JPH09302667A - Slope face construction method and slope face structure of natural ecology self-restoration type - Google Patents

Slope face construction method and slope face structure of natural ecology self-restoration type

Info

Publication number
JPH09302667A
JPH09302667A JP14490296A JP14490296A JPH09302667A JP H09302667 A JPH09302667 A JP H09302667A JP 14490296 A JP14490296 A JP 14490296A JP 14490296 A JP14490296 A JP 14490296A JP H09302667 A JPH09302667 A JP H09302667A
Authority
JP
Japan
Prior art keywords
soil
plant
retaining wall
net
seeds
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP14490296A
Other languages
Japanese (ja)
Other versions
JP3053071B2 (en
Inventor
Masao Otake
将夫 大竹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Soil and Rock Engineering Co Ltd
Original Assignee
Soil and Rock Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Soil and Rock Engineering Co Ltd filed Critical Soil and Rock Engineering Co Ltd
Priority to JP8144902A priority Critical patent/JP3053071B2/en
Publication of JPH09302667A publication Critical patent/JPH09302667A/en
Application granted granted Critical
Publication of JP3053071B2 publication Critical patent/JP3053071B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide tree planting similar to that in a neighboring natural forest while maitaining strength of a slope face. SOLUTION: Unnecessary matter such as stone and gravel, roots, etc., are eliminated from dug soil at site, and fertilizer is mixed if necessary, so plant vegetation soil is prepared. Root insertion holes 18 in which roots of plants can be inserted are bored in a back surface base 13 to penetrate a masonry retaining wall 10, and part of the vegetation soil is filled in the root insertion holes 18. A sheet 24 on which seeds of tree plants and grass plants are attached, and which can be naturally decomposed in soil is provided to be apart from a front surface of a masonry retaining wall 10, the sheet 24 is covered with a net 26 through which trunks of plants can pass, and the net 26 is fixed to the masonry retaining wall 10 by anchor bolts 22. The vegetation soil is filled in gaps in the front surface of the retaining wall 10 to form a tree planting base 11.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】この発明は、地盤の掘削等に
より形成された傾斜面(法面)の保護、補強を行う法面
工法および法面構造、特に、植物の生育可能な緑化基盤
を法面に造成して、掘削等により失われた自然生態を復
元させる自然生態自己復元式法面工法および法面構造に
関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slope construction method and slope structure for protecting and reinforcing an inclined surface (slope) formed by excavation of the ground or the like, and more particularly to a greening base on which plants can grow. The present invention relates to a natural ecology self-restoration slope construction method and slope structure that is constructed on a surface to restore the natural ecology lost by excavation and the like.

【0002】[0002]

【従来の技術】たとえば、地盤の掘削や盛り土等により
生じた地盤の傾斜面(法面)は、種々の法面工法によっ
て保護、補強されている。このような法面工法として、
たとえば、法面の形状に沿って間知石などの石材やコン
クリ−トブロック(ブロック)を積んだり、法面に直接
モルタルを吹き付けたり、コンクリ−トを打設して、法
面を保護、補強する工法が従来から広く採用されてい
る。また、金網型枠、鉄筋を一体化した部材を配筋、組
立てた上にモルタルを吹き付けたり、コンクリ−トを打
設する工法も知られている。
2. Description of the Related Art For example, an inclined surface (slope) of the ground caused by excavation of the ground, embankment or the like is protected and reinforced by various slope construction methods. As such a slope construction method,
For example, stone materials such as sillicerite or concrete blocks (blocks) are piled up along the shape of the slope, mortar is sprayed directly on the slope, or concrete is cast to protect and reinforce the slope. The construction method has been widely adopted. Further, there is also known a method in which a member in which a wire mesh form and a reinforcing bar are integrated is arranged and assembled, and then mortar is sprayed or a concrete is placed.

【0003】さらに、砂質土に連続長繊維を三次元的に
からませて法面に敷設し、砂質土に疑似粘着力と変形抵
抗性とを持たせることで法面を保護、補強する工法がテ
クソル工法(ジオファイバ−工法)として知られてい
る。
Further, continuous long fibers are three-dimensionally entangled in sandy soil and laid on the slope to protect and reinforce the sandy soil by providing pseudo-adhesive force and deformation resistance. The construction method is known as the Texol construction method (geofiber-construction method).

【0004】石材やコンクリ−トブロックを積んだり、
モルタルを吹き付けたり、コンクリ−トを打設する前者
の工法によれば、法面と石材、コンクリ−トブロック、
モルタル、コンクリ−トとが一体となり、法面に十分な
強度が確保できる。また、法面が地盤に対する擁壁とし
て機能し、地盤が安定する。
Stacking stones and concrete blocks,
According to the former method of spraying mortar or placing concrete, the slope and the stone, concrete block,
The mortar and concrete are integrated to ensure sufficient strength on the slope. In addition, the slope functions as a retaining wall for the ground, stabilizing the ground.

【0005】しかし、この工法では、石材、コンクリ−
トブロックの設置等に熟練工による特殊技能が要求され
る。これに対し、後者の工法(テクソル工法)において
は、砂質土に連続長繊維を三次元的にからませれば足り
るため、施工の機械化が可能となり、さほど熟練を必要
としないで施工できる。
However, in this method, stone materials and concrete are used.
Special skills by skilled workers are required to install the toe block. On the other hand, in the latter construction method (Texol construction method), since it is sufficient if the continuous long fibers are three-dimensionally entangled in the sandy soil, the construction can be mechanized and the construction can be performed without requiring much skill.

【0006】ところで、近年の土木事業においては、自
然破壊が大きな問題となっており、緑化による景観の向
上や環境の保全および自然保護が、地盤の掘削、盛り土
等によって生じた法面に要求されている。つまり、法面
に木本植物、草木植物の種子をまいたり、苗等を植えて
法面を緑化し、以前の自然生態を復元することが強く望
まれている。
In recent years, in the civil engineering business, the destruction of nature has become a big problem, and the improvement of the landscape by the greening and the preservation of the environment and the conservation of nature are required on the slopes caused by the excavation of the ground, the embankment, etc. ing. In other words, it is strongly desired to restore the former natural ecology by planting seeds of woody plants and plants on the slopes or planting seedlings to green the slopes.

【0007】しかしながら、前者の工法においては、モ
ルタルを吹き付けてモルタルで法面を覆ったり、石材、
コンクリ−トブロック、コンクリ−トで法面の前面を覆
うため、法面に緑化基盤(生育基盤)を造成することが
難しい。また、後者の工法においては、植物の生育し難
い砂質土を法面に敷設しているため、緑化基盤のための
生育土壌そのものが確保できない。このように、従来の
法面工法においては、緑化基盤が得られず、自然生態の
自己復元が難しい。
However, in the former method, mortar is sprayed to cover the slope with mortar, stones,
Since the front of the slope is covered with concrete blocks and concrete, it is difficult to create a greening base (growth base) on the slope. Further, in the latter construction method, since sandy soil in which plants are hard to grow is laid on the slope, it is not possible to secure the growing soil itself for the greening foundation. Thus, in the conventional slope construction method, a greening foundation cannot be obtained, and it is difficult to restore the natural ecology.

【0008】そこで、たとえば、後者の工法(テクソル
工法)における砂質土に代えて、肥料材の混合された粘
性の高い埴壤土を土壌とし、この埴壤土に適当な植物の
種子を混合して連続長繊維とからませて生育土壌を作
り、この生育土壌を法面に敷設するテクソルグリ−ン工
法が提案されており、この法面工法によれば、自然生態
が短期間で復元できる。
Therefore, for example, in place of the sandy soil in the latter method (Texol method), a clayey clay having a high viscosity mixed with a fertilizer is used as a soil, and seeds of a suitable plant are mixed in the clay soil. A texol green construction method has been proposed in which continuous soil fibers are entangled to form a growing soil, and this growing soil is laid on a slope. According to this slope construction method, natural ecology can be restored in a short period of time.

【0009】[0009]

【発明が解決しようとする課題】しかしながら、テクソ
ルグリ−ン工法においては、埴壤土と連続長繊維とを三
次元的にからませて法面に敷設しているにすぎないた
め、表面的な強度しか得られない。つまり、自然生態の
自己復元においては優れているが、強度が不足して擁壁
としての機能が法面に期待できない。
However, in the texol green method, since the clay and the continuous filaments are three-dimensionally entangled and laid on the slope, only the surface strength is obtained. I can't get it. In other words, although it is excellent in self-restoration of natural ecology, it cannot be expected to function as a retaining wall due to lack of strength.

【0010】また、テクソルグリ−ン工法においては、
埴壤土と連続長繊維とを三次元的にからませるとはい
え、法面への吹き付けによって、緑化基盤を法面に沿っ
て造成しているにすぎない。そのため、急勾配の法面に
おいては、緑化基盤の層がさほど厚くできず、緑化に適
した厚さの基盤が確保し難い。
Further, in the texol green method,
Although burial soil and continuous filaments are three-dimensionally entangled, the greening base is merely created along the slope by spraying on the slope. Therefore, on a steep slope, the greening base layer cannot be made so thick, and it is difficult to secure a base with a thickness suitable for greening.

【0011】さらに、テクソルグリ−ン工法では、その
施工の際に、所定の土に肥料材、種子等を混合し団粒化
させる混合・攪拌のための装置、埴壤土を吹き付けるた
めの装置、連続長繊維を吹き付けるための装置等の種々
の専用装置が必要となる。そのため、施工が煩雑化しや
すく、かつ、その施工にかなりの設備投資が要求され、
コスト高にならざるを得ない。
Further, in the Texol green method, a device for mixing and stirring for mixing fertilizer materials, seeds and the like into a predetermined soil and agglomerating the same, a device for spraying clay and a continuous soil during the construction. Various dedicated devices such as a device for spraying long fibers are required. Therefore, the construction is likely to be complicated, and considerable capital investment is required for the construction.
There is no choice but to increase the cost.

【0012】また、現地表土と無関係な埴壤土を生育土
壌としているため、近隣の本来の自然林に近い緑化が難
しく、違和感のある植生態が生じやすい。
Further, since the burial soil, which is unrelated to the local topsoil, is used as the growing soil, it is difficult to plant greenery close to the original natural forest in the vicinity, and planting ecology with discomfort tends to occur.

【0013】この発明は、法面の強度を保ちながら、近
隣の本来の自然林に近い緑化を可能とする自然生態自己
復元式法面工法およびその法面構造の提供を目的として
いる。
It is an object of the present invention to provide a natural ecology self-restoration slope construction method and its slope structure that enable greening close to a natural forest nearby while maintaining the slope strength.

【0014】[0014]

【課題を解決するための手段】この目的を達成するため
に、この発明の自然生態自己復元式法面工法によれば現
地の掘削土から石礫、根系等の不要物を除去し、肥料を
混合して植物の生育土壌を作り、この生育土壌を既存の
擁壁前面に敷設して緑化基盤を造成している。土壌中で
自然分解可能なシ−トが緑化基盤の表面に被せられ、木
本植物、草本植物の種子のうち、少なくとも木本植物の
種子がこのシ−トに付着されている。さらに、植物の幹
の通過可能なネットでシ−トを覆い、シ−トとともにネ
ットは固定されている。
[Means for Solving the Problems] In order to achieve this object, according to the natural ecology self-restoration slope method of the present invention, unnecessary materials such as gravel and root systems are removed from the excavated soil at the site, and fertilizer is applied. A soil for growing plants is mixed to make a soil for vegetation, and this soil for soil is laid in front of the existing retaining wall to form a greening base. A sheet that is naturally degradable in soil is covered on the surface of the greening base, and at least seeds of woody plants among the seeds of woody plants and herbaceous plants are attached to this sheet. Furthermore, the sheet is covered with a net through which the trunk of the plant can pass, and the net is fixed together with the sheet.

【0015】植物の根の挿通可能な根入り孔が擁壁に貫
通して背面基盤に設けられ、生育土壌の一部が根入り孔
に詰められる。根入り孔にパイプを挿入し、生育土壌を
パイプに詰めてもよい。パイプ外面にモルタルを流せ
ば、パイプを固定できる。
A rooting hole through which a root of a plant can be inserted is provided on the back base so as to penetrate the retaining wall, and part of the growing soil is packed in the rooting hole. A pipe may be inserted into the root-entry hole to fill the pipe with growing soil. The pipe can be fixed by pouring mortar on the outer surface of the pipe.

【0016】アタッチメントとして、植生棚を後付けし
てもよい。たとえば、植生棚は断面略L字形とされ、ネ
ットに取付金具で連結し、生育土壌を植生棚に詰めて水
平な植生面が確保される。
As an attachment, a vegetation shelf may be attached later. For example, the vegetation shelf has a substantially L-shaped cross section, is connected to a net with a mounting metal fitting, and the growing soil is packed in the vegetation shelf to ensure a horizontal vegetation surface.

【0017】[0017]

【発明の実施の形態】以下、図面を参照しながらこの発
明の実施の形態について詳細に説明する。
Embodiments of the present invention will be described below in detail with reference to the drawings.

【0018】この発明に係る自然生態自己復元式法面工
法の実施の一形態として、間知石のような石材やコンク
リ−トブロックを積んでなる既存の石積擁壁の前面に緑
化基盤を造成する場合について述べると、まず、擁壁付
近の表土(現地表土)を掘削して生育土壌を採取する。
現地近隣の表土の厚さ、含水率、団粒率、表面硬度、埋
土種子、有用生物等を事前に調査して適切な表土を選
び、掘削する。たとえば、現地近隣の表土のうち、10%
程度の厚さで掘削しても短期間で復元し、影響は少な
い。
As one embodiment of the natural ecology self-restoration slope method according to the present invention, a greening base is formed on the front surface of an existing stone masonry retaining wall made of stone material such as machinite stone and concrete blocks. To describe the case, first, excavate the topsoil (local topsoil) near the retaining wall to collect growing soil.
Examine the thickness, moisture content, aggregate rate, surface hardness, buried seeds, useful organisms, etc. of the topsoil in the vicinity of the site in advance and select an appropriate topsoil for excavation. For example, 10% of the topsoil in the local area
Even if it is excavated with a certain thickness, it will be restored in a short period of time and the impact will be small.

【0019】表土の掘削、採取は、たとえば、以下のよ
うにして行われる。まず、表土の厚さの10%程度までレ
−キ状バックホ−アタッチメント等の掘削装置で掘り起
こし、強力バキュ−ムで収集し、バイブレ−タ−スクリ
−ン等の選別機械で掘削土(表土)から所定大以上の石
礫、根系を除去して、現地発生土(表土)を採取する。
たとえば、30mm x 30mm の網目を持つスクリ−ンを通過
したものが、現地発生土として採取される。無論、これ
以外の方法で表土を採取してもよい。
Excavation and sampling of the topsoil are performed as follows, for example. First, excavate up to about 10% of the thickness of the topsoil with a drilling device such as a lake backhoe attachment, collect it with a strong vacuum, and excavate it with a sorting machine such as a vibrator screen (topsoil). Remove gravel and roots of a certain size or larger from, and collect locally-generated soil (topsoil).
For example, what has passed through a screen with a mesh of 30mm x 30mm is sampled as locally generated soil. Of course, the topsoil may be collected by other methods.

【0020】従来のテクソルグリ−ン工法では、専用の
装置が使用される。これに対して、この発明における現
地発生土の採取では、従来の装置が転用でき、専用装置
を必要としない。
In the conventional texol green method, a dedicated device is used. On the other hand, in collecting the locally generated soil in the present invention, the conventional device can be diverted and a dedicated device is not required.

【0021】現地発生土としての表土は、現地の自然界
が何百年、何千年という時間をかけて生育した有用微生
物の宝庫であるとともに、埋土種子を多数含んでおり、
生育土壌として最適であることはいうまでもない。肥
料、たとえば堆肥を混入して表土の植生態をよりよいも
のするとよい。現地発生土を利用することによって、現
地における本来の自然林にできるだけ近い植生態が再現
され、近隣と違和感のない緑化が可能となる。
The topsoil as a locally-generated soil is a treasure trove of useful microorganisms grown in the local natural world over a period of hundreds or thousands of years, and also contains many buried soil seeds.
It goes without saying that it is optimal as a growing soil. It is advisable to add fertilizers such as compost to improve the topsoil planting ecology. By using the locally generated soil, it is possible to reproduce the planting ecology as close as possible to the original natural forest in the field, and it is possible to plant trees without any discomfort with the neighboring areas.

【0022】表土のpHを中性程度に維持することによっ
て、表土に含有された微生物の生育、繁殖が促進される
ことが知られており、そのための微生物混合材として、
ピ−トモス等の植物繊維系素材や、バイオカ−ボン、モ
クタン、ヤシガラ、人工陶土等の多孔質系素材を、採取
した表土に混入するとよい。
It is known that by maintaining the pH of the topsoil at a neutral level, the growth and reproduction of the microorganisms contained in the topsoil are promoted.
It is advisable to mix a plant fiber material such as peat moss or a porous material such as biocarbon, moctan, coconut husk and artificial clay into the collected topsoil.

【0023】石積擁壁を対象としたこの発明の実施の一
形態を図1〜図3に示す。ここで、図1は石積擁壁の概
略縦断面図、図2は一部破断の正面図、図3は図1のA
部の拡大図をそれぞれ示す。
One embodiment of the present invention for a masonry retaining wall is shown in FIGS. Here, FIG. 1 is a schematic vertical sectional view of the masonry retaining wall, FIG. 2 is a partially cutaway front view, and FIG. 3 is A of FIG.
The enlarged view of each part is shown.

【0024】石積擁壁10は、石材12を積み、モルタルで
石材の隙間を埋めて構築され、さらに、基部前面に基礎
コンクリ−ト14が打設され、U字形ブロックからなる排
水溝16が基礎コンクリ−トの前に埋設されている。石材
12、基礎コンクリ−ト14は連結ピン17によって連結され
ている(図3参照)。
The masonry retaining wall 10 is constructed by stacking stone materials 12 and filling the gaps between the stone materials with mortar. Further, a foundation concrete 14 is placed on the front surface of the base, and a drainage groove 16 consisting of a U-shaped block is the foundation. It is buried in front of the concrete. Stone material
12, the basic concrete 14 is connected by a connecting pin 17 (see FIG. 3).

【0025】本木植物の根の挿入可能な根入り孔18が擁
壁10を貫通して、背面地盤13に穿設されている。根入り
孔18は、たとえば、その直径を42mm程度とし、平方m 当
たり2本程度とされる。また、垂直方向で整列させず、
上下に少しずらして、たとえば、図2に示すように、互
いに半ピッチずつずらして配置するとよい。
A root-entry hole 18 into which a root of a real tree plant can be inserted passes through the retaining wall 10 and is bored in the back ground 13. The root-entry holes 18 have, for example, a diameter of about 42 mm and about two holes per square m 2. Also, do not align vertically
It is advisable to slightly shift them up and down, for example, as shown in FIG.

【0026】棚材20が石材12の前面に水平に設けられ、
高分子保水材21が棚材上にのせられている。たとえば、
棚材20は、2本の支持ピン20a の間にネット20b を架設
して形成され(図4参照)、根入り孔18と同様に、たと
えば、上下に互いに半ピッチずつずらして配置される
(図3参照)。
A shelf member 20 is horizontally provided on the front surface of the stone member 12,
A polymeric water retaining material 21 is placed on the shelf material. For example,
The shelf member 20 is formed by installing a net 20b between two support pins 20a (see FIG. 4), and is arranged, for example, vertically offset from each other by half a pitch (similar to the root hole 18). (See FIG. 3).

【0027】また、長尺のボルト(アンカ−ボルト)22
が石材12に垂直に埋設されて伸び、2つのボルト22a が
アンカ−ボルトの先端に螺着され、ボルト間の座金22b
によってシ−ト24、ネット26が挟持、固定されている。
Also, a long bolt (anchor bolt) 22
Is vertically embedded in the stone 12 and extends, and two bolts 22a are screwed to the tips of the anchor bolts, and washers 22b between the bolts are attached.
The sheet 24 and the net 26 are clamped and fixed by.

【0028】シ−ト24は土壌中で自然分解可能な不織布
からなり、たとえば、浸水性、保水性および保温性を持
つ繊維分解素材と耐腐食性の化学繊維とを適当な割合で
混合させて形成される。繊維分解素材として、たとえ
ば、天然繊維(綿、麻等)やジュ−ト繊維等が利用でき
る。そして、木本植物、草本植物の種子がシ−ト24に付
着されている。
The sheet 24 is made of a non-woven fabric which can be naturally decomposed in soil. It is formed. As the fiber decomposition material, for example, natural fibers (cotton, hemp, etc.) and jute fibers can be used. The seeds of woody plants and herbaceous plants are attached to the sheet 24.

【0029】木本植物、草本植物としては、現地の植生
態を壊さないように、現地周辺の植物調査に基づいて選
定された在来種の木本植物、草本植物が選ばれる。そし
て、木本植物、草本植物の種子を折り込みながら不織布
を織ったり、または、織られた不織布に種子を吹き付け
て、種子付のシ−ト24が得られる。
As the woody plant and herbaceous plant, a native woody plant or herbaceous plant selected based on a plant survey around the site is selected so as not to damage the local plant ecology. Then, the nonwoven fabric is woven while the seeds of woody plants and herbaceous plants are folded, or the seeds are sprayed on the woven nonwoven fabric to obtain the sheet 24 with seeds.

【0030】天然繊維等の繊維分解素材自体はさほど大
きな剛性を持たない。しかし、天然繊維等の繊維分解素
材に耐腐食性の化学繊維を混合させたシ−ト24において
は、剛性の高い強靱な化学繊維が補強材として機能し、
必要な強度が得られる。
The fiber-decomposed material such as natural fiber itself does not have great rigidity. However, in the sheet 24 in which the fiber-decomposing material such as natural fiber is mixed with the corrosion-resistant chemical fiber, the tough chemical fiber having high rigidity functions as a reinforcing material,
The required strength is obtained.

【0031】綿、麻等の天然繊維は浸水性、通気性を持
つため、種子の発芽、植物の生育等に適した水分、酸素
等が十分に供給される。従って、不織布のシ−ト24が発
芽、生育の妨げとなることもない。
Since natural fibers such as cotton and hemp have a water-immersive property and an air-permeable property, water, oxygen, etc. suitable for seed germination, plant growth and the like are sufficiently supplied. Therefore, the non-woven sheet 24 does not interfere with germination and growth.

【0032】このようなシ−ト24においては、シ−トに
付着した植物の根系の伸長する6か月程度で繊維分解素
材を土壌中に分解、消滅させることが好ましい。そし
て、不織布からなるシ−ト24によれば、繊維分解素材に
対する化学繊維の混合量の比率によって、その分解、消
滅する期間が調整できる。
In such a sheet 24, it is preferable that the fiber-decomposing material is decomposed and eliminated in the soil in about 6 months when the root system of the plant attached to the sheet elongates. Further, according to the sheet 24 made of the non-woven fabric, the period of decomposition and disappearance can be adjusted by the ratio of the mixing amount of the chemical fiber to the fiber decomposition material.

【0033】繊維分解素材の自然分解、消滅するまでの
期間においては、通常、シ−ト24に付着した種子の植物
の根系が伸長し、残された化学繊維や表土にからみ、植
物の根系が表土の補強材として機能する。そして、繊維
分解素材の分解、消滅後においても、表土の強度が維持
され、表土の侵食や滑落が防止される。
During the period until the fiber-decomposing material is naturally decomposed and disappears, the root system of the seed plant attached to the sheet 24 is usually elongated, and the root system of the plant is entangled with the remaining chemical fibers and topsoil. Functions as a reinforcement for topsoil. The strength of the topsoil is maintained even after the fiber-decomposing material is decomposed and disappeared, and the topsoil is prevented from eroding and slipping off.

【0034】植物の幹の通過可能なネット26で種子付シ
−ト24は覆われている。ネット26として、ジオグリッド
のような硬質樹脂ネットが使用される。たとえば、網目
が50mm x 50mm のジオグリッドがネット26として架設さ
れる。ネット26、種子付シ−ト24は、上記のように、座
金22b、ボルト22a によってアンカ−ボルト22に固定され
ている。また、棚板20の支持ピン20a の先端はフック端
とされ、このフック端がネット26、種子付シ−ト22に係
止されて、ネット、種子付シ−トの膨らみを防止してい
る。
The seeded sheet 24 is covered with a net 26 through which the trunk of the plant can pass. As the net 26, a hard resin net such as Geogrid is used. For example, a geogrid with a mesh of 50 mm x 50 mm will be installed as the net 26. The net 26 and the seeded sheet 24 are fixed to the anchor bolt 22 by the washer 22b and the bolt 22a, as described above. Further, the tip of the support pin 20a of the shelf board 20 is a hook end, and this hook end is locked to the net 26 and the seed-attached sheet 22 to prevent the net and the seed-attached sheet from bulging. .

【0035】そして、シ−ト24、ネット26で覆った擁壁
前面の空間(隙間)に、上記のようにして現地で採取さ
れた表土が生育土壌として敷設されて緑化基盤11が造成
されている。
Then, in the space (gap) in front of the retaining wall covered with the sheet 24 and the net 26, the topsoil sampled locally as described above is laid as growth soil to form the greening base 11. There is.

【0036】シ−ト24、ネット26の上または下に架設し
た枠体に、シ−ト24、ネット26を固定してもよい。ここ
で、枠体は石材12にアンカ−ボルトによって固定され
る。
The sheet 24 and the net 26 may be fixed to a frame body provided above or below the sheet 24 and the net 26. Here, the frame body is fixed to the stone material 12 by anchor bolts.

【0037】たとえば、表土(生育土壌)は、擁壁前面
の空間に高圧空気やコンベヤ等を利用して搬送、供給さ
れ、根入り孔18にも表土(生育土壌)が詰められる。必
要なら、シ−ト24、ネット26の配置前に、根入り孔18に
表土(生育土壌)を予め押し込んでおくとよい。
For example, the topsoil (growing soil) is conveyed and supplied to the space in front of the retaining wall by using high-pressure air or a conveyor, and the root hole 18 is also filled with the topsoil (growing soil). If necessary, before placing the sheets 24 and nets 26, it is advisable to push the topsoil (growing soil) into the root entry holes 18 in advance.

【0038】このようにこの発明では、自然界の有用微
生物の宝庫であるとともに埋土種子を多数含む現地の表
土を生育土壌として緑化基盤11を擁壁前面に造成してい
る。そのため、シ−ト24に付着した種子は生育土壌から
の滋養分を十分に吸収して活発に成長し、ネット26の網
目を越えて外に伸びることから、擁壁前面が緑で覆われ
て、自然生態が早期に復元される。図1に植物がネット
26の外に十分に繁殖して、擁壁10を緑で覆った状態を示
す。
As described above, according to the present invention, the revegetation base 11 is formed on the front surface of the retaining wall by using the local topsoil, which is a treasure trove of useful microorganisms in the natural world and which contains a large number of buried soil seeds, as the growth soil. Therefore, the seeds attached to the sheet 24 sufficiently absorb the nutrients from the growing soil and actively grow, and extend outside beyond the mesh of the net 26, so that the front surface of the retaining wall is covered with green. , The natural ecology is restored early. The plant is a net in Figure 1.
26 shows a state in which the retaining wall 10 is fully bred and covered with green.

【0039】また、現地近隣で採取した表土を生育土壌
としているため、その土壌に堆積した種子による草本植
物等の生育が期待され、近隣の本来の自然林に近い状態
で緑化される。加えて、現地周辺の植物調査に基づいて
在来種の種子がシ−ト24を介在して播種されるため、現
地の植生態と違和感のない自然生態が再現される。
Since the topsoil collected in the vicinity of the site is used as a growth soil, it is expected that seeds deposited on the soil will grow herbaceous plants and the like, and greening will be performed in a state close to the original natural forest in the vicinity. In addition, since the seeds of the native species are sown by interposing the sheet 24 based on the plant survey around the site, a natural ecology that does not feel uncomfortable with the local plant ecology can be reproduced.

【0040】なお、肥料木となる木本植物の種子とし
て、たとえば、その地域に適したマメ科の根粒植物を選
定してシ−ト24に付着すれば、マメ科植物の根系は早く
成長して倒れ難いため、引き抜き強度が大きく、緑化基
盤11の安定化に役立つ。
As seeds of a woody plant that becomes a fertilizer tree, for example, if a legume root nodule plant suitable for the region is selected and attached to the sheet 24, the root system of the legume plant grows faster. Since it is hard to fall down, it has a large pull-out strength and helps stabilize the greening base 11.

【0041】土壌中での経年変化によって土壌中で自然
分解して消滅するため、シ−ト24は種子の発芽、植物の
生育等の妨げとならず、土壌も汚染しない。また、シ−
ト24の分解、消滅によって緑化基盤の表土が露出するた
め、成長した植物の落葉、落枝が生育土壌に取り込まれ
て新たな肥料源が得られる。
Since the natural decomposition and disappearance in the soil due to the secular change in the soil, the sheet 24 does not hinder the germination of seeds, the growth of plants and the like and does not pollute the soil. In addition,
Since the topsoil of the greening base is exposed due to the decomposition and disappearance of the tomato 24, the leaves and branches of the grown plant are taken into the growing soil and a new fertilizer source is obtained.

【0042】木本植物、草本植物の根は水分を求めて間
隙(クラック)等に侵入する習性があり、この発明にお
いては、根入り孔18を通じて、植物の根は擁壁背後の地
盤(背面地盤)13にも侵入し、背面地盤に張り巡らされ
て水分を吸収するため、植物が大きく成長できる。ま
た、その根系が背面地盤13に張り巡らされることによ
り、生育土壌(緑化基盤11)が十分な強度のもとで擁壁
前面に保全される。
The roots of woody plants and herbaceous plants have a habit of invading gaps (cracks) or the like in search of water. In the present invention, the roots of the plants are rooted behind the retaining wall (rear surface) through the root-entry holes 18. It also invades the ground (13) and is stretched over the back ground to absorb water, allowing plants to grow large. Further, the root system is stretched around the back ground 13, so that the growing soil (greening base 11) is preserved in front of the retaining wall with sufficient strength.

【0043】特に、根系の絡み合いによって根入り孔18
よりも大径の塊体が背面地盤13に成形されて大きな引き
抜き抵抗が得られ、生育土壌(緑化基盤11)を擁壁前面
に強固に保持できる。さらに、根系が背面地盤13の風化
土層の間隙に侵入して、風化土層を保持、強化する機能
もある。
In particular, the root-entry holes 18 due to the entanglement of the root system.
A lump having a larger diameter than that is formed on the back ground 13 to obtain a large pull-out resistance, and the growing soil (greening base 11) can be firmly held on the front surface of the retaining wall. Further, the root system has a function of intruding into the gap of the weathered soil layer of the back ground 13 to retain and strengthen the weathered soil layer.

【0044】図示のように、根入り孔18を垂直方向で整
列させず、ずらして配置した構成では、根入り孔が植物
の根に近接して位置するため、根系が根入り孔に短期間
の内に侵入できる。
As shown in the figure, in the configuration in which the root-entry holes 18 are not vertically aligned but are staggered, the root-entry holes are located close to the roots of the plant, so that the root system is short-termed in the root-entry holes. Can break into.

【0045】無論、固定したネット26で緑化基盤11を押
さえているため、法面に必要な強度が確保されるととも
に、緑化に必要な厚さの緑化基盤が得られる。
Of course, since the fixed net 26 holds down the greening base 11, the strength required for the slope is secured and the greening base having a thickness necessary for greening is obtained.

【0046】通常、擁壁前面の緑化、自然生態の回復の
ために、木本植物、草本植物双方の種子がシ−ト24に付
着され、木本植物による緑化と草本植物による緑化とが
推進される。しかし、草本植物による場合に比較して、
木本植物による緑化は、その根系の伸長が活発で太く、
早く成長し土壌を強固に保護、維持して、生育土壌(緑
化基盤11)を擁壁10に止め、保全機能に優れる。そのた
め、木本植物の種子のみをシ−ト24に付着し、木本植物
によって緑化を進め、草本植物による緑化は表土の埋土
種子、自然伝播の種子等によるものとしてもよい。
Usually, seeds of both woody plants and herbaceous plants are attached to the sheet 24 for the purpose of greening the front of the retaining wall and restoring the natural ecology, and the greening by the woody plant and the greening by the herbaceous plant are promoted. To be done. However, compared to the case with herbaceous plants,
Tree planting by woody plants has a thick root system and is thick,
It grows fast and firmly protects and maintains the soil, stops the growing soil (greening base 11) on the retaining wall 10, and has an excellent conservation function. Therefore, only seeds of the woody plant may be attached to the sheet 24, and the greening may be promoted by the woody plant, and the greening by the herbaceous plant may be the buried soil seed of the topsoil, the naturally propagated seed, or the like.

【0047】なお、土壌硬度がある値以上になると根の
伸長が止まることから、根が根入り孔18を圧迫するほど
成長することはなく、根入り孔の存在が擁壁に悪影響を
与えることはない。
When the soil hardness exceeds a certain value, the roots stop growing, so that the roots do not grow enough to press the root holes 18, and the presence of the root holes adversely affects the retaining wall. There is no.

【0048】根入り孔18によって、擁壁前面の緑化基盤
11、背面地盤13を連通しているため、根入り孔が水抜き
孔としても機能する。
With the root-entry hole 18, the greening base on the front of the retaining wall
11. Since the back ground 13 is communicated, the root entry hole also functions as a drainage hole.

【0049】さらに、図示しないが、根入り孔18にパイ
プを入れ、パイプの外面にモルタルを流してパイプを擁
壁10、背面地盤13に固定すれば、根入り孔がアンカ−と
しても機能し、強固な法面が得られる。
Further, although not shown, if a pipe is put in the root hole 18 and mortar is poured on the outer surface of the pipe to fix the pipe to the retaining wall 10 and the back ground 13, the root hole also functions as an anchor. , A strong slope can be obtained.

【0050】従来の法面工法においては、含水率、保水
性の低下について対策が講じられていない。これに対し
て、本願発明では、高分子保水材21をのせた棚板20を擁
壁10の前面で水平に設けている。そのため、高分子保水
材21が水分を吸収、保持して、含水率、保水性の低下が
防止され、植物の成長に必要な水分が確保できる。
In the conventional slope construction method, no measures are taken to reduce the water content and water retention. On the other hand, in the present invention, the shelf board 20 on which the polymeric water retaining material 21 is placed is horizontally provided in front of the retaining wall 10. Therefore, the polymer water-retaining material 21 absorbs and retains water, and the decrease in water content and water retention is prevented, and the water required for plant growth can be secured.

【0051】1枚の長い棚板を水平に連続して設けるこ
となく、実施の形態のように、多数の短い棚板20を上下
にずらして、隙間を設けているため、水分が一ケ所に滞
留することなく、上下に満遍なく配分される。1枚の長
い棚板が水平に連続して設けられ、高分子保水材21が隙
間を残して配置された構成でも同様の効果が得られる。
また、棚板20を上下にずらしているため、棚板に邪魔さ
れずに、生育土壌(表土)が擁壁前面の隙間に詰められ
る。
As in the embodiment, a large number of short shelf plates 20 are vertically shifted to form a gap without providing one long shelf plate horizontally continuously, so that the water content is concentrated in one place. It is distributed evenly above and below without staying. The same effect can be obtained even with a configuration in which one long shelf plate is horizontally provided continuously and the polymeric water-retaining material 21 is arranged with a gap.
Further, since the shelf plate 20 is vertically shifted, the growing soil (top soil) is packed in the gap in front of the retaining wall without being disturbed by the shelf plate.

【0052】上記のように、既存の擁壁(石積擁壁)に
おいても、その前面に緑化基盤11を造成して擁壁を緑で
覆う自然生態が容易に復元できる。
As described above, even in the existing retaining wall (masonry retaining wall), the natural ecology of covering the retaining wall with green by constructing the greening base 11 on its front surface can be easily restored.

【0053】斜めの植生面より水平の植生面の方が植物
の生育に適することはいうまでもない。そのため、階段
状の植生棚をアタッチメントとしてネット26の上から設
置して、水平な植生面を確保するとよい。
It goes without saying that a horizontal vegetation surface is more suitable for plant growth than an oblique vegetation surface. Therefore, it is advisable to install a stepped vegetation shelf as an attachment from above the net 26 to secure a horizontal vegetation surface.

【0054】たとえば、図5に示すように、植生棚32が
取付金具34でネット26に連結、固定される。たとえば、
植生棚33は、L字形のネット35の折曲端を上にして垂直
に立てた断面略逆L字形とされ、その背面に土留めシ−
ト36が立て掛けられる。
For example, as shown in FIG. 5, the vegetation shelf 32 is connected and fixed to the net 26 by the mounting bracket 34. For example,
The vegetation shelf 33 has a substantially inverted L-shaped cross section in which the bent end of the L-shaped net 35 is vertically erected, and an earth retaining seam is attached to the rear surface thereof.
36 is leaned against.

【0055】図示の形態では、ネット35として50mm x 5
0mm の網目のジオグリットが使用され、ネットの垂直部
分の左右の端は内方に折曲されて閉じられる。そして、
ネット35の下端、内端は、オ−クリップのような取付金
具34でネット26に連結、固定される。図6に模式図を示
すように、連続したネット35から植生棚32を上下に連続
して構築すれば、多数の植生棚が容易に設置できる。
In the illustrated form, the net 35 is 50 mm x 5
A 0 mm mesh geogrid is used and the left and right ends of the vertical part of the net are folded inward and closed. And
The lower end and the inner end of the net 35 are connected and fixed to the net 26 by a fitting 34 such as an o-clip. As shown in the schematic view of FIG. 6, a large number of vegetation shelves can be easily installed by constructing the vegetation shelves 32 continuously from the continuous net 35 in the vertical direction.

【0056】現地で採取された表土が、必要なら肥料を
加えて、生育土壌としてこの植生棚32に詰められ、ネッ
ト26背後の緑化基盤11に加えて、植生棚32にも緑化基盤
が造成される。
The topsoil collected locally is added to the vegetation shelf 32 as growth soil by adding fertilizer if necessary, and the vegetation shelf 32 has a greening foundation in addition to the greening foundation 11 behind the net 26. It

【0057】このように、植生棚32を設けて水平な植生
面を確保すれば、植物は当初から垂直に伸びた自然な生
育状態で成長できる。
As described above, by providing the vegetation shelf 32 and ensuring a horizontal vegetation surface, the plant can grow in a natural growth state in which it extends vertically from the beginning.

【0058】また、植生棚32の略V字形の底に保水シ−
ト38が敷かれて保水ラインを確保しているため、植生棚
で生育される植物に十分な水分が供給される。なお、保
水シ−ト38は保水性のある不織布から成形され、その左
右の端は水の自由な流出を防ぐために閉じられ、その上
面は生育土壌の自由な流入による閉塞を防ぐために閉じ
られる。
A water retaining sheet is attached to the bottom of the V-shaped vegetation shelf 32.
Since the gutter 38 is laid to secure the water retention line, sufficient water is supplied to the plants grown on the vegetation shelf. The water-retaining sheet 38 is formed from a water-retaining non-woven fabric, and its left and right ends are closed to prevent free outflow of water, and its upper surface is closed to prevent blockage due to free inflow of growing soil.

【0059】勿論、図示の植生棚32の構成は一例であ
り、種子付シ−ト24を覆うネット26に後付けできる構成
であれば足り、これに限定されない。たとえば、植生棚
32の垂直面、上面を単一のネット(ジオグリット)35か
ら成形しないで、別のネットから植生棚の垂直面、上面
をそれぞれ形成してもよい。また、ネット35に代えて、
必要な強度を確保できるシ−トを用いれば、ネット背面
の土留めシ−ト36は省略できる。
Of course, the configuration of the vegetation shelf 32 shown in the figure is an example, and the configuration is not limited to this as long as it can be attached to the net 26 covering the seed-attached sheet 24 later. For example, the vegetation shelf
The vertical surface and the upper surface of 32 may not be formed from a single net (geogrit) 35, but the vertical surface and the upper surface of the vegetation shelf may be formed from different nets, respectively. Also, instead of the net 35,
If a sheet that can secure the required strength is used, the earth retaining sheet 36 on the back surface of the net can be omitted.

【0060】図示しないが、植生棚32のネット35の下に
種子付シ−ト24を配置してもよいし、シ−トを設けない
で、木本植物、草本植物の苗、種子を植生棚の緑化基盤
で直接生育させてもよい。
Although not shown, the seed-equipped sheet 24 may be arranged under the net 35 of the vegetation shelf 32, or without planting the sheet, seedlings and seeds of woody plants, herbaceous plants are planted. It may be grown directly on the greening base of the shelf.

【0061】この発明は、石材やコンクリ−トブロック
を積んだ石積擁壁以外の既存の擁壁、たとえば、既存の
モルタル吹付け擁壁にも応用できる。モルタル吹付け擁
壁の縦断面図を示す図7、A部の拡大図である図8を参
照しながら、既存のモルタル吹付け擁壁での自然生態自
己復元式法面工法を説明する。上記の形態で使用した部
材に対応する部材については、参照符号に100 を加えて
示す。
The present invention can also be applied to existing retaining walls other than stone retaining walls on which stone materials and concrete blocks are stacked, for example, existing mortar spray retaining walls. A natural ecology self-recovery slope method for an existing mortar spray retaining wall will be described with reference to FIG. 7 showing a vertical cross-sectional view of the mortar spray retaining wall and FIG. 8 which is an enlarged view of a portion A. The members corresponding to the members used in the above embodiment are indicated by adding 100 to the reference numeral.

【0062】この場合にも、擁壁110 の付近の表土から
所定大以上の石礫、根系を除去して、現地発生土(現地
表土)を採取し、必要なら肥料が混ぜられる。また、根
入り孔118 が擁壁110 を貫通して背面地盤113 に穿設さ
れる。モルタル吹付け擁壁110 においても、前記の石積
擁壁10と同様に、その直径42mm程度の根入り孔118 を平
方m当たり2本程度穿設すればよい。
Also in this case, stone gravel and a root system of a predetermined size or larger are removed from the surface soil near the retaining wall 110, the locally generated soil (local surface soil) is collected, and fertilizer is mixed if necessary. Further, a root hole 118 penetrates the retaining wall 110 and is drilled in the back ground 113. Also in the mortar spray retaining wall 110, like the masonry retaining wall 10 described above, about two root-entry holes 118 having a diameter of about 42 mm may be formed per square meter.

【0063】上記形態と同様に、アンカ−ボルト122 が
背面地盤113 に埋設され、種子付シ−ト124、ネット126
がナット、座板を利用してアンカ−ボルトの先端に固定
される。そして、シ−ト124、ネット126 とモルタル吹付
け擁壁110 との隙間に、現地発生土(現地表土)が生育
土壌として詰められ、緑化基盤111 が擁壁前面に造成さ
れる。
Similar to the above embodiment, the anchor bolt 122 is embedded in the back ground 113, the sheet with seed 124, and the net 126.
Is fixed to the tip of the anchor bolt using a nut and a seat plate. Then, in the gap between the sheet 124, the net 126 and the mortar spray retaining wall 110, locally generated soil (local top soil) is filled as a growing soil, and a greening base 111 is formed in front of the retaining wall.

【0064】なお、背面排水材42を擁壁110 の表面に敷
き、背面排水材の上に生育土壌を敷設するとよい。この
場合には、根入り孔118 に生育土壌を予め詰めてから、
背面排水材42が擁壁110 の表面に敷かれ、それから、生
育土壌がシ−ト124、擁壁110の間に詰められる。
The rear drainage material 42 may be laid on the surface of the retaining wall 110, and the growing soil may be laid on the rear drainage material. In this case, fill the root-entry holes 118 with growing soil in advance, and then
Back drainage material 42 is laid on the surface of retaining wall 110, and then growing soil is packed between sheet 124 and retaining wall 110.

【0065】この構成では、擁壁表面での流水による生
育土壌の流出が防止されるため、大量の降雨時において
も緑化基盤111 が安定して保全される。また、図示しな
いが、モルタル吹き付け擁壁110 には、多数の水抜き孔
が形成されており、背面排水材42を敷くことにより、水
抜き孔への生育土壌の流入が阻止されて水抜き孔の目詰
まりが防止できる。
With this structure, since the growth soil is prevented from flowing out due to running water on the retaining wall surface, the greening base 111 can be stably maintained even when a large amount of rainfall occurs. Although not shown, a large number of water drainage holes are formed in the mortar spray retaining wall 110. By laying the rear drainage material 42, the growth soil is prevented from flowing into the water drainage holes and the drainage holes are formed. Can be prevented from clogging.

【0066】このモルタル吹き付け擁壁110 において
も、擁壁の強度を維持しながら擁壁を緑化して自然生態
を復元できる等、石積擁壁10におけると同様の効果が得
られることはいうまでもない。
It is needless to say that the mortar sprayed retaining wall 110 also has the same effects as those of the masonry retaining wall 10 such that the retaining wall can be greened and the natural ecology can be restored while maintaining the strength of the retaining wall. Absent.

【0067】石積擁壁10に即して述べたように、このモ
ルタル吹き付け擁壁110 にも植生棚を設置できる。たと
えば、格子形のコンクリ−ト枠工44の予め打設されたモ
ルタル吹付け擁壁110 に、植生棚の取付けられる形態を
図9〜図11に例示する。
As described in connection with the masonry retaining wall 10, the mortar spray retaining wall 110 can also be provided with vegetation shelves. For example, FIGS. 9 to 11 exemplify a form in which the vegetation shelf is attached to the pre-cast mortar spray retaining wall 110 of the lattice-shaped concrete framer 44.

【0068】つまり、格子形のコンクリ−ト枠工44を打
設した構成では、その水平枠44H、垂直枠44V では、植物
の生育は期待できない。そのため、たとえば、図10から
わかるように、シ−ト124 は、コンクリ−ト枠工44の水
平枠44H を避けた横長の短冊形状とされ、水平枠に沿っ
た領域は、植物の生育しない空白地域となる。そのた
め、階段状の植生棚132 はこの空白地域を解消するよう
に、コンクリ−ト枠工の水平枠44H に沿って設けられ
る。たとえば、植生棚34は、図11に示すように、コンク
リ−ト枠工の水平枠44H に沿って上下に1段づつ設けら
れる。
That is, in the construction in which the lattice-shaped concrete frame work 44 is installed, plant growth cannot be expected in the horizontal frame 44H and the vertical frame 44V. Therefore, for example, as can be seen from FIG. 10, the sheet 124 has a horizontally long strip shape avoiding the horizontal frame 44H of the concrete frame work 44, and the area along the horizontal frame is a blank space where plants do not grow. Become a region. Therefore, the step-like vegetation shelf 132 is provided along the horizontal frame 44H of the concrete frame work so as to eliminate this blank area. For example, as shown in FIG. 11, the vegetation shelves 34 are provided vertically one by one along the horizontal frame 44H of the concrete frame work.

【0069】なお、シ−ト124 は短冊形状とされるが、
ネット126 は多数のシ−トを一体的に覆って敷設され
る。アンカ−ボルト122 がコンクリ−ト枠工の水平枠44
H、垂直枠44V に埋設され、その先端のフックで種子付シ
−ト124、ネット126 をコンクリ−ト枠工に固定してい
る。
Although the sheet 124 has a strip shape,
The net 126 is laid so as to integrally cover many sheets. Anchor bolt 122 is a horizontal frame of concrete framer 44
H, it is embedded in a vertical frame 44V, and the seed-attached sheet 124 and net 126 are fixed to the concrete frame by a hook at the tip thereof.

【0070】たとえば、上下2段の植生棚132 におい
て、上段の植生棚のネット(ジオグリッド)135 の下端
と下段の植生棚のネットの上面内端とを取付金具134、た
とえばオ−クリップでコンクリ−ト枠工の水平枠44H の
アンカ−ボルト122 に連結、固定する。また、上段の植
生棚のネット135 の上面内端、下段の植生棚のネットの
下端を取付金具134 で種子付シ−ト124 上のネット126
にそれぞれ連結する。
For example, in the two upper and lower vegetation shelves 132, the lower end of the net (geogrid) 135 of the upper vegetation shelf and the inner end of the upper surface of the lower vegetation shelf net are attached by fittings 134, for example, o-clips. -Connect and fix to the anchor bolt 122 of the horizontal frame 44H of the grate framer. Also, the inner edge of the upper surface of the net 135 of the upper vegetation shelf and the lower end of the net of the lower vegetation shelf are attached to the net 126 on the seed-attached sheet 124 by the mounting brackets 134.
Respectively.

【0071】図示の形態では、図11に示すように、木本
植物の苗を植生棚132 の緑化基盤で生育することとして
いるが、木本植物、草本植物の種子を付着したシ−トを
植生棚のネット135 の水平部分の下に敷いてもよい。
In the illustrated embodiment, as shown in FIG. 11, seedlings of woody plants are to be grown on the greening base of the vegetation shelf 132. It may be placed under the horizontal part of the net 135 of the vegetation shelf.

【0072】このように、植生棚132 を設ければ、格子
形のコンクリ−ト枠工44の打設されたモルタル吹付け擁
壁110 においても、空白地域を生じることなく、擁壁が
緑で覆われる。
As described above, when the vegetation shelf 132 is provided, even in the mortar sprayed retaining wall 110 on which the lattice-shaped concrete frame work 44 is laid, the retaining wall is green without forming a blank area. To be covered.

【0073】また、基礎地盤上にコンクリ−トを打設し
たコンクリ−ト擁壁(コンクリ−ト打設擁壁)にもこの
発明が応用でき、コンクリ−ト擁壁の一部破断の平面図
を示す図12、図12の線13−13に沿った断面図である図13
を参照しながら、既存のコンクリ−ト擁壁での自然生態
自己復元式法面工法を説明する。上記石積擁壁またはモ
ルタル吹付け擁壁で使用した部材に対応する部材につい
ては、参照符号に200を加えて示す。
The present invention can also be applied to a concrete retaining wall in which concrete is cast on the foundation ground (concrete casting retaining wall), and a plan view of the concrete retaining wall partially broken. 13 is a sectional view taken along line 13-13 in FIG.
The natural ecology self-recovery slope method on the existing concrete retaining wall will be explained with reference to. Parts corresponding to those used in the masonry retaining wall or the mortar spray retaining wall are indicated by adding 200 to the reference numeral.

【0074】参照符号210 は基礎地盤213 に打設された
コンクリ−ト擁壁を示し、コンクリ−ト擁壁210 は、格
子形の小区画を有して形成されている。コンクリ−ト擁
壁210 の上面には、アンカ−ワイヤ−52が、たとえば水
平に架設され、クリップ54をアンカ−ワイヤ−の上から
コンクリ−ト擁壁210 の垂直枠244Vにピン止めしてアン
カ−ワイヤ−を固定している。
Reference numeral 210 indicates a concrete retaining wall cast on the foundation ground 213, and the concrete retaining wall 210 is formed with lattice-shaped small sections. An anchor wire 52 is laid horizontally, for example, horizontally on the upper surface of the concrete retaining wall 210, and the clip 54 is pinned to the vertical frame 244V of the concrete retaining wall 210 from above the anchor wire. -The wire-is fixed.

【0075】コンクリ−ト擁壁210 の水平枠244Hにアン
カ−ボルト222 が埋設され、水平に並んだ一連のアンカ
−ボルトに棚板220 がのせられ、高分子保水材221 が棚
板の上に置かれている。
The anchor bolt 222 is embedded in the horizontal frame 244H of the concrete retaining wall 210, the shelf plate 220 is placed on a series of horizontally arranged anchor bolts, and the polymer water retaining material 221 is placed on the shelf plate. It has been placed.

【0076】種子付シ−ト224、ネット226 が棚板46の上
端に当接して配設され、アンカ−ボルト222 を利用して
コンクリ−ト擁壁210 に固定されている。つまり、図13
からわかるように、アンカ−ボルト222 の上端に座板22
2bを介してナット222aを螺着することによって、ボル
ト、棚板46間にシ−ト224、ネット226 を挟持、固定して
いる。
A seed-attached sheet 224 and a net 226 are arranged in contact with the upper end of the shelf board 46 and fixed to the concrete retaining wall 210 by using anchor bolts 222. That is, FIG.
As can be seen from the above, the seat plate 22 is attached to the upper end of the anchor bolt 222.
The seat 224 and the net 226 are sandwiched and fixed between the bolt and the shelf plate 46 by screwing the nut 222a through the 2b.

【0077】コンクリ−ト擁壁上のアンカ−ワイヤ−25
2、ネット226 に、幅止めワイヤ−58のフック端をそれぞ
れ係止させて、シ−ト224、ネットの膨らみが押さえられ
ている。そして、シ−ト224、コンクリ−ト擁壁の隙間
に、現地発生土(現地表土)が生育土壌として詰められ
て、緑化基盤211 が擁壁前面に造成されている。無論、
根入り孔218 が形成されており、現地発生土の一部は根
入り孔に予め詰められる。
Anchor wire 25 on the concrete retaining wall
2. The swelling of the sheet 224 and the net is suppressed by engaging the hook ends of the width stop wires 58 with the net 226. Then, the locally generated soil (local soil) is filled as a growing soil in the gap between the sheet 224 and the concrete retaining wall, and the greening base 211 is formed in front of the retaining wall. Of course,
A root-entry hole 218 is formed, and part of the locally generated soil is pre-filled in the root-entry hole.

【0078】この実施の形態においても、上記と同様
に、擁壁前面に自然生態を再現できる。特に、図示の形
態では、シ−ト224、ネット226 が棚板220 を介在して固
定されており、図13から明らかなように、擁壁前面での
緑化基盤211 の厚さが棚板の板幅に一致するため、棚板
の板幅に対応して緑化基盤の厚さを調整できる。
Also in this embodiment, the natural ecology can be reproduced on the front surface of the retaining wall in the same manner as above. In particular, in the illustrated form, the sheet 224 and the net 226 are fixed with the shelf plate 220 interposed, and as is clear from FIG. 13, the thickness of the greening base 211 on the front surface of the retaining wall is equal to that of the shelf plate. Since it matches the plate width, the thickness of the greening base can be adjusted according to the plate width of the shelf plate.

【0079】また、棚板220 を水平方向に差し渡して、
緑化基盤211 を上下の小区画に分割し、高分子保水材22
1 を棚板の上に配置しているため、水分がそれぞれの区
画に平均的に滞留し、緑化基盤211 の全面にわたって過
不足なく供給される。
In addition, the shelf board 220 is horizontally extended,
Divide the greening base 211 into upper and lower compartments to
Since 1 is placed on the shelf board, the water stays in each compartment evenly and is supplied to the entire surface of the greening base 211 without excess or deficiency.

【0080】図示しないが、コンクリ−ト擁壁210 にお
いても、上記の植生棚が取付金具34によって適宜設定で
きることはいうまでもない。
Although not shown, it goes without saying that in the concrete retaining wall 210, the above-mentioned vegetation shelf can be appropriately set by the mounting bracket 34.

【0081】上述したこの発明の実施の形態は、この発
明を説明するためのものであり、この発明を何等限定す
るものでなく、この発明の技術範囲内で変形、改造等の
施されたものも全てこの発明に包含されることはいうま
でもない。
The above-described embodiment of the present invention is for explaining the present invention, and is not intended to limit the present invention in any way. Modifications and alterations are made within the technical scope of the present invention. Needless to say, all are included in this invention.

【0082】たとえば、木本植物、草本植物の種子をネ
ットに付着しておくとともに、草本植物、木本植物の苗
等を生育土壌に予め植え、種子からの生育と苗からの生
育を併存させてもよい。
For example, seeds of a herbaceous plant or herbaceous plant are attached to a net, and seedlings of a herbaceous plant or a herbaceous plant are planted in advance in a growing soil to allow growth from seeds and growth from seedlings to coexist. May be.

【0083】[0083]

【発明の効果】上記のように、この発明に係る自然生態
自己復元式法面工法によれば、現地の表土を生育土壌と
した緑化基盤を擁壁前面に造成しているため、シ−トに
付着した種子は生育土壌からの滋養分を吸収して成長
し、ネットの網目を越えて外に伸びることから、擁壁前
面が緑で覆われて、自然生態が早期に復元される。
As described above, according to the natural ecology self-restoration slope method according to the present invention, since the greening base whose local topsoil is the growing soil is formed on the front surface of the retaining wall, the sheet is formed. The seeds attached to the seeds grow by absorbing nutrients from the growing soil and extend outside beyond the mesh of the net, so that the front of the retaining wall is covered with green and the natural ecology is restored at an early stage.

【0084】現地近隣で採取した表土を生育土壌として
いるため、その土壌に堆積した種子による草本植物等の
生育が期待され、近隣の本来の自然林に近い状態で緑化
される。加えて、現地周辺の植物調査に基づいて在来種
の種子を播種しているため、現地の植生態と違和感のな
い自然生態が再現される。
Since the topsoil collected in the vicinity of the site is used as the growing soil, it is expected that seeds deposited on the soil will grow herbaceous plants and the like, and will be greened in a state close to the original natural forest in the vicinity. In addition, since the seeds of the native species are sown based on the plant survey around the site, a natural ecology that is not uncomfortable with the local plant ecology can be reproduced.

【0085】根入り孔を通じて、植物の根は擁壁背後の
地盤(背面地盤)にも侵入し、背面地盤に張り巡らされ
て水分を吸収するため、植物が大きく成長できる。ま
た、その根系が背面地盤に張り巡らされ、生育土壌(緑
化基盤)が十分な強度のもとで擁壁前面に保持される。
Through the root-entry holes, plant roots also invade the ground behind the retaining wall (rear surface ground) and are stretched around the rear surface soil to absorb water, so that the plant can grow large. In addition, the root system is stretched around the back ground, and the growing soil (greening base) is held on the front surface of the retaining wall with sufficient strength.

【0086】根入り孔によって、擁壁前面の緑化基盤、
背面地盤を連通しているため、根入り孔が水抜き孔とし
ても機能する。
With the root-entry holes, the greening base on the front of the retaining wall,
Since the back ground is communicated, the root entry hole also functions as a drainage hole.

【0087】根入り孔にパイプを入れ、パイプの外面に
モルタルを流してパイプを擁壁、背面地盤に固定すれ
ば、根入り孔がアンカ−としても機能し、強固な法面が
確保される。
If the pipe is put in the root hole and the mortar is poured on the outer surface of the pipe to fix the pipe to the retaining wall and the back ground, the root hole also functions as an anchor and a strong slope is secured. .

【0088】土壌中での経年変化によって土壌中で自然
分解して消滅するため、種子付のシ−トは種子の発芽、
植物の生育等の妨げとならず、土壌も汚染しない。ま
た、シ−トの分解、消滅によって緑化基盤の表土が露出
するため、成長した植物の落葉、落枝が生育土壌に取り
込まれて新たな肥料源が得られる。
Since the sheets with seeds are naturally decomposed and disappear in the soil due to aging in the soil, the seed-attached sheet germinated seeds,
It does not hinder the growth of plants and does not pollute the soil. In addition, since the topsoil of the greening base is exposed due to the decomposition and disappearance of the sheet, the leaves and branches of the grown plant are taken into the growing soil to obtain a new fertilizer source.

【0089】固定したネットで緑化基盤を押さえている
ため、法面に必要な強度が確保されるとともに、緑化に
必要な厚さの緑化基盤が得られる。
Since the fixed green net holds down the greening base, the strength required for the slope is secured and the greening base having the thickness required for greening is obtained.

【0090】根入り孔にパイプを入れ、パイプの外面に
モルタルを流してパイプを擁壁、背面地盤に固定すれ
ば、根入り孔がアンカ−としても機能し、強固な法面が
得られる。
If a pipe is put in the root hole and mortar is poured on the outer surface of the pipe to fix the pipe to the retaining wall and the back ground, the root hole also functions as an anchor and a strong slope is obtained.

【0091】高分子保水材をのせた棚板を擁壁の前面に
設ければ、高分子保水材が水分を吸収、保持して、含水
率、保水性の低下が防止される。
By providing a shelf board on which the polymeric water retaining material is mounted on the front surface of the retaining wall, the polymeric water retaining material absorbs and retains water, and the decrease in water content and water retention is prevented.

【0092】棚板を上下にずらして隙間を設ければ、水
分が一ケ所に滞留しないで上下に満遍なく配分されると
ともに、生育土壌が棚板に邪魔されずに擁壁前面の隙間
に詰められる。
If the shelves are vertically shifted to provide a gap, the water is evenly distributed vertically without staying in one place, and the growing soil is filled in the gap on the front surface of the retaining wall without being disturbed by the shelves. .

【0093】そして、この発明の自然生態自己復元式法
面構造によれば、近隣の本来の自然林に近い状態で緑化
され、現地の植生態と違和感のない自然生態が早期に再
現される。
According to the natural ecology self-restoration type slope structure of the present invention, the natural ecology that is green in the state close to the original natural forest in the vicinity and has no discomfort with the local plant ecology can be reproduced at an early stage.

【0094】植物の根が根入り孔を通じて擁壁背後の地
盤(背面地盤)にも侵入し、植物が大きく成長するとと
もに、生育土壌(緑化基盤)が十分な強度のもとで保全
される。
The roots of the plant invade the ground behind the retaining wall (rear ground) through the root-entry holes, the plant grows large, and the growing soil (greening base) is preserved with sufficient strength.

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明に係る自然生態自己復元式法面工法に
よって緑化基盤をその前面に造成した石積擁壁の概略縦
断面図である。
FIG. 1 is a schematic vertical cross-sectional view of a masonry retaining wall in which a greening foundation is formed on the front surface by a natural ecology self-recovery slope method according to the present invention.

【図2】図1に示す石積擁壁の正面図である。2 is a front view of the masonry retaining wall shown in FIG. 1. FIG.

【図3】図1に示す石積擁壁のA部の拡大図である。FIG. 3 is an enlarged view of a portion A of the masonry retaining wall shown in FIG. 1.

【図4】棚板の斜視図である。FIG. 4 is a perspective view of a shelf board.

【図5】棚板を後付けした図3に対応した石積擁壁の拡
大図である。
FIG. 5 is an enlarged view of a masonry retaining wall corresponding to FIG. 3 with a shelf plate attached later.

【図6】一体的なネットを使用した棚板の斜視図であ
る。
FIG. 6 is a perspective view of a shelf board using an integral net.

【図7】この発明に係る自然生態自己復元式法面工法に
よって緑化基盤をその前面に造成したモルタル吹付け擁
壁の概略縦断面図である。
FIG. 7 is a schematic vertical cross-sectional view of a mortar spray retaining wall having a greening base formed on the front surface thereof by the natural ecology self-recovery slope method according to the present invention.

【図8】図7に示すモルタル吹付け擁壁のA部の拡大図
である。
8 is an enlarged view of a portion A of the mortar spray retaining wall shown in FIG.

【図9】コンクリ−ト枠工を打設したモルタル吹付け擁
壁の概略縦断面図である。
FIG. 9 is a schematic vertical sectional view of a mortar spray retaining wall on which a concrete frame work is cast.

【図10】図9に示すモルタル吹付け擁壁の正面図であ
る。
FIG. 10 is a front view of the mortar spray retaining wall shown in FIG. 9.

【図11】図9に示すモルタル吹付け擁壁のA部の拡大
図である。
11 is an enlarged view of part A of the mortar spray retaining wall shown in FIG.

【図12】この発明に係る自然生態自己復元式法面工法
によって緑化基盤をその前面に造成したコンクリ−ト擁
壁の一部破断の平面図である。
FIG. 12 is a partially cutaway plan view of a concrete retaining wall having a greening base formed on the front surface thereof by the natural ecology self-restoration slope method according to the present invention.

【図13】図12に示すコンクリ−ト擁壁の線13−13に
沿った概略縦断面図である。
13 is a schematic longitudinal sectional view of the concrete retaining wall shown in FIG. 12, taken along line 13-13.

【符号の説明】[Explanation of symbols]

10、110、210 擁壁 11、111、211 緑化基盤 12 石材 13、113、213 背面地盤 18、118、218 根入り孔 20、220 棚板 21、121、221 高分子保水材 22、122、222 アンカ−ボルト 24、124、224 シ−ト(不織布) 26、126、226 ネット(硬質樹脂ネット) 32、132 植生棚 34、134 取付金具 35、135 ネット 36、136 土留めシ−ト 38、138 保水シ−ト 42 背面排水材 44、244 コンクリ−ト枠工 58 幅止めワイヤ− 10, 110, 210 Retaining wall 11, 111, 211 Greening base 12 Stone material 13, 113, 213 Rear ground 18, 118, 218 Root hole 20, 220 Shelf board 21, 121, 221 Polymer water retention material 22, 122, 222 Anchor bolt 24,124,224 Sheet (nonwoven fabric) 26,126,226 Net (hard resin net) 32,132 Vegetation shelf 34,134 Mounting bracket 35,135 Net 36,136 Earth retaining sheet 38,138 Water retention sheet 42 Back drainage material 44, 244 Concrete frame work 58 Width stop wire-

Claims (13)

【特許請求の範囲】[Claims] 【請求項1】 植物の根の挿通可能な根入り孔を擁壁を
貫通して背面地盤に設ける工程と、 現地近隣の地盤の掘削により生じた掘削土から石礫、根
系等を除去した現地発生土からなる植物の生育土壌の一
部を根入り孔に詰める工程と、 木本植物の種子、草本植物の種子のうち、少なくとも木
本植物の種子の付着され、土壌中で自然分解可能なシ−
トを、擁壁から離して擁壁前面に配置する工程と、 植物の幹の通過可能なネットで上記種子付シ−トを覆
い、シ−トとともにネットを固定する工程と、 上記生育土壌をシ−ト、擁壁前面の隙間に敷設して緑化
基盤とする工程と、 を備えた自然生態自己復元式法面工法。
1. A step of forming a root-entry hole through which a root of a plant can be inserted through a retaining wall in a back ground, and a site where stones, roots, etc. are removed from excavated soil generated by excavation of the ground in the vicinity of the site. The process of filling a part of the growing soil of the plant consisting of generated soil into the root-entry hole, and at least the seeds of the woody plant among the seeds of the woody plant and the seeds of the herbaceous plant are attached and can be naturally decomposed in the soil. See
The seed is separated from the retaining wall and placed on the front surface of the retaining wall, the step of covering the seed-attached sheet with a net through which the trunk of the plant can pass, and fixing the net together with the sheet; A natural ecology self-recovery slope method that includes the steps of laying in the gap between the seat and the front of the retaining wall to form a greening base.
【請求項2】 植物の根の挿通可能な根入り孔を擁壁を
貫通して背面地盤に設ける工程と、 現地近隣の地盤の掘削により生じた掘削土から石礫、根
系等を除去した現地発生土からなる植物の生育土壌の一
部を根入り孔に詰める工程と、 木本植物の種子、草本植物の種子のうち、少なくとも木
本植物の種子の付着され、土壌中で自然分解可能なシ−
トを、擁壁から離して擁壁前面に配置する工程と、 植物の幹の通過可能なネットで上記種子付シ−トを覆
い、シ−トとともにネットを固定する工程と、 棚板を上下でずらして擁壁に取付け、ネット、擁壁前面
の間で棚板上に高分子保水材をのせる工程と、 上記生育土壌をシ−ト、擁壁前面の隙間に敷設して緑化
基盤とする工程と、 を備えた自然生態自己復元式法面工法。
2. A step of forming a root-entry hole through which a root of a plant can be inserted through a retaining wall in a back ground, and a site where stones, roots, etc. are removed from excavated soil generated by excavation of the ground in the vicinity of the site. The process of filling a part of the growing soil of the plant consisting of generated soil into the root-entry hole, and at least the seeds of the woody plant among the seeds of the woody plant and the seeds of the herbaceous plant are attached and can be naturally decomposed in the soil. See
The seeds away from the retaining wall and in front of the retaining wall; covering the seed-attached sheet with a net through which the plant trunk can pass and fixing the net together with the sheet; Install the polymer water retention material on the shelf between the net and the front surface of the retaining wall, and install the growing soil in the space between the seat and the front surface of the retaining wall to form a greening base. The natural ecology self-recovery slope method with
【請求項3】 植物の根の挿通可能な根入り孔を擁壁を
貫通して背面地盤に設け、根入り孔にパイプを挿入し、
パイプ外面にモルタルを流して固定する工程と、 現地近隣の地盤の掘削により生じた掘削土から石礫、根
系等を除去した現地発生土に肥料を混合して植物の生育
土壌を作る工程と、 生育土壌の一部を根入り孔に詰める工程と、 木本植物の種子、草本植物の種子のうち、少なくとも木
本植物の種子の付着され、土壌中で自然分解可能なシ−
トを、擁壁から離して擁壁前面に配置する工程と、 植物の幹の通過可能なネットで上記種子付シ−トを覆
い、シ−トとともにネットを固定する工程と、 上記生育土壌をシ−ト、擁壁前面の隙間に敷設して緑化
基盤とする工程と、 を備えた自然生態自己復元式法面工法。
3. A rooting hole through which a root of a plant can be inserted is provided in the back ground through the retaining wall, and a pipe is inserted into the rooting hole,
A step of flowing and fixing mortar on the outer surface of the pipe, and a step of mixing fertilizer with the locally generated soil from which the gravel and root system have been removed from the excavated soil produced by excavation of the ground near the site to create a plant growth soil, A step of filling a part of the growing soil in the root-entry holes, and among the seeds of woody plants and seeds of herbaceous plants, at least the seeds of woody plants are attached,
The seed is separated from the retaining wall and placed on the front surface of the retaining wall, the step of covering the seed-attached sheet with a net through which the trunk of the plant can pass, and fixing the net together with the sheet; A natural ecology self-recovery slope method that includes the steps of laying in the gap between the seat and the front of the retaining wall to form a greening base.
【請求項4】 シ−トが不織布であり、 擁壁または背後地盤に埋め込んだアンカ−ボルトにシ−
ト、ネットを固定させた請求項1ないし3のいずれか記
載の自然生態自己復元式法面工法。
4. The sheet is a non-woven fabric, and the sheet is attached to an anchor bolt embedded in a retaining wall or a back ground.
The natural ecological self-restoration slope construction method according to any one of claims 1 to 3, wherein the gut and net are fixed.
【請求項5】 断面略L字形の植生棚を取付金具でネッ
トに連結し、前記生育土壌を植生棚に詰めて水平な植生
面を確保している請求項1ないし4のいずれか記載の自
然生態自己復元式法面工法。
5. A natural plant according to claim 1, wherein a vegetation shelf having a substantially L-shaped cross section is connected to a net by a fitting, and the growing soil is packed in the vegetation shelf to secure a horizontal vegetation surface. Ecological self-recovery slope method.
【請求項6】 断面略L字形の植生棚を取付金具でネッ
トに連結し、前記生育土壌を植生棚に詰めて水平な植生
面を確保するとともに、植生棚の略V字形の底に保水シ
−トを配置して保水ラインを確保している請求項1ない
し4のいずれか記載の自然生態自己復元式法面工法。
6. A vegetation shelf having a substantially L-shaped cross section is connected to a net by a mounting bracket, and the growing soil is packed in the vegetation shelf to ensure a horizontal vegetation surface, and at the bottom of the V-shaped vegetation shelf is a water retaining system. -The natural ecological self-restoration slope construction method according to any one of claims 1 to 4, wherein a water retaining line is secured by arranging a grate.
【請求項7】 背面排水材を擁壁上に設け、この背面排
水材を介して生育土壌を敷設している請求項1〜6のい
ずれか記載の自然生態自己復元式法面工法。
7. The natural ecology self-restoration slope method according to claim 1, wherein the rear drainage material is provided on the retaining wall, and the growing soil is laid through the rear drainage material.
【請求項8】 植物の根の挿通可能な根入り孔を背面の
基礎地盤に設ける工程と、 現地近隣の地盤の掘削により生じた掘削土から石礫、根
系等を除去した現地発生土からなる植物の生育土壌の一
部を根入り孔に詰める工程と、 格子状のコンクリ−ト枠工を基礎地盤上に築く工程と、 コンクリ−ト枠工の水平枠に一連のアンカ−ボルトを埋
設する工程と、 アンカ−ボルトに棚板を立て掛けて、コンクリ−ト枠工
を上下方向に区切る工程と、 木本植物の種子、草本植物の種子のうち、少なくとも木
本植物の種子の付着され、土壌中で自然分解可能のシ−
トを、棚板を隔てて基礎地盤前面に被せる工程と、 植物の幹の通過可能な大きさの網目のネットで種子付シ
−トを覆う工程と、 アンカ−ボルトの上端をねじ止めして、種子付シ−ト、
ネットを棚板に挟持、固定する工程と、 上記生育土壌をネット、基礎地盤前面の隙間に敷設した
自然生態自己復元式法面工法。
8. A process of forming a root-entry hole through which a root of a plant can be inserted in a back ground, and a locally-generated soil obtained by removing gravel and roots from excavated soil produced by excavation of the ground near the site. The process of filling a part of the plant growth soil into the root-entry holes, the process of constructing a grid-shaped concrete frame on the foundation ground, and the embedding of a series of anchor bolts in the horizontal frame of the concrete frame. A step of leaning a shelf board on the anchor bolt to vertically divide the concrete frame work, and a seed of a woody plant, a seed of a herbaceous plant, at least a seed of a woody plant is adhered to the soil, A naturally degradable seam
Of the seeds on the front of the foundation ground by separating the shelves, covering the seeded sheet with a mesh net of a size that allows passage of the plant trunk, and screwing the upper ends of the anchor bolts. , Seeded sheet,
The process of sandwiching and fixing the net on the shelf, and the natural ecological self-restoration slope method in which the above-mentioned growing soil was laid in the space between the net and the front of the foundation ground.
【請求項9】 棚板上に高分子保水材を配置し、 一連のアンカ−ワイヤ−をコンクリ−ト枠上に張り巡ら
し、 ネットを硬質樹脂ネットとし、両端フックの幅止めワイ
ヤ−で硬質樹脂ネット、アンカ−ワイヤ−を連結してか
ら生育土壌を敷設した請求項8記載の自然生態自己復元
式法面工法。
9. A water-retaining polymer material is placed on a shelf board, and a series of anchor wires are stretched around a concrete frame. The net is made of a hard resin net, and a width-fixing wire for hooks at both ends is made of hard resin. The natural ecology self-restoration slope method according to claim 8, wherein the growing soil is laid after connecting the net and the anchor wire.
【請求項10】 現地近隣の掘削土から石礫、根系等を
除去した土壌を植物の生育土壌として、既存の擁壁前面
に敷設して緑化基盤とし、 擁壁を貫通して背面地盤に設けられ、植物の根の挿通可
能な根入り孔に上記の生育土壌が詰められ、 木本植物の種子、草本植物の種子のうち、少なくとも木
本植物の種子の付着され、土壌中で自然分解可能のシ−
トで緑化基盤の表面が覆われ、 植物の幹の通過可能な固定したネットがシ−トに被せら
れている自然生態自己復元式法面構造。
10. The soil from which gravel and roots have been removed from excavated soil near the site is used as a plant growth soil and is laid on the front of the existing retaining wall to serve as a greening base. The above-mentioned growing soil is packed into the root-entry holes that can be inserted into the roots of plants, and at least the seeds of woody plants among the seeds of woody plants and the seeds of herbaceous plants are attached and can be naturally decomposed in soil. The sea
A natural ecology self-recovery slope structure in which the surface of the greening base is covered with a sheet, and the sheet is covered with a fixed net through which the trunk of the plant can pass.
【請求項11】 現地近隣の掘削土から石礫、根系等を
除去し肥料を混合した土壌を植物の生育土壌として、既
存の擁壁前面に敷設して緑化基盤とし、 擁壁を貫通して背面地盤に設けられ、植物の根の挿通可
能な根入り孔に上記の生育土壌が詰められ、 木本植物の種子、草本植物の種子のうち、少なくとも木
本植物の種子の付着され、土壌中で自然分解可能のシ−
トで緑化基盤の表面が覆われ、 植物の幹の通過可能な固定したネットがシ−トに被せら
れている自然生態自己復元式法面構造。
11. The soil in which gravel, roots, etc. have been removed from the excavated soil in the vicinity of the site and mixed with fertilizer has been laid on the front surface of the existing retaining wall as a plant growth soil, and has been used as a greening base to penetrate the retaining wall It is provided in the back ground, and the above-mentioned growing soil is filled in the root-entry holes through which the roots of the plants can be inserted, and at least the seeds of the woody plants among the seeds of the woody plants and the seeds of the herbaceous plants are adhered to the soil. A seam that can be decomposed naturally
A natural ecology self-recovery slope structure in which the surface of the greening base is covered with a sheet, and the sheet is covered with a fixed net through which the trunk of the plant can pass.
【請求項12】 現地近隣の掘削土から石礫、根系等を
除去し肥料を混合した土壌を植物の生育土壌として、既
存の擁壁前面に敷設して緑化基盤とし、 擁壁を貫通して背面地盤に設けられた植物の根の挿通可
能な根入り孔にパイプを挿入し、パイプ外面にモルタル
を流してパイプが擁壁、背面地盤に固定されるともに、
パイプに上記の生育土壌の一部が詰められ、 現地周辺の植物調査に基づいて選定された在来種の木本
植物の種子、草本植物の種子のうちの、少なくとも木本
種子の付着され、土壌中で自然分解可能な不織布からな
るシ−トで緑化基盤の表面が覆われ、 植物の幹の通過可能な固定したネットでシ−トが覆われ
た自然生態自己復元式法面構造。
12. The soil in which gravel, roots, etc. have been removed from the excavated soil near the site and mixed with fertilizer is used as a plant growth soil and is laid on the front of the existing retaining wall to serve as a greening base, and penetrates the retaining wall. Insert the pipe into the root-entry hole that can be inserted through the roots of the plant provided on the back ground, pour the mortar on the pipe outer surface and the pipe is fixed to the retaining wall, back ground,
A part of the above-mentioned growing soil is packed in a pipe, and at least woody seeds are adhered among seeds of native plant and herbaceous plant selected based on a plant survey around the site, and seeds of herbaceous plant, A natural ecological self-recovery slope structure in which the surface of the greening base is covered with a sheet made of non-woven fabric that can be naturally decomposed in soil, and the sheet is covered with a fixed net through which the plant trunk can pass.
【請求項13】 現地近隣の掘削土から石礫、根系等を
除去した土壌を植物の生育土壌として、既存の擁壁前面
に敷設して緑化基盤とし、 擁壁を貫通して背面地盤に設けられ、植物の根の挿通可
能な根入り孔に上記の生育土壌が詰められ、 木本植物の種子、草本植物の種子のうち、少なくとも木
本植物の種子の付着され、土壌中で自然分解可能のシ−
トで緑化基盤の表面が覆われ、 植物の幹の通過可能な固定したネットがシ−トに被せら
れ断面略逆L字形の植生棚が取付金具によってネットに
連結され、上記の生育土壌が植生棚に詰められて水平な
植生面を確保している自然生態自己復元式法面構造。
13. A soil from which gravel and roots have been removed from excavated soil in the vicinity of the site is used as a plant growth soil and is laid on the front of the existing retaining wall to serve as a greening base. The above-mentioned growing soil is packed into the root-entry holes that can be inserted into the roots of plants, and at least the seeds of woody plants among the seeds of woody plants and the seeds of herbaceous plants are attached and can be naturally decomposed in soil. The sea
The surface of the greening base is covered with a sheet, a fixed net through which the trunk of the plant can pass is covered with a sheet, and a vegetation shelf with a substantially inverted L-shaped cross section is connected to the net by a mounting bracket, and the above-mentioned growing soil is vegetated. Natural ecological self-recovery slope structure that is packed in shelves and secures a horizontal vegetation surface.
JP8144902A 1996-05-16 1996-05-16 Natural ecological self-restoration type slope construction method and slope structure Expired - Lifetime JP3053071B2 (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Publication Number Publication Date
JPH09302667A true JPH09302667A (en) 1997-11-25
JP3053071B2 JP3053071B2 (en) 2000-06-19

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JP2001164576A (en) * 1999-12-08 2001-06-19 Nisshoku Corp Slope greening method and vegetation base body used therefor
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JP2008291487A (en) * 2007-05-24 2008-12-04 Central Nippon Expressway Co Ltd Method of constructing drainage facility on slope of soil with high weathering tendency and water channel block used for the method
JP2014015754A (en) * 2012-07-09 2014-01-30 Shinzo Tsunemoto Mounting structure for pressing net for sandbag or the like in slope protection
CN104563141A (en) * 2014-12-25 2015-04-29 贵州省交通规划勘察设计研究院股份有限公司 Protecting structure for big-gradient stone slope
CN104563136A (en) * 2014-12-25 2015-04-29 贵州省交通规划勘察设计研究院股份有限公司 Water-collecting irrigation device for slope protection in karst region
CN104563137A (en) * 2014-12-25 2015-04-29 贵州省交通规划勘察设计研究院股份有限公司 Large-gradient stone side slope protection structure based on rainwater collecting bags
CN104563134A (en) * 2014-12-25 2015-04-29 贵州省交通规划勘察设计研究院股份有限公司 Protecting structure for big-gradient stone slope
CN104563135A (en) * 2014-12-25 2015-04-29 贵州省交通规划勘察设计研究院股份有限公司 Large-gradient stone side slope protection structure based on trapezoidal plant component
CN104563138A (en) * 2014-12-25 2015-04-29 贵州省交通规划勘察设计研究院股份有限公司 Protecting structure for big-gradient stone slope
CN104594366A (en) * 2014-12-25 2015-05-06 贵州省交通规划勘察设计研究院股份有限公司 Large-gradient rocky slope caring structure based on triangular cone vegetation components
CN106193067A (en) * 2016-08-30 2016-12-07 江苏绿岩生态技术股份有限公司 A kind of plant pad Ecological Retaining Wall for mine phytoremediation and method thereof
CN106930303A (en) * 2017-05-05 2017-07-07 王力刚 A kind of soil-slope biological duct draining protective slope structure and its construction method
CN112956352A (en) * 2021-01-28 2021-06-15 江苏绿之源生态建设有限公司 Construction method of foamed concrete vegetation nutrition planting groove
CN113431057A (en) * 2021-05-08 2021-09-24 甘肃恒通路桥工程有限公司 Loess slope ecological protection method

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