JPH06108487A - Drain structure - Google Patents

Abstract

PURPOSE:To construct a drain structure on an underground construction like an underground chamber or an underground parking garage and permeate rain water or other falling on the underground consruction through joints and stably drain the permeated water for a long term and further, easily carry out the meintenance work. CONSTITUTION:A drain structure is composed of an external member layer 2 partitioned by water-permeable joints 1, a concrete layer 3, a sequential space in the plane direction. And drain layers 4 connected to a draining device at least at one position and water-proof layers 5 are formed in turn. The water- permeable joints 1 are connected to the drain layer by water conducting members 6 composed of a flat pipe assembly which pierces through the concrete layer 3 and of which opened end is installed parallelly to the water-permeable joints 1.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a novel drainage structure. Specifically, for example, it is formed on a structure such as an artificial ground, a basement, an underground parking lot, and rainwater and the like that fall onto the structure can penetrate from joints, and the drained rainwater and the like can be stably discharged for 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 accumulated on a structure such as an artificial ground, a basement, an underground parking lot not only deteriorates the durability of the structure, but also causes a situation that rainwater enters the structure. Therefore, it is desired to drain this efficiently.
On the other hand, when an exterior part such as a sidewalk is formed on the structure, it is functionally desired that the rainwater that has fallen into the exterior part quickly permeates and drains without flowing over the surface.

In response to such a demand, a drainage structure having a sectional view shown in FIG. 2 has been conventionally proposed. The drainage structure is composed of 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, and the water-permeable gap 12 and the drainage layer. 11 has a structure in which the mesh member 10 communicates with the mesh member 10.

[0004]

However, in the above drainage structure, coarse particles of foreign matter such as leaves and stones are clogged in the gaps of the exterior material layer, which not only spoils the appearance but also is not easy to remove. Further, since the water passage portion is composed of a net-like member, fine particles of foreign matter such as sand are easily clogged, and the drainage capacity deteriorates in long-term use. Further, the gravel layer forming the drainage layer also has a problem that the drainage capacity is deteriorated during long-term use, like the knitted member. In particular, foreign substances clogged in the drainage layer cannot be practically removed.

[0005]

DISCLOSURE OF THE INVENTION The present invention is intended to solve the above problems, and exists in a portion of an exterior material layer by partitioning the exterior material layer with a water-permeable joint in a gap between the exterior material layers. To facilitate the removal of foreign matter, and to form a drainage layer in a continuous space, and to connect the water-permeable joint and the drainage layer with a water-passing member formed of a flat tube assembly, thereby forming a structure. (EN) Provided is a drainage structure which eliminates the cause of clogging of foreign matter inside and prevents deterioration of drainage capacity over 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 structure for drainage of the present invention comprises an exterior material layer 2 divided by a water-permeable joint 1, a concrete layer 3, and a space portion continuous in the plane direction, and a drainage layer 4 and a waterproof layer which communicate with a drainage mechanism at at least one place. A flat tube assembly in which layers 5 are sequentially formed, and the water-permeable joint 1 and the drainage layer 4 penetrate the concrete layer 3 and the open ends are provided in parallel to the water-permeable joint 1. It is a drainage structure characterized in that it is communicated with another 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 for sidewalks or the like without particular limitation. For example, a water-impermeable member such as concrete, natural stone, a resin molding, a metal, or a porous member such as porous concrete having continuous voids is appropriately used.

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

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

The water-passing member 6 is communicated with the drainage layer 4 from its lower end so as to reliably discharge the water to the drainage layer 4. Such a structure is not particularly limited, but if a typical structure is shown as an example, a mode in which a leg is provided at the lower end of the water-passing member so as not to collapse the opening, a mode in which a hole is formed in the side surface of the lower part of the water-passing member, There is a mode in which the lower end of the water-permeable member is locked to the upper surface of the drainage layer and is supported by a stopper having a U-shaped cross section, which has a drainage hole on at least a side surface. FIG. 3 shows a typical embodiment in which the water passage member is supported using the above stopper.
Shown in. In FIG. 3, the stopper 9 has a collar portion 15 for engaging with the upper surface of the drainage layer, and a support member 17 for securing an outflow space of water from the water passage member 6, and further, The drain hole 14 is provided at least on the side surface. Also, the sealing material 1
3 is provided if necessary.

In the present invention, the drainage layer 4 is formed by a space provided between the concrete layer 3 and the waterproof layer 5 and continuous in the plane direction. The mode of forming such a space is not particularly limited. As the most preferable mode, 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 on the frame 8. 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 the plastic is generally preferably used.

It is preferable that the bottom surface of the drainage layer 4 is formed by providing a slope or a step on the surface of the waterproof layer so that water can flow to the drainage mechanism such as a drainage groove and a drainage tank.

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

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

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

A waterproof reinforcing layer 7 is provided on the waterproof layer 5 if necessary.
And a frame 8 having a plurality of independent concave portions A is fixed to the surface thereof. The stopper 9 is attached to the frame, and the water-passing member 6 is attached.
After arranging, the concrete layer 3 is formed, and after the hardening, the adhesive layer 16 fixes the exterior material layer 2 by making a gap so as to avoid the opening of the water-permeable member 6, and the water-permeable joint in the gap. 1 is set.

[0019]

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

In addition, foreign matters that have clogged the water-permeable joints can be easily removed with a brush or the like, and in some cases, the initial drainage performance can be easily restored only by replacing the water-permeable joints. You can

[0021]

[Effects] According to the drainage structure of the present invention, by providing water-permeable joints in the gaps of the exterior material layer, it is easy to remove foreign substances clogged in the gaps, and the drainage layer is formed in a continuous space portion. By forming and connecting the water-permeable joint and the drainage layer with a water-permeable member consisting of a flat tube assembly, the cause of clogging of foreign matter inside the structure is eliminated, and the drainage capacity is reduced for a long time. It is possible to prevent over.

[Brief description of drawings]

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

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

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

[Explanation of symbols]

 1 Water-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 Mesh member 11 Drain layer 12 Water-permeable gap 13 Seal material 14 Drain hole 15 Collar part 16 Adhesive layer 17 Support member

Claims (2)

[Claims] 1. An exterior material layer partitioned by water-permeable joints,
A concrete layer, a drain layer and a waterproof layer, which are composed of a space portion continuous in the plane direction and communicate with the drain mechanism at least at one place, are sequentially formed, and the water-permeable joint and drain layer penetrate through the concrete layer and form an opening. A drainage structure characterized in that the ends are communicated with each other by a water-permeable member formed of a flat tube assembly provided in parallel with a water-permeable joint. 2. The drainage structure according to claim 1, wherein the lower end of the water passage member is locked to the upper surface of the drainage layer, and is supported by a stopper having a U-shaped cross section and having a drainage hole on at least a side surface. body.