JPS6085162A - Repairing of concrete structure - Google Patents
Repairing of concrete structureInfo
- Publication number
- JPS6085162A JPS6085162A JP19333683A JP19333683A JPS6085162A JP S6085162 A JPS6085162 A JP S6085162A JP 19333683 A JP19333683 A JP 19333683A JP 19333683 A JP19333683 A JP 19333683A JP S6085162 A JPS6085162 A JP S6085162A
- Authority
- JP
- Japan
- Prior art keywords
- crack
- concrete structure
- injection
- vacuum
- filler
- 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.)
- Pending
Links
Landscapes
- Working Measures On Existing Buildindgs (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明はコンクリート構造物の補修工法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for repairing concrete structures.
最近コンクリート構造物の亀裂が大きな問題になってき
ている。亀裂の原因としては骨材によるもの海砂による
ものとがあると云われているが、いずれにＬ７ても山砂
利、海砂を使用したコンクリート構造物が人指に作られ
ている。Cracks in concrete structures have recently become a major problem. It is said that the cracks are caused by aggregate or sea sand, but in both cases, L7 has a concrete structure made of mountain gravel and sea sand.
これらのコンクリート構造物に亀裂が発生することにな
ると大変な補修作業が盛装になってくることが予測され
る。If cracks occur in these concrete structures, it is predicted that extensive repair work will be required.
コンクリート構造物の亀裂（ひび害！ｌ Ｆ＋、 ）は
、内部を確かめることができないたぬ亀裂内部へ確実に
充填物を充填することが非常に難かしく、また充填がで
きるかどうかの保証はできない問題点がある。It is very difficult to reliably fill the inside of cracks in concrete structures (crack damage!l F+, ) where it is impossible to check the inside, and it is not possible to guarantee that filling will be possible. There is a problem.
従来−の充填物の注入工法は大きく分けて冒圧高速短時
間注入法と低圧低速長時間注入法の２通りであった。Conventional filling injection methods can be roughly divided into two types: high-pressure, high-speed, short-time injection and low-pressure, low-speed, long-time injection.
高圧高速短時間注入法は亀裂の入口附近の浅い箇所で充
填物が拡散し確実力注入ができないし、また、低圧低速
長時間注入法は熟練が必要であり、長時間のため作業性
が落ちてコヌト冒になる欠点があった。With the high-pressure, high-speed, short-time injection method, the filler diffuses in a shallow area near the entrance of the crack, making it impossible to reliably inject force, and the low-pressure, low-speed, long-term injection method requires skill and reduces work efficiency due to the long time. It had the disadvantage of being a blasphemy.
本発明は上記の事情に鑑みなされたものであって、その
目的とするところは、コンクリート構造物の亀裂内が所
定の負圧になった後に亀裂内に充填物を注入するように
して短時間に確実に亀裂の先端部まで充填物を充填し、
従来の充填物の注入法の欠点であった亀裂の入口附近の
浅い部所で充填物が拡散（確実な注入ができないこと、
熟練を必要とＥ一作業性が悪くコスト高に々ることを解
消することにある。The present invention has been made in view of the above circumstances, and its purpose is to inject a filler into the cracks for a short period of time after the cracks in the concrete structure have reached a predetermined negative pressure. Make sure to fill the filling material up to the tip of the crack.
The drawback of the conventional filling injection method was that the filling spreads in shallow areas near the crack entrance (reliable injection cannot be performed).
The purpose is to eliminate the need for skill, poor workability, and high costs.
以下、本発明を図面を参照［、て謂明する。図面中１は
コンクリート構造物であり、２はコンクリート構造物１
に発生しまた亀裂を示す、図面中３は真空ポンプであり
、真空ポンプ３の吸込側は真空タンク４の一方の接続口
５は管路６を介して接続Ｉ、である。真空ポンプ３の他
方の接続ロアａは管路７を介して切換弁５の一方の接続
口９に接続］、てあり、切換弁８の他方の接続口１ｏは
管路１１′を介【１．て充填物Ｂでめる注入液１２のタ
ンク１３に接続し、てあり、この′ｆ３′路Ｉｌｌ！コ
ック１４が設けである。切換弁８の他方の接続口１５は
接続管１６の一端が接続して梗）す、この接続管１６の
他端部には袋ナツト１７が設けて」）る。この接続管１
６Ｋｉｔ真空度計１８とコック１９とが設けである。ま
た真空タンク４には真空変針２０が設けである。Hereinafter, the present invention will be described with reference to the drawings. In the drawing, 1 is a concrete structure, 2 is a concrete structure 1
3 in the figure is a vacuum pump, and the suction side of the vacuum pump 3 is connected to one connection port 5 of the vacuum tank 4 through a conduit 6. The other connecting lower a of the vacuum pump 3 is connected to one connecting port 9 of the switching valve 5 via a pipe 7, and the other connecting port 1o of the switching valve 8 is connected to one connecting port 9 of the switching valve 5 via a pipe 11'. ．． is connected to the tank 13 of the infusion liquid 12 filled with the filling B, and this 'f3' path Ill! A cock 14 is provided. One end of a connecting pipe 16 is connected to the other connecting port 15 of the switching valve 8, and a cap nut 17 is provided at the other end of the connecting pipe 16. This connecting pipe 1
A 6Kit vacuum gauge 18 and a cock 19 are provided. Further, the vacuum tank 4 is provided with a vacuum change direction 20.
図面中２１は接手であり、この接手２１の端部には螺子
部２２が形成してＪ）す、１だ接手２１にはフランジ２
３が形成し、である。図面中２４はシールシートである
。In the drawing, 21 is a joint, and the end of this joint 21 is formed with a threaded part 22, and the joint 21 has a flange 2.
3 is formed and is. 24 in the drawing is a seal sheet.
次にコンク））−ト構造物の補修工法を説明する。Next, we will explain the repair method for concrete structures.
コンクリート構造物１の亀裂２にＶカットして注入口２
５を形成する。亀裂２ Ｋシール部材Ａと［７てのシー
ルシート２７１またはシール剤を貼るか塗る。シールシ
ート２４は亀裂２に合わせて貼ってもよい１２、面で亀
裂２全部を覆ってもよい。Make a V cut into the crack 2 of the concrete structure 1 and install the injection port 2
form 5. Crack 2 Apply or apply the seal sheet 271 or sealant on the K seal member A. The sealing sheet 24 may be applied along the crack 2 12 or may cover the entire crack 2 with a surface.
前記注入口２５に接手２１を増付けてフランジ２３でシ
ールシート２Ａを押え、この部分をシール剤でシールす
る。なお接手２１は亀裂２一単位、つまり表面で一個の
亀裂２（＠裟２が接続しているものを−とする）Ｋつき
１箇所以−ヒに働手２１を設けてもよい。A joint 21 is added to the injection port 25, a flange 23 is used to press the seal sheet 2A, and this part is sealed with a sealant. Note that the joint 21 may be provided with a worker 21 at one or more locations per crack 2 (the one where the joint 2 is connected is defined as -) on the surface.
接手２１の螺子部２２に接続管１６０袋ナツト１７を螺
合［２て接手２１に接続管１６を接続する。Connect the connecting tube 160 and the cap nut 17 to the threaded portion 22 of the joint 21 [2] to connect the connecting tube 16 to the joint 21.
このとき切換弁８を真空回路２６を遮断するように断の
位置に切換えておく。At this time, the switching valve 8 is switched to the OFF position so as to cut off the vacuum circuit 26.
次に、真空ポンプ３を駆動し１、真空タンクＡ内の圧力
を下げる。真空変針２０で指定の負圧まで円上が低下し
７たこと管読み、コック１９を接続位ｗにし、切換−弁
８を切換えて真空回路２６を１５１］ける。このために
亀裂２内の空気は真空タンク４内に吸引され亀裂２内は
負圧になる。Next, the vacuum pump 3 is driven 1 to lower the pressure inside the vacuum tank A. When the vacuum direction 20 is turned on, the pressure is lowered to the specified negative pressure, and the tube is read, the cock 19 is set to the connection position W, and the switching valve 8 is switched to turn on the vacuum circuit 26. For this reason, the air within the crack 2 is sucked into the vacuum tank 4, and the pressure inside the crack 2 becomes negative.
ぞして、真空変針１８が指定の負圧を示【１．たらコッ
ク１９管断の位ｆｔ ｖｃする。Then, the vacuum direction 18 indicates the specified negative pressure [1. Cod cock 19 ft vc.
コック１９を断の位置にし、てから真空変針１８の指針
が全く動かないかどうかを確認する。もし指針が動くよ
うであれば亀裂２のシールに不完全部分があることを意
味（２ており、この指針が完全に止るまで亀裂２のシー
ルを完全にする。After setting the cock 19 to the off position, check whether the pointer of the vacuum course 18 does not move at all. If the pointer moves, it means that there is an imperfection in the seal of crack 2 (2), and the pointer moves until it completely stops sealing crack 2.
真空変針１８の指針が完全に勤かなくなったらコック＋
４’、ｌ・９に接続位置にし切換弁８を切換えて注入液
回路２７を開ける。このために注入液は大気圧により亀
裂２に圧送され充填さｎる。When the vacuum needle 18 stops working completely, turn the cock +
4', l.9 to the connection position and switch the switching valve 8 to open the injection liquid circuit 27. For this purpose, the injection liquid is pumped under atmospheric pressure into the crack 2 and filled.
１１８３Ｆ１１＾ユｒ）釉仙−４嘉−小も１イ１＾イ健
山角２晶ζ１仁山の負圧になっておれば注入液は亀裂２
の先端まで充填される。1183F11^Yur) Glaze Sen-4 Ka-Komo 1 I1^i Kenzan Kaku 2 Crystal ζ1 If the negative pressure is in Jinzan, the injected liquid will crack 2
Filled to the tip.
本発明は以上詳述したように、コンクリート構造物Ｉの
亀裂２内をシール部材グによって外気から遮断【２、亀
裂２内を真空発生手段によって所定の負圧にした後に、
亀裂２内に充填物注入手段によって充填物Ｂ″ｌｒｌｒ
注入う［１，たことを特徴とするコンクリート構造物の
補修工法である。As described in detail above, the present invention isolates the inside of the crack 2 of the concrete structure I from the outside air using a sealing member.
Filler B″lrlr is inserted into crack 2 by filler injection means.
This is a repair method for concrete structures characterized by injection.
１５．たがって、コンクリート構造物１の亀裂２内が所
定の負圧になった後に亀裂２内に充填物が注入きれるた
めに、短時間に確実に亀裂２の先端部まで充填物を充填
することができる。15. Therefore, since the filler can be completely injected into the crack 2 after the inside of the crack 2 of the concrete structure 1 reaches a predetermined negative pressure, it is possible to reliably fill the filler to the tip of the crack 2 in a short time. can.
このため、従来の充填物の注入法の欠点であった亀裂の
入口附近の浅い箇所で充填物が拡散し確実な注入ができ
ないこと、熟練を必要とし作業性が悪くコスト高になる
ことが解消できる。This eliminates the disadvantages of conventional filling injection methods, such as the filling spreading in shallow areas near the crack entrance, making it impossible to perform reliable injection, and requiring skill, resulting in poor workability and high costs. can.
第１図はコンクリート構造物の亀裂とシール部材の説明
図、第２図は本発明工法に使用する真空発生充填物注入
装置の構成説明図である。
１はコンクリート構造物、２は亀裂、Ａはシール部材、
Ｂは充填物。
出願人 小松建設工業株式会社
代理人 弁理士 米 原 正 章
弁理士 浜 本 忠
第１図FIG. 1 is an explanatory diagram of cracks in a concrete structure and sealing members, and FIG. 2 is an explanatory diagram of the configuration of a vacuum generating filling injection device used in the construction method of the present invention. 1 is a concrete structure, 2 is a crack, A is a sealing member,
B is the filling. Applicant Komatsu Construction Industry Co., Ltd. Agent Patent attorney Masaaki Yonehara Patent attorney Tadashi Hamamoto Figure 1
Claims (1)
て外気から遮断［７、亀裂２内を真空発生手段によって
所定の負圧にした後に、亀裂２内に充填物注入手段によ
って充填物Ｂｆ注入するようにしたことを特徴とするコ
ンクリート構造物の補修工法。The inside of the crack 2 of the concrete structure 1 is isolated from the outside air by the sealing member AK [7. After the inside of the crack 2 is made to a predetermined negative pressure by the vacuum generating means, the filler Bf is injected into the crack 2 by the filler injection means. A repair method for concrete structures characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19333683A JPS6085162A (en) | 1983-10-18 | 1983-10-18 | Repairing of concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19333683A JPS6085162A (en) | 1983-10-18 | 1983-10-18 | Repairing of concrete structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6085162A true JPS6085162A (en) | 1985-05-14 |
Family
ID=16306196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19333683A Pending JPS6085162A (en) | 1983-10-18 | 1983-10-18 | Repairing of concrete structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6085162A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5273233A (en) * | 1991-02-04 | 1993-12-28 | Shimano, Inc. | Bail arm reversing mechanism |
-
1983
- 1983-10-18 JP JP19333683A patent/JPS6085162A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5273233A (en) * | 1991-02-04 | 1993-12-28 | Shimano, Inc. | Bail arm reversing mechanism |
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