JPS5845536B2 - Fabric ribbed formwork for civil engineering work - Google Patents

Description

【発明の詳細な説明】 本発明は、各種の土木工事に際し、法面の保護、安定を
図ったり、或は堰堤構築時その斜面や川底の洗掘を防止
したりする際にコンクリート充填のため敷設して使用さ
れる布帛製型枠に関するものであり、特にコンクリート
、砂利等の充填のみで流れの抵抗体となりうる畝を有す
る保護層を施工面の凹凸に順応させて容易に成形するこ
とが可能であると共に、製作、運搬、保管、展設が簡単
、容易であり、かつ、水抜き孔の形成も容易な新規な布
帛製の型枠を提供することを目的としている。[Detailed description of the invention] The present invention is useful for concrete filling when protecting and stabilizing slopes during various civil engineering works, or preventing scouring of slopes and riverbeds when constructing dams. This relates to a fabric formwork that is used by laying it down, and in particular, it can be easily formed into a protective layer with ridges that can act as a flow resistor by simply filling it with concrete, gravel, etc., adapting it to the unevenness of the construction surface. It is an object of the present invention to provide a new formwork made of fabric that is simple and easy to manufacture, transport, store, and expand, and also allows easy formation of drainage holes.

この種の布帛製型枠としては、既にその袋体内へコンク
リート、砂等を圧入、充填するようにしたものは提案す
れているがいずれも成形後の表面を略平滑にするものが
、多数の塊状凹凸が分散しているものであり、流れの抵
抗体ともなりつる一方向へ配列てれる畝を形成できる型
枠で、しかも畝を形成するための布帛空間の間に、充填
物の種類と粒度に応するフィルタ部乞兼ねる結合部を有
し、しかも機械的手段によって容易に製作できる型枠は
、要求されていたものの未だ開発されていなかったので
、本発明はこの型枠を提供するものである。This type of fabric formwork has already been proposed in which concrete, sand, etc. are press-fitted and filled into the bag body, but many of them have a substantially smooth surface after forming. It is a formwork that can form ridges arranged in one direction, which have dispersed lumpy unevenness and also act as a flow resistance, and between the fabric spaces for forming the ridges, there are Although there has been a need for a formwork that has a joint that can serve as a filter part depending on the particle size and that can be easily produced by mechanical means, the present invention provides this formwork. It is.

以下図示列に基いて本発明の詳細な説明する。The present invention will be described in detail below based on the illustrated columns.

本発明に係る型枠の実施例１は、第１図および第２図に
示す如く、２枚の布帛１，２か重ね合わσれて、周縁３
で一体に結合でれて全体として袋状に形成されている。Embodiment 1 of the formwork according to the present invention, as shown in FIGS. 1 and 2, has two fabrics 1 and 2 overlapped and
They are joined together to form a bag-like shape as a whole.

そして布帛１，２は第１図に示されるように前記布帛１
，２の横方向に一定間隔Ｗｋ存して前記布帛１，２の縦
方向に互に平行して形成されている結合部４によって互
に一体に結合され布帛１，２間に多数の区劃された空間
部６が形成されている。The fabrics 1 and 2 are the fabrics 1 and 2 as shown in FIG.
, 2 at a constant interval Wk in the horizontal direction of the fabrics 1 and 2, and are integrally connected to each other by connecting portions 4 formed parallel to each other in the longitudinal direction of the fabrics 1 and 2, and a large number of sections are formed between the fabrics 1 and 2. A space 6 is formed.

この各結合部４は所定の密度で幅Ｗの間に前記両布帛１
，２の対峙方向に配列されている長さｔの対峙間隔を規
制する多数のしぼり緒糸５の群よりなるもので、該しぼ
り線糸５群は、製織時の経緯倒れかの糸扱いにより或い
はミシン加工等により、形成され、両布帛１，２の所定
の対峙間隔を存する結合が達成される。Each of these joints 4 is connected to both the fabrics 1 between the widths W at a predetermined density.
, 2, which are arranged in the facing direction of the yarns 5 and 5, which regulate the facing interval of length t. Alternatively, the fabrics 1 and 2 are formed by sewing, etc., and the bonding between the two fabrics 1 and 2 is achieved with a predetermined distance from each other.

前記構成の布帛製型枠の、前記両布帛１，２およびしぼ
り線糸５群よりなる結合部４により形成づれる空間部６
を充填するためコンクリート、砂等を圧入、充填すると
、ここが膨隆し、型枠の断面形状は第２図のものから第
３図の如き形状となり、その外形は第４図に示す如く縦
方向に一定間隔で並んだ畝を形成する。A space 6 formed by the connecting portion 4 made of the two fabrics 1 and 2 and the group of squeeze wire threads 5 in the fabric form having the above structure.
When concrete, sand, etc. are pressed in and filled to fill the mold, this area swells, and the cross-sectional shape of the formwork changes from that in Figure 2 to the shape shown in Figure 3, and its external shape changes in the vertical direction as shown in Figure 4. Forms ridges lined up at regular intervals.

河岸等で流れに直角の方向にこの畝を形成する如く本発
明に係る型枠を敷設してコンクリート等を圧入、充填す
れば、畝により河岸に釦ける流れの抵抗体となり、河岸
近くの流速を減じ洗堀を防止する効果が特に大となる。If the formwork according to the present invention is laid on a riverbank or the like in a direction perpendicular to the flow, and concrete or the like is pressed in and filled, the ridges will act as a resistor for the flow toward the riverbank, reducing the flow velocity near the riverbank. The effect of reducing the amount of water and preventing scour is particularly large.

この場合、結合部４はその幅Ｗと長さｔとか畝間の連結
部の幅と前記両布帛１．２の対峙間隔とを規定すること
となる。In this case, the width W and length t of the connecting portion 4, the width of the connecting portion between the ridges, and the opposing distance between the two fabrics 1.2 are defined.

第２の実施例としては、予め一定間隔毎の結合部４間に
おける布帛１を布帛２より弛んだ状態に即ちより広い一
定間隔で形成した型枠においては、布帛間の空間部６に
コンクリート、砂等を圧入、充填すると、布帛１が膨隆
して畝となり、布帛２は殆ど膨隆せず、第５図に示す如
き断面形状となる。As a second embodiment, in a formwork in which the fabrics 1 between the joints 4 at regular intervals are made in a looser state than the fabrics 2, that is, formed at wider constant intervals, concrete is placed in the spaces 6 between the fabrics. When sand or the like is press-fitted and filled, the fabric 1 swells to form ridges, while the fabric 2 hardly swells and has a cross-sectional shape as shown in FIG.

前記の型枠において結合部４を形成するしぼり緒糸５の
密度をそれぞれ種々に設定することにより、飼えば密度
が粗であれば圧入されるコンクリート、砂、砂利等は結
合部４を通過して隣接する空間部６を流動しつつ充填さ
れ、結合部４内にも充填てれることとなり、型枠全体が
畝を有する１枚の板状のものとなり、密度が密なものに
おいては、この結合部４が充填物のフィルタとなって粗
大な充填物の隣接空間部６への流動を阻止し、かつ、結
合部４内の充填物の圧入が阻止される。By setting various densities of the squeeze cord 5 forming the joint part 4 in the formwork, if the density is coarse, the concrete, sand, gravel, etc. to be press-fitted will pass through the joint part 4. This causes the mold to flow and fill the adjacent space 6, and also fills the joint 4, making the entire formwork into a single plate-like piece with ridges. The connecting portion 4 acts as a filter for the filling, preventing coarse filling from flowing into the adjacent space 6, and also preventing the filling from being forced into the connecting portion 4.

前記密度の適当なものにおいては、粗大な充填物の結合
部４の通過は妨げられるが、細かい充填物のみの通過を
許す型枠となり、施工面の形状、凹凸。If the density is appropriate, the formwork will prevent coarse fillers from passing through the bonding portion 4, but will allow only fine fillers to pass through, and the shape of the construction surface, irregularities.

河岸の状態、河川の流速、充填材料の種別等に応じ適宜
の保護層を形成しつる型枠を得ることができる。A vine formwork can be obtained by forming an appropriate protective layer depending on the state of the riverbank, the flow rate of the river, the type of filling material, etc.

また前記結合部４に充填物の圧入が阻止されるものにあ
っては、この結合部４は布帛１，２およびしｆり緒糸５
，５のみより成るものである故、前記結合部４を水抜き
部として利用することもできる。In addition, in the case where press-fitting of the filler into the joint part 4 is prevented, the joint part 4 is connected to the fabrics 1 and 2 and the cord thread 5.
, 5, the connecting portion 4 can also be used as a water drainage portion.

第１図、第２図、第４図に示す如き構造では結合部４が
充填後における保護層の屈折部ともなりつる。In the structure shown in FIGS. 1, 2, and 4, the joint portion 4 also serves as a bent portion of the protective layer after filling.

前記第５図の如き断面形状をなす型枠においては、布帛
２の而が略平らであり、施工面が平らな場合、これとの
密着が良好な型枠を得ることができる。In a formwork having a cross-sectional shape as shown in FIG. 5, if the fabric 2 is substantially flat and the construction surface is flat, a formwork with good adhesion to the fabric 2 can be obtained.

この第５図に示す型枠は、第１図、第２図に示す実施例
における空間部６を形成している部分の布帛２を、第１
０図の如く襞７を設けて固定し、縮めることもできる。The formwork shown in FIG.
It is also possible to fix it by providing folds 7 as shown in Figure 0 and to shrink it.

寸た第５図の形状の型枠において、布帛２が充填物の圧
入、充填により膨隆することを防止するために、第９図
に示す如く斜にしぼり緒糸５′を設ければ、布帛２の膨
隆は殆ど防止される。In order to prevent the fabric 2 from swelling due to press-fitting and filling of the filler in the mold having the shape shown in FIG. The swelling of No. 2 is almost prevented.

前述の実施例に訃ける結合部４は、一方向に連続して設
けられているが、土木工事の施工面によっては、第６図
に示す如く千鳥状に配設されたものが適切な場合があり
、この型枠が充填物の圧入、充填によって膨隆し畝を形
成すると、第７図に示す如き外形を示す。Although the joints 4 in the above-mentioned embodiment are provided continuously in one direction, depending on the construction aspect of the civil engineering work, it may be appropriate to arrange them in a staggered manner as shown in Fig. 6. When this formwork swells and forms ridges by press-fitting and filling the filler, it exhibits an external shape as shown in FIG. 7.

前述のいずれの型枠においてもしぼり緒糸５の長さｔは
すべて一定のものであったが、このしぼり緒糸の長さｔ
”ｋ順次に異なった長さとすることにより、型枠の膨隆
時の断面形状を第８図に示す如き形状とすることもでき
る。In any of the above-mentioned formworks, the length t of the squeeze string 5 was all constant, but the length t of this squeeze string
By making the lengths different in the order of ``k'', the cross-sectional shape of the mold when inflated can be made into a shape as shown in FIG.

この形状も織成やミシン加工等によって製作することが
できる。This shape can also be manufactured by weaving, sewing, etc.

本発明は上述の如き槽底、作用のものであって屈撓、折
畳み自在の布帛製であり、製作、格納、運搬、展設が極
めて容易であり、生産性、作業性を著しく向上でせうる
し、施工により形成される保護層を施工面の凹凸、傾斜
等に完全に順応させることができると共に、充填材料を
コンクリート、砂利、砂管任意に選定でき、しかも、膨
隆後河岸の保護層形成においては、形成された畝により
河川の流速を減速する効果が著しく、従って河岸の洗堀
を防止する効果の大きい保護層を形成することができ、
その結合部の形状、しぼり緒糸の長さ、密度を変えるこ
とにより、この結合部を充填物あるいは地下水等のフィ
ルタ層として用いることができ、また場合によっては該
結合部を保護層の屈折部ともをしうるので、施工後にお
ける部分的な地盤沈下にも順応しつるようにもなしつる
ため、特異の保護層を形成することができる等の効果を
有しており、かつ、比較的容易かつ廉価に供給でき、施
工諸作業が容易かつ短時間で実施できることと相俟って
工事コストを低廉ならしめつる利益を有している。The present invention has a tank bottom as described above, which is made of flexible and foldable fabric, and is extremely easy to manufacture, store, transport, and deploy, and can significantly improve productivity and workability. Urushi allows the protective layer formed by construction to completely adapt to the irregularities and slopes of the construction surface, and the filling material can be arbitrarily selected from concrete, gravel, and sand pipes, and moreover, it is possible to form a protective layer on the river bank after swelling. In this case, the formed ridges have a remarkable effect of slowing down the flow velocity of the river, and therefore can form a protective layer that is highly effective in preventing riverbank scouring.
By changing the shape, length, and density of the joint, the joint can be used as a filler or a filter layer for underground water, and in some cases, the joint can be used as a bent part of the protective layer. It has the effect of being able to form a unique protective layer as it adapts to partial ground subsidence after construction and can be used to form a unique protective layer, and is relatively easy to install. Moreover, it can be supplied at a low price, and construction work can be carried out easily and in a short time, which together have the advantage of lowering construction costs.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は実施例１の一部省略平面図、第２図は第１図の
Ａ−Ａ線断面図、第３図は第２図の断面の型枠の膨隆時
の形状を示す同上断面図、第４図はその斜視図、第５図
は実施例２の一部省略断面図、第６図は結合部の連続し
ない別の実施例の一部省略断面図、第７図は第６図のＢ
−Ｂ線断面を含む一部省略斜視図、第８図はＬｆｆり相
系の長さの異なる更に別の実施例を示す断面図、第９図
は第５図に示すと同様、７Ｊ’ｒ面を得る別の実施例断
面図、第１０図は第５図に示す断面の型枠を得る装材構
造の断面図である。 １．２・・・・・・布帛、３・・・・・・周縁、４・・
・・・・結合部、５．５・・・・・・しぼり相系、６・
・・・・・空間部、７・・・・・・襞。Fig. 1 is a partially omitted plan view of Embodiment 1, Fig. 2 is a cross-sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a cross-sectional view of the same as above, showing the shape of the formwork when the cross-section shown in Fig. 2 is expanded. 4 is a perspective view thereof, FIG. 5 is a partially omitted cross-sectional view of the second embodiment, FIG. 6 is a partially omitted cross-sectional view of another embodiment in which the joint portion is not continuous, and FIG. B in the diagram
- A partially omitted perspective view including a cross section taken along the line B, FIG. 8 is a sectional view showing yet another embodiment with different lengths of the Lff phase system, and FIG. 9 is a 7J'r FIG. 10 is a cross-sectional view of a covering material structure for obtaining a form having the cross-section shown in FIG. 5. 1.2...Fabric, 3...Periphery, 4...
...Connection part, 5.5... Squeezed phase system, 6.
...Space part, 7...Folds.

Claims (1)

【特許請求の範囲】[Claims] １ 一定の対峙間隔を存して２枚の布帛が重ね合わブれ
ており、前記一定の対峙間隔は、布帛の一定方向に一定
間隔を存して列設され、かつ前記両布帛の相対峙する方
向に所定の密度、所定の長さで分布形成されているしぼ
り緒糸群よりなる結合部により保持され、前記両布帛の
中間に該両布帛およびしぼり緒糸群により形成された畝
状の所定形状の空間部は、コンクリート、砂、砂利等の
充填用の空間として形成されており、かつ前記結合部で
あるしぼり緒糸群を構成するしぼり線糸相互の間は粒度
の細かい充填物、水等の流通可能なフィルタ層として役
立つ構成とされていることを特徴とする土木工事用の布
帛製畝付型枠。1. Two pieces of fabric are overlapped with each other with a certain facing interval, and the certain facing interval is a line in which the two fabrics are arranged at a certain interval in a certain direction of the fabric, and the two fabrics are facing each other. A ridge-like predetermined shape is held between the two fabrics by a joint made of a group of squeeze cord yarns distributed at a predetermined density and a predetermined length in the direction, and a ridge-like predetermined shape formed by the two fabrics and the squeeze cord yarn group is located between the two fabrics. The space is formed as a space for filling with concrete, sand, gravel, etc., and the spaces between the squeeze wire threads that make up the squeeze wire group that is the joint section are filled with fine-grained filler, water, etc. A ribbed formwork made of fabric for civil engineering work, characterized in that it is configured to serve as a possible filter layer.