JPH073862A - Wedge-shaped one piece type foundation material - Google Patents
Wedge-shaped one piece type foundation materialInfo
- Publication number
- JPH073862A JPH073862A JP14784093A JP14784093A JPH073862A JP H073862 A JPH073862 A JP H073862A JP 14784093 A JP14784093 A JP 14784093A JP 14784093 A JP14784093 A JP 14784093A JP H073862 A JPH073862 A JP H073862A
- Authority
- JP
- Japan
- Prior art keywords
- wedge
- pipeline
- base material
- shaped
- members
- 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.)
- Granted
Links
Landscapes
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は管路の不等沈下防止工
法等に用いられる基礎材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a basic material used for a method for preventing uneven settlement of pipes and the like.
【０００２】[0002]
【従来の技術】下水管その他の管路を地中に埋設する場
合、地中における管路の不等沈下に起因した管路の接続
部のずれ、折損、ひび割れ等の発生を防止するために管
路の下に基礎材を敷設する不等沈下防止工法が行なわれ
ている。この工法に用いられる基礎材として、プラスチ
ックで金型一体成形された梯子状の基礎材が提示されて
いる。2. Description of the Related Art When sewage pipes and other pipelines are buried in the ground, in order to prevent displacement, breakage, cracking, etc. of the pipeline connection due to uneven settlement of the pipeline in the ground. An uneven settlement prevention method is used to lay a foundation material under the pipeline. As a basic material used in this method, a ladder-shaped basic material integrally formed of plastic has been proposed.
【０００３】図３に従来の基礎材を示す。この基礎材１
は、２本の縦部材２の互いに向かい合う側面に３本の横
部材３が所定間隔で配され、これら縦部材２及び横部材
３がフラットな同一平面でなる底面４を形成するように
一体に成形されている。更に、横部材３の上面には管路
の下面に相応した湾曲部５が形成されており、管路の下
面を密着状態で支持できるようになっている。FIG. 3 shows a conventional base material. This foundation material 1
The three horizontal members 3 are arranged at predetermined intervals on opposite side surfaces of the two vertical members 2, and the vertical members 2 and the horizontal members 3 are integrally formed so as to form a flat bottom surface 4 having the same plane. It is molded. Further, a curved portion 5 corresponding to the lower surface of the pipeline is formed on the upper surface of the lateral member 3 so that the lower surface of the pipeline can be supported in a close contact state.
【０００４】そして、このような基礎材１を用いた不等
沈下工法は、地面から所定の深さに掘削溝を掘削し、上
記基礎材１を掘削溝の底部に複数個連続的に敷設した
後、隣接する基礎材１同士を、ほぞ部６とほぞ受け部７
によって連結し、次に下水管等の管路をその上に載せ、
最後に掘削溝内に土を入れて埋設することにより、管路
の不等沈下を防止するものである。In the unequal settlement method using the base material 1 as described above, an excavation groove is excavated from the ground to a predetermined depth, and a plurality of the base materials 1 are continuously laid at the bottom of the excavation groove. After that, the adjacent base materials 1 are mortar 6 and mortise receiver 7
, Then put a pipe such as a sewer pipe on it,
Finally, by burying the soil in the excavation trench, it prevents uneven settlement of the pipeline.
【０００５】このような基礎材１は、プラスチックの一
体成形品（モールド品）であり、高さ寸法が小さくなっ
ているため、掘削溝の掘削作業、土留作業、埋戻作業、
残土処理作業、掘削溝内での基礎材の敷設作業等の負担
が軽減され、また基礎材１も腐らないなどの長所をもっ
ている。Such a base material 1 is an integrally molded product of plastic (molded product) and has a small height. Therefore, it is possible to perform excavation work for excavation trenches, soil retaining work, backfilling work,
It has the advantages that the burden of residual soil processing work, laying work of the foundation material in the excavation trench, etc. is reduced, and that the foundation material 1 does not rot.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、このよ
うな基礎材１においては、管路の横方向における基礎材
１への位置決めは、基礎材１の横部材３の上面に形成さ
れた湾曲部５によって行なわれるため、多様な外径を持
つ管路に対応することができなかった。However, in such a base material 1, the positioning of the conduit on the base material 1 in the lateral direction is performed by the curved portion 5 formed on the upper surface of the lateral member 3 of the base material 1. Therefore, it was not possible to deal with pipelines with various outer diameters.
【０００７】また、仮に湾曲部５を広角のＶ字状溝とす
れば、多様な外径に対応することは可能であっても、基
礎材１及び横部材３の厚みや強度の関係上、溝の深さ及
び幅を大きくできない。通常、管路のような円筒状の物
品の横方向に対する位置決めの確実度は、その荷重を支
える２つの支持点間の距離に依存するが、広角のＶ字状
溝による場合の２つの支持点間の距離は非常に小さいた
め、管路の位置決めの確実度が低くなり、それだけ管路
の下側及び側面への埋戻作業時には土砂の偏りのないよ
う慎重にならざるを得ず、埋戻作業に時間がかかること
になる。If the curved portion 5 is a wide-angle V-shaped groove, it is possible to cope with various outer diameters, but in view of the thickness and strength of the base material 1 and the lateral member 3, The groove depth and width cannot be increased. Normally, the certainty of lateral positioning of a cylindrical article such as a pipeline depends on the distance between two supporting points that bear the load, but two supporting points when a wide-angle V-shaped groove is used. Since the distance between the pipes is very small, the positioning accuracy of the pipeline is low, and it is necessary to be careful not to bias the soil during the backfilling work to the lower and side surfaces of the pipeline. It will take time to work.
【０００８】この発明は、以上のような点に着目してな
されたもので、多様な外径を持つ管路に容易に対応する
ことができ、確実に管路の位置決めを行なうことのでき
る基礎材を提供することを目的としている。The present invention has been made by paying attention to the above points, and it is possible to easily cope with pipes having various outer diameters and to reliably position the pipes. The purpose is to provide wood.
【０００９】[0009]
【課題を解決するための手段】この発明は、上記の目的
を達成するために、管路を載置した状態で掘削溝の底部
に連続的に敷設され、平行な縦部材間に横部材が所定間
隔ごとに架設されて梯子状に一体成形された、管路の不
等沈下工法用の基礎材において、管路の横方向の位置決
めをするためのくさび状部材が、上記縦部材と横部材に
囲まれた空間内に、縦部材又は横部材から容易に切離せ
るようランナ部を介して基礎材と一体成形されてなって
いる。そして、くさび状部材のくさび先端の反対側に
は、くさび面の高さより低い段差部が設けられている。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a horizontal member between continuous vertical members which are continuously laid at the bottom of an excavation groove with a pipe line placed thereon. In a foundation material for a unequal settlement of a pipeline, which is erected at predetermined intervals and integrally molded in a ladder shape, the wedge-shaped member for laterally positioning the pipeline is the vertical member and the horizontal member. It is integrally molded with the base material via the runner portion so as to be easily separated from the vertical member or the horizontal member in the space surrounded by. Then, a step portion lower than the height of the wedge surface is provided on the opposite side of the wedge tip of the wedge member.
【００１０】[0010]
【作用】本発明は以上のように構成されているので、く
さび状部材を管路の外径に合わせて横部材上に配設する
ことにより、多様な外径を持つ管路に容易に対応するこ
とができる。また、くさび状部材を作業現場で容易に切
り離せるため、別途に管路の位置決め用部材を用意する
ことなく管路を基礎材上に位置決めすることができ、縦
部材と横部材に囲まれた空間内にくさび状部材が形成さ
れているため、基礎材の嵩を増大させないので、作業現
場への運搬性、保管の容易性などを損なわない。Since the present invention is constructed as described above, by disposing the wedge-shaped member on the lateral member in accordance with the outer diameter of the conduit, it is possible to easily cope with conduits having various outer diameters. can do. Further, since the wedge-shaped member can be easily separated at the work site, the pipeline can be positioned on the foundation material without separately preparing a positioning member for the pipeline, which is surrounded by the vertical member and the horizontal member. Since the wedge-shaped member is formed in the space, the bulk of the base material is not increased, and therefore the transportability to the work site and the ease of storage are not impaired.
【００１１】さらに、横部材に湾曲部やＶ形溝を形成す
ることに比べて、くさび面の傾斜及びくさび面の高さの
設定は自由度が大であるため、管路の横方向の位置決め
に対する確実度を向上させることができる。Further, since the degree of freedom in setting the inclination of the wedge surface and the height of the wedge surface is large as compared with the case of forming the curved portion or the V-shaped groove in the lateral member, the lateral positioning of the pipeline is performed. The certainty can be improved.
【００１２】そして、くさび状部材の先端の反対側には
くさびの有効高より低い段差部が設けられているので、
くさび状部材を基礎材に固定する際、釘による打ち込み
量が少なく作業能率を向上することができる。Since a step portion lower than the effective height of the wedge is provided on the side opposite to the tip of the wedge-shaped member,
When fixing the wedge-shaped member to the base material, the amount of nail driving is small and the work efficiency can be improved.
【００１３】[0013]
【実施例】以下、本発明の好適な実施例を図１及び図２
に基づいて説明する。この実施例に係る梯子状のくさび
一体形の基礎材８は、プラスチックによる金型一体成形
品（モールド品）であり、２本の縦部材９と、３本の横
部材１０、１１、１２と、くさび状部材１３とを備えて
いる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to FIGS.
It will be described based on. The ladder-shaped wedge-integrated base material 8 according to this embodiment is an integrally molded product (molded product) of a mold made of plastic, and includes two vertical members 9 and three horizontal members 10, 11, and 12. , Wedge-shaped member 13.
【００１４】２本の縦部材９の上部の内側は、基礎材８
上に載置される管路２４の連結部分に位置するソケット
２５の「逃げ」のために斜面部１４が形成されている。
従って、その断面形状は五角形となっている。また、縦
部材９の両端には上下に２つ割りされた接続部１５、１
６が互い違いに形成され、この接続部１５、１６を重ね
合わせ、接続部に設けられたネジ孔１７を介してボルト
１８及びナット１９によって隣接する基礎材８同士を連
結できるようになっている。The inside of the upper part of the two vertical members 9 is the base material 8
The slope portion 14 is formed for the "escape" of the socket 25 located at the connecting portion of the pipe line 24 placed on top.
Therefore, its sectional shape is a pentagon. Further, at both ends of the vertical member 9, there are vertically divided two connecting portions 15, 1
6 are formed alternately, and the connecting portions 15 and 16 are overlapped with each other, and adjacent base materials 8 can be connected to each other by a bolt 18 and a nut 19 through screw holes 17 provided in the connecting portion.
【００１５】そして、横部材１０、１１、１２は縦部材
９よりやや低く形成され、横部材１０、１１、１２と縦
部材９との６箇所の接合部分には、後述するくさび状部
材１３の配設のために６つの凹部２０があり、この凹部
２０の底面は横部材１０、１１、１２と同一の高さとな
っている。さらに、縦部材９と横部材１０、１１、１２
の底面２１は掘削溝の底部に均一に接するよう同一平面
に形成されている。The horizontal members 10, 11 and 12 are formed slightly lower than the vertical member 9, and the wedge-shaped member 13, which will be described later, is formed at the six joints between the horizontal members 10, 11 and 12 and the vertical member 9. There are six recesses 20 for the arrangement, and the bottom surface of this recess 20 has the same height as the lateral members 10, 11, 12. Further, the vertical member 9 and the horizontal members 10, 11, 12
Bottom surface 21 is formed in the same plane so as to uniformly contact the bottom of the trench.
【００１６】３本の横部材１０、１１、１２のうち中央
の横部材１１の一方及び他方の側面には、それぞれ縦部
材９と横部材１０、１１、１２で囲まれた空間内に突出
したくさび状部材１３が３個ずつ合わせて６個形成され
ている。このくさび状部材１３の幅は横部材１０、１
１、１２の幅よりもやや小さいものとなっている。そし
て、このくさび状部材１３は横部材１１と容易に切離せ
るように小さい断面積で形成されたランナ部２２を介し
て基礎材８と一体に成形されている。さらに、くさび状
部材１３のくさび先端と反対側、即ち、ランナ部２２に
連結した端部には釘の打ち込みによる固定を容易にする
ため、くさび面の高さよりも低い段差部２３が形成され
ている。Of the three horizontal members 10, 11, 12 one side and the other side surface of the central horizontal member 11 project into the space surrounded by the vertical member 9 and the horizontal members 10, 11, 12, respectively. Six wedge-shaped members 13 are formed by combining three wedge-shaped members 13 each. The width of this wedge-shaped member 13 is the width of the lateral members 10, 1
It is slightly smaller than the width of 1 and 12. The wedge-shaped member 13 is integrally formed with the base material 8 via a runner portion 22 having a small cross-sectional area so as to be easily separated from the lateral member 11. Further, a step portion 23 lower than the height of the wedge surface is formed on the opposite side of the wedge-shaped member 13 from the wedge tip, that is, the end portion connected to the runner portion 22 in order to facilitate fixation by driving a nail. There is.
【００１７】以下、上記のような基礎材８を用いて管路
の不等沈下工法を実施する場合について説明する。先
ず、各くさび状部材１３を複数回屈曲又は回転するか鋸
などによりランナ部２２を切断することにより各くさび
状部材１３を横部材１１から切り離した後、基礎材８を
予め所定の深さに掘られた掘削溝の底部に連続的に敷設
する。次に基礎材８の接続部１５に下からボルト１８を
挿入し、ボルト・ナットの共回り防止のために一旦ナッ
ト１９ａを締結した後、隣接する基礎材８の接続部１６
を重ね合わせ、その上側から再度ナット１９ｂを締結し
て連結する。この後、管路２４をそのソケット２５が横
部材１０、１１、１２上に位置しないよう長尺方向に調
整して基礎材８上に載置する。Hereinafter, the case of carrying out the unequal settlement method of the pipeline using the above-mentioned base material 8 will be described. First, after each wedge-shaped member 13 is bent or rotated a plurality of times or the runner portion 22 is cut by a saw or the like, the wedge-shaped members 13 are separated from the lateral member 11, and then the base material 8 is preliminarily set to a predetermined depth. Laying continuously at the bottom of the excavated trench. Next, a bolt 18 is inserted into the connecting portion 15 of the base material 8 from below, and a nut 19a is temporarily tightened to prevent corotation of the bolt and nut, and then the connecting portion 16 of the adjacent base material 8 is connected.
Are piled up, and the nut 19b is fastened again from the upper side to connect them. After this, the conduit 24 is adjusted in the longitudinal direction so that the socket 25 thereof is not located on the lateral members 10, 11, 12 and placed on the base material 8.
【００１８】そして、管路２４が基礎材８の略中央とな
るように前記６個のくさび状部材１３を管路２４に当接
させて前記各凹部２０及び横部材１０、１１、１２の上
面に配設し、管路２４の横方向における位置決めを行な
う。その後に段差部２３の上方から横部材１０、１１、
１２に釘を打ち込み、各くさび状部材１３を横部材１
０、１１、１２上に固定するが、この段差部２３はくさ
び面より低く形成されているので、管路２４の下部側面
と掘削溝側面との狭い空間内でも釘の打ち込み量が少な
く作業性がよい。The six wedge-shaped members 13 are brought into contact with the conduit 24 so that the conduit 24 is substantially at the center of the base member 8 and the upper surfaces of the recesses 20 and the lateral members 10, 11 and 12 are contacted with each other. To position the conduit 24 in the lateral direction. After that, the lateral members 10, 11,
A nail is driven into 12 and each wedge-shaped member 13 is attached to the lateral member 1.
It is fixed on 0, 11, and 12, but since the step portion 23 is formed lower than the wedge surface, the nail driving amount is small even in a narrow space between the lower side surface of the pipeline 24 and the excavation groove side surface, and workability is improved. Is good.
【００１９】上記のような作業を順次繰り返して他の管
路２４をソケット２５を介して連続的に連結・載置を行
い所定距離の管路２４を設置した後、管路２４の下側及
び側面に順次土を入れる。こうして、くさび状部材１３
を管路２４に当接させて横部材１０、１１、１２及び凹
部２０上に配設し確実に管路２４の横方向の位置決めを
行なうと、管路２４の外径に合わせて何種類もの基礎材
８を用意する必要がなく、加えて速やかに埋戻作業をす
ることができるので、低コストで短期間に管路２４の埋
設工事が終了する。By repeating the above-mentioned work in sequence, the other pipe lines 24 are continuously connected and placed through the socket 25 to set the pipe line 24 at a predetermined distance, and then the lower side of the pipe line 24 and Fill the sides with soil. Thus, the wedge-shaped member 13
When the pipe 24 is placed on the lateral members 10, 11, 12 and the recess 20 by contacting the pipe 24 to reliably position the pipe 24 in the lateral direction, a number of types can be obtained according to the outer diameter of the pipe 24. Since it is not necessary to prepare the base material 8 and the backfilling work can be performed promptly, the burying work of the pipeline 24 is completed at a low cost in a short period of time.
【００２０】なお、上記実施例では、横部材１１の両側
面に、６個のくさび状部材１３を３個ずつ形成したが、
これは中央以外の横部材１０、１２の互いに対向する側
面又は縦部材９の互いに対向する側面に適宜配置して形
成してもよい。また、各くさび状部材１３のくさび面を
上方に向けた状態で形成したが、例えば、くさび面の高
さを基礎材８の高さよりも大きいものとする場合には、
９０度倒してくさび面を横に向けた状態とすることも可
能である。さらに、くさび先端の反対側端部と横部材１
１とをランナ部２２を介して一体成形したが、くさび部
分の先端と横部材１１とを連結させて一体成形し、複数
回曲折することにより切り離すようにしてもよい。In the above embodiment, six wedge-shaped members 13 are formed on each side surface of the lateral member 11, and three wedge-shaped members 13 are formed on each side.
This may be appropriately arranged and formed on the side surfaces of the horizontal members 10 and 12 other than the center which face each other or the side surfaces of the vertical member 9 which face each other. Further, although each wedge-shaped member 13 is formed with the wedge surface facing upward, for example, when the height of the wedge surface is larger than the height of the base material 8,
It is also possible to tilt it 90 degrees so that the wedge surface faces sideways. Further, the opposite end of the wedge tip and the lateral member 1
1 and 1 are integrally formed via the runner portion 22, but the tip of the wedge portion and the lateral member 11 may be connected and integrally formed, and may be separated by bending a plurality of times.
【００２１】[0021]
【発明の効果】この発明に係る基礎材は、以上説明して
きた如き内容のものであって、本発明によれば、基礎材
に管路の位置決め用くさび状部材が容易に切り離せる状
態で一体成形されているため、別途に位置決め用部材を
用意することなしに、作業現場において多様な外径の管
路を基礎材上に容易に位置決めすることができるという
効果を奏する。The base material according to the present invention has the contents as described above, and according to the present invention, the wedge-shaped member for positioning the conduit is integrated with the base material in a state where it can be easily separated. Since it is molded, it is possible to easily position the pipelines of various outer diameters on the base material at the work site without separately preparing a positioning member.
【００２２】また、本発明によれば、管路の横方向にお
ける位置決めがより確実となり、埋戻作業時の土砂の偏
りによる横方向への応力に対して十分に対抗することが
できるので、管路のずれに対する心配がなく、その結
果、管路の下側及び側面への埋戻作業のスピードアップ
が図れるという効果がある。Further, according to the present invention, the lateral positioning of the pipeline becomes more reliable, and the lateral stress due to the deviation of the soil during the backfilling work can be sufficiently counteracted. There is no concern about the deviation of the passage, and as a result, there is an effect that the backfilling work to the lower and side surfaces of the pipeline can be speeded up.
【００２３】さらに、くさび状部材の先端の反対側端部
にはくさび面の高さより低い段差部が設けられているの
で、くさび状部材を基礎材に固定する際、釘の打ち込み
量が少なく作業能率を向上することができる。Further, since the stepped portion lower than the height of the wedge surface is provided at the end portion on the opposite side of the tip end of the wedge-shaped member, when the wedge-shaped member is fixed to the base material, the nail driving amount is small and the work is performed. The efficiency can be improved.
【図１】本発明の一実施例に係る基礎材を示す斜視図で
ある。FIG. 1 is a perspective view showing a base material according to an embodiment of the present invention.
【図２】図１の基礎材に管路を載置した状態を示す斜視
図である。FIG. 2 is a perspective view showing a state in which a pipeline is placed on the base material of FIG.
【図３】従来の基礎材を示す斜視図である。FIG. 3 is a perspective view showing a conventional base material.
８ 基礎材 ９ 縦部材 １０、１１、１２ 横部材 １３ くさび状部材 ２０ 凹部 ２２ ランナ部 ２３ 段差部 ２４ 管路 8 Foundation member 9 Vertical member 10, 11, 12 Horizontal member 13 Wedge member 20 Recessed portion 22 Runner portion 23 Stepped portion 24 Pipeline
Claims (2)
続的に敷設され、平行な縦部材間に横部材が所定間隔ご
とに架設されて梯子状に一体成形された、管路の不等沈
下工法用の基礎材において、管路の横方向の位置決めを
するためのくさび状部材が、上記縦部材と横部材に囲ま
れた空間内に、縦部材又は横部材から容易に切離せるよ
うランナ部を介して基礎材と一体成形されていることを
特徴とするくさび状部材一体形の基礎材。1. A pipeline, which is continuously laid at the bottom of an excavation ditch in a state where the pipeline is placed, and horizontal members are erected at predetermined intervals between parallel vertical members and integrally formed in a ladder shape. In the basic material for the unequal settlement method, the wedge-shaped member for laterally positioning the pipeline is easily cut from the vertical member or the horizontal member in the space surrounded by the vertical member and the horizontal member. A base material integrated with a wedge-shaped member, characterized in that it is integrally molded with the base material via a runner portion so as to be separated.
は、くさび面の高さより低い段差部が設けられてなる請
求項１記載のくさび状部材一体形の基礎材。2. The wedge-shaped member-integrated base material according to claim 1, wherein the wedge-shaped member is provided with a step portion lower than the height of the wedge surface on the side opposite to the wedge tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14784093A JPH07122281B2 (en) | 1993-06-18 | 1993-06-18 | Wedge-shaped integrated base material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14784093A JPH07122281B2 (en) | 1993-06-18 | 1993-06-18 | Wedge-shaped integrated base material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH073862A true JPH073862A (en) | 1995-01-06 |
| JPH07122281B2 JPH07122281B2 (en) | 1995-12-25 |
Family
ID=15439445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14784093A Expired - Lifetime JPH07122281B2 (en) | 1993-06-18 | 1993-06-18 | Wedge-shaped integrated base material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07122281B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100401016C (en) * | 2006-07-21 | 2008-07-09 | 上海大学 | Automatic centering auxiliary device for multiple caliber plastic pipe online supersonic thickness measuring instrument |
-
1993
- 1993-06-18 JP JP14784093A patent/JPH07122281B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100401016C (en) * | 2006-07-21 | 2008-07-09 | 上海大学 | Automatic centering auxiliary device for multiple caliber plastic pipe online supersonic thickness measuring instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07122281B2 (en) | 1995-12-25 |
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