JP5562730B2 - Method for connecting a plurality of blocks of a honeycomb-shaped three-dimensional solid cell structure - Google Patents
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Description
本発明は、作業が簡単であり、強度があり、かつ美観に優れるハニカム状３次元立体セル構造体の複数のブロック同士の連結方法、及び該連結方法を用いた盛土壁面の構築工法に関する。 The present invention relates to a method for connecting a plurality of blocks of a honeycomb-shaped three-dimensional three-dimensional cell structure that is easy to work, has strength, and is excellent in aesthetics, and a method for constructing an embankment wall surface using the connecting method.
従来、土木建築等の分野では、道路の路盤材、歩道の基礎材、仮設道路や擁壁等の土木用途の地盤補強材として、重荷重の支持や浸食防止等のために、以下の特許文献１、２に開示されるような、ハニカム状３次元立体セル構造体が一般に使用されている。
かかるセル構造体は、図１に示すように、幅方向Ｈに並設された複数の長辺状の樹脂又は繊維シートを互いに所定の間隔で繰り返し部分的に接合され、その幅方向と直行する方向に展張した時、該シートにより囲まれたハニカム状のセルが多数形成されるように、構成されている。
Conventionally, in the field of civil engineering and construction, the following patent documents are used to support heavy loads and prevent erosion as ground reinforcement materials for road roadbed materials, sidewalk foundation materials, temporary roads and retaining walls, etc. A honeycomb-shaped three-dimensional cell structure as disclosed in 1 and 2 is generally used.
As shown in FIG. 1, such a cell structure has a plurality of long-sided resins or fiber sheets arranged in parallel in the width direction H, and is partially bonded to each other at a predetermined interval, and is orthogonal to the width direction. When stretched in the direction, a large number of honeycomb-shaped cells surrounded by the sheet are formed.
このようなハニカム状３次元立体セル構造体は、前記したセル構造により、軽量で、強度が優れるという特徴がある。かかるハニカム状３次元セル構造体は、通常、一定の大きさのブロックとして、折り畳まれた状態で、敷設現場に運ばれ、現場で展張して、使用される。そして、一般には、図２に示すように、略平面の地表面に複数のブロックとして敷設され、各ブロックを互いに連結し、ハニカム状の各セル内に、土砂、砕石、コンクリート等の充填材を充填して、地盤補強材としての機能が発揮される。 Such a honeycomb-shaped three-dimensional three-dimensional cell structure is characterized by being light in weight and excellent in strength due to the cell structure described above. Such a honeycomb-shaped three-dimensional cell structure is usually transported to a laying site in a folded state as a block having a certain size, and is used after being expanded on the site. In general, as shown in FIG. 2, a plurality of blocks are laid on a substantially flat ground surface, the blocks are connected to each other, and fillers such as earth and sand, crushed stone, and concrete are placed in each honeycomb cell. Fills and functions as a ground reinforcement.
従来、敷設された複数のブロックの連結は、以下の方法のいずれかにより行われてきた。
（１）図３に示すように、地表面上で展張され、方向を揃えて敷設された、隣接するブロックの最外側のストリップ２ａ同士を、Ｕ字クギ・ステイプラー等で、上から挟むようにして、連結する。ここで、使用するＵ字クギステイプラーの垂直方法の長さは、セルを構成するシートの垂直方法の長さよりも短いものである（以下の特許文献３の図７参照）。また、かかる連結方法は、連結部材や固定部材、さらにはそのための工具が煩雑にある上、施工が煩雑になるとう問題があり、連結強度が安定しないという問題もある（特許文献３の段落０００６参照）。
Conventionally, a plurality of installed blocks have been connected by one of the following methods.
(1) As shown in FIG. 3, the outermost strips 2a of adjacent blocks, which are spread on the ground surface and laid in the same direction, are sandwiched from above with a U-shaped nail, stapler, etc. Link. Here, the length of the vertical method of the U-shaped wedge stapler to be used is shorter than the length of the vertical method of the sheet constituting the cell (see FIG. 7 of Patent Document 3 below). In addition, such a connecting method has a problem that the connecting member, the fixing member, and the tool therefor are complicated, the construction is complicated, and the connection strength is not stable (paragraph 0006 of Patent Document 3). reference).
（２）図４に示すように、空気工具であるエアーステイプラーを使用して金属ステープルによって、ホチキス状に、隣接するストリップを挟して、連結する（以下の特許文献４の図７参照）。空気工具であるエアーステイプラーを使用するためには、発電機及びエアーコンプレッサーが必要である。また、金属ステープルによる固定では、ヨコ方向に対する強度は十分であるが、前後の引っ張りに対する強度が不足する。また、金属ステープルは、一般には、鉄製であり、部材も細いため、経年使用により鉄錆が発生し、強度が低下するとともに、美観を損なうという欠点がある。特に、盛土壁面の最外側に金属ステープルを使用した場合には、経年使用により錆が発生して、壁面の美観を著しく損なう場合がある。 (2) As shown in FIG. 4, the adjacent staples are sandwiched and connected in a staple form by metal staples using an air stapler that is a pneumatic tool (see FIG. 7 of Patent Document 4 below). In order to use an air stapler that is a pneumatic tool, a generator and an air compressor are required. In addition, the fixing with the metal staple is sufficient in the horizontal direction, but the strength against the front and rear pulling is insufficient. In addition, since metal staples are generally made of iron and the members are thin, iron rust is generated due to use over time, the strength is lowered, and the aesthetic appearance is impaired. In particular, when metal staples are used on the outermost side of the embankment wall surface, rust may occur due to use over time, and the appearance of the wall surface may be significantly impaired.
（３）図５に示すように、ハニカム状３次元立体セル構造体を構成するシートとして高密度ポリエチレン製の合成樹脂を使用し、ステンレス製のタッピングビスを、穴を穿設することなく、直接捻じ込んで、強固に固定して、ブロック同士を連結する（以下、特許文献４の図５、図６参照）。かかる連結方法は、（２）に前記した方法の欠点を回避するために考案された方法であり、作業が著しく迅速化される効果と、ステンレス製のタッピングビスを使用しているため、錆に抵抗すると共に、長期間に亘って確実に強度を持った固定ができるという効果があるとされる（特許文献４段落０００５参照）。特許文献４には、タッピングビスを用いた方法は、作業が著しく迅速化される効果を奏すると記載されているが、タッピングビスを捻じ込むためには、固定されるべき合成樹脂シートを仮留めして、電動ドライバー等を利用して行うことが通常であり、このような作業は煩雑の域を出ないものといえる。また、タッピングビスによるネジ止めの強度を確保するためには、使用するシートの材質等が制限される場合がある。 (3) As shown in FIG. 5, a high-density polyethylene synthetic resin is used as a sheet constituting the honeycomb-shaped three-dimensional three-dimensional cell structure, and a stainless tapping screw is directly connected without drilling a hole. The blocks are screwed and firmly fixed to connect the blocks (refer to FIGS. 5 and 6 of Patent Document 4 below). Such a connection method is a method devised to avoid the disadvantages of the above-described method in (2), and the effect of remarkably speeding up the work and the use of a stainless tapping screw make it rusting. It is said that there is an effect that resistance can be secured and the fixing with strength can be surely performed over a long period of time (see Patent Document 4, paragraph 0005). Patent Document 4 describes that the method using a tapping screw has the effect of significantly speeding up the work. However, in order to twist the tapping screw, a synthetic resin sheet to be fixed is temporarily fixed. Thus, it is usual to use an electric screwdriver or the like, and it can be said that such work does not leave a complicated area. Further, in order to secure the strength of screwing with a tapping screw, the material of the sheet to be used may be limited.
（４）図６に示すように、（１）に前記した方法の欠点を回避するために、図６に示すようなプラスチックパネルの最外側のストリップの側面に、所定の間隔を隔ててプラスチックパネルを地表面に固定するための固定部材、例えば、針状のスパイクを一体的にも設け、さらに該プラスチックパネルの最外側のストリップの側面に、隣接するプラスチックパネル相互を連結するための連結部材を設けた地盤安定材が、以下の特許文献３に提案されている（特許文献３の請求項１、４、図３、４参照）。しかしながら、針状のスパイクと連結部材を再外側のストリップと一体として設けた構造は複雑であり、費用も高くなる。また、所定の位置でしか連結できないという欠点もある。 (4) As shown in FIG. 6, in order to avoid the disadvantages of the method described in (1), the plastic panel is spaced apart from the side of the outermost strip of the plastic panel as shown in FIG. A fixing member for fixing the plastic panel to the ground surface, for example, a needle-like spike is also provided integrally, and a connecting member for connecting adjacent plastic panels to the side surface of the outermost strip of the plastic panel. The provided ground stabilization material is proposed in the following Patent Document 3 (see Claims 1 and 4 and FIGS. 3 and 4 of Patent Document 3). However, the structure in which the needle-like spike and the connecting member are provided integrally with the outer strip is complicated and expensive. In addition, there is a drawback that the connection can be made only at a predetermined position.
本発明が解決しようとする課題は、作業が簡単であり、強度があり、かつ美観に優れるハニカム状３次元立体セル構造体の複数のブロック同士の連結方法、及び該連結方法を用いた盛土壁面の構築工法を提供することである。 The problem to be solved by the present invention is a method of connecting a plurality of blocks of a honeycomb-shaped three-dimensional three-dimensional cell structure that is easy to work, has strength, and is excellent in aesthetics, and a bank wall surface using the connection method Is to provide a construction method.
発明者らは、鋭意検討し、実験を重ねた結果、ステープラ、タッピングビス、複雑な構造の連結部材に代えて、ジオセルを構成する樹脂又は繊維シートを、挟みこむように、該樹脂又は繊維シートの垂直方向の長さよりも大きい長さの略Ｕ字形状の棒状ピンを、上方から垂直方法に、挿入して、隣接するブロック同士を連結することにより、前記課題を解決しうることを見出し、本発明を完成するに至った。
すなわち、本発明は以下のとおりのものである。
As a result of intensive studies and experiments, the inventors have replaced the stapler, the tapping screw, and the connecting member having a complicated structure with the resin or the fiber sheet constituting the geocell so as to sandwich the resin or the fiber sheet. It is found that the above-mentioned problem can be solved by inserting a substantially U-shaped rod-shaped pin having a length larger than the length in the vertical direction from above in a vertical manner and connecting adjacent blocks. The invention has been completed.
That is, the present invention is as follows.
［１］幅方向に並設された複数の長辺状の樹脂又は繊維シートを互い所定の間隔で繰り返し部分的に接合し、これを前記幅方向と直交する方向に展張することによってハニカム状のセルを形成するハニカム状３次元立体セル構造体の複数のブロックを互いに連結する方法であって、以下のステップ：
隣接する前記各ブロックの端部を構成し互いに接触する前記各セルの樹脂又は繊維シートを、挟みこむように、前記樹脂又は繊維シートの垂直方向の長さよりも大きい長さの略Ｕ字形状の棒状ピンを、上方から垂直方向に、挿入して、前記隣接するブロック同士を連結する、
を含む前記連結方法。
[1] A plurality of long-sided resin or fiber sheets arranged side by side in the width direction are partially bonded to each other at predetermined intervals, and then stretched in a direction perpendicular to the width direction to form a honeycomb-like shape. A method of connecting a plurality of blocks of a honeycomb-shaped three-dimensional cell structure forming a cell to each other, the following steps:
A substantially U-shaped rod having a length larger than the length in the vertical direction of the resin or fiber sheet so as to sandwich the resin or fiber sheet of each cell constituting the end of each adjacent block and contacting each other. A pin is inserted vertically from above to connect the adjacent blocks together.
The said connection method containing.
［２］前記略Ｕ字形状の棒状ピンが、直径４ｍｍ以上のステンレス鋼から作られる、前記［１］に記載の連結方法。 [2] The connection method according to [1], wherein the substantially U-shaped rod-shaped pin is made of stainless steel having a diameter of 4 mm or more.
［３］盛土壁面の構築工法であって、以下のステップ：
（１）略水平面上に、幅方向に並設された複数の長辺状の樹脂又は繊維シートを互い所定の間隔で繰り返し部分的に接合し、これを前記幅方向と直交する方向に展張することによってハニカム状のセルを形成するハニカム状３次元立体セル構造体の複数のブロックを、隣接して、設置し、
（２）隣接する前記各ブロックの端部を構成し互いに接触する前記各セルの樹脂又は繊維シートを、挟みこむように、前記樹脂又は繊維シートの垂直方向の長さよりも大きい長さの略Ｕ字形状の棒状ピンを、上方から垂直方向に、挿入して、前記隣接するブロック同士を連結し、
（３）前記各セルの内部に、砕石、砂、現地発生土を含む充填材を充填し、
（４）前記ステップ（１）〜（３）を繰り返して、壁面を構築する、
を含む前記盛土壁面の構築工法。
[3] Construction method for embankment wall surface, the following steps:
(1) On a substantially horizontal plane, a plurality of long-sided resins or fiber sheets arranged in parallel in the width direction are partially joined repeatedly at a predetermined interval, and are spread in a direction perpendicular to the width direction. A plurality of blocks of the honeycomb-shaped three-dimensional three-dimensional cell structure forming the honeycomb-shaped cells are installed adjacent to each other,
(2) A substantially U-shape having a length larger than the length in the vertical direction of the resin or fiber sheet so as to sandwich the resin or fiber sheet of each cell constituting the end of each adjacent block and contacting each other. Insert the rod-shaped pin in the vertical direction from above, connect the adjacent blocks,
(3) The inside of each cell is filled with a filler containing crushed stone, sand and locally generated soil,
(4) Repeat steps (1) to (3) to construct a wall surface.
The construction method of the said embankment wall surface containing.
［４］前記略Ｕ字形状の棒状ピンが、直径４ｍｍ以上のステンレス鋼から作られる、前記［３］に記載の盛土壁面の構築工法。 [4] The embankment wall surface construction method according to [3], wherein the substantially U-shaped rod-shaped pin is made of stainless steel having a diameter of 4 mm or more.
［５］前記ステップ（３）に先立って、セルの形状を保持するため拘束治具とともに、壁面を構成する最外側の樹脂又は繊維シートを仮留めするために、前記略Ｕ字形状の棒状ピンを使用する、前記［３］又は［４］に記載の盛土壁面の構築工法。 [5] Prior to the step (3), in order to temporarily fix the outermost resin or fiber sheet constituting the wall surface together with a restraining jig for maintaining the shape of the cell, the substantially U-shaped rod-shaped pin The embankment wall surface construction method according to the above [3] or [4].
［６］前記［３］〜［５］のいずれかに記載の建築工法により製造された盛土壁面。 [6] A bank wall surface produced by the construction method according to any one of [3] to [5].
本発明に係る連結方法においては、略Ｕ字形状の棒状ピンを、隣接セルを構成するシートを挟むように通すことにより連結するので、人力だけによる取付・固定が可能であり、ステープラやタッピングビス等の固定のために使用する発電機やエアコンプレッサー、電動ドリル等の複雑な装置や設備を必要とせず、また、略Ｕ字形状の棒状ピンの構造は単純であるので、ストリップ（シート）自体を複雑な構造にする必要もない。
盛土壁面の構築に使用するとき、取付け後の略Ｕ字形状の棒状ピンは、壁面外部からほとんど見えないので、仮に略Ｕ字形状の棒状ピンに錆が発生したとしても、ステープラーを使用した場合に発生する錆に起因する美観を損なうという問題がそもそも生じない。
In the connection method according to the present invention, the substantially U-shaped pin is connected by passing the sheet constituting the adjacent cell so that it can be attached and fixed by only human power. No complicated equipment or facilities such as generators, air compressors, electric drills, etc. are used for fixing etc., and the structure of the substantially U-shaped rod-shaped pin is simple, so the strip (sheet) itself There is no need for a complicated structure.
When used for construction of embankment wall surface, since the substantially U-shaped rod-shaped pin after installation is hardly visible from the outside of the wall surface, even if rust occurs on the approximately U-shaped rod-shaped pin, if the stapler is used In the first place, the problem of detracting from the aesthetics caused by the rust generated in the film does not occur.
略Ｕ字形状の棒状ピンの材質として、直径４ｍｍ以上のステンレス鋼を使用すれば、経年による腐食による強度低下の虞れがないが、一方、金属ステープラーを使用した場合には、錆による強度低下の問題がある。
敷設するハニカム状３次元立体セル構造体を構成する樹脂又は繊維シートの垂直方向の長さよりも大きい長さの略Ｕ字形状の棒状ピンを使用するので、セル構造体を積層する場合には、連結するセル構造体層の真下のセル内の充填材が該層から突き出した棒状ピンの下部を拘束する。かかる拘束により、該シートの垂直方向の長さよりも小さい長さのＵ字構造体、例えば、Ｕ字クギ・ステイプラー等で、上から挟むように連結する場合に比較して、連結部の強度が高くなる。
略Ｕ字形状の棒状ピンは、セルの内部に、砕石、砂、現地発生土を含む充填材を充填するに先立って、セルの形状を保持するため拘束治具とともに、壁面を構成する最外側の樹脂又は繊維シートを仮留めするためにも使用することができる。
If stainless steel with a diameter of 4 mm or more is used as the material of the substantially U-shaped rod-shaped pin, there is no risk of strength reduction due to corrosion over time, but if a metal stapler is used, strength reduction due to rust. There is a problem.
Since a substantially U-shaped rod-shaped pin having a length larger than the vertical length of the resin or fiber sheet constituting the honeycomb-shaped three-dimensional three-dimensional cell structure to be laid is used, when stacking the cell structure, The filler in the cell immediately below the cell structure layer to be connected restrains the lower portion of the rod-shaped pin protruding from the layer. Due to such restraint, the strength of the connecting portion is lower than that in the case of connecting with a U-shaped structure having a length smaller than the vertical length of the sheet, for example, a U-shaped nail, stapler, etc., sandwiched from above. Get higher.
The U-shaped rod-shaped pin is the outermost part that constitutes the wall surface together with a restraining jig to maintain the shape of the cell prior to filling the cell with a filler containing crushed stone, sand and locally generated soil. It can also be used to temporarily fix the resin or fiber sheet.
以下、本発明を詳細に説明する。
本発明は、幅方向に並設された複数の長辺状の樹脂又は繊維シートを互い所定の間隔で繰り返し部分的に接合し、これを前記幅方向と直交する方向に展張することによってハニカム状のセルを形成するハニカム状３次元立体セル構造体の複数のブロックを互いに連結する方法であって、以下のステップ：
隣接する前記各ブロックの端部を構成し互いに接触する前記各セルの樹脂又は繊維シートを、挟みこむように、前記樹脂又は繊維シートの垂直方向の長さよりも大きい長さの略Ｕ字形状の棒状ピンを、上方から垂直方向に、挿入して、前記隣接するブロック同士を連結する、
を含む前記連結方法に関する。
Hereinafter, the present invention will be described in detail.
In the present invention, a plurality of long-sided resins or fiber sheets arranged side by side in the width direction are partially joined repeatedly at predetermined intervals, and then expanded in a direction orthogonal to the width direction. A method for connecting a plurality of blocks of a honeycomb-shaped three-dimensional three-dimensional cell structure forming a cell of the following, comprising the following steps:
A substantially U-shaped rod having a length larger than the length in the vertical direction of the resin or fiber sheet so as to sandwich the resin or fiber sheet of each cell constituting the end of each adjacent block and contacting each other. A pin is inserted vertically from above to connect the adjacent blocks together.
It is related with the said connection method containing.
幅方向に並設された複数の長辺状の樹脂又は繊維シートを互い所定の間隔で繰り返し部分的に接合し、これを前記幅方向と直交する方向に展張することによってハニカム状のセルを形成するハニカム状３次元立体セル構造体とは、一般に、土木建築等の分野で、道路の路盤材、歩道の基礎材、仮設道路や擁壁等の土木用途の地盤補強材として、重荷重の支持や浸食防止等のために使用されている特許文献１、２に開示されるような、ハニカム状３次元立体セル構造体であることができるが、これに限定されるものではない。 A plurality of long-sided resin or fiber sheets arranged in parallel in the width direction are partially joined repeatedly at predetermined intervals, and this is stretched in a direction perpendicular to the width direction to form a honeycomb-like cell. The honeycomb-shaped three-dimensional cell structure is generally used in the field of civil engineering and construction as a ground reinforcement material for civil engineering applications such as road base materials, sidewalk foundation materials, temporary roads and retaining walls. Although it can be a honeycomb-shaped three-dimensional three-dimensional cell structure as disclosed in Patent Documents 1 and 2, which are used for preventing erosion and the like, it is not limited to this.
かかるセル構造体は、一般には、ブロック毎に、折り畳んで現場に搬入され、施工地表面上で展張され、ブロック同士を連結し、形成された各セルに砕石、土壌等の充填材を充填され、場合により積層されて盛土壁面等が構築される。本発明の第一の態様は、セル構造体の複数のブロックの連結方法に関する。 Such a cell structure is generally folded into each block, carried to the site, spread on the surface of the construction site, connected to each other, and each formed cell is filled with a filler such as crushed stone or soil. In some cases, a bank wall or the like is constructed by laminating. A first aspect of the present invention relates to a method for connecting a plurality of blocks of a cell structure.
図９に示すように、本発明においては、セル構造体の隣接するブロックの連結は、隣接する各ブロックの端部を構成し互いに接触する各セルの樹脂又は繊維シートを、挟みこむように、樹脂又は繊維シートの垂直方向の長さよりも大きい長さの略Ｕ字形状の棒状ピンを、上方から垂直方向に、挿入することにより行われる。隣接するブロックの連結は、複数の長辺状の樹脂又は繊維シートの幅方向に配置されることも、幅方向と直行する方向に配置されることもできる。図９には、幅方向に隣接する２つのブロックの向かい合うセルにより形成される凹凸が互いに嵌合するように各ブロックが展張され、凹凸を形成するセルを構成するセルの樹脂又は繊維シートを、挟みこむように、略Ｕ字形状の棒状ピンが、上方から垂直方向に、挿入される様子を示している。 As shown in FIG. 9, in the present invention, the connection of adjacent blocks of the cell structure is made by sandwiching the resin or fiber sheet of each cell that constitutes the end of each adjacent block and contacts each other. Alternatively, it is performed by inserting a substantially U-shaped rod-shaped pin having a length larger than the vertical length of the fiber sheet from above in the vertical direction. The connection of adjacent blocks can be arranged in the width direction of a plurality of long-sided resins or fiber sheets, or can be arranged in a direction perpendicular to the width direction. In FIG. 9, each block is stretched so that the concavities and convexities formed by the facing cells of the two blocks adjacent in the width direction are fitted to each other, and the resin or fiber sheet of the cell constituting the concavity and convexity cell, It shows a state in which a substantially U-shaped rod-shaped pin is inserted vertically from above so as to be sandwiched.
図１０は、上記連結に際し、略Ｕ字形状の棒状ピンを、上方から垂直方向に挿入する様子を示す写真である。 FIG. 10 is a photograph showing a state in which a substantially U-shaped rod-shaped pin is inserted in the vertical direction from above upon the connection.
図１１と図１２に、本発明に係る連結方法及び盛土壁面の構築工法に使用する略Ｕ字形状の棒状ピンの写真を示す。略Ｕ字形状の棒状ピンの材質は、強度が高いものであれば問わないが、好ましくは、直径４ｍｍ以上のステンレス鋼であることができる。なお、図１０及び図１３に示すように、盛土壁面の最外側の連結に使用された該棒状ピンは、充填材が充填された後には、そのヘアピンカーブ部のみが外部に露出することになるので、経年使用により錆が発生したとしても、美観が問題となる虞はない。 FIG. 11 and FIG. 12 show photographs of a substantially U-shaped rod-shaped pin used in the connection method and the embankment wall construction method according to the present invention. The material of the substantially U-shaped rod-shaped pin is not particularly limited as long as it has high strength, but it can be preferably stainless steel having a diameter of 4 mm or more. In addition, as shown in FIG.10 and FIG.13, after this rod-shaped pin used for outermost connection of the embankment wall surface is filled with a filler, only the hairpin curve part will be exposed outside. Therefore, even if rust occurs due to use over time, there is no possibility that aesthetics will be a problem.
該棒状ピンの間隙は、セル構造体の２枚の樹脂又は繊維シートを挟みこむために適したものである必要がある。間隙があまりに小さいと、人力による取り付けに過度の力を要し、一方、間隙があまりに大きいと、挟み込む２枚の樹脂シート又は繊維シートの拘束が弱くなり、ブロック間の固定にずれが生じるため、好ましくない。このように、該棒状ピンの間隙は、セル構造体を構成する樹脂又は繊維シートの厚みに依存するが、好ましくは、２〜５０ｍｍである。 The gap between the rod-shaped pins needs to be suitable for sandwiching the two resin or fiber sheets of the cell structure. If the gap is too small, an excessive force is required for attachment by human power, while if the gap is too large, the restraint between the two resin sheets or fiber sheets to be sandwiched becomes weak, and the fixing between the blocks is displaced. It is not preferable. Thus, although the gap | interval of this rod-shaped pin is dependent on the thickness of resin or a fiber sheet which comprises a cell structure, Preferably it is 2-50 mm.
本発明は、盛土壁面の構築工法であって、以下のステップ：
（１）略水平面上に、幅方向に並設された複数の長辺状の樹脂又は繊維シートを互い所定の間隔で繰り返し部分的に接合し、これを前記幅方向と直交する方向に展張することによってハニカム状のセルを形成するハニカム状３次元立体セル構造体の複数のブロックを、隣接して、設置し、
（２）隣接する前記各ブロックの端部を構成し互いに接触する前記各セルの樹脂又は繊維シートを、挟みこむように、前記樹脂又は繊維シートの垂直方向の長さよりも大きい長さの略Ｕ字形状の棒状ピンを、上方から垂直方向に、挿入して、前記隣接するブロック同士を連結し、
（３）前記各セルの内部に、砕石、砂、現地発生土を含む充填材を充填し、
（４）前記ステップ（１）〜（３）を繰り返して、壁面を構築する、
を含む前記盛土壁面の構築工法にも関する。
The present invention is a method for constructing an embankment wall surface, and includes the following steps:
(1) On a substantially horizontal plane, a plurality of long-sided resins or fiber sheets arranged in parallel in the width direction are partially joined repeatedly at a predetermined interval, and are spread in a direction perpendicular to the width direction. A plurality of blocks of the honeycomb-shaped three-dimensional three-dimensional cell structure forming the honeycomb-shaped cells are installed adjacent to each other,
(2) A substantially U-shape having a length larger than the length in the vertical direction of the resin or fiber sheet so as to sandwich the resin or fiber sheet of each cell constituting the end of each adjacent block and contacting each other. Insert the rod-shaped pin in the vertical direction from above, connect the adjacent blocks,
(3) The inside of each cell is filled with a filler containing crushed stone, sand and locally generated soil,
(4) Repeat steps (1) to (3) to construct a wall surface.
It also relates to the construction method of the above-mentioned embankment wall surface.
図１４に、上記盛土壁面の構築方法により構築された壁面の側面透視図を示す。また、図１５〜１７に、該壁面の構築の様子を示す図面に代わる写真を示す。
図１４から分かるように、本発明において使用される略Ｕ字形状の棒状ピンの長さは、樹脂又は繊維シートの垂直方向の長さよりも大きいので、上方から垂直方法に、完全に挿入された場合、該シートの下方に棒状ピンの間隙部が突き出して、真下の充填材中に挿入されることとなる。これにより、棒状ピン挿入によるブロック同士の連結の拘束力が増大する。
前記ステップ（３）に先立って、セルの形状を保持するため拘束治具とともに、壁面を構成する最外側の樹脂又は繊維シートを仮留めするために、前記略Ｕ字形状の棒状ピンを使用することもできる。図１５〜１７には、セルの形状を保持するため拘束治具とともに、壁面を構成する最外側の樹脂又は繊維シートを仮留めするために、前記略Ｕ字形状の棒状ピンが使用されている様子を示している。仮留めで使用された棒状ピンは、各セル内に充填材が充填された後には、取り外される。このように、本発明において使用される略Ｕ字形状の棒状ピンは、セル構造体のブロック同士の連結と、セル内に充填材を充填する際の再外側セルの仮留めとの、少なくとも２つの機能を有する多用途部材であることが分かる。
FIG. 14 is a side perspective view of the wall surface constructed by the embankment wall construction method. FIGS. 15 to 17 show photographs in place of the drawings showing the construction of the wall surfaces.
As can be seen from FIG. 14, the length of the substantially U-shaped pin used in the present invention is larger than the vertical length of the resin or fiber sheet, so that it was completely inserted in the vertical direction from above. In this case, the gap between the rod-shaped pins protrudes below the sheet and is inserted into the filler just below. Thereby, the restraining force of the connection of the blocks by rod-shaped pin insertion increases.
Prior to the step (3), the substantially U-shaped rod-shaped pin is used to temporarily fasten the outermost resin or fiber sheet constituting the wall surface together with a restraining jig for maintaining the shape of the cell. You can also. In FIGS. 15 to 17, the substantially U-shaped rod-like pin is used to temporarily fasten the outermost resin or fiber sheet constituting the wall surface together with a restraining jig to maintain the shape of the cell. It shows a state. The rod-shaped pin used for temporary fastening is removed after the filler is filled in each cell. Thus, the substantially U-shaped rod-shaped pin used in the present invention has at least two of the connection between the blocks of the cell structure and the temporary fixing of the outer cell when the cell is filled with the filler. It can be seen that this is a versatile member having one function.
本発明に係るハニカム状３次元立体セル構造体の複数のブロック同士の連結方法、及び該連結方法を用いた盛土壁面の構築工法は、作業が簡単であり、強度があり、かつ美観に優れるため、土木建築等の分野で、道路の路盤材、歩道の基礎材、仮設道路や擁壁等の土木用途の地盤補強材として、重荷重の支持や浸食防止等のために利用可能なハニカム状３次元立体セル構造体の使用に際し、好適に利用可能である。 The method for connecting a plurality of blocks of the honeycomb-shaped three-dimensional three-dimensional cell structure according to the present invention and the method for constructing the embankment wall surface using the connecting method are simple in work, strong, and excellent in aesthetics. Honeycomb 3 that can be used to support heavy loads and prevent erosion, etc. in the fields of civil engineering and construction, as ground reinforcement for roads, foundation materials for sidewalks, civil engineering such as temporary roads and retaining walls When using a three-dimensional three-dimensional cell structure, it can be suitably used.
Claims (6)
隣接する展張された前記各ブロックの端部を構成し互いに接触する前記各セルの樹脂又は繊維シートを、挟みこむように、前記樹脂又は繊維シートの垂直方向の長さよりも大きい長さの略Ｕ字形状の棒状ピンを、上方から垂直方法に、挿入して、前記隣接するブロック同士を連結する、
を含む前記連結方法。 A plurality of long-sided resin or fiber sheets arranged in parallel in the width direction are partially joined repeatedly at predetermined intervals, and this is stretched in a direction perpendicular to the width direction to form a honeycomb-like cell. A method for connecting a plurality of blocks of a honeycomb-shaped three-dimensional three-dimensional cell structure to each other, the following steps:
A substantially U-shape having a length larger than the length of the resin or fiber sheet in the vertical direction so as to sandwich the resin or fiber sheet of each cell that constitutes an end portion of each adjacent expanded block and contacts each other. Insert a shape-like pin-like pin from above in a vertical manner to connect the adjacent blocks together.
The said connection method containing.
（１）略水平面上に、幅方向に並設された複数の長辺状の樹脂又は繊維シートを互い所定の間隔で繰り返し部分的に接合し、これを前記幅方向と直交する方向に展張することによってハニカム状のセルを形成するハニカム状３次元立体セル構造体の複数のブロックを、隣接して、設置・展張し、
（２）隣接する展張された前記各ブロックの端部を構成し互いに接触する前記各セルの樹脂又は繊維シートを、挟みこむように、前記樹脂又は繊維シートの垂直方向の長さよりも大きい長さの略Ｕ字形状の棒状ピンを、上方から垂直方法に、挿入して、前記隣接するブロック同士を連結し、
（３）前記各セルの内部に、砕石、砂、現地発生土を含む充填材を充填し、
（４）前記ステップ（１）〜（３）を繰り返して、壁面を構築する、
を含む前記盛土壁面の構築工法。 A construction method for embankment wall, the following steps:
(1) On a substantially horizontal plane, a plurality of long-sided resins or fiber sheets arranged in parallel in the width direction are partially joined repeatedly at a predetermined interval, and are spread in a direction perpendicular to the width direction. A plurality of blocks of the honeycomb-like three-dimensional three-dimensional cell structure forming the honeycomb-like cells are installed and extended adjacent to each other,
(2) The length of the resin or fiber sheet is larger than the vertical length of the resin or fiber sheet so as to sandwich the resin or fiber sheet of each cell that constitutes an end portion of each adjacent expanded block and contacts each other. Insert a substantially U-shaped rod-like pin in a vertical manner from above to connect the adjacent blocks together,
(3) The inside of each cell is filled with a filler containing crushed stone, sand and locally generated soil,
(4) Repeat steps (1) to (3) to construct a wall surface.
The construction method of the said embankment wall surface containing.
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