JPH0227746Y2 - - Google Patents
Info
- Publication number
- JPH0227746Y2 JPH0227746Y2 JP1984160596U JP16059684U JPH0227746Y2 JP H0227746 Y2 JPH0227746 Y2 JP H0227746Y2 JP 1984160596 U JP1984160596 U JP 1984160596U JP 16059684 U JP16059684 U JP 16059684U JP H0227746 Y2 JPH0227746 Y2 JP H0227746Y2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- jig
- diameter
- backfilling
- annular body
- 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
Links
- 238000000926 separation method Methods 0.000 claims description 14
- 239000013013 elastic material Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 description 6
- 239000004570 mortar (masonry) Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は、壁又は床等に設けられた貫通孔に貫
通して配設された配管と該貫通孔との間〓を埋め
戻す際に使用される容易に着脱自在かつ反復使用
可能な埋め戻し用治具に関する。[Detailed description of the invention] Industrial field of application The invention is used for backfilling the gap between a pipe installed through a through-hole provided in a wall or floor, and the through-hole. This invention relates to a backfilling jig that is easily attachable and detachable and can be used repeatedly.
従来の技術
建物の壁又は床等に設けられた貫通孔を通して
各種配管を配設した場合には、通常上記貫通孔と
配管との間のリング状間〓に埋め戻し材を充填し
て、火災時の相隣る室への火の廻り或いは煙の蔓
延を防止している。Conventional technology When various types of piping are installed through through-holes in the walls or floors of buildings, the ring-shaped space between the through-holes and the pipes is usually filled with backfilling material to prevent fires. This prevents the spread of fire or smoke to adjacent rooms.
従来このような埋め戻しを行なう場合には、第
６図ａ，ｂに縦断面図および平面図を示すように
中央に、配管１の外径と一致する孔２が設けられ
た、けい酸カルシウム或いは合板等の板体３を上
記孔２の直径方向に２分割し、配管１を挟んで壁
又は床４に釘止め、或いはジヤツキ止めによつて
固定し、上記壁又は床４の貫通孔５の内周面と配
管１の外周面との間のリング状間〓６の一方の開
口部６ａを閉塞し、他方の開口部６ｂよりセメン
トモルタル、或いは軽量骨材、無機繊維などを混
合した埋め戻し用のモルタルを注入固化させた
り、不燃物を押込んで閉塞している。 Conventionally, when carrying out such backfilling, calcium silicate is used, which has a hole 2 in the center that matches the outer diameter of the pipe 1, as shown in the vertical cross-sectional view and plan view in FIGS. 6a and 6b. Alternatively, a plate body 3 such as plywood is divided into two in the diameter direction of the hole 2, and fixed to the wall or floor 4 with the pipe 1 in between by nailing or jacking, and the through-hole 5 of the wall or floor 4 is fixed. One opening 6a of the ring-shaped gap 6 between the inner peripheral surface and the outer peripheral surface of the pipe 1 is closed, and the other opening 6b is filled with cement mortar, lightweight aggregate, inorganic fiber, etc. They are blocked by injecting mortar to solidify them or by pushing incombustible materials.
しかし、上記埋め戻し治具は、取付けに手間が
かかり、また釘打ち等によつて壁又は床等を損傷
し、また、それ自体破損し易いので反復使用出来
る回数も少ない。さらに配管は貫通孔の中心を通
らないことが多く、この場合、その偏心の大小に
かかわらず共通して使用し得てリング状間隙を完
全に塞ぐことができる、大きい外形の板体３を用
意しなければならない。 However, the above-mentioned backfilling jig is time-consuming to install, damages walls or floors due to nailing, etc., and is easily damaged, so it can only be used repeatedly. Furthermore, the piping often does not pass through the center of the through hole, and in this case, a large external plate 3 is prepared that can be used in common regardless of the size of the eccentricity and can completely close the ring-shaped gap. Must.
このように大きい外形の板体は、配管が通常建
築物隅部などの狭い場所で行なわれるので不便を
きわめ、その上、余分の材料の使用を余儀なくさ
れ無駄な点が指摘されていた。そのため、第７図
ａ，ｂに示すように、円形の平板１１の外径を貫
通孔５より少し大き目にし、内径は配管１の外径
とするとともに偏心せしめ、平板１１をその中心
と内径の中心とを通る直径によつて２分割し、分
割した一方の端部１２，１２にヒンジ１３を設
け、他方の端部１４，１４に着脱自在な係止部材
１５を取付けた埋め戻し治具（実開昭59−
123778）１６が提案されている。この治具１６は
第８図に示すように貫通孔５の中心を通らない配
管１でも着脱自在に取付けられ、反覆使用可能で
かつ効率のよい埋め戻しが出来るようにしたもの
である。 It has been pointed out that such a large external plate is very inconvenient because piping is usually carried out in a narrow space such as a corner of a building, and furthermore, it requires the use of extra material, which is wasteful. Therefore, as shown in FIGS. 7a and 7b, the outer diameter of the circular flat plate 11 is made slightly larger than the through hole 5, the inner diameter is set to the outer diameter of the pipe 1, and the flat plate 11 is made eccentric to the center and inner diameter. A backfilling jig is divided into two parts by the diameter passing through the center, a hinge 13 is provided at one of the divided ends 12, 12, and a removable locking member 15 is attached to the other end part 14, 14 ( Utsukai Showa 59-
123778) 16 have been proposed. As shown in FIG. 8, this jig 16 can be detachably attached to the pipe 1 that does not pass through the center of the through hole 5, and can be used repeatedly and can perform backfilling efficiently.
しかしこの治具１６は、剛体によつてつくられ
ていて剛体の配管への密着性がよくないので埋め
戻し材が漏れる他、剛体の配管に対するすべりど
めがないので埋め戻し材の重みで落下することさ
えある欠点を有する。また、配管として外径の僅
かの違いのあるものを使用した場合、剛性を有し
融通性をもたないのでそれぞれに対応する治具を
用いなければならない不便さがあつた。 However, since this jig 16 is made of a rigid body, the adhesion of the rigid body to the piping is not good, so the backfilling material leaks, and there is no slip prevention against the rigid body of the piping, so it falls due to the weight of the backfilling material. It even has some disadvantages. Furthermore, when pipes with slightly different outer diameters are used, they are rigid and inflexible, resulting in the inconvenience of having to use corresponding jigs for each pipe.
考案が解決しようとする問題点
本考案は、円形の貫通孔に対して配管の位置が
どのように偏心していても貫通孔内壁と配管外面
とのなす間〓の一方を必要十分に閉塞することが
出来、配管への密着性もよく、また配管径の種々
の違いにも容易に対応して用い得て、且つ反覆使
用可能な埋め戻し用治具を提供することにある。Problems to be Solved by the Invention This invention is capable of blocking one side of the gap between the inner wall of the through-hole and the outer surface of the pipe to a necessary and sufficient degree, no matter how eccentric the position of the pipe is with respect to the circular through-hole. It is an object of the present invention to provide a backfilling jig that can be used repeatedly, has good adhesion to pipes, can be easily used to accommodate various pipe diameters, and can be used repeatedly.
問題を解決するための手段
本考案は、上記の問題点を解決するためになさ
れたもので、その要旨は、壁、床等に設けた直径
Ａなる円形貫通孔を通して配管された外径ａなる
配管外周面と、該貫通孔内壁とのなす間〓の一方
の開口部を閉塞する、孔径がほぼａになる円形孔
部が偏心して穿設された可撓性弾性材料製の環状
体からなる治具であつて、該環状体の環状部の幅
が該環状体と円形孔部の共通の直径上において、
最大部分において（Ａ−ａ）よりやや大であり、
最小部分において1/2（Ａ−ａ）よりやや大であ
り、上記環状体にはこれを切断する分離部が設け
られ、この分離部には、分離部の相対する面を当
接した状態で固定する着脱自在な連結部材が設け
られてなる貫通孔埋め戻し用治具にある。Means for Solving the Problem The present invention was made to solve the above problems, and its gist is that a pipe with an outer diameter of a is connected through a circular through hole with a diameter of A provided in a wall, floor, etc. It consists of an annular body made of a flexible elastic material, in which a circular hole with a hole diameter of approximately a is eccentrically bored, which closes one opening between the outer circumferential surface of the pipe and the inner wall of the through hole. The jig is such that the width of the annular part of the annular body is on a common diameter of the annular body and the circular hole,
Slightly larger than (A-a) at the largest part,
It is slightly larger than 1/2 (A-a) at the smallest part, and the annular body is provided with a separation part that cuts it, and this separation part is provided with a part with the opposing surfaces of the separation part in contact with each other. A jig for backfilling a through hole is provided with a fixing and removable connecting member.
考案の具体的構成および作用
第１図および第２図は本考案に係る貫通孔埋め
戻し用治具（以下治具という）２１の一実施例を
示すもので、第１図は平面図、第２図は斜視図で
ある。第３図は床４等に設けた直径Ａなる貫通孔
５に直径ａなる配管１を通した縦断面図である。1 and 2 show an embodiment of a through-hole backfilling jig (hereinafter referred to as jig) 21 according to the present invention. Figure 2 is a perspective view. FIG. 3 is a longitudinal sectional view of a pipe 1 having a diameter of a passing through a through hole 5 having a diameter of A provided in a floor 4 or the like.
治具２１は、中心Ｄを有する環状体２４を本体
とするものであり配管１の外径ａとほぼ同じ直径
の円形孔部２３の中心Ｅが中心Ｄから偏心して穿
設されており、発泡ウレタン、軟質ゴム等の肉厚
の可撓性弾性材料によつて形成されている。 The jig 21 has an annular body 24 having a center D as a main body, and the center E of a circular hole 23 having approximately the same diameter as the outer diameter a of the pipe 1 is eccentric from the center D. It is made of a thick flexible elastic material such as urethane or soft rubber.
上記環状体２４でもつて配管１と貫通孔５との
なす間〓下部を必要にして十分に覆うためには配
管１が貫通孔５内の中心にある場合、及び、逆に
最大に偏心している場合を考慮して環状体２４の
形を決める必要がある。配管が最大に偏心してい
る場合即ち1/2（Ａ−ａ）だけ偏心している場合
は上記間〓は中心Ｄ，Ｅを通る共通直径上で最大
値（Ａ−ａ）をとり、逆に全く偏心していない場
合は最小値1/2（Ａ−ａ）をとる。従つて貫通孔
５を覆う必要最小限の環状体の直径Ｃは、
Ｃ＝（Ａ−ａ）＋ａ＋１／２（Ａ−ａ）＝３／2A
−１／2a
となる。 In the annular body 24, in order to sufficiently cover the lower part of the space between the pipe 1 and the through hole 5, the pipe 1 must be located at the center of the through hole 5, and vice versa. It is necessary to decide the shape of the annular body 24 in consideration of the case. When the piping is eccentric to the maximum, that is, when it is eccentric by 1/2 (A-a), the above distance 〓 takes the maximum value (A-a) on the common diameter passing through centers D and E, and conversely, it takes the maximum value (A-a) on the common diameter passing through centers D and E, and vice versa. If there is no eccentricity, take the minimum value 1/2 (A-a). Therefore, the minimum necessary diameter C of the annular body that covers the through hole 5 is: C=(A-a)+a+1/2(A-a)=3/2A
-1/2a.
しかし、この寸法では環状体の外周の一部が貫
通孔５の円周と一致することになり埋め戻し用モ
ルタルが漏れるおそれがある。 However, with this dimension, a part of the outer circumference of the annular body coincides with the circumference of the through hole 5, and there is a risk that the backfilling mortar may leak.
従つて必要十分な上記最大値は（Ａ−ａ）より
も大きく、また、最小値は1/2（Ａ−ａ）よりも
大きくしなければならない。 Therefore, the necessary and sufficient maximum value must be larger than (A-a), and the minimum value must be larger than 1/2 (A-a).
また、上記環状体には、これを切断する分離部
２５が設けられている。この分離部２５の対向す
る面には、この分離部２５を着脱自在に接続する
面着テープ（ベルベツトフアスナー）、ホツク等
の係止部材２６が取付けられ治具２１が構成され
ている。 Further, the annular body is provided with a separating portion 25 for cutting the annular body. A jig 21 is constructed by attaching a locking member 26 such as a surface adhesive tape (velvet fastener) or a hook to the opposing surface of the separation part 25 to connect the separation part 25 in a detachable manner.
この治具２１を用いて埋め戻しを行なうには、
先ず、分離部２５を分離して、第４図ａ，ｂに示
すように貫通孔５に挿通された配管１に巻回し、
分離部２５を接続し、リンク状又は偏心リング状
（以下リング状という）間〓２７の一方の開口部
２７ａに押付ける。 To perform backfilling using this jig 21,
First, the separation part 25 is separated and wound around the pipe 1 inserted into the through hole 5 as shown in FIGS. 4a and 4b.
The separation part 25 is connected and pressed against one opening 27a of a link-shaped or eccentric ring-shaped (hereinafter referred to as ring-shaped) gap 27.
この場合、治具２１の平面寸法は上記のように
なつているので、貫通孔５に対する配管１の位置
がどのようになつていても、それによつて形成さ
れるリング状間〓の開口部全面に必要にして十分
な広さに当てることが出来る。また、可撓性弾性
材料によつてつくられているので、配管１に強固
に取付けられ、そのパツキン性能によつて開口部
２７ａは完全に閉塞される。 In this case, since the planar dimensions of the jig 21 are as described above, no matter how the position of the pipe 1 with respect to the through hole 5 is, the entire opening of the ring-shaped gap formed thereby is It can be applied to a sufficient area as needed. Further, since it is made of a flexible elastic material, it is firmly attached to the pipe 1, and its sealing performance completely closes the opening 27a.
次いで他方の開口部２７ｂよりモルタル２８を
注入し、固化した後分離部２５を分離して配管１
より取外し、埋め戻しが完了する。 Next, mortar 28 is injected from the other opening 27b, and after solidifying, the separation part 25 is separated and the pipe 1
After removal, the backfilling is completed.
また、第５図は本考案の他の実施例を示すもの
で、係止部材２６を分離部２５の対向する面に設
けずに、分離部２５を間にして環状体２４の外周
に設け、分離部２５の対向する面を密着させたも
のである。このように、係止部材２６は、分離部
２５の対向する面を密着させて、配管１に固定す
ることが出来るものであればよく、取付け位置、
種類の制限はない。 Further, FIG. 5 shows another embodiment of the present invention, in which the locking member 26 is not provided on the opposing surfaces of the separating part 25, but is provided on the outer periphery of the annular body 24 with the separating part 25 in between. The opposing surfaces of the separating section 25 are brought into close contact. In this way, the locking member 26 may be any member as long as it can be fixed to the piping 1 by bringing the opposing surfaces of the separation part 25 into close contact with each other.
There are no type restrictions.
なお、分離部２５は、環状体２４を切断して円
形孔部２３を開くものであればよく、その位置、
形状の制限はない。 Note that the separation part 25 only needs to cut the annular body 24 to open the circular hole part 23, and the position thereof,
There are no shape restrictions.
また、治具２１にモルタルが付着し易い場合に
は、モルタル付着性のない、合成樹脂の薄膜など
を介在させて、モルタル注入を行なうことも出来
る。 Furthermore, if mortar is likely to adhere to the jig 21, mortar injection may be performed with a thin film of synthetic resin or the like that does not have mortar adhesion interposed therebetween.
考案の効果
以上述べたように、本考案に係る貫通孔埋め戻
し用治具は、貫通孔に対する配管の位置がどのよ
うになつていても、また配管の径が少々変動して
も一種類の治具による対応が出来、しかも剛体の
配管にすき間なく密着し、埋め戻し材の重みです
べり落ちたりすることがない。更に短時間の着脱
および反覆使用が出来、その他狭い場所での配管
へも適用できるので、埋め戻し作業を極めて能率
的、経済的に行うことを可能とするものである。Effects of the invention As described above, the through-hole backfilling jig according to the present invention can be used in one type of jig, regardless of the position of the piping relative to the through-hole or even if the diameter of the piping changes slightly. It can be handled with a jig, and it adheres closely to rigid piping without any gaps, so it will not slide down due to the weight of the backfill material. Furthermore, it can be attached and detached in a short time and used repeatedly, and can be applied to piping in other narrow places, making it possible to carry out backfilling work extremely efficiently and economically.
第１図および第２図は本考案に係る貫通孔埋め
戻し用治具の一実施例を示すもので、第１図は平
面図、第２図は斜視図、第３図は、貫通孔に配管
を挿通した状態を示す縦断面図、第４図ａ，ｂは
本考案の治具によつて埋め戻しを行なう状態を示
す図で、第４図ａは縦断面図、第４図ｂは、第４
図ａの−線矢視図、第５図は本考案に係る治
具の他の実施例を示す斜視図、第６図ａ，ｂは、
従来の埋め戻し法の説明図で、第６図ａは縦断面
図、第６図ｂは第６図ａの−線矢視図、第７
図ａ，ｂおよび第８図は従来の他の埋め戻し治具
の説明図で第７図ａは平面図、第７図ｂは斜視
図、第８図は、この治具を使つて埋め戻しを行な
う状態を示す縦断面図である。
１……配管、４……壁又は床（床など）、５…
…貫通孔、２１……貫通孔埋め戻し用治具（治
具）、２３……円形孔部、２４……環状体、２５
……分離部、２６……係止部材、Ａ……貫通孔の
直径寸法、ａ……配管の外径寸法。
1 and 2 show an embodiment of the jig for backfilling through holes according to the present invention, FIG. 1 is a plan view, FIG. 2 is a perspective view, and FIG. Figures 4a and 4b are longitudinal sectional views showing the state in which the pipe is inserted, and Figures 4a and 4b are views showing the state in which backfilling is performed using the jig of the present invention. Figure 4a is a longitudinal sectional view, and Figure 4b is a longitudinal sectional view. , 4th
FIG. 5 is a perspective view showing another embodiment of the jig according to the present invention, and FIGS. 6 a and b are
These are explanatory diagrams of the conventional backfilling method, where Fig. 6a is a longitudinal sectional view, Fig. 6b is a view taken along the - line in Fig. 6a, and Fig. 7
Figures a, b and Figure 8 are explanatory diagrams of other conventional backfilling jigs; Figure 7a is a plan view, Figure 7b is a perspective view, and Figure 8 is a backfilling jig using this jig. FIG. 1... Piping, 4... Wall or floor (floor etc.), 5...
...Through hole, 21...Jig for backfilling through hole (jig), 23...Circular hole, 24...Annular body, 25
... Separation part, 26 ... Locking member, A ... Diameter dimension of through hole, a ... Outer diameter dimension of piping.
Claims (1)
て配管された外径ａなる配管の外周面と、該貫通
孔内壁とのなす間〓の一方の開口部を閉塞する、
孔径がほぼａなる円形孔部が偏心して穿設された
可撓性弾性材料製の環状体からなる治具であつ
て、該環状体の環状部の幅が該環状体と円形孔部
の共通の直径上において、最大部分において（Ａ
−ａ）よりやや大であり、最小部分において1/2
（Ａ−ａ）よりやや大であり、上記環状体にはこ
れを切断する分離部が設けられ、この分離部に
は、分離部の相対する面を当接した状態で固定す
る着脱自在な連結部材が設けられてなることを特
徴とする貫通孔埋め戻し用治具。 Closing one opening between the inner wall of the through-hole and the outer circumferential surface of a pipe with an outer diameter of a that is piped through a circular through-hole with a diameter of A provided in a wall, floor, etc.
A jig consisting of an annular body made of a flexible elastic material in which a circular hole having a hole diameter of approximately a is eccentrically bored, the annular body having a width common to that of the annular body and the circular hole. on the diameter of (A
- slightly larger than a), 1/2 in the smallest part
It is slightly larger than (A-a), and the annular body is provided with a separation part that cuts it, and this separation part has a removable connection that fixes the opposing surfaces of the separation part in contact with each other. A jig for backfilling a through hole, characterized in that it is provided with a member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984160596U JPH0227746Y2 (en) | 1984-10-24 | 1984-10-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984160596U JPH0227746Y2 (en) | 1984-10-24 | 1984-10-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6175579U JPS6175579U (en) | 1986-05-21 |
| JPH0227746Y2 true JPH0227746Y2 (en) | 1990-07-26 |
Family
ID=30718520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984160596U Expired JPH0227746Y2 (en) | 1984-10-24 | 1984-10-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0227746Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58131242A (en) * | 1982-01-28 | 1983-08-05 | 水上 登代子 | Support tool for receiving mortar embedding arranged pipe sleeve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59123778U (en) * | 1983-02-09 | 1984-08-20 | 佐藤 光行 | Plate for filling holes in dirt floor pipes |
-
1984
- 1984-10-24 JP JP1984160596U patent/JPH0227746Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58131242A (en) * | 1982-01-28 | 1983-08-05 | 水上 登代子 | Support tool for receiving mortar embedding arranged pipe sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6175579U (en) | 1986-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4429907A (en) | Pipe coupler | |
| JPH0227746Y2 (en) | ||
| JPH0141823Y2 (en) | ||
| JP2918273B2 (en) | Joining method of PC box culvert | |
| JP2769111B2 (en) | Joints used for connecting manholes and conduits, and crimping jigs therefor | |
| JPH0221672Y2 (en) | ||
| JP4505094B2 (en) | Filling formwork for equipment piping | |
| JP2512260Y2 (en) | Formwork for filling holes | |
| JP2891670B2 (en) | Flexible joint structure of concrete product and concrete product having the flexible joint structure | |
| JP2000008467A (en) | Production of deformed precast concrete block | |
| JPH10292883A (en) | Joint for drain pipe setting and drain pipe setting method | |
| JPH0638957Y2 (en) | Fume pipe joint structure for propulsion | |
| JP2546396Y2 (en) | Manhole pipe joint structure | |
| JP3852178B2 (en) | Joint structure of anticorrosion coated concrete structural member | |
| JPH0613876Y2 (en) | Culvert box and gutter block connecting device | |
| JP2698924B2 (en) | Construction method of anticorrosion pipeline | |
| JPH0743245Y2 (en) | Box culvert joint structure | |
| JP2565907Y2 (en) | Sealing material for joints of precast concrete members | |
| JPS6111078U (en) | Backfill jig | |
| JPS6078187A (en) | Jig for back-filling | |
| JP2001220835A5 (en) | ||
| JPS5853876Y2 (en) | Joint for sheath | |
| JPH022135Y2 (en) | ||
| JP2933892B2 (en) | Use of sanding tape for joining PVC pipes to concrete equipment | |
| JPH0322970Y2 (en) |