JPH0237876Y2 - - Google Patents
Info
- Publication number
- JPH0237876Y2 JPH0237876Y2 JP3406985U JP3406985U JPH0237876Y2 JP H0237876 Y2 JPH0237876 Y2 JP H0237876Y2 JP 3406985 U JP3406985 U JP 3406985U JP 3406985 U JP3406985 U JP 3406985U JP H0237876 Y2 JPH0237876 Y2 JP H0237876Y2
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- tightening force
- joint
- waterproof rubber
- new
- 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
- 239000000463 material Substances 0.000 claims description 6
- 238000004078 waterproofing Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 230000008602 contraction Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案はコンクリートケーシングポンプ、各種
コンクリート製水理構造物等における新旧コンク
リート打継部の防水装置に係るものである。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a concrete casing pump, a waterproofing device for a joint between old and new concrete in various concrete hydraulic structures, etc.
（従来の技術）
第４図は揚排水機場に使用される一般的なコン
クリートケーシングポンプの水路断面形状を示
し、１は１次コンクリートと呼ばれるポンプ建
屋、２は２次コンクリートと呼ばれるポンプ室水
路で、通常１次コンクリート１打設後、数年経過
して設置される。なお図中３は揚排水時の水の流
れを示す。(Prior art) Figure 4 shows the cross-sectional shape of the waterway of a general concrete casing pump used in pumping stations, where 1 is the pump building called primary concrete, and 2 is the pump room waterway called secondary concrete. , usually installed several years after the first concrete pouring. Note that 3 in the figure shows the flow of water during pumping and discharging.
（考案が解決しようとする問題点）
一般に新旧コンクリートの打継部の強度は低
く、当然止水性も不良であり、コンクリートケー
シングポンプにおいても第５図に示すように、１
次コンクリート１の打継面に差筋４を施しておく
か、第６図に示すように接着材５を塗布したのち
２次コンクリート２を打設するが、コンクリート
は硬化時に収縮するため、１次コンクリート１と
２次コンクリート２との間に間〓が生じることは
避けられず、第８図の矢印６に示すように漏水が
しばしば生起する。(Problems to be solved by the invention) In general, the strength of the joint between old and new concrete is low, and naturally the water-stopping properties are also poor.As shown in Figure 5, concrete casing pumps also have
The secondary concrete 2 is poured after applying reinforcing bars 4 to the joint surface of the next concrete 1 or applying an adhesive 5 as shown in Fig. 6, but since concrete shrinks when it hardens, the first It is inevitable that a gap will occur between the secondary concrete 1 and the secondary concrete 2, and water leakage often occurs as shown by arrow 6 in FIG. 8.
このため第７図に示すように１次コンクリート
１と２次コンクリート２とに亘つて止水板７を設
けることがあるが、この場合１次コンクリート１
自体の斫り作業を必要とし、どこまで斫つても新
旧コンクリート間の打継目が存在し、信頼性に乏
しく、コストも高い。 For this reason, as shown in Fig. 7, a water stop plate 7 may be provided between the primary concrete 1 and the secondary concrete 2;
It requires its own scooping work, and no matter how far it is scooped, there are seams between the old and new concrete, making it unreliable and expensive.
（問題点を解決するための手段）
本考案はこのような問題点を解決するために提
案されたものであつて、新旧コンクリートの打継
部に介装された弾性止水材と、同止水材に対する
初期締付力賦与並に同締付力解放装置とよりなる
ことを特徴とする新旧コンクリート打継部の防水
装置に係るものである。(Means for Solving the Problems) The present invention was proposed to solve these problems, and it uses an elastic water-stopping material interposed at the joint between old and new concrete, and the same stopper. This invention relates to a waterproofing device for a joint between old and new concrete, which is characterized by comprising an initial tightening force imparting to water material and a tightening force releasing device.
（作用）
本考案は前記したように構成されているので、
既設のコンクリート部を打設してその硬化後、同
既設コンクリートの打設面の所定位置にゴム板等
の弾性止水板を設置し、前記初期締付力賦与並に
同締付力解放装置によつて前期弾性止水板に初期
締付力を賦与して収縮させておき、新設コンクリ
ートを打設してその硬化後、前記装置によつて前
記弾性止水板に賦与して初期締付力を解放する
と、同弾性止水板は収縮状態より伸長してコンク
リートの収縮によつて生じた〓間を満たし、新旧
両コンクリート間に密着して新旧コンクリートの
打継面を確実に止水するものである。この際前記
弾性止水片に対して十分な締付力を与えておく
と、同弾性止水片に押圧力が残存し、新設コンク
リートに対する高い密着性が保持される。(Function) Since the present invention is constructed as described above,
After pouring the existing concrete and hardening, an elastic water stop plate such as a rubber plate is installed at a predetermined position on the pouring surface of the existing concrete, and the initial tightening force is applied and the tightening force release device is installed. The device applies an initial tightening force to the elastic water stop plate to cause it to contract, and after pouring new concrete and hardening it, the device applies an initial tightening force to the elastic water stop plate for initial tightening. When the force is released, the elastic water stop plate expands from its contracted state, fills the gap created by the contraction of the concrete, and comes into close contact between the old and new concrete, ensuring a water stop at the joint surface between the old and new concrete. It is something. At this time, if a sufficient tightening force is applied to the elastic water-stopping piece, a pressing force will remain on the elastic water-stopping piece, and high adhesion to the new concrete will be maintained.
（考案の効果）
このように本考案によれば既設のコンクリート
に加工を施すことなく、既設コンクリート部と新
設コンクリート部との打継部からの漏水を確実に
防止しうるものである。(Effects of the invention) As described above, according to the invention, water leakage from the joint between the existing concrete part and the new concrete part can be reliably prevented without processing the existing concrete.
（実施例）
以下本考案をコンクリートケーシングポンプの
１次コンクリート２次コンクリートとの間の防水
に適用した図示の実施例について説明する。(Embodiment) The illustrated embodiment in which the present invention is applied to waterproofing between primary concrete and secondary concrete of a concrete casing pump will be described below.
１１は１次コンクリート、１２は同１次コンク
リート１１に打継がれる２次コンクリート、１３
は１次コンクリート１１の打設硬化後、その打継
面に配設された前記弾性止水材を構成する防水ゴ
ムで、同防水ゴム１３に初期締付力を賦与するた
めの載荷板１４及び同載荷板１４に一端が連結さ
された締付螺桿１５を挿入するための穴１６が設
けられている。前記締付螺桿１５の他端ねじ部と
反力支持リング１７に固着された螺桿１８とに亘
つてターンバツクル１９が螺装され、同ターンバ
ツクル１９を正逆両方向に螺回することによつて
締付螺桿１５、載荷板１４を介して防水ゴムに初
期締付力を賦与し、或いは同締付力を解放するよ
うに構成されている。而して前記載荷板１５、締
付螺桿１６、ターンバツクル１９、螺桿１８及び
反力支持リング１７によつて前述の弾性止水材に
対する初期締付力賦与、並に同締付力解放装置が
構成されている。 11 is primary concrete, 12 is secondary concrete to be poured into the same primary concrete 11, 13
after the primary concrete 11 has been placed and hardened, is a waterproof rubber constituting the elastic water-stopping material that is placed on the joint surface of the primary concrete 11, and includes a loading plate 14 and a loading plate 14 for imparting an initial tightening force to the waterproof rubber 13; A hole 16 is provided in the loading plate 14 for inserting a tightening screw 15 connected to one end thereof. A turnbuckle 19 is threaded across the threaded portion of the other end of the tightening screw 15 and a screw rod 18 fixed to the reaction force support ring 17, and is tightened by screwing the turnbuckle 19 in both forward and reverse directions. It is configured to apply an initial tightening force to the waterproof rubber via the screw rod 15 and the loading plate 14, or to release the same tightening force. The load plate 15, the tightening screw 16, the turnbuckle 19, the screw 18, and the reaction force support ring 17 constitute a device for applying an initial tightening force to the elastic water-stopping material and for releasing the tightening force. has been done.
而して１次コンクリート１４の打設、硬化後、
その打継面の所定位置に防水ゴム１３を設置し、
次いで前記ターンバツクル１９の操作によつて締
付螺桿１６を介して載荷板１４によつて防水ゴム
１３に初期締付力を賦与する。なお締付螺桿１６
は防水ゴム１３に所要の締付力が均等にかかるよ
うに配設される。 After the primary concrete 14 is placed and hardened,
A waterproof rubber 13 is installed at a predetermined position on the joint surface,
Next, by operating the turnbuckle 19, an initial tightening force is applied to the waterproof rubber 13 by the loading plate 14 via the tightening screw 16. In addition, the tightening screw 16
are arranged so that the required tightening force is evenly applied to the waterproof rubber 13.
次いで１次コンクリート１１の打継面に２次コ
ンクリート１２を打設すると、硬化後コンクリー
トの収縮によつて防水ゴム１３と２次コンクリー
ト１２との間に〓間が生じる。 Next, when the secondary concrete 12 is placed on the joint surface of the primary concrete 11, a gap is created between the waterproof rubber 13 and the secondary concrete 12 due to contraction of the concrete after hardening.
前記２次コンクリート１２が硬化した後、前記
ターンバツクル１９を操作して防水ゴム１３に対
する初期締付力を解放すると防水ゴム１３が伸長
して、２次コンクリート１２との〓間がなくな
る。この際、防水ゴム１３に十分な締付力を与え
ておくと、同防水ゴム１３に押圧力が残存し、高
い密着性が保持される。 After the secondary concrete 12 hardens, when the turnbuckle 19 is operated to release the initial tightening force on the waterproof rubber 13, the waterproof rubber 13 expands and there is no space between it and the secondary concrete 12. At this time, if a sufficient tightening force is applied to the waterproof rubber 13, the pressing force remains on the waterproof rubber 13, and high adhesion is maintained.
なお前記防水ゴム１３に対する締付力を解放し
た後はターンバツクル１９及び螺桿１８、反力支
持リング１７を締付螺桿１６より取外し、２次コ
ンクリート１２より突出した締付螺桿１６を切断
し、同２次コンクリート１２の表面を滑らかな流
水が保持されるように仕上げる。 After releasing the tightening force on the waterproof rubber 13, remove the turnbuckle 19, screw rod 18, and reaction force support ring 17 from the tightening screw rod 16, cut the tightening screw 16 protruding from the secondary concrete 12, and Next, the surface of the concrete 12 is finished so that it retains smooth running water.
図示の実施例は前記したように、１次コンクリ
ート１１と２次コンクリート１２との打継部に介
装された、初期締付力が賦与された防水ゴム１３
の締付力を２次コンクリート１２の硬化後解放す
ることによつて、同２次コンクリート１２と防水
ゴム１３との〓間をなくするとともに、防水ゴム
１３と１次、２次両コンクリート１１，１２との
間に高い押圧力を残存させ、１次コンクリート１
１に加工を施すことなく前記打継部の漏水を確実
に防止するものである。 As described above, the illustrated embodiment has a waterproof rubber 13 interposed at the joint between the primary concrete 11 and the secondary concrete 12, and to which an initial tightening force is applied.
By releasing the tightening force after the secondary concrete 12 hardens, the gap between the secondary concrete 12 and the waterproof rubber 13 is eliminated, and the waterproof rubber 13 and both the primary and secondary concrete 11, 12, a high pressing force remains between the primary concrete 1
1, water leakage at the joint is reliably prevented without any processing.
第１図は本考案に係る新旧コンクリート打継部
の防水装置の一実施例を示す縦断面図、第２図及
び第３図は夫々その部分拡大縦断面図並に横断平
面図、第４図は縦来のコンクリートケーシングポ
ンプの水路縦断面図、第５図乃至第７図は夫々第
４図の部分Ａの拡大図、第８図は前記水路におけ
るコンクリート打継部の漏水状態を示す縦断面図
である。
１１……１次コンクリート、１２……２次コン
クリート、１３……ゴム、１５……載荷板、１６
……締付螺桿、１７……反力支持リング、１８…
…螺桿、１９……ターンバツクル。
Fig. 1 is a longitudinal sectional view showing an embodiment of the waterproofing device for the joint between new and old concrete according to the present invention, Figs. 2 and 3 are a partially enlarged longitudinal sectional view and a cross-sectional plan view thereof, and Fig. 4. 5 is a vertical sectional view of a waterway of a conventional concrete casing pump, FIGS. 5 to 7 are enlarged views of part A in FIG. It is a diagram. 11...Primary concrete, 12...Secondary concrete, 13...Rubber, 15...Loading plate, 16
...Tightening screw rod, 17...Reaction force support ring, 18...
... Raekaku, 19...Turn buckle.
Claims (1)
材と、同止水材に対する初期締付力賦与並に同締
付力解放装置とよりなることを特徴とする新旧コ
ンクリート打継部の防水装置。 A waterproofing device for the joint between new and old concrete, characterized by comprising an elastic water-stopping material interposed in the joint between old and new concrete, and a device for imparting an initial tightening force to the water-stopping material and releasing the same tightening force. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3406985U JPH0237876Y2 (en) | 1985-03-12 | 1985-03-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3406985U JPH0237876Y2 (en) | 1985-03-12 | 1985-03-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61152069U JPS61152069U (en) | 1986-09-19 |
| JPH0237876Y2 true JPH0237876Y2 (en) | 1990-10-12 |
Family
ID=30537097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3406985U Expired JPH0237876Y2 (en) | 1985-03-12 | 1985-03-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0237876Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108130889A (en) * | 2017-12-25 | 2018-06-08 | 上海市水利工程集团有限公司 | Pump lock main body bottom plate and flow channel layer side wall step construction joint method for production |
-
1985
- 1985-03-12 JP JP3406985U patent/JPH0237876Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108130889A (en) * | 2017-12-25 | 2018-06-08 | 上海市水利工程集团有限公司 | Pump lock main body bottom plate and flow channel layer side wall step construction joint method for production |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61152069U (en) | 1986-09-19 |
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