formed, the concrete layer 3 is formed. After the concrete layer 3 is hardened, a gap is opened and fixed by the adhesive layer 16 so as to avoid the opening of the water-permeable member 6 by the adhesive layer 16. 1 is provided.

[0019]

In the drainage structure of the present invention, water such as rain that has fallen on the exterior material layer 2 flows to the drainage layer 4 through the water pipe 6 after most of the foreign matter is filtered at the water-permeable joint 1. Then, it flows into a drainage mechanism communicating with the drainage layer 4 and is treated.

In addition, foreign matter clogged in the permeable joint can be easily removed with a brush or the like, and in some cases, the initial drainage performance can be easily recovered only by replacing the permeable joint. Can be.

[0021]

According to the drainage structure of the present invention, by providing a water-permeable joint in the gap between the exterior material layers, it is easy to remove foreign substances clogged in the gap, and the drainage layer is formed in a continuous space. By forming and connecting the water-permeable joint and the drainage layer with a water-permeable member formed of a flat pipe aggregate, a factor of clogging of foreign matter inside the structure is eliminated, and a decrease in drainage capacity is maintained for a long time. Over a period of time.

[Brief description of the drawings]

FIG. 1 is a perspective view (partial sectional view) showing a typical embodiment of a drainage structure of the present invention.

FIG. 2 is a cross-sectional view showing a conventional drainage structure.

FIG. 3 is a perspective view showing a typical mode of a stopper.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Permeable joint 2 Exterior material layer 3 Concrete layer 4 Drainage layer 5 Waterproof layer 6 Water-permeable member 7 Waterproof reinforcement layer 8 Frame 9 Stopper 10 Net-like member 11 Drainage layer 12 Water-permeable gap 13 Sealing material 14 Drainage hole 15 Flange 16 adhesive layer 17 support member

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁶ , DB name) E02D 29/00 E02D 31/02 E01C 11/00-11/26

Claims (2)

(57) [Claims] An exterior material layer defined by a water-permeable joint,
A drainage layer and a waterproof layer are sequentially formed in at least one place comprising a concrete layer, a space portion continuous in a plane direction, and a drainage layer communicating with a drainage mechanism. The water-permeable joint and the drainage layer penetrate the concrete layer and have an opening. A drainage structure characterized in that ends are communicated by a water-permeable member formed of a flat pipe assembly provided in parallel with a water-permeable joint. 2. The drainage structure according to claim 1, wherein a lower end of the water passage member is locked to an upper surface of the drainage layer and has a drainage hole on at least a side surface thereof and is supported by a U-shaped stopper. body.