JPH0760708B2 - How to embed a sacrificial anode rod - Google Patents
How to embed a sacrificial anode rodInfo
- Publication number
- JPH0760708B2 JPH0760708B2 JP1082486A JP8248689A JPH0760708B2 JP H0760708 B2 JPH0760708 B2 JP H0760708B2 JP 1082486 A JP1082486 A JP 1082486A JP 8248689 A JP8248689 A JP 8248689A JP H0760708 B2 JPH0760708 B2 JP H0760708B2
- Authority
- JP
- Japan
- Prior art keywords
- sacrificial anode
- anode rod
- asbestos
- tube
- pipe
- 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
- 239000010425 asbestos Substances 0.000 claims description 33
- 229910052895 riebeckite Inorganic materials 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 11
- 239000000440 bentonite Substances 0.000 claims description 6
- 229910000278 bentonite Inorganic materials 0.000 claims description 6
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Manufacturing Of Electrical Connectors (AREA)
- Prevention Of Electric Corrosion (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は接地棒埋設工事等において用いる犠牲陽極棒の
埋設方法の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an improvement in a method of burying a sacrificial anode rod used in a ground rod burying work or the like.
［従来の技術とその問題点］ 接地棒で接地を行う場合、接地棒の電解腐食を防止する
ために、接地棒の近傍に犠牲陽極棒を埋設することが公
知である。[Prior Art and its Problems] When grounding with a grounding rod, it is known to embed a sacrificial anode rod in the vicinity of the grounding rod in order to prevent electrolytic corrosion of the grounding rod.
この犠牲陽極棒の埋設工法として、アスベスト管を地中
に打込み、このアスベスト管内に犠牲陽極棒を挿入する
ことがある。この場合、アスベスト管の使用は、犠牲陽
極棒の挿入空間を確保し、この空間に犠牲陽極棒を実質
上挿入抵抗なく軽く差し込むことを可能にして犠牲陽極
棒の損傷を排除することにある。As a method of burying the sacrificial anode rod, an asbestos pipe may be driven into the ground and the sacrificial anode rod may be inserted into the asbestos pipe. In this case, the use of the asbestos tube is to secure an insertion space for the sacrificial anode rod, allow the sacrificial anode rod to be lightly inserted into this space with substantially no insertion resistance, and eliminate damage to the sacrificial anode rod.
ところで、犠牲陽極棒の機能を効果的に発揮させて上記
接地棒の電解腐食を確実に防止するには、接地棒と犠牲
陽極棒との間の空間をイオンの移動をよく促進する良導
電性に保持することが必要であり、上記アスベスト管に
は吸水性に優れたものを使用する必要がある。By the way, in order to effectively exhibit the function of the sacrificial anode rod and to surely prevent electrolytic corrosion of the ground rod, a good conductivity that promotes the movement of ions well in the space between the ground rod and the sacrificial anode rod is provided. Therefore, it is necessary to use the asbestos pipe having excellent water absorbency.
而るに、アスベスト管の吸水性はアスベスト繊維量に依
存し、アスベスト繊維量を大にしマトリックスであるセ
メントを少なくすればするほど吸水性を向上できるが、
セメント量を余り少なくすればアスベスト管の強度低下
が避けられず、従って、上記工法におけるアスベスト管
の地中への打込みが困難となり、作業性の低下を免れ得
ない。Therefore, the water absorption of the asbestos pipe depends on the amount of asbestos fibers, and the larger the amount of asbestos fibers and the less the cement that is the matrix, the more the water absorption can be improved.
If the amount of cement is too small, a decrease in the strength of the asbestos pipe cannot be avoided, and therefore it becomes difficult to drive the asbestos pipe into the ground in the above method, and the workability cannot be avoided.
従って、従来の工法ではアスベスト管にセメント分が多
くアスベスト繊維量の少ないものを使用せざるを得ず、
アスベスト管の吸水性不足による犠牲陽極棒の腐食効果
の低下が避けられない。Therefore, in the conventional construction method, it is unavoidable to use asbestos pipes with a large amount of cement and a small amount of asbestos fibers.
It is unavoidable that the corrosion effect of the sacrificial anode rod decreases due to insufficient water absorption of the asbestos tube.
［問題点を解決するための手段］ 本発明の目的は、吸水性に富んだアスベストリッチのア
スベスト管を支障なく使用し得る犠牲陽極棒の埋設方法
を提供することにあり、その要旨とするところは、犠牲
陽極棒をアスベスト管内に挿入し、アスベスト管と犠牲
陽極棒との間にベントナイトを充填する犠牲陽極棒の埋
設方法であって、管体の先端にヘッダーを挿着した押込
管を地中に押込み埋設し、該押込管内にアスベスト管を
挿入した後に上記押込管の管体のみを抜取ることを特徴
とする犠牲陽極棒の埋設方法にある。[Means for Solving the Problems] An object of the present invention is to provide a method for burying a sacrificial anode rod which can use an asbestos tube of asbestos rich rich in water absorption without any trouble, and its gist is Is a method of embedding a sacrificial anode rod by inserting a sacrificial anode rod into the asbestos pipe and filling bentonite between the asbestos pipe and the sacrificial anode rod. A sacrificial anode rod burying method is characterized in that the sacrificial anode rod is embedded by being pushed in and the asbestos tube is inserted into the pushing tube, and then only the tubular body of the pushing tube is pulled out.
［実施例］ 以下、図面により本発明を説明する。EXAMPLES The present invention will be described below with reference to the drawings.
第１図において、Ｍはマンホールである。１は押込管
（例えば、鋼管製）であり、管体11の先端にヘッダー12
を着脱自在に挿着してある。すなわち、ヘッダー12は管
体11の先端に単に挿入装着されているだけであり、挿
入、抜去するだけで自在に着脱できる。上記ヘッダー12
には絶縁物体、例えばFRP、セラミック等が使用され
る。In FIG. 1, M is a manhole. 1 is a push-in pipe (for example, made of steel pipe), and a header 12 is attached to the tip of the pipe body 11.
Is detachably attached. That is, the header 12 is simply inserted and attached to the tip of the pipe body 11, and can be freely attached and detached by inserting and removing it. Header 12 above
Insulating objects, such as FRP, ceramics, etc. are used for this.
本発明を実施するには、第１図に示すように押込管１を
地中にハンマー等により打込み、次いで第２図に示すよ
うに押込管１内にアスベスト管２を挿入し、このアスベ
スト管２内に犠牲陽極棒（マグネシウム棒）３を挿入す
る。アスベスト管２と犠牲陽極棒３との間には、含水ベ
ントナイト４を充填し導電性を確保しておく。なお、ア
スベスト管２内への犠牲陽極棒３の挿入並びに含水ベン
ドナイト４の充填は、アスベスト管２を押込管１内に挿
入する前に予め行っておくこともできる。In order to carry out the present invention, as shown in FIG. 1, the pushing tube 1 is driven into the ground by a hammer or the like, and then the asbestos tube 2 is inserted into the pushing tube 1 as shown in FIG. A sacrificial anode rod (magnesium rod) 3 is inserted into 2. Water-containing bentonite 4 is filled between the asbestos tube 2 and the sacrificial anode rod 3 to ensure conductivity. The insertion of the sacrificial anode rod 3 into the asbestos tube 2 and the filling of the hydrous bentonite 4 can be performed in advance before the asbestos tube 2 is inserted into the pushing tube 1.
しかる後に、第３図に示すように、押込管１の管体11の
みを抜き取り、更に第４図に示すように接地棒５を打込
み、接地棒５と犠牲陽極棒３とをボンド線６で結線し、
最後にマンホール壁の左官仕上げを行い、これにて工事
を終了する。Then, as shown in FIG. 3, only the tubular body 11 of the push-in pipe 1 is pulled out, and the ground rod 5 is further driven in as shown in FIG. Connect
Finally, plastering the manhole wall is completed, and the construction is completed.
上記において、第１図に示す段階の押込管１にアスベス
ト管２を挿入し、次いで管体11を抜き取り、しかる後に
アスベスト管２内への犠牲陽極棒３の挿入、含水ベント
ナイト４の充填を行うこともできる。In the above, the asbestos tube 2 is inserted into the pushing tube 1 at the stage shown in FIG. 1, then the tube body 11 is extracted, and then the sacrificial anode rod 3 is inserted into the asbestos tube 2 and the hydrous bentonite 4 is filled. You can also
［発明の効果］ 本発明に係る犠牲陽極棒の埋設方法は、上述した通り、
押込管を地中に埋設し、この押込管内の空間にアスベス
ト管を挿入しており、アスベスト管を小さな押入力で挿
入できるから、アスベスト管に機械的強度が要求され
ず、アスベスト管にアスベストリッチの高吸水性のもの
を使用できる。また、押込管はその管体を引抜き、絶縁
物より成るヘッダーのみを地中に残すので、犠牲陽極棒
の機能に対し障害となることがない。更に本発明の方法
においては、犠牲陽極棒を高吸水性のアスベスト管内に
挿入し、アスベスト管と犠牲陽極棒との間にベントナイ
トを充填するので、犠牲陽極棒の周囲を良導電性に保
ち、犠牲陽極棒の機能を効果的に発揮させることができ
る。[Effects of the Invention] The method for burying the sacrificial anode rod according to the present invention is as described above.
The push pipe is buried in the ground, and the asbestos pipe is inserted into the space inside the push pipe. Since the asbestos pipe can be inserted with a small pushing force, mechanical strength is not required for the asbestos pipe and the asbestos pipe is asbestos rich. It is possible to use a highly absorbent material. Further, since the push-in tube pulls out the tube body and leaves only the header made of an insulating material in the ground, it does not hinder the function of the sacrificial anode rod. Furthermore, in the method of the present invention, the sacrificial anode rod is inserted into a highly water-absorbing asbestos tube, and bentonite is filled between the asbestos tube and the sacrificial anode rod, so that the periphery of the sacrificial anode rod is kept highly conductive, The function of the sacrificial anode rod can be effectively exerted.
第１図、第２図、第３図並びに第４図はそれぞれ本発明
に係る犠牲陽極棒の埋設方法による埋設工程を説明する
説明図である。 図において、１は押込管、11は管体、12はヘッダー、２
は吸水管、３は犠牲陽極棒である。1, FIG. 2, FIG. 3 and FIG. 4 are explanatory views for explaining the embedding step by the embedding method of the sacrificial anode rod according to the present invention. In the figure, 1 is a push-in pipe, 11 is a tubular body, 12 is a header, 2
Is a water absorption tube, and 3 is a sacrificial anode rod.
Claims (1)
スベスト管と犠牲陽極棒との間にベントナイトを充填す
る犠牲陽極棒の埋設方法であって、管体の先端にヘッダ
ーを挿着した押込管を地中に押込み埋設し、該押込管内
にアスベスト管を挿入した後に上記押込管の管体のみを
抜取ることを特徴とする犠牲陽極棒の埋設方法。1. A method for embedding a sacrificial anode rod in which a sacrificial anode rod is inserted into an asbestos tube and bentonite is filled between the asbestos tube and the sacrificial anode rod, wherein a header is inserted into the tip of the tubular body. A method for embedding a sacrificial anode rod, characterized in that a tube is pushed and buried in the ground, an asbestos tube is inserted into the pushed tube, and then only the tube body of the pushed tube is extracted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1082486A JPH0760708B2 (en) | 1989-03-31 | 1989-03-31 | How to embed a sacrificial anode rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1082486A JPH0760708B2 (en) | 1989-03-31 | 1989-03-31 | How to embed a sacrificial anode rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02262282A JPH02262282A (en) | 1990-10-25 |
| JPH0760708B2 true JPH0760708B2 (en) | 1995-06-28 |
Family
ID=13775840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1082486A Expired - Fee Related JPH0760708B2 (en) | 1989-03-31 | 1989-03-31 | How to embed a sacrificial anode rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0760708B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100509191B1 (en) * | 2002-10-31 | 2005-08-17 | 한국전력공사 | Ground connection apparatus of low pressure connection box |
| JP5940490B2 (en) * | 2013-05-23 | 2016-06-29 | 株式会社ナカボーテック | Electrocorrosion protection method for underground piping and electrode device for anticorrosion |
| JP7075651B2 (en) * | 2017-10-24 | 2022-05-26 | 日本防蝕工業株式会社 | Embedded form of electrode body |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6016043Y2 (en) * | 1979-11-05 | 1985-05-20 | 三菱電線工業株式会社 | Grounding structure |
| JPH0141171Y2 (en) * | 1986-05-14 | 1989-12-06 |
-
1989
- 1989-03-31 JP JP1082486A patent/JPH0760708B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02262282A (en) | 1990-10-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |