JP2002167763A - Surface soil spraying greening method of slope face - Google Patents
Surface soil spraying greening method of slope faceInfo
- Publication number
- JP2002167763A JP2002167763A JP2000361033A JP2000361033A JP2002167763A JP 2002167763 A JP2002167763 A JP 2002167763A JP 2000361033 A JP2000361033 A JP 2000361033A JP 2000361033 A JP2000361033 A JP 2000361033A JP 2002167763 A JP2002167763 A JP 2002167763A
- Authority
- JP
- Japan
- Prior art keywords
- topsoil
- spraying
- slope
- thickness
- soil
- 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.)
- Pending
Links
- 238000005507 spraying Methods 0.000 title claims abstract description 29
- 239000002689 soil Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims description 24
- 239000000463 material Substances 0.000 claims abstract description 24
- 239000002344 surface layer Substances 0.000 claims abstract description 6
- 239000007921 spray Substances 0.000 claims description 16
- 239000007767 bonding agent Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 abstract description 15
- 230000012010 growth Effects 0.000 abstract description 3
- 239000011230 binding agent Substances 0.000 abstract description 2
- 241000894007 species Species 0.000 description 13
- 238000010276 construction Methods 0.000 description 12
- 241000196324 Embryophyta Species 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 241000718541 Tetragastris balsamifera Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000007530 organic bases Chemical class 0.000 description 3
- 230000008635 plant growth Effects 0.000 description 3
- 238000007873 sieving Methods 0.000 description 3
- 206010016807 Fluid retention Diseases 0.000 description 2
- 235000016677 Lespedeza bicolor Nutrition 0.000 description 2
- 240000000604 Lespedeza bicolor Species 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 235000003261 Artemisia vulgaris Nutrition 0.000 description 1
- 240000006891 Artemisia vulgaris Species 0.000 description 1
- 235000006716 Broussonetia kazinoki Nutrition 0.000 description 1
- 240000006248 Broussonetia kazinoki Species 0.000 description 1
- 241000722863 Cortaderia jubata Species 0.000 description 1
- 241000234643 Festuca arundinacea Species 0.000 description 1
- 241000508723 Festuca rubra Species 0.000 description 1
- 241000201976 Polycarpon Species 0.000 description 1
- 241001480065 Quercus serrata Species 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 241000656145 Thyrsites atun Species 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 235000008216 herbs Nutrition 0.000 description 1
- 150000007529 inorganic bases Chemical class 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Cultivation Of Plants (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は法面の表土吹付緑化
方法に係り、土地造成、道路建設等により発生する急勾
配の切土法面への表土吹付緑化方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for spraying topsoil on a slope, and more particularly to a method for spraying topsoil on a steep cut slope generated by land preparation, road construction, or the like.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】樹林の
ある地域での切土・盛土を伴う土木工事では、森林の伐
採・除根に続き表土が剥ぎ取り除去されるが、この現場
発生表土は土木工事では廃棄物的に扱われている。しか
し表土は、植物が生育するのに適した土壌であり、厚み
１cmが生成されるのに数十年〜１００年が必要と言われ
る天然の資源であるため有効活用が望まれる。2. Description of the Related Art In civil engineering work involving cutting and embankment in an area with a forest, the topsoil is stripped and removed following the cutting and root removal of the forest. It is treated as waste in civil engineering work. However, topsoil is a soil suitable for plants to grow, and it is said that it is a natural resource that requires several decades to 100 years to produce 1 cm in thickness, and effective utilization is desired.
【０００３】自然界ではほとんどの植物が表土の上に生
育していることから分かるように、表土は植物生育に適
した土壌である。たとえば表土には、周辺に生育する植
物から落下したり風や鳥に運ばれて、たくさんの種子が
供給されている。このような種子の一部は表土中で休眠
状態となる。これは埋土種子と呼ばれる。表土はこのよ
うな埋土種子を含んでいるため、採取した表土を地面に
撒き出すだけで様々な植物が発芽する。表土を使えば人
為的に種子を配合しなくても、多様な郷土種が生育する
植生を創出することが可能である。As can be seen from the fact that most plants grow on topsoil in nature, topsoil is a soil suitable for plant growth. For example, the topsoil is supplied with many seeds by falling from plants growing around and being carried by wind and birds. Some of these seeds are dormant in the topsoil. This is called buried seed. Since topsoil contains such buried seeds, various plants will germinate simply by sprinkling the collected topsoil on the ground. By using topsoil, it is possible to create vegetation in which various local species grow without artificially mixing seeds.
【０００４】また、近年、環境アセスメントの結果を受
けて、緑化を行う際に「地域外から植物を持ち込まず
に、現場周辺の樹林から直に種子を採取するなどしてこ
れを緑化に用いる」ようにという要請もある。これは地
域の植物の遺伝的特性を保全するための配慮である。種
子の採取は大きな手間であり高コストとなるが、埋土種
子は地域由来のものであるため、表土を利用した緑化は
この要求を比較的容易にクリアすることができる。[0004] In recent years, in response to the results of environmental assessments, when performing greening, "they are used for greening by directly collecting seeds from the forest around the site without bringing in plants from outside the area." There is also a request to do so. This is a consideration for preserving the genetic characteristics of local plants. Although seed collection is laborious and costly, burying seeds are of local origin, so greening using topsoil can meet this requirement relatively easily.
【０００５】従来、表土を撒き出すことで埋土種子を発
芽・生育させる緑化方法は、平坦地や盛土法面などでは
従来より実施されてきた。しかし、勾配が比較的急な切
土法面で表土を安定させる方法が確立されておらず、埋
土種子を利用した急勾配法面での緑化はほとんど行われ
てこなかった。そこで、本発明の目的は上述した従来の
技術が有する問題点を解消し、埋土種子を含む表土を利
用した法面の表土吹付緑化方法を提供することにある。Conventionally, a greening method for germinating and growing buried seeds by sowing topsoil has been conventionally carried out on flat lands and embankment slopes. However, no method has been established to stabilize topsoil on cut slopes with relatively steep slopes, and greening on steep slopes using buried seeds has hardly been performed. Therefore, an object of the present invention is to solve the above-mentioned problems of the conventional technology and to provide a method for spraying a topsoil on a slope using topsoil containing buried seeds.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明は表層表土を所定厚さで剥ぎ取り採取し、該
表層表土をふるい掛けして礫、残存根を除去した上、少
なくとも土壌改良材と、接合剤と撹拌混合し、該混合し
て得られた吹付材料を、対象吹付法面に所定吹付厚で吹
き付けるようにしたことを特徴とする。Means for Solving the Problems In order to achieve the above object, according to the present invention, the surface topsoil is peeled off at a predetermined thickness, and the surface topsoil is sieved to remove gravels and residual roots. The soil improving material and the bonding agent are stirred and mixed, and the sprayed material obtained by the mixing is sprayed onto the target sprayed slope with a predetermined sprayed thickness.
【０００７】前記表層表土は、表層から３０cm以内の表
土を剥ぎ取り採取することが好ましい。[0007] It is preferable that the topsoil of the surface layer be stripped and sampled within 30 cm from the surface layer.
【０００８】このとき前記表層表土の容積配合率は、４
０％以上とすることが好ましい。このとき容積配合率
は、吹付後の容積にて計算する。At this time, the volume mixing ratio of the surface soil is 4
It is preferred to be 0% or more. At this time, the volume mixing ratio is calculated by the volume after spraying.
【０００９】また、前記吹付厚は、３cm以上とすること
が好ましい。It is preferable that the spray thickness is 3 cm or more.
【００１０】[0010]
【発明の実施の形態】以下、本発明の法面の表土吹付緑
化方法の一実施の形態の施工手順について図１を参照し
て説明する。まず、施工対象となる地域の樹林の樹種調
査等を行った後、所定施工範囲にわたって伐採、除根を
行い、表土の剥ぎ取りを行う。この際、埋土種子が集中
する表土の表面部分（表層から数cm）を確実に剥ぎ取る
ように、その剥ぎ取り厚さが３０cm程度以内となるよう
に、剥ぎ取り作業に用いる重機のアタッチメントを選定
することが好ましい。採取した表土はダンプトラック等
に積み込み、緑化対象の法面付近まで運搬し、集積して
おく（ステップ１００）。このとき表土１次ふるい（ふ
るい目４０〜５０mm程度）作業を行う（ステップ１１
０）。この１次ふるい作業により、表土中に残っている
礫や落枝葉、根などを除去する。さらに法面の吹付工
（植生工）まで表土を、少し勾配があるなどの滞水しな
い場所に、表面浸食および雨水浸透の生じない形状に堆
積し保管する（ステップ１２０）。さらに表土及びマサ
土は、他の吹付材料との混合のために使用する攪拌機に
投入される前に２次ふるい（ふるい目２０mm）によるふ
るい作業によって礫、細かい根等を除去する（ステップ
１３０）。次いで、攪拌機にふるい表土及びふるいマサ
土の他、土壌改良材としての有機質系基盤材、肥料、及
び高分子樹脂系接合剤とを所定混合比で投入し、撹拌を
行う（ステップ１４０）。混合比としては表−１に示し
た配合比ごとの設定が可能である。なお、有機質系基盤
材は空気を多く含む膨軟な材料であるため、混合・撹拌
・吹付によりその体積は１／２に圧縮される。表中の体
積は混合前の体積である。また、１バッチとは吹付後に
おける１m3 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A construction procedure of an embodiment of a method for greening a slope according to the present invention will be described below with reference to FIG. First, after conducting a tree species survey of the forests in the area to be constructed, logging, root removal and stripping of topsoil are performed over a predetermined construction range. At this time, the attachment of the heavy machinery used for the stripping work should be adjusted so that the surface portion (several cm from the surface layer) of the topsoil where the buried seeds are concentrated is surely stripped and the stripping thickness is within about 30 cm. It is preferable to select one. The collected topsoil is loaded on a dump truck or the like, transported to the vicinity of a slope to be greened, and accumulated (step 100). At this time, the primary soil sieving (about 40 to 50 mm sieve) is performed (step 11).
0). By this primary sieving operation, gravel, litter, leaves and roots remaining in the topsoil are removed. Further, the topsoil is deposited and stored in a shape that does not cause surface erosion and rainwater permeation in a place where there is no water retention such as a slight gradient until the spraying work (vegetation work) on the slope (step 120). Further, the topsoil and masa soil are removed by a sieving operation with a secondary sieve (a sieve of 20 mm) before being put into a stirrer used for mixing with other sprayed materials to remove gravels, fine roots, and the like (step 130). . Next, an organic base material, a fertilizer, and a polymer resin-based binder as a soil improving material are added to the stirrer in addition to the sieve topsoil and the sieve masa soil at a predetermined mixing ratio, and the mixture is stirred (step 140). The mixing ratio can be set for each mixing ratio shown in Table 1. Since the organic base material is a swelling material containing a lot of air, its volume is reduced to half by mixing, stirring and blowing. The volume in the table is the volume before mixing. One batch is 1 m 3 after spraying.
【００１１】［表１］ [Table 1]
【００１２】撹拌した混合吹付材料は、吹付システム中
の圧送ポンプによって法面の所定位置まで延長されてい
る吹付ホースの筒先まで送り出し、ホース筒先の吹付ノ
ズルにおいてコンプレッサから送気された圧縮空気とと
もに法面に所定厚さで吹き付ける（ステップ１５０）。The agitated mixed spray material is sent out to the tip of a spray hose that is extended to a predetermined position on the slope by a pressure pump in the spray system, and is compressed along with compressed air supplied from a compressor at a spray nozzle at the hose tip. A predetermined thickness is sprayed on the surface (step 150).
【００１３】上述の混合吹付材料の配合のうち、表土の
容積配合率として４０％未満では、十分な植生が形成さ
れず、８０％以上では吹付後の固相率が高くなりすぎる
場合がある。マサ土との置換は十分な量の表土が採取で
きない場合に表土容積の水増しとして行うことを基本と
する。置換率は、表土の容積配合率が４０％を下回らな
いように、４０％までとする。[0013] Of the above-mentioned mixed spraying materials, if the volume mixing ratio of the topsoil is less than 40%, sufficient vegetation is not formed, and if it is 80% or more, the solid fraction after spraying may be too high. Replacement with masa soil is basically carried out by inflating the topsoil volume when a sufficient amount of topsoil cannot be collected. The replacement ratio is up to 40% so that the volume mixing ratio of the topsoil does not fall below 40%.
【００１４】土壌改良材の使用材料として有機質系基盤
材を使用する場合にはバーク堆肥を主体とし、無機質系
基盤材を使用する場合にはパーライト等を用いるのが好
ましい。It is preferable to use bark compost as the main material when using an organic base material as the material used for the soil improving material, and to use pearlite or the like when using an inorganic base material.
【００１５】以上の法面の表土吹付緑化方法として、以
下の実施例においてその効果を確認した。The effect of the above-described sloped greening method on the slope was confirmed in the following examples.
【実施例】［施工場所、法面寸法］軟岩斜面に施工され
る、勾配が１：１．０（４５°）程度となる切土工にお
いて、本発明の法面の表土吹付方法を実施した。 ［施工手順］図１に示した施工フローに従って施工を進
めた。表土は樹林を伐採した区画から採取した。表土を
採取した樹林はアラカシなどが混生するコナラ二次林で
あり、表土はシルト分を多く含み、野外土性判定ではSi
Lと判定された。表土の採取はバックホウなどで行っ
た。埋土種子を確実に採取するために、表土をはぎ取る
厚みは１５cmに設定した。吹付工には公知の客土吹付工
用の施工機材（攪拌機、圧送ポンプ、吹付用資材）を用
いた。攪拌機に表土を投入する前に、表土を２０mmのふ
るい目のふるい機を通し、レキや根を除去する。他の材
料（生育基盤材、肥料、接合剤）および水を所定配合に
沿って、攪拌機に投入し、所定撹拌時間だけ材料の混合
を図る。この吹付材料は圧送ポンプによって吹付ホース
先端まで送り出され、ノズル位置において圧縮空気と混
合し、対象法面に所定吹付厚で吹き付ける。 ［植物生育に関する調査］ (1)法面の表土吹付緑化方法（本発明）と他工法（比較
例：客土吹付工、厚層客土吹付工、厚層基材吹付工）と
の植物生育の比較 法面の表土吹付緑化方法と同時期に他の緑化工法を施工
し、施工後４ヶ月程度（９〜１０月）の時点での植生調
査を行った。吹き付け時に、本発明では種子は配合され
ていないが、他工法（比較例）では５種類の草本（クリ
ーピングレッドフェスク、トールフェスク、ヨモギ、ス
スキ、メドハキ）および１種類の木本（ヤマハギ）の種
子が配合された。[Example] [Construction site and slope dimensions] The method for spraying the topsoil on the slope according to the present invention was carried out in a cut-off work constructed on a soft rock slope and having a gradient of about 1: 1.0 (45 °). [Construction procedure] Construction was performed according to the construction flow shown in FIG. The topsoil was collected from the plot where the forest was cut down. The forest from which the topsoil was collected is a secondary forest of Quercus serrata mixed with Alaska, etc.
L was determined. Topsoil was collected with a backhoe or the like. The thickness of the topsoil was set to 15 cm in order to reliably collect the buried seeds. For the spraying work, well-known construction equipment (agitator, pressure pump, material for spraying) for the soil spraying work was used. Before pouring the topsoil into the stirrer, the topsoil is passed through a 20 mm sieve to remove the roots and roots. Other materials (growth base material, fertilizer, bonding agent) and water are charged into a stirrer according to a predetermined mixture, and the materials are mixed for a predetermined stirring time. The spray material is sent to the tip of the spray hose by the pressure pump, mixed with the compressed air at the nozzle position, and sprayed on the target slope with a predetermined spray thickness. [Survey on Plant Growth] (1) Plant growth by the method of spraying topsoil on the slope (the present invention) and other methods (comparative examples: spraying of soil, thick soil, spraying thick base material) The other greening method was constructed at the same time as the topsoil spraying greening method on the slope, and a vegetation survey was conducted at about four months (September to October) after the construction. At the time of spraying, seeds are not blended in the present invention, but seeds of five kinds of herbs (creeping red fescue, tall fescue, mugwort, pampas grass, medohaki) and one kind of woody (yamahagi) are obtained by other methods (comparative examples). Was formulated.
【００１６】図２は施工対象の各区画ごとに、その区画
での出現種数（調査区画内に生育していた植物の種類
数）を工法別に示したグラフである。出現種数について
本発明と比較例とを比べると、本発明の方が出現種数が
多く、最高で３５種が確認された。比較例で出現した木
本種は播種されたヤマハギ１種であったのに対し、本発
明では最高で１１種であった。比較的多く出現した木本
種としては、クサギ、アカメガシワ、ヌルデ、コウゾ、
ネムノキ、アラカシ、ムラサキシキブ、ニガイチゴ、タ
ラノキなどが挙げられる。本発明によって多様な木本種
および草本種の生育する植生を創出できることが確認で
きた。このような多様な木本種の生育する植生を、人為
的な種子配合によって実現することは高コストであり、
その点、本発明の法面の表土吹付方法は低コストで同等
の効果が得られる。 (2)法面の表土吹付工仕様間の比較 表−２に異なる仕様の法面の表土吹付工での植被率およ
び木本成立本数（調査区画内に生育している木本の本
数。１m2当たりに換算。）を示す。FIG. 2 is a graph showing, for each section to be constructed, the number of species appearing in that section (the number of types of plants growing in the survey section) by construction method. Comparing the present invention with the comparative example regarding the number of appearing species, the present invention has a larger number of appearing species, and at most 35 species were confirmed. The number of woody species that appeared in the comparative example was one sown Yamahagi, whereas the present invention was up to 11 species. The woody species that have appeared relatively frequently include smelt, red pike, nurde, kozo,
Nemoki, Arakashi, Murasakikibu, Niigatago, Taranoki and the like. It has been confirmed that the present invention can create vegetation in which various woody and herbaceous species can grow. It is costly to realize such a variety of tree species growing vegetation by artificial seed mixing.
In that respect, the method for spraying topsoil on the slope according to the present invention can provide the same effect at low cost. (2) Comparison between specifications of topsoil spraying on slopes Table 2 shows the vegetation coverage and the number of established trees (number of trees growing in the survey area. 2 ).
【００１７】［表２］ [Table 2]
【００１８】表−２の結果を判断するに当たり、次のこ
とが言える。すなわち、吹付厚が３cm以上の場合、吹き
付けられた客土中の埋土種子が発芽可能な深さは表面か
ら２cm程度と考えられるので、吹き付けられた客土中の
発芽可能な埋土種子の量は基本的には表土の容積配合率
によって決定される。また、吹付厚が厚いほど客土の保
水性が高くなるので、個々の埋土種子の発芽・生育の可
否は客土の吹付厚によって影響される。In judging the results in Table 2, the following can be said. That is, when the spray thickness is 3 cm or more, the depth at which the buried seeds in the sprayed soil can germinate is considered to be about 2 cm from the surface. The amount is basically determined by the volume fraction of the topsoil. In addition, since the water retention of the soil increases as the spray thickness increases, the germination / growth of individual buried seeds is affected by the spray thickness of the soil.
【００１９】これを踏まえ、表−２を見ると、本発明の
法面の表土吹付緑化方法においては、吹付厚が３cmの場
合には、表土の容積配合率が４０％では植被率が５％と
非常に低い値となっており、十分な植生が形成されな
い。吹付厚が５cmの場合には、表土の容積配合率が４０
％では植被率２０％と、実用上支障はないが低めの値と
なる。これらのことから、十分な植生を形成させうる仕
様は、吹付厚が３cmの場合は表土の容積配合率８０％程
度、吹付厚が５cmの場合は表土の配合率４０％以上と考
えられる。なお、法面の表土吹付緑化方法の各区画は、
最低の区画では植被率が５％であったが、いずれの区画
でも客土（吹き付けられたもの）の流亡はわずかであっ
た。Based on this, Table 2 shows that, in the method for greening the topsoil on the slope according to the present invention, when the spray thickness is 3 cm, the vegetation coverage is 5% when the volumetric mixing ratio of the topsoil is 40%. Is very low, and sufficient vegetation is not formed. When the spray thickness is 5 cm, the volume ratio of the topsoil is 40
%, The planting rate is 20%, which is not a problem in practical use, but is a lower value. From these facts, it is considered that the specification that can form a sufficient vegetation is about 80% of the volume ratio of the topsoil when the spray thickness is 3 cm, and 40% or more when the spray thickness is 5 cm. In addition, each section of topsoil spraying greening method of slope,
In the lowest plot, the vegetation coverage was 5%, but in all plots the runoff of sprayed soil was slight.
【００２０】また、本発明の法面の表土吹付緑化方法に
おける吹付厚が３cm、５cmのそれぞれ２区画における植
被率および成立本数に関し、吹付厚が５cmの２区画は木
本成立本数が多く、また植被率が高すぎないため、将来
の樹林化が十分期待できると考えられる。Further, regarding the vegetation cover rate and the number of trees formed in each of the two sections having a spraying thickness of 3 cm and 5 cm in the method for greening the topsoil on the slope according to the present invention, the two sections having a spraying thickness of 5 cm have a large number of trees. Since the vegetation cover rate is not too high, it is considered that future forestation can be expected.
【００２１】[0021]
【発明の効果】以上に述べたように、上述の表土を配合
した客土を法面表面に吹き付けることにより、法面浸食
防止工として十分に機能するとともに、多様な木本種お
よび草本種が生育する植生が形成され、さらには多様な
木本種からなる樹林が形成されることが可能になると言
う効果を奏する。As described above, by spraying the soil containing the above-mentioned topsoil on the slope surface, it can sufficiently function as a slope erosion prevention work, and various woody and herbaceous species can be used. It has the effect that growing vegetation is formed, and furthermore, it is possible to form a forest consisting of various tree species.
【図１】本発明による法面の表土吹付緑化方法の一実施
の形態による施工フローを示したフローチャート。FIG. 1 is a flowchart showing a construction flow according to an embodiment of a method for greening a slope with a topsoil according to the present invention.
【図２】本発明および比較例において出現した植物種数
を示した比較図（施工後約４ヶ月，各３６ｍ2当り）FIG. 2 is a comparative diagram showing the number of plant species that have appeared in the present invention and comparative examples (approximately 4 months after construction, for each 36 m 2 )
───────────────────────────────────────────────────── フロントページの続き (72)発明者 青木 恭二 東京都千代田区三番町２番地 飛島建設株 式会社内 (72)発明者 村上 浩 東京都千代田区三番町２番地 飛島建設株 式会社内 (72)発明者 高橋 貢治 東京都千代田区三番町２番地 飛島建設株 式会社内 (72)発明者 戸上 澄雄 兵庫県神戸市東灘区田中町１丁目７番23号 株式会社東和工業内 (72)発明者 村主 博史 兵庫県神戸市東灘区田中町１丁目７番23号 株式会社東和工業内 Ｆターム(参考） 2B022 AB02 BA02 BB01 2D044 DA33 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kyoji Aoki 2nd Sanbancho, Chiyoda-ku, Tokyo Tobishima Construction Co., Ltd. (72) Inventor Hiroshi Murakami 2nd Sanbancho, Chiyoda-ku, Tokyo Tobishima Construction Co., Ltd. (72) Inventor Koji Takahashi 2 Tobanjima Construction Co., Ltd. 2 Sanbancho, Chiyoda-ku, Tokyo (72) Inventor Sumio Togami 1-23-23 Tanakacho, Higashinada-ku, Kobe City, Hyogo Prefecture Towa Kogyo Co., Ltd. (72) Inventor Hiroshi Murashimi 1-7-23 Tanakacho, Higashinada-ku, Kobe-shi, Hyogo F-term in Towa Kogyo Co., Ltd. (Reference) 2B022 AB02 BA02 BB01 2D044 DA33
Claims (4)
表層表土をふるい掛けして礫、残存根を除去した上、少
なくとも土壌改良材と、接合剤と撹拌混合し、該混合し
て得られた吹付材料を、対象吹付法面に所定吹付厚で吹
き付けるようにしたことを特徴とする法面の表土吹付緑
化方法。1. A surface soil having a predetermined thickness is stripped and collected, and the surface soil is sieved to remove gravels and residual roots, and then at least mixed with a soil improving material and a bonding agent. And spraying the sprayed material obtained as described above onto the target sprayed slope with a predetermined spraying thickness.
土を剥ぎ取り採取することを特徴とする請求項１に記載
の法面の表土吹付緑化方法。2. The method according to claim 1, wherein the topsoil within 30 cm from the surface layer is stripped and collected.
であることを特徴とする請求項１に記載の法面の表土吹
付緑化方法。3. The method according to claim 1, wherein the volume fraction of the topsoil is 40% or more.
とする請求項１記載の法面の表土吹付緑化方法。4. The method according to claim 1, wherein said spray thickness is 3 cm or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000361033A JP2002167763A (en) | 2000-11-28 | 2000-11-28 | Surface soil spraying greening method of slope face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000361033A JP2002167763A (en) | 2000-11-28 | 2000-11-28 | Surface soil spraying greening method of slope face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002167763A true JP2002167763A (en) | 2002-06-11 |
Family
ID=18832530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000361033A Pending JP2002167763A (en) | 2000-11-28 | 2000-11-28 | Surface soil spraying greening method of slope face |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002167763A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007185121A (en) * | 2006-01-12 | 2007-07-26 | Kumagai Gumi Co Ltd | Method for producing plant-growing base material using soil containing coarse fragment |
| JP2007198022A (en) * | 2006-01-27 | 2007-08-09 | Toko Corp | Adjusting method of growth base material and slope face seeding and planting construction method |
| JP2009082022A (en) * | 2007-09-28 | 2009-04-23 | Nisshoku Corp | Method for improving germination of soil seed, vegetation substrate, and greening method |
-
2000
- 2000-11-28 JP JP2000361033A patent/JP2002167763A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007185121A (en) * | 2006-01-12 | 2007-07-26 | Kumagai Gumi Co Ltd | Method for producing plant-growing base material using soil containing coarse fragment |
| JP2007198022A (en) * | 2006-01-27 | 2007-08-09 | Toko Corp | Adjusting method of growth base material and slope face seeding and planting construction method |
| JP2009082022A (en) * | 2007-09-28 | 2009-04-23 | Nisshoku Corp | Method for improving germination of soil seed, vegetation substrate, and greening method |
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