JP4986106B2

JP4986106B2 - Artificial soil using old tatami mats

Info

Publication number: JP4986106B2
Application number: JP2005325318A
Authority: JP
Inventors: 龍二石川
Original assignee: 株式会社植藤
Priority date: 2005-10-13
Filing date: 2005-10-13
Publication date: 2012-07-25
Anticipated expiration: 2025-10-13
Also published as: JP2007105023A

Description

本発明は古畳を利用した人工土壌に関するものである。The present invention relates to artificial soil using old tatami mats.

特開平１１−２２８２６８号公報JP-A-11-228268 特開２００３−０６１４５７号公報JP 2003-061457 A

家屋の取り壊しなどで必ず発生する古畳は嵩張る上に燃え難く、廃材としての処分が困難であり、現状では廃棄処分の費用を払って専門の廃材処理業者に委託せざるを得ず、其の委託費用は畳一枚当たり約２０００円と言われている。廃材として処理する場合の方法の多くは焼却処分であるが、焼却による煙害・温暖化公害などの問題があり。有効利用の方法として、特許文献１のごとく破砕した上に発酵熟成させて肥料とする提案も成されているが、特殊な工程が必要とされることから費用対効果の点で問題がある。
一方、都市部における大気汚染やヒートアイランド現象などの環境問題を解決する手段として屋上緑化が行われるようになり、様々な提案が成されており、例えば特許文献２のごとく人工土壌の提案が数多く見られるが、構造的に複雑なものが多くこれらも費用対効果の点では問題がある。The old tatami mats that are always generated when demolishing houses are bulky and difficult to burn, and are difficult to dispose of as waste. The consignment fee is said to be about 2000 yen per tatami mat. Many of the methods for disposal as waste materials are incineration, but there are problems such as smoke damage and global warming pollution caused by incineration. As an effective utilization method, a proposal has been made to fertilize by fermenting and ripening as in Patent Document 1, but there is a problem in terms of cost effectiveness because a special process is required.
On the other hand, rooftop greening has been performed as a means to solve environmental problems such as air pollution and heat island phenomenon in urban areas, and various proposals have been made. For example, as shown in Patent Document 2, many proposals for artificial soil are seen. However, many of them are structurally complex, and these are also problematic in terms of cost effectiveness.

上記課題を解決するために、本発明の提案は建築廃材として廃棄される古畳を人工土壌の素材として活用するものである。In order to solve the above-described problems, the proposal of the present invention utilizes old tatami mats discarded as building waste as a material for artificial soil .

本来は廃材として廃棄される古畳を人工土壌の素材として活用するので、材料費は殆ど発生しない上にきわめて簡便に植栽用の人工土壌を作ることができ、コストや施工の手間の面で、屋上緑化だけでなく荒地の表面を緑化する場合にもきわめて有効であり、さらに表土が流失しやすい斜面に草花を植えつける場合には、表土の流失を防ぐ効果がある。Since old tatami mats, which are originally discarded as waste materials, are used as materials for artificial soil , there is almost no material cost, and artificial soil for planting can be made very easily. It is extremely effective not only for rooftop greening but also for greening the surface of wasteland. Furthermore, when planting flowers on slopes where topsoil tends to be washed away, it has the effect of preventing topsoil from being washed away.

以下、図面によりこの発明の実施例を説明する。
図１は本発明の実施例１による古畳を利用した人工土壌の構造説明の斜視図である。
すなわち、畳表と布縁を取り除いた畳床１の表面に図２のごとく市松状に配列した直径約１０センチメートルの穴２を厚さ方向に穿ける、穴の配列を畳目に直角な格子状にすると畳床の藁や綴じ糸を分断してしまい畳床が分解してしまうので、市松状配列のような畳床が分解しない配列は本発明の要件の一つである。穴を穿けた状態の畳床を下地３の上に、必要な面積に敷き詰める。下地は屋上緑化の場合は水周りの養生を施した屋上の表面であり、荒地緑化の場合は適宜平坦化した表土であり、用途に応じて任意である。穴の形状は円形に限らず四角でも良く、また市松状配列の間隔は植栽の種類のより適宜に定められる。市松状に配設された穴に培養土などの土４を充填し畳全体を人工土壌６とする。このように構成された人工土壌は、畳床の保水性により穴に充填された土の水分蒸散を防ぎ、更に植栽の生育に伴い伸張する根を受け入れ、穴に充填された土と一体化して土壌を構成する。Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view for explaining the structure of artificial soil using an old tatami according to Example 1 of the present invention.
That is, holes 2 having a diameter of about 10 centimeters arranged in a checkered pattern as shown in FIG. 2 are drilled in the thickness direction on the surface of the tatami floor 1 from which the tatami surface and the cloth edge are removed. Since the tatami floor is broken and the tatami floor is disassembled, the arrangement in which the tatami floor is not disassembled, such as a checkered arrangement, is one of the requirements of the present invention. A tatami floor with holes is laid on the base 3 in a required area. In the case of rooftop greening, the ground is the surface of the rooftop that has been cured around the water, and in the case of wasteland greening, it is an appropriately flattened topsoil and is optional depending on the application. The shape of the holes is not limited to a circle, but may be a square, and the interval between checkered arrays is appropriately determined according to the type of planting. The holes arranged in a checkered pattern are filled with soil 4 such as culture soil, and the entire tatami is used as artificial soil 6. The artificial soil constructed in this way prevents the water from transpiration of the soil filled in the hole due to the water retention of the tatami floor, accepts the roots that grow as the plant grows, and integrates with the soil filled in the hole. Make up the soil.

穴に充填された培養土などの土の流出を防ぐために、図３のごとく必要に応じて穴の底部にネット状の流出防止手段を附設することも有効である、土流出防止手段としては穴の底部に砕石を敷いたり、畳の穴を底部まで貫通させずに若干の厚さ分だけ底部を残した穴を穿ける方法も可能である。
このように本発明によれば極めて簡便な加工と現場施工により人工土壌が実現される。In order to prevent the outflow of soil such as culture soil filled in the hole, it is also effective to attach a net-like outflow prevention means to the bottom of the hole as necessary as shown in FIG. It is also possible to lay crushed stones at the bottom of the wall, or to make a hole that leaves the bottom by a certain thickness without penetrating the tatami hole to the bottom.
Thus, according to the present invention, artificial soil is realized by extremely simple processing and on-site construction.

本発明の実施例１による人工土壌の斜視図The perspective view of the artificial soil by Example 1 of this invention 本発明の実施例１による人工土壌の平面図Plan view of artificial soil according to Example 1 of the present invention 本発明の実施例２による人工土壌の断面図Sectional view of artificial soil according to Example 2 of the present invention

Explanation of symbols

１畳床
２穴
３下地
４土
５流失防止手段1 Tatami floor 2 Hole 3 Ground 4 Soil 5

Claims

An artificial soil characterized in that holes on the surface of the tatami floor are drilled in the direction of the thickness of the tatami floor, spread on a ground such as rooftop greening, and the holes are filled with soil such as culture soil .

The artificial soil according to claim 1, wherein the holes drilled in the surface are arranged in a checkered pattern.

2. The artificial soil according to claim 1, further comprising soil outflow prevention means at the bottom of the hole filled with the culture soil .