JP2832286B2 - Duct sleeve for manhole extension - Google Patents
Duct sleeve for manhole extensionInfo
- Publication number
- JP2832286B2 JP2832286B2 JP2417597A JP41759790A JP2832286B2 JP 2832286 B2 JP2832286 B2 JP 2832286B2 JP 2417597 A JP2417597 A JP 2417597A JP 41759790 A JP41759790 A JP 41759790A JP 2832286 B2 JP2832286 B2 JP 2832286B2
- Authority
- JP
- Japan
- Prior art keywords
- duct sleeve
- manhole
- hole
- duct
- impregnated 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 - Fee Related
Links
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、マンホールの増設口用
ダクトスリーブに関し、特にダクトスリーブの外周部分
に設けけられる樹脂接着剤含浸体の収容溝および含浸体
自体の改良に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a duct sleeve for an additional opening of a manhole, and more particularly to an improvement in a groove for accommodating a resin adhesive impregnated body provided on an outer peripheral portion of the duct sleeve and the impregnated body itself.
【0002】[0002]
【従来の技術】従来、既設のマンホール等地下構造物の
側壁に、予めダクト増設口を設けるための場所を用意し
ておき、増設に際し貫通孔を開け、この貫通孔に通信ケ
ーブル等を挿通するための配管を行う施工法が知られて
いる。そして、このダクト増設口を設けるための貫通孔
に対しマンホール内側から外側に向け嵌挿してマンホー
ルに固定する増設用ダクトスリーブの、貫通孔内周面と
対向するスリーブ外周部分に、Oリング,接着剤収容
溝,スリーブの長さ方向に沿って配設される複数の弾性
支持片等を設けて貫通孔に嵌挿し固定するようにした施
工方法が本出願人等によって提案されている。2. Description of the Related Art Conventionally, a place for providing an additional duct is prepared in advance on the side wall of an existing underground structure such as a manhole, and a through hole is opened when the duct is extended, and a communication cable or the like is inserted into the through hole. There is known a construction method of performing piping. An O-ring and an adhesive are attached to the outer peripheral portion of the sleeve of the additional duct sleeve, which is inserted from the inside of the manhole to the outside and fixed to the manhole in the through hole for providing the duct addition port, facing the inner peripheral surface of the through hole. The present applicant has proposed a construction method in which a plurality of elastic support pieces and the like are provided along the length direction of the sleeve, and are inserted and fixed in the through holes.
【0003】[0003]
【発明が解決しようとする課題】ところで、上記従来の
施工法の場合においては、接着剤収容溝に収容される樹
脂接着剤含浸体が、ダクトスリーブをダクト増設口に嵌
挿する際に、ダクト増設口との摩擦抵抗により接着剤収
容溝からずれしまい、所期の接着効果を発揮できない、
という問題点があった。By the way, in the above-mentioned conventional construction method, when the resin adhesive impregnated body accommodated in the adhesive accommodating groove inserts the duct sleeve into the duct extension opening, It is displaced from the groove for accommodating adhesive due to frictional resistance with the expansion port, and the intended adhesive effect cannot be exhibited.
There was a problem.
【0004】本発明は、上記の問題点を解決することを
目的になされたものである。[0004] The present invention has been made to solve the above problems.
【0005】[0005]
【課題を解決するための手段】この目的を達成するため
に本発明は、既設のマンホール等地下構造物の所定部位
に貫通孔を設け、この貫通孔に通信ケーブル等を挿通す
るための配管を行うようにしたダクト増設口に、マンホ
ール内側から外側に向け嵌挿してマンホールに固定する
増設口用ダクトスリーブおいて、上記ダクトスリーブ
は、貫通孔内周面と対向する外周部分に、嵌挿方向に対
し前方が浅く後方が深くなるテーパ面を形成した所定幅
の樹脂接着剤含浸体の収容溝を形成したことを特徴とす
るものである。In order to achieve this object, the present invention provides a through hole at a predetermined portion of an existing underground structure such as a manhole, and a pipe for inserting a communication cable or the like into the through hole. In the duct expansion sleeve which is inserted into the duct addition opening from the inside to the outside of the manhole and fixed to the manhole, the duct sleeve is inserted in the outer peripheral portion facing the inner peripheral surface of the through hole in the insertion direction. On the other hand, a housing groove for a resin adhesive impregnated body having a predetermined width and having a tapered surface that is shallow at the front and deep at the rear is formed.
【0006】また、上記ダクトスリーブの貫通孔内周面
と対向する外周部分に収容溝を形成し、この収容溝に樹
脂接着剤含浸体を収容すると共に、該含浸体を網体によ
り被包するようにしたことを特徴とするものである。A housing groove is formed in an outer peripheral portion of the duct sleeve opposite to the inner peripheral surface of the through hole, and a resin adhesive impregnated body is housed in the housing groove, and the impregnated body is covered with a net. It is characterized by doing so.
【0007】さらに、上記網体を、ダクトスリーブの嵌
挿方向前方において弾性体により押圧し、収容溝内にお
いて固定するようにしたことを特徴とするものである。[0007] Further, the mesh body is pressed by an elastic body in the front of the duct sleeve in the insertion direction, and is fixed in the accommodation groove.
【0008】[0008]
【作用】上記の構成によって、増設用ダクトスリーブを
貫通孔に嵌挿するとき、樹脂接着剤含浸体が収容溝から
ずれることがなく、含浸体からにじみ出た樹脂接着剤が
所定の位置で固化して所期の接着性,防水性が得られ
る。According to the above construction, when the additional duct sleeve is inserted into the through hole, the resin adhesive impregnated body does not deviate from the accommodation groove, and the resin adhesive oozing out of the impregnated body is solidified at a predetermined position. The desired adhesion and waterproofness can be obtained.
【0009】[0009]
【実施例】以下、図面を参照して本発明の一実施例につ
いて説明する。図6において符号1は地下に設けられた
既設のマンホールで、このマンホール1,1間には通信
ケーブル等を挿通するための多数の既設の管路2が布設
されている。この管路2は上下に複数段,左右に複数列
集中的に設けられているが、これら既設管路2のほかマ
ンホール1には、将来、管路を増設することを予測し
て、例えば既設管路2の上部に増設予定スペース3が設
けられている。An embodiment of the present invention will be described below with reference to the drawings. In FIG. 6, reference numeral 1 denotes an existing manhole provided underground, and a number of existing pipelines 2 for inserting communication cables and the like are laid between the manholes 1 and 1. The pipeline 2 is provided in a plurality of stages vertically and a plurality of rows in the horizontal direction. In addition to the existing pipeline 2, the manhole 1 is expected to be expanded in the future. A space 3 to be added is provided above the pipe 2.
【0010】そして、増設予定スペース3位置にダクト
増設口を設ける場合には、適宜な孔開け工具で所定寸法
の貫通孔4をあける(図5参照)。この貫通孔4には、
図1ないし図4に示す増設用のダクトスリーブ5が嵌挿
される。このダクトスリーブ5は、例えば塩化ビニール
製のもので、一端側を上記貫通孔4に挿通するように
し、他端側に継手部6が形成されている。上記増設用の
ダクトスリーブ5の貫通孔4に挿通する側には、貫通孔
4の長さ,即ち、マンホール1の側壁1aの厚さにほぼ
相当する長さ部分の外周に樹脂層7が被着されている。
この樹脂層7は、上記貫通孔4の内径とほぼ等しい外径
を有し、その外周に、長さ方向の前後2カ所に、周方向
の位相をずらせてそれぞれ4個ずつのウレタンゴムから
なる抵抗板8,9を等間隔に設けている。この抵抗板
8,9は、樹脂層7の表面よりわずかに外側に突出して
おり、その高さ,長さ,幅,個数等は適宜変えてもよい
ものである。抵抗板8,9間の樹脂層7外周に、嵌挿方
向に対し前方が浅く後方が深くなるテーパ面を形成した
所定幅の含浸体収容溝10が形成され、この収容溝10
にリング状の樹脂接着剤含浸体11を収容するようにし
ている。When a duct expansion port is provided at the position of the space 3 to be expanded, a through hole 4 having a predetermined size is formed by an appropriate drilling tool (see FIG. 5). In this through hole 4,
The additional duct sleeve 5 shown in FIGS. 1 to 4 is fitted. The duct sleeve 5 is made of, for example, vinyl chloride. One end of the duct sleeve 5 is inserted into the through hole 4, and the joint 6 is formed on the other end. On the side of the additional duct sleeve 5 inserted into the through hole 4, a resin layer 7 is coated on the outer periphery of the length of the through hole 4, that is, the length substantially corresponding to the thickness of the side wall 1 a of the manhole 1. Is being worn.
The resin layer 7 has an outer diameter substantially equal to the inner diameter of the through hole 4, and is made of four urethane rubbers, each of which has a phase shifted in the circumferential direction at two locations in the longitudinal direction on the outer circumference thereof. The resistance plates 8 and 9 are provided at equal intervals. The resistance plates 8, 9 protrude slightly outward from the surface of the resin layer 7, and the height, length, width, number, and the like thereof may be changed as appropriate. On the outer periphery of the resin layer 7 between the resistance plates 8 and 9, an impregnated body accommodating groove 10 having a predetermined width and having a tapered surface that is shallow in the front and deep in the rear in the insertion direction is formed.
A ring-shaped resin adhesive impregnated body 11 is accommodated in the housing.
【0011】樹脂接着剤含浸体11は、収容溝10内に
おいてガーゼのような網体12により被覆され、網体1
2の一端は収容溝10の深い部分でなまし鉄線13によ
り固定され、その他端は樹脂層7の嵌挿方向前側に設け
た押え板収容溝14側に延び、ここでバンド状のゴム板
からなる押え板15により押えられ、かつ網体先端部1
2aを接着剤により押え板15の幅方向ほぼ半分位置ま
で接着し、残りの押え板15を押え板収容溝14に接着
剤16により接着している。The resin adhesive impregnated body 11 is covered with a net 12 such as a gauze in the accommodating groove 10.
One end of 2 is fixed by a flat iron wire 13 at a deep portion of the accommodation groove 10, and the other end extends toward the holding plate accommodation groove 14 provided on the front side in the insertion direction of the resin layer 7, where it is formed from a band-shaped rubber plate. The holding member 15 is pressed by
2a is adhered to an almost half position in the width direction of the holding plate 15 with an adhesive, and the remaining holding plate 15 is adhered to the holding plate accommodation groove 14 with an adhesive 16.
【0012】上記ダクトスリーブ5に対する樹脂層7の
被着は予め行っておき、含浸体収容溝10への樹脂接着
剤含浸体11の収容、および含浸体11の網体12によ
る被覆、網体12のなまし鉄線13による固定、押え板
収容溝14での押え板15にに対する網体先端部12a
の接着、押え板15の接着剤16による収容溝14への
接着,押え作業、抵抗板8,9の選択等は工事現場で行
ってもよいものである。The resin layer 7 is applied to the duct sleeve 5 in advance, the resin adhesive impregnated body 11 is accommodated in the impregnated body accommodating groove 10, and the impregnated body 11 is covered with the mesh 12, Fixing by slanted iron wire 13, mesh tip 12a against holding plate 15 in holding plate receiving groove 14
The bonding of the holding plate 15, the bonding of the holding plate 15 to the accommodating groove 14 by the adhesive 16, the holding operation, the selection of the resistance plates 8, 9 and the like may be performed at the construction site.
【0013】上記のような構成において、ダクト増設口
の施工に当っては、図5に示すように、まずマンホール
1の増設予定スペース3に貫通孔4を開ける。次に、ダ
クトスリーブ5に図1ないし図4に示すように樹脂層7
を被着し、その外周に抵抗板8,9を装着し、含浸体収
容溝10に樹脂接着剤含浸体11を収容し、さらに含浸
体11を網体12により被覆する。網体12の一端を収
容溝10の深い部分でなまし鉄線13により固定し、そ
の他端を押え板収容溝14側に延出させて押え板15に
先端部12aを接着し、押え板15を収容溝14に接着
剤16より接着する。そして、その状態で継手部6を前
にして貫通孔4に挿通し、抵抗板8,9を弾性変形させ
ながら木ハンマー等で端部を叩打してマンホール1の壁
面の面位置まで挿入する。この状態でダクトスリーブ5
および樹脂層7は、抵抗板8,9により貫通孔4に対し
周方向に均等に支持されて、ダクトスリーブ5は安定よ
く、しかも強固に支持される。In the construction as described above, in constructing the duct addition opening, first, as shown in FIG. 5, a through hole 4 is opened in the space 3 where the manhole 1 is to be added. Next, as shown in FIG. 1 to FIG.
And the resistance plates 8 and 9 are mounted on the outer periphery thereof, the resin adhesive impregnated body 11 is accommodated in the impregnated body accommodating groove 10, and the impregnated body 11 is further covered with the net 12. One end of the net body 12 is fixed by an annealing iron wire 13 at a deep portion of the accommodation groove 10, and the other end is extended to the holding plate accommodation groove 14 side, and the tip 12 a is bonded to the holding plate 15, and the holding plate 15 is attached. The adhesive 16 is adhered to the accommodation groove 14. Then, in this state, the joint portion 6 is inserted into the through hole 4 with the resistance plates 8 and 9 elastically deformed, and the ends are beaten with a wooden hammer or the like to insert the manhole 1 to the wall surface. In this state, the duct sleeve 5
The resin layer 7 is uniformly supported in the circumferential direction with respect to the through hole 4 by the resistance plates 8 and 9, and the duct sleeve 5 is stably and firmly supported.
【0014】従って、ダクトスリーブ5を貫通孔4に嵌
挿した状態で、ダクトスリーブ5の継手部6に図5に示
すように、鋼管または塩化ビニール管等の管路2を接続
し、管路布設後その管路2に通信ケーブル等を挿通する
作業を連続して行うことが可能となる。Therefore, with the duct sleeve 5 inserted into the through hole 4, the pipe 2 such as a steel pipe or a vinyl chloride pipe is connected to the joint 6 of the duct sleeve 5 as shown in FIG. After the installation, the operation of inserting a communication cable or the like into the pipeline 2 can be continuously performed.
【0015】また、含浸体収容溝10に収容された樹脂
接着剤含浸体11は、収容溝10がダクトスリーブ5,
樹脂層7の貫通孔4への嵌挿方向に対し、前方が浅く後
方が深くなるテーパ面を形成しているので、ダクトスリ
ーブ5の嵌挿時に、後方の深い溝面によって含浸体11
の移動が阻止され、含浸体11が収容溝10から後方に
脱出しない。また、含浸体11は、網体12により外側
が被覆され、網体12の前側が押え板収容溝14内で押
え板15に接着されて押えられ、さらに、網体12の後
端が収容溝10内においてなまし鉄線13により固定さ
れているので、ダクトスリーブ5の嵌挿時に含浸体11
は網体12および押え板15の伸縮によって収容溝10
から移動することなく保持される。そして、含浸体11
に含浸されている樹脂接着剤は、所定位置で経時的に硬
化して貫通孔4と樹脂層層7とを強固に接着し、硬化し
た含浸体11により、マンホール1内への漏水が防止さ
れる。The resin adhesive impregnated body 11 accommodated in the impregnated body accommodating groove 10 has the accommodating groove 10 having the duct sleeve 5,
Since the tapered surface is formed such that the front is shallow and the rear is deep with respect to the direction in which the resin layer 7 is inserted into the through hole 4, the impregnating body 11 is formed by the deep groove at the rear when the duct sleeve 5 is inserted.
Is prevented, and the impregnated body 11 does not escape backward from the accommodation groove 10. Further, the impregnated body 11 is covered with a mesh body 12 on the outside, the front side of the mesh body 12 is adhered to the holding plate 15 in the holding plate housing groove 14 and held down, and the rear end of the mesh body 12 is held in the housing groove. 10 is fixed by the annealed iron wire 13 so that the impregnated body 11
Is formed by the expansion and contraction of the mesh body 12 and the holding plate 15.
It is kept without moving from. And the impregnated body 11
The resin adhesive impregnated in the resin is hardened over time at a predetermined position to firmly adhere the through hole 4 and the resin layer layer 7, and the cured impregnated body 11 prevents water from leaking into the manhole 1. You.
【0016】上記押え板収容溝14,押え板15に代え
て、図7に示すゴムリング収容溝17を形成し、この収
容溝17に網体12の前端部を収容してゴムバンド18
により押えるようにしてもよいものである。A rubber ring housing groove 17 shown in FIG. 7 is formed in place of the holding plate housing groove 14 and the holding plate 15, and the front end of the net 12 is housed in the housing groove 17 and a rubber band 18 is provided.
It may be made to be held down by pressing.
【0017】この場合には、ゴムバンド18による網体
12の押圧力が、上記実施例の押え板15よりやや劣る
が、実用に供し得るものである。In this case, the pressing force of the rubber band 18 on the mesh body 12 is slightly inferior to the pressing plate 15 of the above embodiment, but it can be put to practical use.
【0018】[0018]
【発明の効果】以上詳述したように、本発明のマンホー
ルの増設口用ダクトスリーブによれば、以下の効果を奏
することができる。As described above, according to the duct sleeve for additional manhole opening of the present invention, the following effects can be obtained.
【0019】ダクトスリーブの外周に、ダクトスリーブ
の嵌挿方向に対し前方が浅く後方が深くなるテーパ面を
形成した所定幅の含浸体収容溝を形成したので、ダクト
スリーブを貫通孔へ嵌挿する際、含浸体が深い溝面によ
り移動が阻止されて収容溝内に収容された状態で樹脂接
着剤を硬化させ、ダクトスリーブを貫通孔に確実に接着
させる。また、含浸体が所定位置で硬化することによっ
て、ダクトスリーブの外周からマンホール内への漏水が
防止される。Since the impregnated body accommodating groove having a predetermined width is formed on the outer periphery of the duct sleeve and has a tapered surface that is shallow in the front and deep in the rear with respect to the insertion direction of the duct sleeve, the duct sleeve is inserted into the through hole. At this time, the movement of the impregnated body is prevented by the deep groove surface and the resin adhesive is cured in a state of being housed in the housing groove, and the duct sleeve is securely bonded to the through hole. Further, since the impregnated body is hardened at a predetermined position, water leakage from the outer periphery of the duct sleeve into the manhole is prevented.
【0020】収容溝に収容した樹脂接着剤含浸体を網体
により被包したので、ダクトスリーブを貫通孔に嵌挿す
るときに網体の伸縮により含浸体が収容溝から移動する
のを阻止することができる。従って、含浸体は所定の位
置で硬化してダクトスリーブを貫通孔に接着させ、防水
効果も発揮する。Since the resin adhesive impregnated body accommodated in the accommodating groove is covered with the net, the impregnated body is prevented from moving from the accommodating groove by the expansion and contraction of the net when the duct sleeve is inserted into the through hole. be able to. Therefore, the impregnated body is hardened at a predetermined position to adhere the duct sleeve to the through hole, and also exhibits a waterproof effect.
【0021】網体を、ダクトスリーブの嵌挿方向前方に
おいて弾性体により押圧し、収容溝内において固定した
ので、ダクトスリーブを貫通孔に嵌挿するときに網体お
よび弾性体が伸縮して、含浸体が収容溝から移動するの
をより確実に阻止することができる。また、網体はダク
トスリーブを貫通孔に嵌挿する際の摩擦にも耐え樹脂接
着剤含浸体を保護することができる。Since the mesh body is pressed by the elastic body in the front of the duct sleeve in the insertion direction and is fixed in the accommodation groove, the mesh body and the elastic body expand and contract when the duct sleeve is inserted into the through hole. It is possible to more reliably prevent the impregnated body from moving from the accommodation groove. Further, the mesh body can withstand friction when the duct sleeve is inserted into the through hole, and can protect the resin adhesive impregnated body.
【図1】本発明の増設用ダクトスリーブの半断面側面図
である。FIG. 1 is a half sectional side view of an additional duct sleeve of the present invention.
【図2】図1のA部の拡大断面図である。FIG. 2 is an enlarged sectional view of a portion A in FIG.
【図3】図1のB矢視図である。FIG. 3 is a view taken in the direction of arrow B in FIG. 1;
【図4】要部の拡大断面図である。FIG. 4 is an enlarged sectional view of a main part.
【図5】本発明の増設用ダクトスリーブをマンホールに
開けた貫通孔に嵌挿した状態の側断面図である。FIG. 5 is a side sectional view showing a state in which the additional duct sleeve of the present invention is inserted into a through hole formed in a manhole.
【図6】既設マンホールの配管状態の概略側面図であ
る。FIG. 6 is a schematic side view of a piping state of an existing manhole.
【図7】本発明の他の実施例の部分断面図である。FIG. 7 is a partial cross-sectional view of another embodiment of the present invention.
1 マンホール 2 管路 3 増設予定スペース 4 貫通孔 5 ダクトスリーブ 6 継手部 7 樹脂層 8,9 抵抗板 10 含浸体収容溝 11 樹脂接着剤含浸体 12 網体 13 なまし鉄線 14 押え板収容溝 15 押え板 16 接着剤 17 ゴムバンド収容溝 18 ゴムバンド DESCRIPTION OF SYMBOLS 1 Manhole 2 Pipe line 3 Space to be added 4 Through hole 5 Duct sleeve 6 Joint part 7 Resin layer 8,9 Resistance plate 10 Impregnated body accommodating groove 11 Resin adhesive impregnated body 12 Net 13 Annealed iron wire 14 Pressing plate accommodating groove 15 Holding plate 16 Adhesive 17 Rubber band accommodation groove 18 Rubber band
フロントページの続き (72)発明者 高橋 満 東京都千代田区内幸町一丁目1番6号 日本電信電話株式会社内 (72)発明者 染川 啓二 東京都千代田区内幸町一丁目1番6号 日本電信電話株式会社内 (56)参考文献 特開 平2−311120(JP,A) (58)調査した分野(Int.Cl.6,DB名) F16L 41/02 E02D 29/12 F16L 5/02Continuing on the front page (72) Inventor Mitsuru Takahashi 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Inventor Keiji Somegawa 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Stock In-house (56) References JP-A-2-311120 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) F16L 41/02 E02D 29/12 F16L 5/02
Claims (3)
位に貫通孔を設け、この貫通孔に通信ケーブル等を挿通
するための配管を行うようにしたダクト増設口に、マン
ホール内側から外側に向け嵌挿してマンホールに固定す
る増設口用ダクトスリーブおいて、上記ダクトスリーブ
は、貫通孔内周面と対向する外周部分に、嵌挿方向に対
し前方が浅く後方が深くなるテーパ面を形成した所定幅
の樹脂接着剤含浸体の収容溝を形成したことを特徴とす
るマンホールの増設口用ダクトスリーブ。A through hole is provided at a predetermined portion of an existing underground structure such as a manhole, and a duct extension port through which a communication cable or the like is inserted is inserted from the inside of the manhole to the outside. In the duct sleeve for an additional opening to be inserted and fixed to a manhole, the duct sleeve has a tapered surface formed on the outer peripheral portion facing the inner peripheral surface of the through-hole so that the front is shallow and the rear is deep in the insertion direction. A duct sleeve for an additional opening of a manhole, wherein a receiving groove for a resin adhesive impregnated body having a width is formed.
向する外周部分に収容溝を形成し、この収容溝に樹脂接
着剤含浸体を収容すると共に、該含浸体を網体により被
包するようにしたことを特徴とする請求項1記載のマン
ホールの増設口用ダクトスリーブ。2. A housing groove is formed in an outer peripheral portion of the duct sleeve facing the inner peripheral surface of the through hole, and a resin adhesive impregnated body is housed in the housing groove, and the impregnated body is encapsulated by a net. The duct sleeve for an additional opening of a manhole according to claim 1, wherein
前方において弾性体により押圧し、収容溝内において固
定するようにしたことを特徴とする請求項1または2記
載のマンホールの増設口用ダクトスリーブ。3. The manhole extension opening according to claim 1, wherein the mesh body is pressed by an elastic body in the front of the duct sleeve in the insertion direction and fixed in the accommodation groove. Duct sleeve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2417597A JP2832286B2 (en) | 1990-12-28 | 1990-12-28 | Duct sleeve for manhole extension |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2417597A JP2832286B2 (en) | 1990-12-28 | 1990-12-28 | Duct sleeve for manhole extension |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04249696A JPH04249696A (en) | 1992-09-04 |
JP2832286B2 true JP2832286B2 (en) | 1998-12-09 |
Family
ID=18525681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2417597A Expired - Fee Related JP2832286B2 (en) | 1990-12-28 | 1990-12-28 | Duct sleeve for manhole extension |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2832286B2 (en) |
-
1990
- 1990-12-28 JP JP2417597A patent/JP2832286B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH04249696A (en) | 1992-09-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR102521249B1 (en) | Installable annular seal members for wall elements of offshore structures | |
JP2832286B2 (en) | Duct sleeve for manhole extension | |
JP4947786B2 (en) | Sewer pipe | |
JP2876347B2 (en) | Duct sleeve for manhole extension | |
JP2818807B2 (en) | Construction method of duct extension in manhole | |
JPH1030756A (en) | Manhole joint structure | |
JPH02203302A (en) | Method for laying optical cable | |
JP4620385B2 (en) | Propulsion pipe joint structure and pipe connection port and propulsion pipe connection method | |
JP7203776B2 (en) | Water stop structure construction method, wall penetrating member and sheet member for water stop structure construction | |
KR200272133Y1 (en) | waterproof packing ring | |
JPH09312924A (en) | Underground cable duct | |
JP2003009369A (en) | Sheathed wire anchoring device of long body | |
US20040020822A1 (en) | Conduit glue bag, conduit glue strips and methods for installing cable in sewer pipe | |
JP6788289B2 (en) | Foundation through-tube structure | |
JP3098160B2 (en) | Flexible structure pipeline | |
JP2001099390A (en) | Pipe joint part corrosion preventing structure | |
JP2017187053A (en) | Sleeve for wall through-hole | |
JPH11303111A (en) | Manhole joint and connecting structure of manhole joint | |
JP2984435B2 (en) | Duct sleeve for connecting underground conduit | |
JP3003096U (en) | spacer | |
JP3286617B2 (en) | Waterproof flexible joint for connecting information communication cable housing tube and handhole and method of mounting the same | |
US6530724B2 (en) | Method and system for replacing a damaged section of a channel to which an inserted part has previously been affixed | |
JP2001169449A (en) | Connection structure of underground duct and installation method | |
JP3142760B2 (en) | Connection structure between precast concrete perforated pipe and handhole member | |
JP3786979B2 (en) | Joint structure with manhole pipe and its construction method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |