JPH04169622A - Resin concrete manhole and process for reforming the same - Google Patents

Resin concrete manhole and process for reforming the same

Info

Publication number
JPH04169622A
JPH04169622A JP2296485A JP29648590A JPH04169622A JP H04169622 A JPH04169622 A JP H04169622A JP 2296485 A JP2296485 A JP 2296485A JP 29648590 A JP29648590 A JP 29648590A JP H04169622 A JPH04169622 A JP H04169622A
Authority
JP
Japan
Prior art keywords
manhole
opening
resin concrete
frame
manholes
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
Application number
JP2296485A
Other languages
Japanese (ja)
Other versions
JP2747568B2 (en
Inventor
Sakae Sugano
菅野 栄
Ryoetsu Domon
良悦 土門
Tsutomu Mishina
三品 勉
Hisao Sato
久夫 佐藤
Tomio Murano
村野 富男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHUO KOZAI KK
Nippon Telegraph and Telephone Corp
Original Assignee
CHUO KOZAI KK
Nippon Telegraph and Telephone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHUO KOZAI KK, Nippon Telegraph and Telephone Corp filed Critical CHUO KOZAI KK
Priority to JP2296485A priority Critical patent/JP2747568B2/en
Publication of JPH04169622A publication Critical patent/JPH04169622A/en
Application granted granted Critical
Publication of JP2747568B2 publication Critical patent/JP2747568B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

PURPOSE:To shorten the required time length, and reduce the expenditures, for a reforming construction, by integrally bonding one to the other of frames mounted to opposing side-wall opening sections provided with respect to first and second resin concrete manholes. CONSTITUTION:A ground portion corresponding to a newly installed manhole 2 is dug and a disposable concrete 10 is installed at the bottom by hammering. Next, an opening is formed in a side wall of an already installed manhole 1, and a steel-plate made frame 4 is mounted around the opening. Subsequently, a factory-made resin concrete manhole 2 (having a frame 4 at its side-wall opening) which is previously formed with a side-wall opening section 3 is disposed on the disposable concrete 10 so that its side-wall opening may be in conformity with that of the manhole 1. Then, the respective frames 4 of both the manholes are bolted together. Further, an adhesive agent is flown between joining wall surfaces of both the manholes 1, 2, onto joining portions of the frames, and between the bolt holes in each frame and the bolts used, thereby firmly bonding both together.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は地中レジンコンクリート製マンホール及びフレ
ームの補強による改造工法に関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an underground resin concrete manhole and a method of remodeling the manhole by reinforcing the frame.

(従来の技術) 通信土木設備を構成する管路設備はほとんどが道路下に
設置されており、この中マンホールの設置数の中、約1
5%強がレジンコンクリートマンホールが用いられ、そ
の数は年々増加の傾向にある。この理由は、レジンコン
クリートマンホールは従来のセメントコンクリートマン
ホールより機械的強度が高く、作業が容5であり、長期
にわたって道路を占有する必要が少ないためである。こ
れは一般にセメントコンクリートマンホールの如き養生
の必要がないためである。
(Conventional technology) Most of the conduit facilities that make up communication civil engineering equipment are installed under roads, and approximately one of the number of manholes installed is
Over 5% of manholes use resin concrete manholes, and the number is increasing year by year. The reason for this is that resin concrete manholes have higher mechanical strength than conventional cement concrete manholes, require less work, and require less occupation of roads for long periods of time. This is because there is generally no need for curing as with cement concrete manholes.

(発明が解決しようとする課B) しかしながら、道路改良等の移転要請に対しては、レジ
ンコンクリートマンホールの場合、普通はマンホール全
部を撤去し、新たに別の場所に新設する方法が用いられ
ている。
(Question B that the invention seeks to solve) However, in the case of resin concrete manholes, in response to relocation requests for road improvements, etc., the method usually used is to remove the entire manhole and construct a new one in a different location. There is.

これを第4図について説明すると、図においてbは車道
、Cは歩道で、マンホールaが歩道Cに設けられている
場合、車道すを距離dの位置まで拡げるためには、既設
地中レジンコンクリート製マンホールaの人出口fが支
障となり、計画歩道eのfo の位置にマンホールを移
設することが必要であり、この場合、現工法では、既設
地中レジンコンクリート製マンホールaを解体・撤去し
、マンホールa内の通信ケーブル等を抱き込み、新たに
fo の位置が人出口となる現場打ちのセメントコンク
リート製マンホールを打設している。
To explain this with reference to Figure 4, in the figure, b is a roadway, C is a sidewalk, and if manhole a is installed on sidewalk C, in order to widen the roadway to a distance d, it is necessary to use the existing underground resin concrete. The manhole exit f of manhole a becomes a hindrance, and it is necessary to relocate the manhole to position fo on planned walkway e. In this case, with the current construction method, the existing underground resin concrete manhole a is dismantled and removed; A new cast-in-place cement-concrete manhole is being installed to enclose communication cables, etc. inside manhole a, and position fo will serve as the exit for people.

本発明は上記の煩雑な作業を改善するために提案された
もので、その目的とする点は、道路管理者等からの移設
要請や設備の増築に対して、既設地中レジンコンクリー
ト製マンホールを解体・撤去して、新たに、現場打ちの
セメントコンクリート製マンホールを設置する必要を取
り除き、地中レジンコンクリート製マンホール及び鋼板
製のフレームの補強によるレジンコンクリートマンホー
ルの改造工法を提供することにある。
The present invention was proposed in order to improve the above-mentioned complicated work, and its purpose is to replace existing underground resin concrete manholes in response to requests for relocation from road administrators, etc., and expansion of equipment. To provide a method for remodeling an underground resin concrete manhole by reinforcing an underground resin concrete manhole and a frame made of steel plates, eliminating the need for dismantling and removing the manhole and installing a new cast-in-place cement concrete manhole.

(課題を解決するための手段) 上記の目的を達成するため本発明は、側壁に形成された
開口部に、フレームが接着されている第1のレジンコン
クリートマンホールと、同様に側壁に形成された開口部
に、フレームが接着されている第2のレジンコンクリー
トマンホールとが、互いに夫々の開口部のフレーム相互
が、一体に結合されていることを特徴とするレジンコン
クリートマンホールを発明の要旨とするものである。
(Means for Solving the Problems) In order to achieve the above object, the present invention provides a first resin concrete manhole in which a frame is bonded to an opening formed in a side wall; The gist of the invention is a resin concrete manhole characterized in that a second resin concrete manhole has a frame bonded to the opening, and the frames of the respective openings are integrally connected to each other. It is.

さらに本発明は、第1のレジンコンクリートマンホール
の側壁に開口部を形成し、この開口部にフレームを接着
する工程と、予め開口部が形成されている第2のレジン
コンクリートマンホールの開口部にフレームを接着する
工程と、前記の両レジンコンクリートマンホールの開口
部に取付られたフレームを互いに当接し、一体化する工
程とを備えることを特徴とするレジンコンクリートマン
ホールの改造工法を発明の要旨とするものである。
Furthermore, the present invention includes a step of forming an opening in the side wall of the first resin concrete manhole and gluing a frame to this opening, and a step of adhering the frame to the opening of the second resin concrete manhole in which the opening has been formed in advance. The gist of the invention is a method for remodeling a resin concrete manhole, which comprises the steps of gluing the frames attached to the openings of both resin concrete manholes, and bringing the frames attached to the openings of both resin concrete manholes into contact with each other to integrate them. It is.

(作用) 本発明は既設のレジンコンクリートマンホールの改造を
容易に行いうるために、従来のようにレジンコンクリー
トマンホールの解体・撤去し、新たに現場打ちのマンホ
ールを設置する必要がないため、工期の短縮を図るキー
共に、費用の節減を大幅に図ることができる。
(Function) Since the present invention allows for easy modification of existing resin concrete manholes, it is not necessary to dismantle and remove the resin concrete manholes and install new cast-in-place manholes as in the past, thereby reducing the construction period. Together with the key to shortening the time, it is possible to achieve significant cost savings.

(実施例) 次に本発明の実施例について説明する。なお、実施例は
一つの例示であって、本発明の精神を逸脱しない範囲で
、種々の変更あるいは改良を行いうろことは言うまでも
ない。
(Example) Next, an example of the present invention will be described. It should be noted that the embodiments are merely illustrative, and it goes without saying that various changes and improvements may be made without departing from the spirit of the present invention.

第1図は既設マンホール及び新設マンホールの平面図を
示し、第2図は第1図においてA−A’線に沿う断面図
、第3図は第1図においてB−B’線に沿う断面図を示
す、     ′ 図において、1は既設マンホール(第1・のマンホール
)、1aはこのマンホールに設けられた人出口(工事終
了後はレジンコンクリート製のl1lbによって、この
人出口は閉塞される)、2は新設のマンホール(第2の
マンホール)で、3は開口部、4は鋼板製のフレームで
、マンホール1及び2の開口部に接着剤で接着して結合
される。
Figure 1 shows a plan view of an existing manhole and a new manhole, Figure 2 is a sectional view taken along line AA' in Figure 1, and Figure 3 is a sectional view taken along line BB' in Figure 1. ' In the figure, 1 is the existing manhole (the first manhole), 1a is the person exit provided in this manhole (after the construction is completed, this person exit will be blocked by resin concrete l1lb), 2 is a newly installed manhole (second manhole), 3 is an opening, and 4 is a frame made of a steel plate, which is bonded to the openings of manholes 1 and 2 with adhesive.

6はマンホール1及び2の接合面であり、7゜8は接合
面壁を示す。10は捨てコンクリートである。これによ
って新設のレジンコンクリートマンホール2の沈下を防
止する。
6 is the joint surface of manholes 1 and 2, and 7° 8 is the joint surface wall. 10 is waste concrete. This prevents the newly constructed resin concrete manhole 2 from sinking.

さらに詳しく説明すると次のようである。開口部3は人
間等の人出に支障とならない大きさで、位置はレジンコ
ンクリート製マンホール壁の開口した残りの断面で荷重
に抵抗できる位置とする。
A more detailed explanation is as follows. The opening 3 has a size that does not interfere with the passage of people, etc., and is located at a position where the remaining open section of the resin concrete manhole wall can resist the load.

開口部3を補強する鋼板製のフレーム4は開口部3を囲
む形状で既設及び新設レジンジンクリート製マンホール
に夫々接着剤で接合され、レジンコンクリートとの合成
桁として耐荷力の向上を図り、かつ、開口部隅角部に働
く応力集中によるひび割れを防止している。
A steel plate frame 4 that reinforces the opening 3 is shaped to surround the opening 3 and is bonded to the existing and new resin-crete manholes with adhesive, and is used as a composite girder with resin concrete to improve load-bearing capacity. This prevents cracks caused by stress concentration acting on the corners of the opening.

フレームのボトル孔と表面凹凸の付いたポルト5の隙間
は、ボルト及びナツトの締付は圧力により接着剤で完全
に充填される。また、接着剤が外へ漏れても接着剤の粘
着力が大きいため加圧状態で固化し、ボルトの締付は時
の導入張力は接着剤の固化時まで、維持されるのでナツ
トが緩むことはない、更にボルト孔とボルト5の接する
面は、2重ナンドで密着されているので、せん断力は確
実にフレーム4に伝達される。以上のことよりボルトは
既設及び新設レジンコンクリート製マンホールの接合を
分離させようとする荷重に抵抗できる。
The gap between the bottle hole of the frame and the port 5, which has an uneven surface, is completely filled with adhesive by the pressure applied when the bolt and nut are tightened. In addition, even if the adhesive leaks out, it will solidify under pressure due to its strong adhesive strength, and the tension introduced when tightening the bolt will be maintained until the adhesive hardens, so the nut will not loosen. Furthermore, since the contact surfaces of the bolt holes and the bolts 5 are tightly bonded with double NANDs, the shearing force is reliably transmitted to the frame 4. From the above, the bolts can resist the load that attempts to separate the joint between the existing and new resin concrete manholes.

接合面6は接合面全体を接着剤にて接合され、止水効果
を図っている。
The entire joint surface 6 is joined with an adhesive to achieve a water-stopping effect.

新設レジンコンクリート製マンホール接合面壁厚8を、
既設壁厚7よりも厚くし、これらが一体となって、開口
部残りの断面で荷重に抵抗している。
Newly installed resin concrete manhole joint wall thickness 8,
It is made thicker than the existing wall thickness 7, and together they resist the load in the remaining cross section of the opening.

次に改造作業の順序について説明する。Next, the order of modification work will be explained.

新設マンホール2の側面には予め開口部3が形成されて
いるレジンコンクリートマンホールを用い、このマンホ
ールは予め工場で生産されたものを用いる。マンホール
2を設置する部分には穴を掘り、底の部分に予め捨コン
クリート10を打って固化させておく。
A resin concrete manhole with an opening 3 formed in advance on the side surface of the new manhole 2 is used, and this manhole is manufactured in advance at a factory. A hole is dug in the area where the manhole 2 is to be installed, and concrete 10 is poured into the bottom part in advance to harden it.

次に既設マンホール1の側面の壁に開口部をドリル・カ
ッター等を用いて形成し、この開口部の周囲に枠状の形
状の鋼板製のフレーム4を接着剤で接合する。
Next, an opening is formed in the side wall of the existing manhole 1 using a drill, cutter, etc., and a frame 4 made of a steel plate having a frame-like shape is bonded around the opening with adhesive.

ついで捨てコンクリート10の上に工場製のレジンコン
クリートマンホール2 (開口部にはフレーム4を接着
剤で接合しておいたものを用いる)をマンホール1と2
の開口部が合うように配置し、両マンホール1と2の開
口部に取付けたフレーム4を、表面に凹凸の設けられた
ボルト5を挿通し、このボルトを締め付けることによっ
て両フレームを一体に結合し、かつ両マンホール1.2
の接合面壁7,8を接着剤を用いて一体に結合する。ま
た開口部3を除いてフレーム4の接合部及び型枠のボル
ト穴とボルトとの間に接着剤を流し込んで、両者を堅固
に結合する。
Next, factory-made resin concrete manholes 2 (frames 4 bonded with adhesive are used for the openings) are placed on top of the waste concrete 10, manholes 1 and 2.
A frame 4 is attached to the openings of both manholes 1 and 2, and a bolt 5 with an uneven surface is inserted into the frame 4, and both frames are joined together by tightening this bolt. and both manholes 1.2
The joining surface walls 7 and 8 of are joined together using an adhesive. Furthermore, adhesive is poured between the joints of the frame 4 except for the openings 3 and between the bolt holes and bolts of the formwork to firmly connect the two.

上記の作業を行うことによって改造工法は終了する。The modification method is completed by performing the above work.

(発明の効果) 本発明は畝上のように、既設レジンコンクリートマンホ
ールの側壁に開口部を形成すると共に、この開口部にフ
レームを一体に取り付け、さらに新設すべきレジンコン
クリートマンホールの側壁に取り付けたフレームとをボ
ルト及び接着剤により一体に結合することによって、従
来のように既設マンホールの解体・撤去にかかる期間及
び現場打ちするセメントコンクリート製マンホールの鉄
筋組立等、更にこれの養生に期間を要することがなく、
工期を短縮することができると共に工事費の節約を図り
うる効果を有する。
(Effects of the Invention) The present invention forms an opening in the side wall of an existing resin concrete manhole like a ridge, attaches a frame integrally to this opening, and further attaches it to the side wall of a new resin concrete manhole. By integrally joining the frame with bolts and adhesive, it takes time to dismantle and remove the existing manhole, assemble reinforcing bars for cement-concrete manholes that are cast on site, and also takes time to cure. There is no
This has the effect of shortening the construction period and saving construction costs.

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

第1図乃至第3図は本発明のレジンコンクリートマンホ
ールを示すもので、第1図は平面図、第2図及び第3図
は夫々第1図においてA−A’ 線、B−B’ 線に沿
う断面図、第4図はマンホールの移設についての説明図
を示す。 1・・・・・マンホール 1a・・・・人出口 1 b  −・ ・蓋 2・・・・・マンホール 2a・・・・人出口 3・・・・・開口部 4・・・・・フレーム 5・・・・・ボルト 6・・・・・接合面 7.8・・・接合面壁 10・・・ ・I舎でコンクリート 第3図
Figures 1 to 3 show the resin concrete manhole of the present invention. Figure 1 is a plan view, and Figures 2 and 3 are taken along line AA' and line BB' in Figure 1, respectively. FIG. 4 shows an explanatory diagram of the relocation of the manhole. 1... Manhole 1a... Person exit 1 b - Lid 2... Manhole 2a... Person exit 3... Opening 4... Frame 5 ... Bolt 6 ... Joint surface 7.8 ... Joint surface wall 10 ... - Concrete in I building Fig. 3

Claims (2)

【特許請求の範囲】[Claims] (1)側壁に形成された開口部に、鋼板製のフレームが
接着されている第1のレジンコンクリートマンホールと
、同様に側壁に形成された開口部に、フレームが接着さ
れている第2のレジンコンクリートマンホールとが、互
いに夫々の開口部のフレーム相互が、一体に結合されて
いることを特徴とするレジンコンクリートマンホール。
(1) A first resin concrete manhole in which a steel plate frame is glued to an opening formed in the side wall, and a second resin concrete manhole in which a frame is similarly glued to an opening formed in the side wall. A resin concrete manhole characterized in that the frames of each opening of the concrete manhole are integrally connected to each other.
(2)(イ)第1のレジンコンクリートマンホールの側
壁に開口部を形成し、この開口部にフレームを接着する
工程と、 (ロ)予め開口部が形成されている第2のレジンコンク
リートマンホールの開口部にフレームを接着する工程と
、 (ハ)前記の両レジンコンクリートマンホールの開口部
に取付られたフレームを互いに当接し、両フレームを一
体化する工程とを備えることを特徴とするレジンコンク
リートマンホールの改造工法。
(2) (a) Forming an opening in the side wall of the first resin concrete manhole and gluing a frame to this opening, and (b) forming the second resin concrete manhole in which the opening has been previously formed. A resin concrete manhole comprising: a step of gluing a frame to the opening; and (c) a step of bringing the frames attached to the openings of both resin concrete manholes into contact with each other to integrate both frames. remodeling method.
JP2296485A 1990-11-01 1990-11-01 Resin concrete manhole and its modification method Expired - Fee Related JP2747568B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2296485A JP2747568B2 (en) 1990-11-01 1990-11-01 Resin concrete manhole and its modification method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2296485A JP2747568B2 (en) 1990-11-01 1990-11-01 Resin concrete manhole and its modification method

Publications (2)

Publication Number Publication Date
JPH04169622A true JPH04169622A (en) 1992-06-17
JP2747568B2 JP2747568B2 (en) 1998-05-06

Family

ID=17834168

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2296485A Expired - Fee Related JP2747568B2 (en) 1990-11-01 1990-11-01 Resin concrete manhole and its modification method

Country Status (1)

Country Link
JP (1) JP2747568B2 (en)

Also Published As

Publication number Publication date
JP2747568B2 (en) 1998-05-06

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