JP5065130B2 - Construction method of a mixture of long fiber, solidified material and soil - Google Patents

Construction method of a mixture of long fiber, solidified material and soil Download PDF

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JP5065130B2
JP5065130B2 JP2008093371A JP2008093371A JP5065130B2 JP 5065130 B2 JP5065130 B2 JP 5065130B2 JP 2008093371 A JP2008093371 A JP 2008093371A JP 2008093371 A JP2008093371 A JP 2008093371A JP 5065130 B2 JP5065130 B2 JP 5065130B2
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soil
mixture
long fiber
cement
fiber
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JP2009243225A (en
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貴樹 松丸
勝 舘山
謙一 小島
秀和 谷口
智一 伊勢
公安 大内
徳 高橋
幸彦 田村
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Railway Technical Research Institute
Kuraray Co Ltd
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Kuraray Co Ltd
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本発明は、のり面や壁面の強度・変形性能の向上を図るための長尺繊維・固化材・土の混合体の施工法に関するものである。ここで、固化材としては、セメント系、石灰系、セメント石灰系、石膏系の固化材を含む。   The present invention relates to a construction method of a mixture of long fiber, solidified material, and soil for improving strength and deformation performance of a slope surface and a wall surface. Here, the solidifying material includes cement based, lime based, cement lime based, and gypsum based solidified materials.

現在、環境保全や資源の有効活用が求められており、建設分野においては建設副産物の有効利用が望まれている。現地発生土の有効利用を視野に入れた長繊維（糸状で長尺状の繊維）混入補強土一体型緑化工法（ロービングウォール工法）は、砂・セメント・長繊維（ポリプロピレン）を混合した土をのり面や壁面にモルタル吹付機で吹付ける工法であり、のり面や壁面の強度・変形性能が高まるとともに、緑化が可能であり景観にも優れた工法である（下記非特許文献１参照）。   Currently, environmental conservation and effective use of resources are required, and in the construction field, effective use of construction by-products is desired. Reinforced soil-integrated greening method (roving wall method) mixed with long fibers (thread-like and long-shaped fibers) with a view to effective use of locally generated soil is a mixture of sand, cement and long fibers (polypropylene). It is a construction method that sprays on a slope or wall surface with a mortar sprayer. The strength and deformation performance of the slope surface and wall surface are enhanced, and it can be greened and is excellent in landscape (see Non-Patent Document 1 below).

図６は長繊維・セメント・土の混合体の施工を行う吹き付けフローを示す図、図７は従来の長繊維混合補強土一体型緑化工法の施工状態を示す図面代用写真、図８はそののり面へ施工された長繊維・セメント・土の混合体を示す図面代用写真、図９はその長繊維・セメント・土の混合体の吹き付け状態を示す図面代用写真である。
図６に示すように、砂１０１は骨材ホッパー１０２に供給され、骨材計量器１０３で計量された後、セメント１０４が加えられてモルタルが作られる。このモルタルは、モルタル吹付機１０５によって、給糸装置１０６から供給される長繊維と共にノズル１０７からのり面１０８に吹き付けられる。１０９は空気圧縮機であり、発電機１１０を備えており、圧縮空気がモルタル吹付機１０５と給糸装置１０６へと供給される。 6 is a diagram showing the spraying flow for constructing a mixture of long fiber, cement and soil, FIG. 7 is a drawing substitute photograph showing the construction state of a conventional long fiber mixed reinforced soil-integrated greening method, and FIG. 8 is the paste FIG. 9 is a drawing substitute photograph showing the sprayed state of the long fiber / cement / soil mixture applied to the surface, and FIG. 9 is a drawing substitute photograph showing the sprayed state of the long fiber / cement / earth mixture.
As shown in FIG. 6, sand 101 is supplied to an aggregate hopper 102, weighed by an aggregate meter 103, and then cement 104 is added to make mortar. The mortar is sprayed onto the slope 108 from the nozzle 107 together with the long fibers supplied from the yarn feeding device 106 by the mortar spraying machine 105. Reference numeral 109 denotes an air compressor, which includes a generator 110, and the compressed air is supplied to the mortar sprayer 105 and the yarn feeder 106.

図６〜図９に示されるように、モルタル吹付機１０５でセメント・土が混合されたモルタルは、給糸装置１０６により長繊維が加えられ、この長繊維・セメント・土の混合体１１１がのり面１０８に吹き付けられる。
「ロービングウォール工法」，長繊維緑化協会，２００４年１１月，５８１１．０２ＴＫｏ As shown in FIGS. 6 to 9, the mortar mixed with cement and soil by the mortar sprayer 105 is added with long fibers by the yarn feeding device 106, and the long fiber / cement / soil mixture 111 is glued. The surface 108 is sprayed.
"Roving Wall Method", Long Fibers Greening Association, November 2004, 581.102 TKo

図１０に示すように、長繊維混合補強土の最大強度（ピーク強度）はセメント添加量に応じて増加する。そのため必要とする強度に応じてセメント添加量が決まる。しかしながら、施工後に植生を行うことを考慮すると、植生可能な添加を上回るようなセメント添加（概ね土の単位体積１ｍ3 あたり３０ｋｇを上回るような量）を行うことは難しい。従って、植生を行う場合においては、ピーク強度の上限が存在することになる。 As shown in FIG. 10, the maximum strength (peak strength) of the long fiber mixed reinforced soil increases according to the amount of cement added. Therefore, the amount of cement added is determined according to the required strength. However, in consideration of vegetation after construction, it is difficult to add cement that exceeds the amount that can be vegetated (approximately 30 kg per 1 m 3 soil volume). Therefore, when vegetation is performed, there is an upper limit of peak intensity.

一方、図１０及び図１１に示すように、残留強度はセメント添加量に関わらず、繊維の混入量によって定まる。従って、繊維の混入量を増やすことで残留強度を増加させることができる。
しかしながら、従来長繊維として用いられているポリプロピレンは、耐アルカリ性に優れた材料であるが、セメントとの付着は困難な材料である。そこで、混入する長繊維として耐アルカリ性に優れたビニロンを用いれば、セメントとの付着が取れるという特徴が生かされるだけでなく、ポリプロピレンと比較して剛で繊度が大きいため、より強度や変形性能に優れた長繊維・セメント・土の混合体をつくることが期待できる。 On the other hand, as shown in FIGS. 10 and 11, the residual strength is determined by the amount of mixed fibers regardless of the amount of cement added. Therefore, the residual strength can be increased by increasing the amount of fibers mixed.
However, polypropylene conventionally used as long fibers is a material excellent in alkali resistance, but is difficult to adhere to cement. Therefore, if vinylon with excellent alkali resistance is used as the long fiber to be mixed, not only the feature of adhesion to cement is utilized, but also the strength and deformation performance are higher because it is stiffer and finer than polypropylene. It can be expected to produce an excellent mixture of long fiber, cement and soil.

ところが、ビニロンのような剛で繊度の大きな繊維を用いる場合には、繊維を添加しない供試体に比べて、ピーク強度が低下することがある（図１１参照）。これは、剛な繊維を混入する場合は繊維の分散性が悪く（図１２参照）、表１に示すように、供試体内の繊維の粗密によって全体の密度が低下するためである。   However, when using a rigid and high-fine fiber such as vinylon, the peak intensity may be lower than that of a specimen to which no fiber is added (see FIG. 11). This is because, when rigid fibers are mixed, the dispersibility of the fibers is poor (see FIG. 12), and as shown in Table 1, the overall density is reduced by the density of the fibers in the specimen.

一方、従来の長繊維混合補強土一体型緑化工法で用いられているポリプロピレンのように柔で繊度の小さい繊維は、分散性が良く、全体の密度が低下することはない。
特に、混合体をのり面工や壁面工へ適用することを考えると、ビニロンのような剛で繊度が大きな繊維の場合は、重さで下方に送られることが懸念され、なおさら分散性が悪くなることが懸念される。 On the other hand, soft and small fibers such as polypropylene used in the conventional long-fiber mixed reinforced soil-integrated greening method have good dispersibility and the overall density does not decrease.
In particular, considering the application of the mixture to slope and wall construction, in the case of a rigid and fine fiber such as vinylon, there is concern that it will be sent downward due to its weight, and the dispersibility is even worse. There is concern about becoming.

そこで、長繊維混入補強土の長繊維として剛で繊度が大きなビニロンを用いた場合、吹き付け時の分散性を確保するために、のり面や壁面に金網、鉄筋金網や合成樹脂製スリット材などを一種類または二種類以上組合わせた補強材を設置し、長繊維・セメント・土の混合体の混合ムラを解消し、また、その混合体を締固めることで強度や変形性能を向上させるようにした。   Therefore, when using vinylon that is rigid and has a large fineness as long fibers in the reinforcing soil mixed with long fibers, in order to ensure dispersibility during spraying, wire nets, reinforcing bar metal meshes, synthetic resin slit materials, etc. Install one or two or more kinds of reinforcing materials to eliminate mixing unevenness of the mixture of long fiber, cement, and soil, and improve the strength and deformation performance by compacting the mixture. did.

本発明は、上記状況に鑑みて、固化材の量を植生可能な範囲で増やしながら、大きなピーク強度を有する長繊維・固化材・土の混合体の施工法を提供することを目的とする。   In view of the above situation, an object of the present invention is to provide a construction method of a long fiber / solidifying material / soil mixture having a large peak strength while increasing the amount of the solidifying material within a vegetable range.

本発明は、上記目的を達成するために、
〔１〕長繊維・固化材・土の混合体の施工法において、長繊維・セメント系、石灰系、セメント石灰系、石膏系の固化材・土の混合体に含まれる固化材の量を植生可能な範囲とし、のり面や壁面への前記長繊維・固化材・土の混合体の吹き付け厚さごとに、持ち運び可能な締固め機により、前記長繊維・固化材・土の混合体の締固めを行う長繊維・固化材・土の混合体の施工法において、前記のり面や壁面に長繊維を絡める張出し部を形成し、前記張出し部には補強材を用い、前記長繊維は剛で繊度の大きい繊維であるビニロンを用い、前記補強材は、金網、鉄筋金網、エキスパンドメタルあるいは合成樹脂製スリット材を１種類又は２種類以上組み合わせた補強材であることを特徴とする。 In order to achieve the above object, the present invention provides
[1] In the long fiber / solidifying material / soil mixture construction method, the amount of solidifying material contained in the long fiber / cement-based, lime-based, cement-lime-based, gypsum-based solidifying material / soil mixture is vegetated. The long fiber / solidifying material / soil mixture can be tightened by a portable compactor for each thickness of spraying the long fiber / solidifying material / soil mixture onto the slope or wall. In the construction method of the mixture of long fiber, solidifying material, and soil to be hardened, an overhanging portion entangled with the long fiber is formed on the slope surface or wall surface, a reinforcing material is used for the overhanging portion, and the long fiber is rigid. Vinylon, which is a fiber having a high fineness, is used, and the reinforcing material is a reinforcing material in which one type or a combination of two or more types of slit materials made of a wire mesh, a reinforcing steel wire mesh, an expanded metal, or a synthetic resin is used .

本発明によれば、次のような効果を奏することができる。
（１）ピーク強度を増加させるためには、従来はセメント添加量を増加させることで対応していたが、本発明によれば、固化材の量を増やすことなく、十分な締固めを行うことで同等の強度を得ることができる。さらに、固化材の量を植生可能な範囲で増やし、締固めを行えば、従前よりも大きなピーク強度を有する混合体をつくることが可能となる。 According to the present invention, the following effects can be achieved.
(1) In order to increase the peak intensity, conventionally, it has been dealt with by increasing the amount of cement added. However, according to the present invention , sufficient compaction can be performed without increasing the amount of solidified material. The equivalent strength can be obtained. Furthermore, if the amount of the solidifying material is increased within a vegetable range and compacted, a mixture having a larger peak intensity than before can be produced.

（２）吹付けを行う際にのり面や壁面に張出し部を設けることで、長繊維が分散し、長繊維・固化材・土の混合体の混合ムラの低減を図ることができる。また、張出し部が混合体と一体となり剛性を有する構造体となるため、圧縮性や曲げ変形性能の向上を図ることができる。   (2) By providing an overhang portion on the slope or wall surface when spraying, the long fibers are dispersed, and the mixing unevenness of the mixture of the long fibers, the solidified material and the soil can be reduced. In addition, since the overhang portion is integrated with the mixture and has a rigid structure, the compressibility and the bending deformation performance can be improved.

本発明の長繊維・固化材・土の混合体の施工法は、長繊維・セメント系、石灰系、セメント石灰系、石膏系の固化材・土の混合体に含まれる固化材の量を植生可能な範囲とし、のり面や壁面への前記長繊維・固化材・土の混合体の吹き付け厚さごとに、持ち運び可能な締固め機により、前記長繊維・固化材・土の混合体の締固めを行う長繊維・固化材・土の混合体の施工法において、前記のり面や壁面に長繊維を絡める張出し部を形成し、前記張出し部には補強材を用い、前記長繊維は剛で繊度の大きい繊維であるビニロンを用い、前記補強材は、金網、鉄筋金網、エキスパンドメタルあるいは合成樹脂製スリット材を１種類又は２種類以上組み合わせた補強材である。 The construction method of the long fiber / solidifying material / soil mixture of the present invention is based on the amount of solidifying material contained in the long fiber / cement-based, lime-based, cement lime-based, gypsum-based solidifying material / soil mixture. The long fiber / solidifying material / soil mixture can be tightened by a portable compactor for each thickness of spraying the long fiber / solidifying material / soil mixture onto the slope or wall. In the construction method of the mixture of long fiber, solidifying material, and soil to be hardened, an overhanging portion entangled with the long fiber is formed on the slope surface or wall surface, a reinforcing material is used for the overhanging portion, and the long fiber is rigid. Vinylon, which is a fiber having a high fineness, is used, and the reinforcing material is a reinforcing material in which one type or a combination of two or more types of metal mesh, reinforcing bar metal mesh, expanded metal, or synthetic resin slit material .

以下、本発明の実施の形態について詳細に説明する。
図１は本発明にかかる長繊維・セメント・土の混合体の施工が行われた植生可能なのり面の模式図、図２は土へのセメント添加と締固めによる強度変化を示す図である。
図１において、１はのり面、２はそののり面１に施される排水材、３はその排水材２上に吹き付けられる長繊維・セメント・土の混合体からなる補強土、４はアンカーバー、５は植生が生育できる環境を提供する生育基盤（有機質系生育基盤）、６は植生した草本類主体である。 Hereinafter, embodiments of the present invention will be described in detail.
FIG. 1 is a schematic view of a vegetable slope surface on which a mixture of long fibers, cement, and soil according to the present invention is applied, and FIG. 2 is a diagram showing changes in strength due to cement addition to the soil and compaction.
In FIG. 1, 1 is a slope surface, 2 is a drainage material applied to the slope surface 1 , 3 is a reinforced soil made of a mixture of long fibers, cement, and soil sprayed on the drainage material 2, and 4 is an anchor bar. Reference numeral 5 denotes a growth base (organic growth base) that provides an environment in which vegetation can grow, and reference numeral 6 denotes a vegetated herbaceous body.

また、図２において、□はセメントなし（粒土調整砕石）、●はセメント改良礫土の締固め（密度）と強度の関係をそれぞれ示している。
図２に示されるように、土のピーク強度は、その密度によっても変化し、十分な締固め（密度を増大させること）を行うことでその強度が増大する。特に、セメントを添加した土は、締固めによる強度の増加がセメントを添加しない場合と比べて著しい。 In Fig. 2, □ indicates no cement (grained crushed stone), and ● indicates the relationship between compaction (density) and strength of cement-modified gravel.
As shown in FIG. 2, the peak strength of the soil also changes depending on the density, and the strength increases by performing sufficient compaction (increasing the density). In particular, in the soil added with cement, the increase in strength due to compaction is significant compared to the case where cement is not added.

一方、前述した表１に示すようにモルタル吹付機を用いて施工された長繊維・セメント・土の混合体（図９参照）は、その密度が１．６〜１．７ｇ／ｃｍ3 程度であるが、例えば、盛土の密度（一般に１．８〜２．０ｇ／ｃｍ3 ）と比較するとかなり小さな値である。従って、吹付けを行った長繊維・セメント・土の混合体を締固めることで密度増加を図ることができ、ピーク強度の増加につながる。 On the other hand, as shown in Table 1 above, the mixture of long fiber, cement and soil (see FIG. 9) constructed using a mortar sprayer has a density of about 1.6 to 1.7 g / cm 3 . However, for example, it is a considerably small value compared with the density of the embankment (generally 1.8 to 2.0 g / cm 3 ). Therefore, the density can be increased by compacting the mixture of long fiber, cement, and soil that has been sprayed, leading to an increase in peak strength.

この締固めは、例えば、図３に示すような振動コンパクタのような持ち運び可能な締固め機７を用いて、吹付けを行った長繊維・セメント・土の混合体の吹き付け厚さごとに行う。なお、締固め機７には転圧機を含む。
図４は本発明にかかる張出し部を設けたのり面や壁面の模式図であり、図４（ａ）は水平方向に階段状に張出し部を配置した例を、図４（ｂ）は垂直方向に斜面に沿って張出し部を配置した例を示している。図５は張出し部を設けたのり面や壁面に長繊維・セメント・土の混合体を吹き付けた状態を示す模式図である。 This compaction is performed for each spraying thickness of the sprayed mixture of long fiber, cement and soil using a portable compactor 7 such as a vibration compactor as shown in FIG. . The compacting machine 7 includes a compactor.
4A and 4B are schematic views of a slope surface and a wall surface provided with an overhang portion according to the present invention. FIG. 4A shows an example in which the overhang portions are arranged stepwise in the horizontal direction, and FIG. The example which has arrange | positioned the overhang | projection part along the slope is shown. FIG. 5 is a schematic view showing a state in which a mixture of long fibers, cement, and soil is sprayed on a slope surface or wall surface provided with an overhang portion.

ここで、張出し部としては、例えばのり面や壁面１１の水平方向に階段状に設けた張出し部としての金網１２や、垂直方向に斜面に沿って設けた張出し部としての金網１３を配置するようにしている。
このように構成することにより、図５（ａ）に示すように、長繊維・セメント・土の混合体１４を吹き付けた際、その長繊維は金網１２に絡まり分散する。その結果、長繊維・セメント・土の混合体の混合ムラがなくなり、繊維混合の粗密が改善される。図５（ｂ）においても同様に、長繊維・セメント・土の混合体１５の長繊維は金網１３に絡まり、その分散性が改善される。それにより長繊維・セメント・土の混合体の混合ムラがなくなり、繊維混合の粗密が改善される。 Here, as the overhanging portion, for example, a wire mesh 12 as an overhanging portion provided stepwise in the horizontal direction of the slope surface or the wall surface 11, or a wire mesh 13 as an overhanging portion provided along the slope in the vertical direction is arranged. I have to.
By configuring in this way, as shown in FIG. 5A, when the long fiber / cement / soil mixture 14 is sprayed, the long fibers are entangled and dispersed in the wire mesh 12. As a result, there is no uneven mixing of the mixture of long fiber, cement, and soil, and the density of fiber mixing is improved. Similarly in FIG. 5B, the long fibers of the long fiber / cement / soil mixture 15 are entangled with the wire mesh 13 and the dispersibility thereof is improved. This eliminates uneven mixing of the long fiber / cement / soil mixture and improves the density of the fiber mixture.

なお、ここでは、張出し部として金網１２，１３を示したが、長繊維の分散を図ることができるものであれば、金網に代わる鉄筋金網、エキスパンドメタルあるいは合成樹脂製スリット材を１種類又は２種類以上組み合わせた補強材であってもよい。
このように長繊維の分散性が改善されれば、その長繊維を含む混合体全体の混合ムラも低減されるものと考えられる。その方法として、のり面や壁面に対して、あらかじめ金網等の張出し部を設置すれば、モルタル吹付けの際に長繊維が張出し部に絡まり、長繊維の分散が促進され、混合体における長繊維混合の粗密が改善される。 Here, although the wire meshes 12 and 13 are shown as the overhanging portions, one type or two types of reinforcing steel wire mesh, expanded metal, or synthetic resin slit material can be used instead of the wire mesh, as long as long fibers can be dispersed. It may be a reinforcing material that is a combination of two or more types.
If the dispersibility of the long fibers is improved in this way, it is considered that mixing unevenness of the entire mixture including the long fibers is also reduced. As a method, if a stretched part such as a wire mesh is installed in advance on the slope surface or wall surface, long fibers are entangled with the stretched part when mortar is sprayed, and the dispersion of the long fibers is promoted. Mixing density is improved.

なお、上記実施例では、固化材として、セメント系の固化材について説明したが、石灰系、セメント石灰系、石膏系の固化材であってもよい。
なお、本発明は上記実施例に限定されるものではなく、本発明の趣旨に基づき種々の変形が可能であり、これらを本発明の範囲から排除するものではない。 In the above-described embodiment, the cement-based solidification material has been described as the solidification material. However, a lime-based, cement-lime-based, or gypsum-based solidification material may be used.
In addition, this invention is not limited to the said Example, Based on the meaning of this invention, a various deformation | transformation is possible and these are not excluded from the scope of the present invention.

本発明の長繊維・固化材・土の混合体の施工法は、植生が可能なのり面や壁面への定着度の高い長繊維・固化材・土の混合体の施工法として利用可能である。   The construction method of the long fiber / solidifying material / soil mixture of the present invention can be used as a construction method of the long fiber / solidifying material / soil mixture having a high degree of fixation on a slope surface or wall surface where vegetation is possible.

本発明にかかる長繊維・セメント・土の混合体の施工が行われた植生可能なのり面の模式図である。It is a schematic diagram of the vegetable slope where construction of the mixture of long fiber, cement and soil according to the present invention was performed. 土へのセメント添加と締固めによる強度変化を示す図である。It is a figure which shows the intensity | strength change by the cement addition to soil, and compaction. 本発明で用いる振動コンパクタのような持ち運び可能な締固め機を示す図である。It is a figure which shows the compaction machine which can be carried like the vibration compactor used by this invention. 本発明にかかる張出し部を設けたのり面や壁面の模式図である。It is a schematic diagram of the slope and wall surface which provided the overhang | projection part concerning this invention. 本発明にかかる張出し部を設けたのり面や壁面に長繊維・セメント・土の混合体を吹き付けた状態を示す模式図である。It is a schematic diagram which shows the state which sprayed the mixture of a long fiber, cement, and soil on the slope surface and wall surface which provided the overhang | projection part concerning this invention. 長繊維・セメント・土の混合体の施工を行う吹き付けフローを示す図である。It is a figure which shows the spraying flow which performs construction of the mixture of a long fiber, cement, and soil. 長繊維混入補強土一体型緑化工法の施工状態を示す図面代用写真である。It is a drawing substitute photograph which shows the construction state of the long fiber mixing reinforced soil integrated type greening method. のり面へ施工された長繊維・セメント・土の混合体を示す図面代用写真である。It is a drawing substitute photograph which shows the mixture of the long fiber, cement, and soil constructed on the slope. 長繊維・セメント・土の混合体の吹き付け状態を示す図面代用写真である。It is a drawing substitute photograph which shows the spraying state of the mixture of a long fiber, cement, and soil. セメント添加量を変えた長繊維・セメント・土の混合体の応力−ひずみ関係を示す図である。It is a figure which shows the stress-strain relationship of the mixture of the long fiber, cement, and soil which changed the cement addition amount. 長繊維の混入量とピーク強度・残留強度の関係を示す図である。It is a figure which shows the relationship between the amount of long fibers mixed, peak intensity, and residual strength. 混合ムラの発生している施工された長繊維・セメント・土の混合体の例を示す図面代用写真である。It is a drawing-substituting photograph showing an example of a construction of a mixed long fiber / cement / soil in which mixing unevenness occurs.

１ のり面
２ 排水材
３ 長繊維・セメント・土の混合体からなる補強土
４ アンカーバー
５ 有機質系生育基盤
６ 植生した草本類主体
７ 持ち運び可能な締固め機
１１ のり面や壁面
１２，１３ 金網
１４，１５ 長繊維・セメント・土の混合体 DESCRIPTION OF SYMBOLS 1 Slope 2 Drainage material 3 Reinforced soil made of a mixture of long fiber, cement, and soil 4 Anchor bar 5 Organic growth base 6 Vegetative herbaceous material 7 Portable compaction machine 11 Slope and wall 12, 13 Wire mesh 14,15 Mixture of long fiber, cement and soil

Claims (1)

長繊維・セメント系、石灰系、セメント石灰系、石膏系の固化材・土の混合体に含まれる固化材の量を植生可能な範囲とし、のり面や壁面への前記長繊維・固化材・土の混合体の吹き付け厚さごとに、持ち運び可能な締固め機により、前記長繊維・固化材・土の混合体の締固めを行う長繊維・固化材・土の混合体の施工法において、前記のり面や壁面に長繊維を絡める張出し部を形成し、前記張出し部には補強材を用い、前記長繊維は剛で繊度の大きい繊維であるビニロンを用い、前記補強材は、金網、鉄筋金網、エキスパンドメタルあるいは合成樹脂製スリット材を１種類又は２種類以上組み合わせた補強材であることを特徴とする長繊維・固化材・土の混合体の施工法。 The amount of solidified material contained in the mixture of solidified fiber and soil of long fiber, cement, lime, cement lime, and gypsum is vegetable, and the long fiber, solidified material, In the construction method of the long fiber / solidifying material / soil mixture for compacting the long fiber / solidifying material / soil mixture by a portable compaction machine for each spray thickness of the soil mixture, A stretched portion entangled with long fibers is formed on the slope or wall surface, a reinforcing material is used for the stretched portion, and the long fiber is made of vinylon which is a rigid and fine fiber, and the reinforcing material is a wire mesh, a reinforcing bar A construction method of a mixture of long fiber, solidified material and soil, characterized by being a reinforcing material obtained by combining one type or two or more types of slitting materials made of wire mesh, expanded metal or synthetic resin .
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