JP2592303B2 - Civil engineering net and its laying method - Google Patents
Civil engineering net and its laying methodInfo
- Publication number
- JP2592303B2 JP2592303B2 JP19131388A JP19131388A JP2592303B2 JP 2592303 B2 JP2592303 B2 JP 2592303B2 JP 19131388 A JP19131388 A JP 19131388A JP 19131388 A JP19131388 A JP 19131388A JP 2592303 B2 JP2592303 B2 JP 2592303B2
- Authority
- JP
- Japan
- Prior art keywords
- net
- civil engineering
- woven
- resin
- sewing
- 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.)
- Expired - Lifetime
Links
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Description
【発明の詳細な説明】 [産業上の利用分野] 本発明は、土木用網及びその敷設方法の改良に係り、
特に不等沈下防止工やヘドロめり込み防止工等に用いる
軽量で強度に優れ且つ連結が簡単確実に行える樹脂加工
織網製土木用網及びロープと止め具を用いる土木用網の
敷設方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to improvements in civil engineering nets and methods of laying the same.
In particular, the present invention relates to a method for laying a civil engineering net made of a resin-processed woven mesh and a civil engineering net using a rope and a stopper, which are lightweight, have excellent strength, and can be easily and reliably connected, and are used for unequal settlement prevention work or sludge prevention work.
[従来の技術] 現在、ヘドロめり込み防止工や軟弱地盤の不等沈下防
止工として、樹脂製ネットや樹脂加工織り網を使用する
ネット工法がかなり広く行われている。これは、ポリエ
チレンやポリプロピレン樹脂を用い押し出し成型した太
いストランドの長尺樹脂ネット、或いはナイロンやポリ
エステルの引き揃え糸を経緯に用いた目の大きな織り網
に樹脂加工したものを、適宜長さに裁断し横方向に数枚
縫着して得た土木用網を、縦及び横方向に多数枚連結し
て施工箇所に敷設し、その上から土砂を投入するもので
ある。尚、目の大きさは8〜35mm程度で用途や場所に応
じて種々なものが用いられている。[Related Art] At present, a net construction method using a resin net or a resin-processed woven net has been quite widely performed as a sludge digging prevention work or an uneven settlement prevention method for soft ground. This is a long resin net extruded using polyethylene or polypropylene resin, or a long woven net made of nylon or polyester drawn yarn. In this method, a large number of civil engineering nets obtained by sewing several pieces in the horizontal direction are connected in the vertical and horizontal directions, laid at the construction site, and earth and sand are poured from above. The size of the eyes is about 8 to 35 mm, and various kinds are used depending on the use and location.
そして、ヘドロめり込み防止工では投入土砂のヘドロ
内へのめり込みが防止され、投入量が少なくなって経済
的であるし、円形すべり等が発生しにくく施工が確実に
行なわれ、またネットによる排水面が形成されて圧密沈
下が促進される。一方不等沈下防止工では、網目内に拘
束された土とネット上下の土との間に摩擦力が働くため
に盛り土の横移動が抑止される結果不等沈下が防止さ
れ、またネットの引張力,剪断抵抗力が働いて軟弱地盤
の許容支持力が増大するし、地盤と路床間にネットを配
置して両者の相互貫入を防止し路床強度の低下を防止す
る。In addition, the sludge prevention work prevents the injected sediment from slipping into the sludge, which reduces the amount of input and is economical. Once formed, compaction settlement is promoted. On the other hand, in unequal settlement prevention work, frictional force acts between the soil confined in the mesh and the soil above and below the net, which suppresses the lateral movement of the embankment, thereby preventing unequal settlement and preventing the net from being pulled. The force and shear resistance work to increase the permissible bearing capacity of the soft ground, and a net is arranged between the ground and the subgrade to prevent the two from penetrating each other and prevent the lowering of the subgrade strength.
このようにネット工法は種々優れた利点を有するが、
時には数十〜数百町歩にも及ぶ広い施工場所に連続した
状態でネットを張設しなければならず、しかもネット自
体やその連結部が破れると土砂やヘドロが該部分から噴
き上がって所期の目的を達しなくなる。万一不備があっ
ても、土砂投入後の修復は不可能であり、これがネット
工法の泣きどころである。As described above, the net construction method has various excellent advantages,
Sometimes it is necessary to lay the net in a continuous state over a large construction area that extends for tens to hundreds of steps, and if the net itself or its connection part breaks, earth and sand or sludge will blow up from this part and the expected Will not achieve its purpose. Even if there is a defect, it is impossible to repair the soil after it has been put in, which is the cry of the net method.
[発明が解決しようとする課題] しかるに、現在用いられている樹脂製ネットや樹脂加
工織り網には種々な難点があり、ネット工法の利点を十
分に活かしきれないでいる。[Problems to be Solved by the Invention] However, resin nets and resin-processed woven nets currently used have various difficulties, and the advantages of the net construction method cannot be fully utilized.
即ち、樹脂製ネットでは延伸が殆ど行われていないた
め、靱性が劣り引張強度が低い。That is, since the resin net is hardly stretched, the toughness is poor and the tensile strength is low.
一方、樹脂加工織り網は糸自体が延伸されているし樹
脂含浸処理をしているので、引張強度や靱性に優れ、ま
た剛性も少なく軽量なため樹脂製ネットよりも使い易い
利点がある。しかし、樹脂製ネットと異なり交差してい
る経緯糸を樹脂で固めただけなため、樹脂加工織り網製
土木用網をそのままホックリンガー等の金具で連結する
ことはできない。現在、この種土木用網同士の連結は、
耳部に縫着した補強織物に適宜間隔をおいて紐を縫い付
けておきこの紐で連結することが行われている。On the other hand, resin-processed woven nets have the advantage that they are easier to use than resin nets because they have excellent tensile strength and toughness because the yarns themselves are stretched and are impregnated with resin, and have low rigidity and light weight. However, unlike the resin net, since the intersecting warp yarns are merely solidified with the resin, the civil engineering net made of the resin-processed woven net cannot be directly connected with a metal fitting such as a hook ringer. Currently, this kind of connection between civil engineering nets is
A string is sewn to a reinforcing fabric sewn to an ear at an appropriate interval, and connected with the string.
しかし、紐は補強織物を介して織りネットに結合され
ているので、一部の経糸や緯糸は紐に加わる引張力を分
担せず糸の強度を十分に発揮しない虞がある。また、一
々紐を結ぶのは力と根気を必要とし長さ1m当たり5〜10
箇所も連結するため作業効率が悪くコスト高になるう
え、結び方が悪いと解けるし、結んだ長さに長短がある
と短い箇所に応力が集中してその部分から破壊するなど
の難点がある。However, since the string is connected to the woven net via the reinforcing fabric, some warps and wefts may not share the tensile force applied to the string and may not sufficiently exhibit the strength of the thread. In addition, tying each string requires power and patience and requires 5-10
Since the parts are also connected, the work efficiency is low and the cost is high. In addition, if the tying is poor, it is possible to solve the problem.
[課題を解決するための手段] そこで本発明は、軽量で嵩張らずしかも強度に優れた
樹脂加工織り網製の土木用網に更に改良を加え、周縁部
をワイヤロープやナイロンロープ等のロープ類で補強す
るようにするとともに、土木用網の周縁部をロープごと
所定間隔をおいて止め具で結合して連結するようにし
た。[Means for Solving the Problems] Accordingly, the present invention has been made by further improving a civil engineering net made of a resin-processed woven net, which is lightweight, non-bulky and excellent in strength, and has a peripheral portion formed of a rope such as a wire rope or a nylon rope. In addition to the reinforcement, the peripheries of the civil engineering nets are connected together with the ropes at predetermined intervals by using fasteners.
即ち本発明の土木用網は、樹脂加工織り網(織り網の
樹脂含浸物)を適宜長さに細断したもの或いは更にこれ
を横方向に連設して長尺広巾なものにするとともに、周
縁部に補強用のロープ類を挿通するための筒部を形成し
たものである。That is, the civil engineering net of the present invention is obtained by chopping a resin-processed woven net (resin impregnated material of the woven net) into appropriate lengths or further connecting them horizontally to make them long and wide. A cylindrical portion for inserting a rope for reinforcement is formed in the peripheral portion.
筒部は、縁部を折り返しその端縁部を地部に縫着して
形成する。或いは、細巾に裁断した樹脂加工織り網や布
地等の別素材を縁部に縫着して形成してもよい。ロープ
の挿通を容易にするために、ガイド紐を予め筒部に収納
した状態で筒部を縫着形成しておくとよい。The cylindrical portion is formed by folding the edge portion and sewing the end edge portion to the ground portion. Alternatively, another material such as a resin-processed woven net or cloth cut into a narrow width may be sewn to the edge to form. In order to facilitate the insertion of the rope, the tubular portion is preferably formed by sewing with the guide string stored in the tubular portion in advance.
本発明土木用網の連結は、この筒部にロープ類を挿通
し筒部同士を突き合わせた状態で施工場所に配置し、所
定間隔をおいて筒部同士を止め具で結合することにより
行なう。The connection of the civil engineering net of the present invention is carried out by inserting ropes into the tubular portion, arranging the tubular portions in a state where the tubular portions are abutted with each other, and connecting the tubular portions at predetermined intervals with fasteners.
本発明の土木用網を構成する織り網は、網目の部分を
平織や搦織で形成したもので、後者の方が目崩れが少な
い。目の大きさは、5〜40mm,特に8〜25mm程度のもの
が好適である。織り網原反の巾は略1.5〜2.5m程度であ
る。The weaving net constituting the civil engineering net of the present invention has a mesh portion formed by plain weaving or garment weaving, and the latter has less collapse. The size of the eyes is preferably 5 to 40 mm, particularly preferably about 8 to 25 mm. The width of the woven web is about 1.5 to 2.5 m.
経緯糸は、ポリエステル,ナイロン,ビニロン等各種
合成繊維フィラメントの引揃え糸(撚を幾分かけてもよ
い)や撚り糸を用いる。前者の方が安価でしかも樹脂の
含浸が良好に行なわれる。強度的には、ポリエステルが
最も好ましい。尚、織りネットの引張強力は、繊維の種
類,糸の太さ,織り密度等により決まる。例えば、ポリ
エステル糸は5〜8g/d程度の引張強力を有するので、40
00dの糸を1m当たり100本配置したものは、2〜3t/mの引
張強力を有する。しかも、樹脂含浸によりこの強力は更
に増大する。As the warp yarn, a drawn yarn (may be slightly twisted) or a twist yarn of various synthetic fiber filaments such as polyester, nylon, and vinylon is used. The former is inexpensive and satisfactorily impregnates the resin. In terms of strength, polyester is most preferred. The tensile strength of the woven net is determined by the type of fiber, the thickness of the yarn, the weaving density, and the like. For example, since polyester yarn has a tensile strength of about 5 to 8 g / d,
A thread having 100 yarns of 100d arranged per meter has a tensile strength of 2 to 3 t / m. Moreover, this strength is further increased by resin impregnation.
樹脂の含浸は、補強以外に剛性の賦与,目寄り防止,
繊維のほつれ防止等に役立つ。樹脂としては、各種の熱
可塑性樹脂が用いられる。この内、コスト,繊維との親
和性等から、ポリ塩化ビニル樹脂が最も好ましい。加工
は、例えば溶融樹脂に含浸した後スクイズロールを通す
ことにより行なう。Resin impregnation provides rigidity other than reinforcement, prevention of blind spots,
Useful for preventing fiber fraying. Various thermoplastic resins are used as the resin. Among them, polyvinyl chloride resin is most preferable in view of cost, affinity with fiber, and the like. The processing is performed, for example, by impregnating the molten resin and then passing it through a squeeze roll.
樹脂加工織り網は巾が2m前後であるので、施工能率を
向上させるために予め工場で巾方向に複数枚連結してお
くと便利である。この連結は、20〜60m程度の長さに裁
断した樹脂加工済の織り網を適当枚数例えば5〜8枚程
度(2mとして10〜16m)耳部分を重ねて縫着することに
より行なう。その際、補強織物を介在させると、より堅
固に縫着できる。耳部を折り曲げたり折り曲げ部分に布
や紐を介在させると、抵抗力が増大する。縫着の効果を
より良くするために、耳部は経糸を増やし平織等ででき
る限り密に織り上げる。Since the width of the resin-processed woven net is about 2 m, it is convenient to connect a plurality of woven nets in the width direction in advance at the factory in order to improve construction efficiency. This connection is performed by sewing a suitable number of, for example, about 5 to 8 (10 to 16 m as 2 m) ear portions of a resin-processed woven net cut to a length of about 20 to 60 m. In that case, if a reinforcing fabric is interposed, sewing can be performed more firmly. If the ears are bent or a cloth or a string is interposed in the bent portion, the resistance increases. In order to improve the effect of sewing, the ears are increased in warp and woven as plainly as possible.
補強織物はかなりの引張応力を受けるが、該織物部分
に結び紐を縫着したりロープ挿通孔を穿設する場合のよ
うに強い集中応力は受けない。従って、ある程度地厚で
強度のある一重織物でも十分に使用できる。勿論、コス
トはかかるが二重、三重或いはそれ以上の多重織り組織
で織布したもの、例えば帆布やベルト織物も用いられ
る。織物は、腐蝕しにくい合成繊維製品が好ましい。ま
た、両者の縫着は織り網の各経緯糸を補強織物と一体化
すべく短いピッチで丈夫な太い糸を用いて堅固に行なう
ことが好ましい。或いは、縫着に代えて相重ねた織りネ
ットの各耳部に直近の網目部に紐やロープを通して綴り
込むことにより連結してもよい。何れの場合も、耳部の
巾は3〜10cm程度である。緯糸は2本引き揃えて用い、
耳部ではこれを二分するとより強固なものができる。The reinforced fabric receives considerable tensile stress, but does not receive strong concentrated stress as in the case where a knot is sewn or a rope insertion hole is formed in the woven fabric. Therefore, even a single woven fabric having a certain ground thickness and strength can be sufficiently used. Of course, although expensive, woven fabrics having a double, triple or higher multiple weave structure, such as canvas or belt fabric, may be used. The woven fabric is preferably a synthetic fiber product that does not easily corrode. In addition, it is preferable that the both are sewn firmly by using a strong thick thread at a short pitch so as to integrate each warp yarn of the woven net with the reinforcing fabric. Alternatively, instead of sewing, the ears of the superimposed woven net may be connected to each other by stitching a string or rope through the nearest mesh part. In each case, the width of the ear is about 3 to 10 cm. Two wefts are used in parallel.
In the ears, splitting this in half produces a stronger one.
次に、筒部について説明する。筒部は、土木用網の周
縁部に設けるが、樹脂加工織り網を縫着等により長尺広
巾の土木用網に仕上げた後では加工が困難である。そこ
で、裁断した樹脂加工織り網の該当部分、即ち土木用網
の長さ方向の両側と巾方向の両側(前後端)に、予め筒
部を形成しておく方法が好ましい。長さ方向では、側部
にくる樹脂加工織り網の一方の縁部を折り返す等して形
成し、巾方向では縫着連結する全ての樹脂加工織り網の
前後端部を折り返す等して形成する。筒部の大きさは、
細過ぎるとロープ類の挿通がし辛いし、太過ぎると止め
具にかかる引張力の分散が不十分となる。挿通するロー
プ類の太さにもよるが、偏平にした場合の巾が3〜10cm
程度、より好ましくは4〜6cm程度度とする。Next, the cylindrical portion will be described. The cylindrical portion is provided on the periphery of the civil engineering net, but it is difficult to process the resin processed woven net after finishing it into a long and wide civil engineering net by sewing or the like. Therefore, it is preferable to form a tubular portion in advance on a corresponding portion of the cut resin-processed woven net, that is, on both sides in the length direction and both sides (front and rear ends) in the width direction of the civil engineering net. In the length direction, it is formed by folding one edge of the resin-processed woven net that comes to the side, and in the width direction, it is formed by turning the front and rear ends of all the resin-processed woven nets to be sewn and connected. . The size of the cylinder is
If it is too thin, it will be difficult to insert ropes, and if it is too thick, dispersion of the tensile force applied to the stopper will be insufficient. Depending on the thickness of the ropes to be inserted, the width when flattened is 3 to 10 cm
Degree, more preferably about 4 to 6 cm.
本発明土木用網の連結に用いるロープ類は、ワイヤロ
ープやナイロンロープ等が用いられ、その太さは5〜25
mmφ程度である。尚、ロープ類の長さは、土木用網の寸
法と同程度でもよいし、その数倍程度でもよい。いずれ
にしても、挿通の便を考えて次々連結していく必要があ
る。The ropes used for connecting the civil engineering net of the present invention include wire ropes and nylon ropes, and the thickness is 5 to 25.
It is about mmφ. Note that the length of the ropes may be approximately the same as the size of the civil engineering net, or may be approximately several times the same. In any case, it is necessary to connect one after another considering the convenience of insertion.
止め具は、ホックリンガーを大型化したようなC状を
したもので、織り網或いはロープ類に引っ掛けた後偏平
に押圧して固定する。The stopper is formed in a C-shape similar to an enlarged hook ringer. The stopper is hooked on a woven net or ropes and then pressed flat to be fixed.
[実施例] 次に、本発明を図面に示す実施例に基づいて詳細に説
明する。Example Next, the present invention will be described in detail based on an example shown in the drawings.
第1図は、本発明に係る土木用網の一例を示す。この
土木用網1は、適宜長さ例えば50m程度に裁断した2m巾
の筒部付き樹脂加工織り網2(第2図(a)、(bb:以
下「筒部織り網」とする)を2枚と、同じ巾の普通タイ
プの樹脂加工織り網3(第2図(c):以下「織り網」
とする)を3枚夫々横方向に耳部で縫着したものであ
る。何れの織り網2、3もその前後端には別の筒部を設
けている。FIG. 1 shows an example of a civil engineering net according to the present invention. The civil engineering net 1 is made of a resin-processed woven net 2 with a cylindrical portion having a width of 2 m and appropriately cut to a length of, for example, about 50 m (FIG. 2 (a), (bb: hereinafter referred to as "tubular portion woven net")). And a normal type resin-processed woven mesh 3 having the same width as the sheet (FIG. 2 (c): hereinafter referred to as "woven net").
) Are sewn at the ears in the lateral direction. Each of the woven nets 2, 3 is provided with another cylindrical portion at the front and rear ends.
筒部織り網2は、長手方向の一側に筒部4を設け、他
側は緻密な耳部5とする。両者4、5の間は全て網目部
6である。この筒部4は、第2図(b)に示すように、
一側の縁部を折り曲げて緻密な耳部7と緻密な縫い付け
地部8を縫着して形成したものである。両者7、8の間
が筒部形成部9であり、網目で構成されている。耳部7
と縫い付け地部8の巾は3〜10cm程度、筒部形成部9の
巾は6〜20cm程度である。尚、第2図(b)中、符号10
は補強織物、11は縫糸である。縫着に際して、耳部7を
折り曲げたり、折り曲げ箇所に他の布や紐を介挿させる
と、摩擦力により引張強力が増大する。これらの場合、
耳部7の巾を倍程度にする。縫着箇所が密な場合には、
補強織物10を薄くしたり1枚にしたり或いは省略するこ
ともできる。The tubular woven net 2 is provided with a tubular portion 4 on one side in the longitudinal direction and a dense ear 5 on the other side. The mesh portion 6 is entirely between the two 4 and 5. As shown in FIG. 2 (b), the cylindrical portion 4
It is formed by bending an edge on one side and sewing a fine ear 7 and a fine sewing ground 8. A portion between the two 7 and 8 is a cylindrical portion forming portion 9, which is formed of a mesh. Ear 7
The width of the sewn ground portion 8 is about 3 to 10 cm, and the width of the tubular portion forming section 9 is about 6 to 20 cm. Note that, in FIG.
Is a reinforcing fabric, and 11 is a sewing thread. At the time of sewing, if the ear 7 is bent or another cloth or string is inserted into the bent portion, the tensile strength increases due to frictional force. In these cases,
The width of the ear 7 is doubled. If the sewing area is dense,
The reinforcing fabric 10 can be made thinner, one piece, or omitted.
本例の樹脂加工織り網の原反は、経緯糸にポリエステ
ルフィラメントの引揃え糸(2000d)をそれぞれ2本ず
つ用い、網目部6と筒部形成部9を搦織りとしたもので
ある。目の大きさは8mm角(糸の間隔は縦横とも10mm)
である。ただし、前記耳部7や縫い付け地部8及び他側
の耳部5は、密に折るために経糸を増やし且つ緯糸を二
分して平織としている。耳部5の巾は3〜10cm程度であ
る。各経糸や緯糸は、樹脂加工(塩化ビニル樹脂の含
浸)後のローラー加圧により偏平状(巾2mm、厚み0.7mm
程度)となっている。The raw fabric of the resin-processed woven mesh of this example is obtained by using two aligned yarns (2000d) of polyester filaments as warp yarns and forming a mesh portion 6 and a tubular portion forming portion 9 in a tangled weave. Eye size is 8mm square (interval between threads is 10mm in both length and width)
It is. However, the ear 7, the sewn ground 8, and the ear 5 on the other side have a plain weave by increasing the number of warps and bisecting the weft in order to be folded tightly. The width of the ear part 5 is about 3 to 10 cm. Each warp or weft is flattened (width 2 mm, thickness 0.7 mm) by roller pressing after resin processing (impregnation with vinyl chloride resin)
Degree).
一方、普通タイプの織り網3は、該織り網3と同形状
の原反に樹脂加工したもので、両側に巾5cm程度の耳部1
2を備える。耳部12や網目部6の構造、糸遣い等は筒部
織り網2と同じとする。On the other hand, the ordinary type woven net 3 is made of a raw material having the same shape as that of the woven net 3 and resin-processed.
2 is provided. The structure, threading, and the like of the ear 12 and the mesh 6 are the same as those of the tubular woven net 2.
両織り網2、3の縫着は、例えば第3図(第1図A−
A線断面図)に示すように、それぞれ耳部5、12を重
ね、補強織物13を介在させて行なう。符号14は縫糸であ
る。この場合も、耳部5、12を折り曲げたり、折り曲げ
箇所に布や紐を介挿する等、筒部4の形成時と同様に種
々な変形が考えられる。The sewing of the two woven nets 2 and 3 is performed by, for example, FIG. 3 (FIG. 1A-
As shown in the sectional view along the line A), the lugs 5 and 12 are overlapped with each other and the reinforcing fabric 13 is interposed. Reference numeral 14 denotes a sewing thread. In this case as well, various deformations can be considered, such as bending the ears 5 and 12 and inserting a cloth or a string at the bent portion, as in the case of forming the cylindrical portion 4.
次に、巾方向端部(前後端)の筒部15について説明す
る。本例では、筒部4と同様に折り曲げにより形成して
いる。即ち、第4図(a)に示すように織り網3(筒部
織り網2でも同じ)の原反16の長さ方向の所定間隔(例
えば50m+折り返し部の長さ)毎に、網目からなる筒部
形成部17を設け、該筒部形成部17の中央部分で二つ折り
する。そして、その前後に設けた緻密な縫い付け地部1
8、19を重ねて縫着して巾方向の筒部15が得られる(第
4図(b))。この場合の縫着も、前記筒部4の場合と
同様補強織物13を用いる。縫い付け地部18、19の巾は3
〜10cm、筒部形成部17の巾は6〜20cmである。尚、図中
符号20は切断線である。Next, the cylindrical portion 15 at the width direction end (front and rear end) will be described. In this example, it is formed by bending similarly to the cylindrical portion 4. That is, as shown in FIG. 4 (a), the mesh is formed at every predetermined interval (for example, 50 m + length of the folded portion) in the length direction of the raw fabric 16 of the woven net 3 (the same applies to the tubular woven net 2). A tubular portion forming portion 17 is provided, and the tubular portion forming portion 17 is folded in two at a central portion thereof. And the finely sewn ground part 1 provided before and after that
8 and 19 are overlapped and sewn to obtain a widthwise cylindrical portion 15 (FIG. 4 (b)). The sewing in this case also uses the reinforcing fabric 13 as in the case of the tubular portion 4. The width of the sewn parts 18 and 19 is 3
1010 cm, and the width of the tube forming portion 17 is 62020 cm. Note that reference numeral 20 in the figure is a cutting line.
しかして、長さ50m、巾10m程度の長尺広巾の土木用網
1が得られる。この土木用網1は、ロール状に巻いて搬
送する。施工現場では、これを第5図(a)に示すよう
にそれぞれワイヤロープ21を挿通した筒部4同士(又は
15同士)を突き合わした状態で広げて配置する。次い
で、所定間隔をおいて止め具22で結合して、全体を連結
していく。Thus, a long and wide civil engineering net 1 having a length of about 50 m and a width of about 10 m can be obtained. The civil engineering net 1 is transported after being wound into a roll. At the construction site, as shown in FIG.
15) are placed in an abutting position. Next, they are connected at predetermined intervals by the stoppers 22, and the whole is connected.
尚、第5図(a)では止め具22の両端を筒部4の縫着
面より内側に挿通しているが、第5図(b)に示すよう
に筒部4のワイヤロープ21に引っ掛けるようにして挿通
してもよい。この場合も、ワイヤロープ21が各緯糸に係
合して十分な補強作用がなされる。ただ、図示は省略す
るが、筒部4を、全て耳部7や縫い付け地部8と同様に
密に織成した場合は、止め具22の挿通は第5図(a)と
同様に止め具22の両端を筒部4の縫着面より内側に挿通
する。尚、ワイヤロープ21が滑って土木用網1が偏るの
を防止するために、適宜にロープ21を筒部4、15に強く
締結する等の処置をするとよい。In FIG. 5 (a), both ends of the stopper 22 are inserted inside the sewing surface of the tubular portion 4, but are hooked on the wire rope 21 of the tubular portion 4 as shown in FIG. 5 (b). You may insert like this. Also in this case, the wire rope 21 is engaged with each weft to provide a sufficient reinforcing effect. However, although illustration is omitted, when all the cylindrical portions 4 are woven densely in the same manner as the ear portions 7 and the sewn ground portions 8, the insertion of the stoppers 22 is performed in the same manner as in FIG. Insert both ends of 22 into the inside of the sewing surface of the tube portion 4. In order to prevent the wire rope 21 from slipping and the civil engineering net 1 from being biased, it is preferable to appropriately take measures such as appropriately tightening the rope 21 to the cylindrical portions 4 and 15.
止め具22としては、例えば第6図(a)に示すように
長さが数〜数十cmのC状のもので、これを網やロープに
引っ掛けた後、同図(b)のように押圧変形して固定す
る。The stopper 22 is, for example, a C-shaped member having a length of several to several tens of cm as shown in FIG. 6 (a), which is hooked on a net or a rope, and then as shown in FIG. 6 (b). Press and deform to fix.
ただ、筒部4、15へのロープ21の挿通を現場で行なう
ことはなかなか困難である。これに対処するために、予
め工場でロープを挿通しておくとか、筒部4を縫製によ
り形成する時点でロープ21を組み込んでおくことが考え
られる。ただ、ロープが嵩張るので運送に不便ではあ
る。However, it is very difficult to insert the ropes 21 into the tube parts 4 and 15 on site. In order to cope with this, it is conceivable to insert a rope in advance at a factory or to incorporate the rope 21 at the time when the tubular portion 4 is formed by sewing. However, it is inconvenient for transportation because the rope is bulky.
そこで、筒部4を縫製により形成する時点でガイド紐
23を組み込んでおき、このガイド紐23により第7図の如
くロープ21を筒部4に引き込むようにすると便利であ
る。筒部15の場合は、夫々の筒部15にガイド紐23を組み
込み、各ガイド紐23を結んで1本につなげておくとよ
い。Therefore, the guide string is formed when the cylindrical portion 4 is formed by sewing.
It is convenient that the rope 21 is drawn into the cylindrical portion 4 as shown in FIG. In the case of the cylindrical portions 15, it is preferable to incorporate the guide strings 23 into the respective cylindrical portions 15 and connect the respective guide strings 23 so as to be connected to one.
一方ロープ21自体の連結は、例えば第8図に示すよう
に、ロープ21の一方の端部のリング21aに、他端部に設
けたフック21bを引っ掛けることにより行なう。On the other hand, the connection of the rope 21 itself is performed by hooking a hook 21b provided at the other end to a ring 21a at one end of the rope 21, as shown in FIG. 8, for example.
次に、他の実施例を説明する。第9図は、筒部4の形
成の仕方の他の例を示す。即ち、筒部の形成を樹脂加工
織り網の縁部自体を用いるのでなく、他の素材、例えば
同様な樹脂加工をした細巾織り網24や布地の細巾物を、
筒部織り網2や織り網3の周縁部に縫着する。同図
(a)は、細巾織り網24で筒部織り網2の耳部7の上下
を挟むようにして縫着した例で、同図(b)は該耳部7
の上側に重ねるようにして縫着した例を示す。Next, another embodiment will be described. FIG. 9 shows another example of a method of forming the cylindrical portion 4. That is, instead of using the edge itself of the resin-processed woven net for the formation of the cylindrical portion, other materials, for example, a narrow woven net 24 or a cloth narrow object made of the same resin processing,
Sewing is performed on the peripheral edge of the tubular woven net 2 or woven net 3. FIG. 2A shows an example in which the upper and lower portions of the ear portion 7 of the tubular woven net 2 are sewn by a narrow woven net 24, and FIG.
The figure shows an example in which sewing is performed so as to overlap on the upper side of.
第10図は、長さ方向には前記例同様筒部4を形成し、
巾方向端部(前後端)には別体の補強織物25を縫着し、
該補強織物25に適宜間隔をおいて多数の透孔26を設けた
土木用網27を示す。この場合も、土木用網同士の連結は
従来のものよりも容易にできる。FIG. 10 shows a case where a cylindrical portion 4 is formed in the length direction in the same manner as in the above example,
A separate reinforcing fabric 25 is sewn to the width direction ends (front and rear ends),
A civil engineering net 27 in which a large number of through holes 26 are provided at appropriate intervals in the reinforcing fabric 25 is shown. Also in this case, the connection between the civil engineering nets can be made easier than the conventional one.
[発明の効果] 以上詳述したように、本発明の土木用網は織り網に樹
脂を含浸させたものからなり、しかも、その長手方向又
は巾方向の少なくとも一方の周縁部に、補強用のロープ
を挿通する筒部を形成したものである。[Effects of the Invention] As described above in detail, the civil engineering net of the present invention is made of a woven net impregnated with a resin, and has a reinforcing edge provided on at least one peripheral portion in the longitudinal direction or the width direction. This is one in which a tubular portion through which a rope is inserted is formed.
従って、土木用網を現場に拡げ筒部にロープを挿通
し、向かい合う筒部同士を止め具で所定間隔毎に結合す
るだけで連結できることとなり、ヘドロ層等の悪条件下
でも簡単にネット付設作業ができ大きな省力化や効率化
が図れる。しかも、紐を結ぶ従来方法と異なり、締め付
けのバラツキや解けもなく、確実に連結作業ができる。
また縁部を折り返して縫着するなど製造が極めて簡単で
大量生産に向くとともに、ロープ類で補強されており且
つ全ての経糸と緯糸が引張力を分担するので、繊維の強
力さを十分に活かすことがで強度的にも理想的なもので
ある。Therefore, it can be connected simply by expanding the civil engineering net to the site, inserting the rope into the tubular portion, and connecting the facing tubular portions at predetermined intervals with the stopper, and easily attaches the net even under bad conditions such as a sludge layer. As a result, large labor saving and efficiency improvement can be achieved. In addition, unlike the conventional method of tying the string, the connection work can be reliably performed without variation or loosening of the tightening.
In addition, it is extremely easy to manufacture, such as folding the edges and sewing, and it is suitable for mass production, and it is reinforced with ropes and all the warp and weft share the tensile force, making full use of the strength of the fiber This is also ideal in terms of strength.
第1図は本発明に係る土木用網の一例を示す概略平面
図、第2図(a)は筒部織り網の一部省略した平面図、
第2図(b)は同図(a)におけるB−B線部分に於け
る断面図、第2図(c)は普通タイプ織り網の一部省略
した平面図、第3図は第1図A−A線断面図、第4図
(a)は織り網原反の部分平面図、第4図(b)は同図
(a)の原反から得られた織り網の部分平面図、第5図
(a)は本発明土木用網の連結状態を示す一部拡大した
平面図、第5図(b)は土木用網の他の連結状態を示す
部分拡大断面図、第6図(a)は止め具の一例を示す正
面図、第6図(b)は変形後の止め具の正面図、第7図
はガイド紐を用いてロープを挿通する状態の部分斜視
図、第8図はロープの端末形状の一例を示す正面図、第
9図(a)、(b)は夫々異なる筒部の他の例を概略断
面図、第10図は土木用網の他の例を示す平面図である。 1・27……土木用網、16……織り網原反 2……筒部織り網、17……筒部形成部 3……織り網、21……ワイヤロープ 4・15……筒部、22……止め具 5・7・12……耳部、24……細巾織り網 6……網目部FIG. 1 is a schematic plan view showing an example of a civil engineering net according to the present invention, and FIG.
2 (b) is a cross-sectional view taken along the line BB in FIG. 2 (a), FIG. 2 (c) is a plan view of the ordinary type woven mesh partially omitted, and FIG. 3 is FIG. FIG. 4 (a) is a partial plan view of a raw woven cloth, FIG. 4 (b) is a partial plan view of a woven net obtained from the raw cloth of FIG. FIG. 5 (a) is a partially enlarged plan view showing a connected state of the civil engineering net of the present invention, FIG. 5 (b) is a partially enlarged sectional view showing another connected state of the civil engineering net, and FIG. 6 (a). ) Is a front view showing an example of the stopper, FIG. 6 (b) is a front view of the stopper after deformation, FIG. 7 is a partial perspective view showing a state where a rope is inserted using a guide string, and FIG. 9 (a) and 9 (b) are schematic cross-sectional views each showing another example of a different tubular portion, and FIG. 10 is a plan view showing another example of a civil engineering net. It is. 1.27… Civil net, 16… Woven woven web 2… Tube woven net, 17… Tube forming part 3… Woven net, 21… Wire rope 4.15… Tube, 22 Stopper 5.7.12 ... Ear, 24 ... Narrow weave net 6 ... Mesh
Claims (5)
て、周縁部に補強用のロープを挿通するための筒部を形
成したことを特徴とする土木用網。1. A civil engineering net comprising a resin impregnation of a woven net, wherein a cylindrical portion for inserting a reinforcing rope is formed in a peripheral portion thereof.
に縫着して形成するものである請求項1記載の土木用
網。2. The civil engineering net according to claim 1, wherein the cylindrical portion is formed by folding an edge portion and sewing the edge portion to a ground portion.
ものである請求項1記載の土木用網。3. The civil engineering net according to claim 1, wherein the cylindrical portion is formed by sewing another material to an edge portion.
筒部に収納した状態で筒部を縫着形成したものである請
求項1、請求項2又は請求項3記載の土木用網。4. The civil engineering net according to claim 1, wherein the tubular portion is sewn and formed in a state in which a guide cord for assisting the insertion of the rope is stored in the tubular portion in advance.
プを挿通した筒部同士を突き合わせた状態で施工場所に
配置し、所定間隔をおいて筒部同士を止め具で結合する
ことにより連結していくことを特徴とする土木用網の敷
設方法。5. A civil engineering net having a tubular portion formed on a peripheral portion thereof is arranged at a construction site in a state where the tubular portions having ropes inserted therein are abutted with each other, and the tubular portions are joined at predetermined intervals by fasteners. A method for laying civil engineering nets, characterized in that they are connected by the following method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19131388A JP2592303B2 (en) | 1988-07-30 | 1988-07-30 | Civil engineering net and its laying method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19131388A JP2592303B2 (en) | 1988-07-30 | 1988-07-30 | Civil engineering net and its laying method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0243408A JPH0243408A (en) | 1990-02-14 |
JP2592303B2 true JP2592303B2 (en) | 1997-03-19 |
Family
ID=16272479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19131388A Expired - Lifetime JP2592303B2 (en) | 1988-07-30 | 1988-07-30 | Civil engineering net and its laying method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2592303B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR980002329A (en) * | 1996-06-14 | 1998-03-30 | 김종천 | Woven Mat and Woven Mat Fastening Device |
DE102005052084A1 (en) * | 2005-10-28 | 2007-05-03 | Huesker Synthetic Gmbh | System for an earthworks |
-
1988
- 1988-07-30 JP JP19131388A patent/JP2592303B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0243408A (en) | 1990-02-14 |
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