JPS6047123A - Anticorrosive structure for splash zone of steel tubular pile on sea and anticorrosive covering therefor - Google Patents
Anticorrosive structure for splash zone of steel tubular pile on sea and anticorrosive covering thereforInfo
- Publication number
- JPS6047123A JPS6047123A JP15312483A JP15312483A JPS6047123A JP S6047123 A JPS6047123 A JP S6047123A JP 15312483 A JP15312483 A JP 15312483A JP 15312483 A JP15312483 A JP 15312483A JP S6047123 A JPS6047123 A JP S6047123A
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- pipe pile
- pile
- corrosion
- tube
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 56
- 239000010959 steel Substances 0.000 title claims abstract description 56
- 239000011414 polymer cement Substances 0.000 claims abstract description 23
- 239000011248 coating agent Substances 0.000 claims abstract description 13
- 239000004568 cement Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims abstract description 7
- 239000007924 injection Substances 0.000 claims abstract description 7
- 239000000839 emulsion Substances 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 125000006850 spacer group Chemical group 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract 3
- 230000007797 corrosion Effects 0.000 claims description 27
- 238000005260 corrosion Methods 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 claims 3
- 239000000057 synthetic resin Substances 0.000 claims 3
- 238000010438 heat treatment Methods 0.000 claims 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 229920000620 organic polymer Polymers 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 9
- 238000010276 construction Methods 0.000 description 7
- 239000004570 mortar (masonry) Substances 0.000 description 6
- 241001486863 Sprattus sprattus Species 0.000 description 3
- 239000011396 hydraulic cement Substances 0.000 description 3
- 239000011083 cement mortar Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 241000272525 Anas platyrhynchos Species 0.000 description 1
- 241000282472 Canis lupus familiaris Species 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/60—Piles with protecting cases
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、鋼管杭を基礎とする湾岸道路、埠頭、桟橋あ
るいは橋梁なとの水上施設支持用の鋼管杭等海洋上の鋼
管杭スブラツンユゾーンの防蝕構造物及びその防蝕用カ
バーに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a corrosion-resistant structure for marine steel pipe piles, such as steel pipe piles for supporting floating facilities such as coastal roads, wharves, piers, or bridges, which are based on steel pipe piles. and its corrosion-resistant cover.
さらに詳しくは、海洋」二の鋼Ｕ杭を硬質又は半硬質合
成桐脂筒木で囲包し、その鋼管杭と筒体との間隙にモル
タルセメントを圧入固化する防６１１１技術の改良に関
するものである。More specifically, it relates to the improvement of the 6111 technique of enclosing a steel U-pile of Kaiyō 2 with a hard or semi-hard synthetic paulownia wood and press-fitting mortar cement into the gap between the steel pipe pile and the cylindrical body. be.
／−バース、桟橋、海洋石油掘削ヤグラ、洋上空港、橋
梁などの海洋構造物で、海面と接触する部分、所謂スプ
ラソ７ユゾーンは腐蝕老化現象が甚大である。/- The parts of marine structures such as berths, piers, offshore oil drilling towers, offshore airports, and bridges that come into contact with the sea surface, the so-called 7 zones, are subject to severe corrosion and aging phenomena.
従来、このスブラソ／ユゾーンの腐蝕防止策として例え
ば、鋼管杭等の場合は、スプラッンユゾーンの周囲に型
枠を組み、型杭内にコンクリートを打設して鋼管杭のス
プラツ／ユゾーンをコンクリ−１・で包囲し、そのセメ
ントのアル−ｈ ｌ）により防蝕をすることが行われる
。Conventionally, as a measure to prevent corrosion of the sprat/yu zone, for example, in the case of steel pipe piles, etc., a formwork was built around the sprat/yu zone, concrete was poured into the form pile, and the sprat/yu zone of the steel pipe pile was concreted. -1), and the cement is protected against corrosion by Al-h l).
そして、この方法の簡便な施工法として、例えＱよ特公
昭３’ｌ−グＳユ汐号が提案され、賞賛さノシた。すな
わち、この方法は鋼管杭のスブラソンユゾーン周囲にＦ
ＲＰ等からなる筒１本を巻装して宙吊りにし、鋼管杭と
筒体との下部の間隙ニスｈ −トシールを設け、その上
部にセメントモルタルを注入し、そこの水を排除しつつ
、間隙部をセメントにより置換充填し、その１−２イ便
化させて筒体と共に防蝕構造体を構成するようにしたも
のである。Then, as a simple construction method of this method, the ``Q'' Tokuko Sho 3'l-G S Yushio No. was proposed and praised. In other words, this method creates F around the souvre sonyu zone of the steel pipe pile.
A tube made of RP, etc. is wrapped and suspended in the air, and a varnish seal is provided at the bottom of the gap between the steel pipe pile and the tube. The parts are replaced and filled with cement, and the parts are made into 1-2 parts to form a corrosion-resistant structure together with the cylindrical body.
この方法は簡便ではあるが、通常の水硬セメントモルタ
ルを使用するため、外部？ｌ１ｉｊ ｇ’％に苅してク
ラックを生じないように、和尚のｋみのコンクリート包
囲層にしなけれは乃：らず、そのために当然鋼管と徂）
体との間隙も大きくしなければならず、必然的に下部の
ンール方法に犬かがすな手段が採用されなけれはならな
かった。This method is simple, but since it uses normal hydraulic cement mortar, it is difficult to use externally. In order to prevent cracks from occurring, it is necessary to make the concrete surrounding layer as thick as possible, and for that reason, it is natural to use steel pipes.)
The gap between it and the body had to be increased, and it was necessary to adopt a method that would not allow dogs to duck under the lower part.
したがって、結果的には、下部の７−リング作業と、多
量の七メノトモルタル注入作業に長時間を女するのみな
らず、七メ／１・資料も多量に必要であり、今−歩の改
良が要望されていた。Therefore, as a result, not only did it take a long time to work on the lower 7-ring and inject a large amount of 7-ring mortar, but also a large amount of 7-metal/1 material was required. It was requested.
また、こうして得た防蝕層も、厚い七メント層の硬化収
縮時に、鋼管との界面で剥肉１１を生じたり、クラック
を生じたりし、その１徐間から水の浸入があって、防蝕
効果を著しく阻害する欠点もあった。In addition, when the thick 7-mention layer hardens and shrinks, the corrosion-resistant layer obtained in this way also causes peeling 11 or cracks at the interface with the steel pipe, and water infiltrates from that 1-minute interval, reducing the corrosion-proofing effect. There were also drawbacks that significantly hindered the
本発明者は、かかる上記方法の改良を試み、セメントモ
ルタルの注入五ｊ−をより少くすルコトにより、その目
的かが成されるものと＠Ｉｉ信し、先ずは使用するセメ
ントモルタル自体の改良を図ることにした。The present inventor attempted to improve the above-mentioned method, and believed that the purpose could be achieved by reducing the amount of cement mortar injection. I decided to try.
すなわち、通常の水硬セメントでは、ｆｉｌｉｌｉ管面
との４・１着力が弱いこと、及び硬化収縮又は外部衝撃
でクラックが入り易いことにβ三目し、これを改良した
セメントモルタルとして、先に、特願昭３’ｌ−／乙２
／夕号として提案したポリマーセメント塗覆剤を採用す
ることにより、通常の水硬セメントの場合よりも遥かに
薄いコンクリート包囲層であっても、鋼管面との伺応力
が大きく、且つクランクが生じ卸い防ｉＩ！ＩＩ被核層
な構成できるという知見を得た。In other words, we noticed that ordinary hydraulic cement has a weak 4.1 adhesion force with the fili pipe surface and is prone to cracking due to curing shrinkage or external impact, so we developed an improved cement mortar. , Tokugan Showa 3'l-/Otsu 2
/ By using the polymer cement coating agent proposed in the evening issue, even with a much thinner concrete enveloping layer than with normal hydraulic cement, the contact stress with the steel pipe surface is large and cranking occurs. Wholesale defense II! We have obtained the knowledge that it is possible to have a structure with a nucleated layer II.
このポリマーセメントは、水硬性七メ／１・混和物７０
０重量部に対して、４１機重合体水性エマルジョンを固
形分としてｓ〜／ｌ Ｑ ｐｉム」部を配合してなる塗
榎剤であり、これにより硬化低収縮で且つ鋼管面との接
着力が大きく、１ｌｌＩＨＪｒｊ牝性に優れ、施工波長
ル」に亘ってクラック等か生じないセメント防ｆ１！Ｉ
１層が得られるものである。This polymer cement is a hydraulic seven-metal/1 mixture of 70
It is a coating agent made by blending s~/l Q pim of a 41 polymer aqueous emulsion as a solid content to 0 parts by weight, which results in low curing shrinkage and high adhesive strength with the steel pipe surface. A cement-proof f1 with a large diameter, excellent compatibility, and no cracks or the like over the entire construction wavelength! I
One layer is obtained.
本発明は、かかる優れたポリマーセメントラ採用するこ
とにより、薄いセメント防蝕層にすることが可能となハ
それに付随して、施工構造も極めてＩＩｌ〕易にな凱施
工時間が短かく、且つ使用資材も少ない防蝕イ）′４造
を提供するものである。By employing such an excellent polymer cement, it is possible to create a thin cement corrosion-resistant layer.Concomitantly, the construction structure is also extremely easy.The construction time is short and the use is easy. It provides a corrosion-resistant construction with less materials.
しかして、本発明の要旨は、鋼管杭の外径よりも７０〜
１００♂大きい内径を有し、下端部内周面に鋼管杭の外
周を囲包する筒形の被覆筒と、該被覆筒と鋼管杭との間
隙に、セメント混和物１０θ部に対して、准槻重合体水
性エマルショｙ ３〜ｌｌｏ部を配合してなるポリマー
セメント塗機剤を注入、硬化させてなる防蝕層とが形成
されてなる海洋上の鋼管杭スプラッシュゾーンの防蝕用
構造物及びその防蝕用カバーに存する。However, the gist of the present invention is that the outer diameter of the steel pipe pile is 70 to
A cylindrical covering tube that has a large inner diameter of 100♂ and surrounds the outer periphery of the steel pipe pile on the inner circumferential surface of the lower end, and a cement mixture 10θ portion of Juntsuki in the gap between the covering tube and the steel pipe pile. Corrosion-protection structure for offshore steel pipe pile splash zone formed with corrosion-protection layer formed by injecting and curing a polymer cement coating agent containing 3 to 10 parts of polymer aqueous emulsion, and corrosion-protection thereof It is on the cover.
以下に本発明の一例な孕げて添付図面と共に説明する。An example of the present invention will be described below with reference to the accompanying drawings.
１７図は海洋構造物の鋼管杭を−示す図であり、図中（
ＩＪは海洋構造物、（２）０該構造を支える鋼管杭であ
シ、下端が水底に埋め込まれている。Figure 17 shows steel pipe piles for offshore structures, and in the figure (
IJ is an offshore structure, and (2)0 the structure is supported by steel pipe piles, the lower end of which is embedded in the water bottom.
Ｌ、 Ｗ、 Ｌは低水位、Ｈ，Ｗ、 Ｌ−高水位を示す
線である。L, W, L are lines indicating low water level, H, W, L - lines indicating high water level.
矛Ω図は本発明の一実施態様を示す縦断面図である。こ
の図においては、説明の便宜上鋼省・杭（２）は破断し
ないで図示している。（４）は塩化ビニル、ＦＲＰ、ポ
リエチレン等の（ｍｆｆ又は半硬質の合成（ｖＩ脂材料
からなる防蝕カバーである。The cross-sectional view is a vertical cross-sectional view showing one embodiment of the present invention. In this figure, for convenience of explanation, the steel pile (2) is shown without being broken. (4) is a corrosion-resistant cover made of (mff) or semi-rigid synthetic (vI) material such as vinyl chloride, FRP, polyethylene, etc.
このカバー（４］け、ｊ・３図に示されるように一側壁
が軸方向に縁切られ、その両端げ）、（４つが相互に刃
台して、「の」字形に巻かれて、半径方向に開くことが
できる筒体力）らなっており、その下端部内周面には下
方に行くに従って狭窄するチー ／： −（５１が形成
されている。This cover (4) has one side wall edged in the axial direction as shown in Figure J.3, and both end edges). The tube has a cylindrical body which can be opened in the radial direction, and a groove 51 which narrows downward is formed on the inner peripheral surface of the lower end thereof.
址だ、前記テーパー（５）の上位側壁には後述するポリ
マーセメント塗覆剤を注入するための注入弁（６）が数
例けられている。そして、上端部には、本筒体（４）を
鋼管杭（２）の周囲に巻装して吊持するため及び前記ポ
リマ〜セメント塗覆剤注入時の水及びその塗段剤を湿田
するための穴（７）及び切欠部（８）が設けられている
。さらに、前記両側ψ１ｉａ（４ｊ、（消部には相互に
重合締付けするための給料は穴（９）が列設されている
。００）は前記被覆筒（／１）が鋼′ｌ゛コ゛杭（２）
に巻装されたとき、両者の間隙を一定に保ｊ、１するた
めのスペーサーであり、例えば、被覆筒（４）の内壁に
取付けられる。However, several injection valves (6) for injecting a polymer cement coating agent, which will be described later, are provided on the upper side wall of the taper (5). Then, at the upper end, in order to wrap the main cylinder body (4) around the steel pipe pile (2) and suspend it, and to wet the water and its coating agent when injecting the polymer-cement coating agent. A hole (7) and a notch (8) are provided for the purpose. Further, in the above-mentioned both sides ψ1ia (4j, (the opening part is provided with holes (9) for mutually overlapping and tightening.00), the sheathing tube (/1) is made of steel (2)
This spacer is used to maintain a constant gap between the two when the cover is wrapped around the cover tube (4), and is attached to the inner wall of the cover tube (4), for example.
（１１）は上記被覆筒（／１）を吊持保持するだめの自
閉リンクであり、ｊ−グ図に斜視図で示すように、鋼管
杭（２）に巻装される環体（１２）の外突起（１３）に
リンク結合して取付けられている。こうして環体（１２
）は鋼管杭（２）に巻装され、例えば溶接等により簡易
止めさノ′しると、自閉リンク（１１）はそれ自体でも
上部が開き、下端が鋼管杭（２）の外面に接する。この
状態で、前述の防蝕カバー（４）が鋼管杭（２）に巻装
され、自閉リンク（１１）の上部に乗ぜられると、その
重り士により、自閉リンク（１１）の」二部をさらに開
ける力が作用し、逆に下端はテコ作用で鋼管杭（２）の
外面を強圧締めつけることになる。(11) is a self-closing link that suspends and holds the sheathing tube (/1), and as shown in the perspective view in the diagram, the ring body (12) wrapped around the steel pipe pile (2) ) is linked and attached to the external protrusion (13). Thus the ring (12
) is wrapped around the steel pipe pile (2), and when it is simply fixed by welding, for example, the self-closing link (11) opens itself at the top and its lower end contacts the outer surface of the steel pipe pile (2). . In this state, when the above-mentioned corrosion-resistant cover (4) is wrapped around the steel pipe pile (2) and placed on top of the self-closing link (11), the weighter lifts the two parts of the self-closing link (11). A force is applied to further open the steel pipe pile (2), and conversely, the lower end acts as a lever and strongly tightens the outer surface of the steel pipe pile (2).
一方、予めｌ’；）ｊ蝕カバーの前記テーパー（５）の
上位に位置する鋼管杭との間隙には、３′ｓ図に示され
るような水より比重の大きいゴムの丸棒のようなものを
、ゆるく巻装してスリーブ（Ｉ５）により接合して、０
リング（１４）を形成しておく。これにより、鋼管杭（
２）とテーパー（５）との間をシーリングするようにな
されている。On the other hand, in advance, in the gap between the taper (5) of the erosion cover and the steel pipe pile, a rubber round rod having a specific gravity higher than that of water as shown in Figure 3's is installed. Loosely wrap the objects and connect them with a sleeve (I5), and
A ring (14) is formed. As a result, steel pipe piles (
2) and the taper (5).
こうして鋼管杭（２）の周囲に巻装された防蝕カバー（
４）の上端の前記穴（７）及び切欠部（８）の外周に、
牙乙図に示すようなゴム弾性シールバント責１６）を巻
装して閉塞する。該弾性シール・・ンド（Ｉ［ｉｌはワ
イヤー（１７）等の適宜締めつけ具により締めつける。In this way, the corrosion-resistant cover (
4) On the outer periphery of the hole (7) and the notch (8) at the upper end,
It is closed by wrapping a rubber elastic seal band 16) as shown in the diagram. The elastic seal (I[il) is tightened with a suitable tightening tool such as a wire (17).
かくして、鋼管杭（２）の周囲には防蝕カッ＜ −（４
１が巻装される。この状態で、前記モルタルセメント注
入弁（６１より、ポリマーセメントが圧入されると、そ
の圧力によシ、牙７図に示すように、０リング（Ｉ（１
）は前記テーパー而（５）と鋼管杭外周との間隙に強く
押込まれて、両者間のシールな完全なものにする。さら
にポリマーセメントが圧入されるにつれて、該セメント
液位の上昇とともに、該間隙部の水は上方の穴（７）及
び切欠部（８）から押し出され、弾性ソールバンド（１
Ｇ）の弾性に抗して、外部に湿田されることにより、水
とポリマーセメントとが置換充填されるのである。Thus, around the steel pipe pile (2) there is a corrosion-proof cup < -(4
1 is wrapped. In this state, when the polymer cement is press-fitted from the mortar cement injection valve (61), the O-ring (I (1)
) is strongly pushed into the gap between the taper (5) and the outer periphery of the steel pipe pile to create a complete seal between the two. As the polymer cement is further press-fitted, water in the gap is pushed out from the upper hole (7) and notch (8) as the cement liquid level rises, and the elastic sole band (1)
By being wetted outside against the elasticity of G), water and polymer cement are replaced and filled.
さらに、ポリマーセメントの圧入を続けると、前記水が
全て置換排除され、ポリマーセメントの余剰分寸で、穴
（７）及び切欠部（８）から湿田するので、直ちにその
圧入を停止すると、弾性ノールバンド０６）の弾性力に
より穴（７）及び切欠部（８１は閉鎖される。Furthermore, if the press-fitting of polymer cement is continued, all of the water will be replaced and removed, and the surplus polymer cement will be wetted from the hole (7) and the notch (8), so if the press-fit is stopped immediately, the elastic knoll band 06), the hole (7) and the notch (81) are closed.
こうして、防蝕カバー（２）の下端から上端１で完全に
ポリマーセメントが充填されるので、鋼管杭（２）の上
端天井部−土で防蝕被緩することができるものである。In this way, the corrosion-protective cover (2) is completely filled with polymer cement from the lower end to the upper end 1, so that the upper end of the steel pipe pile (2) can be covered with corrosion-protected soil.
本発明に使用きれるポリマーセメントとしては、前述の
特願昭３グ一／Ａ２／！ｉ号にて提案した水イを性のポ
リマーセメントを用いることにより、その優れた接着力
と面１クラック住によシ、前記鋼管杭（２）と防蝕カバ
ー（４）との間隙を／θ〜１０ｏｚという薄い値に設定
することができるものである。As the polymer cement that can be used in the present invention, the above-mentioned patent application No. 3 Guichi/A2/! By using the water-resistant polymer cement proposed in No. It can be set to a thin value of ~10 oz.
本発明は、上述のようにポリマーセメントを使用するの
で、モルタル防蝕被覆層を薄くできるため、防蝕カバー
下部の鋼管杭との間隙シールは狭くなシ、テーパーと自
閉０リングによりシールをすることができ、しかも確実
である。Since the present invention uses polymer cement as described above, the mortar corrosion-resistant coating layer can be made thinner, so the gap between the lower part of the corrosion-resistant cover and the steel pipe pile is narrow, and the seal can be achieved using a taper and a self-closing O-ring. is possible and reliable.
址だ、防蝕力；く−の上端には、濡出切欠部や穴があり
、その外囲を弾性ソールバンドが設けである状態でポリ
マーセメントが押入されるので、全体に空洞の無や致密
な防蝕！−が形成されるから、長期に亘ってクランクが
発生しない。There is a wetting notch or hole at the upper end of the hole, and the polymer cement is pushed in with an elastic sole band surrounding it, so there are no cavities or holes throughout. Corrosion resistant! - is formed, so cranking will not occur for a long time.
さらに、前記弾性シールバンドがあるので、鋼管杭の上
端部１で完全にポリマーセメントにより被覆できるから
、この部分の後補修も一切不要で、鋼管杭のスプラッシ
ュゾーン全体ヲ確実に防蝕することができるものである
。Furthermore, because of the elastic seal band, the upper end 1 of the steel pipe pile can be completely covered with polymer cement, so there is no need for any subsequent repair of this part, and the entire splash zone of the steel pipe pile can be reliably protected from corrosion. It is something.
しかも、モルタル防蝕層が薄いということは、それだけ
使用資材を少くすることができ、併せて、施工作業時間
も大幅に短縮されるものであシ、総じて施工費用も安価
にすることができる等優杵、た効果を奏するものである
。Moreover, the fact that the mortar corrosion-resistant layer is thin means that less materials can be used, and the construction time can also be significantly shortened, which also reduces construction costs overall. It has the effect of a pestle.
１７図は海洋構造物の水中に設置された鋼管杭の側面図
、２・コ図は木兄り］防蝕］１イ造物の一例の一部縦断
面図、珂・３図は本発明に使用する防蝕カバーの一例の
斜視図、矛り図は同防蝕カバーを鋼管杭に吊持するため
の自閉リンクの斜視図、３− ｓ図は同防蝕カバーに使
用される下部シール用のＯＩＪングの斜視図、λ・６図
は同防蝕カバーに使用される上部シールバンドの一例の
斜視図、牙７図は同防蝕ツノバーにポリマーセメントを
注入する時の状態を示す説明断面図である。
（１）：海洋構造物、（２）：鋼管杭、（４）：防蝕カ
バー。
（５）：テーパー、（６）：ポリマーセメント注入口、
（７）：浴出穴、（１０１：スペーサー、（Ｉｌ＋：自
閉リンク、（■カニ〇リング、θＧ）：弾性シールバン
ド１１
−１１９−
第７図Figure 17 is a side view of a steel pipe pile installed underwater in an offshore structure, Figures 2 and 3 are partial longitudinal cross-sectional views of an example of a wooden structure, and Figures 3 and 3 are partial vertical cross-sectional views of an example of a structure. A perspective view of an example of a corrosion-resistant cover, a cross-sectional view is a perspective view of a self-closing link for suspending the same corrosion-resistant cover on a steel pipe pile, and a 3-s figure is an OIJ ring for the lower seal used in the same corrosion-resistant cover. Fig. 6 is a perspective view of an example of the upper seal band used in the corrosion-resistant cover, and Fig. 7 is an explanatory cross-sectional view showing the state when polymer cement is injected into the corrosion-resistant horn bar. (1): Marine structures, (2): Steel pipe piles, (4): Corrosion protection covers. (5): Tapered, (6): Polymer cement injection port,
(7): Bathing hole, (101: Spacer, (Il+: Self-closing link, (■Crab ring, θG): Elastic seal band 11 -119- Figure 7
Claims (6)
イアする硬質又は半硬質の合成樹脂材料からなる鋼管杭
の外周を囲包するＴＪ）形の″＄、稙筒と、該被覆筒と
鋼管との間隙に、セメント混和物７００部に対して有機
重合内水性エマルジョンＪ−−４ｔＯ部を配合してなる
ポリマーセメント塗稜剤を注入、硬化させてなる防蝕層
とが形成されてなることすｌＩη徴とするｄσ洋」二の
鋼管杭スプラッシュゾーンの防蝕用構造物。(1) A TJ)-shaped pipe made of a hard or semi-hard synthetic resin material with an inner diameter 70 to 100% larger than the outside diameter of the steel pipe pile, and the covering. A corrosion-resistant layer is formed by injecting and hardening a polymer cement coating agent consisting of 700 parts of a cement mixture and 4 parts of an organic polymerized internal aqueous emulsion J--4tO into the gap between the cylinder and the steel pipe. Corrosion protection structure for the second steel pipe pile splash zone.
記被覆筒は、下端部内ノ閉面に、下方に行くに従って狭
窄するテーパーが設けられ、該テーパーと鋼管杭との間
隙に挿入された０リングを具えていることを特徴とする
海洋上の鋼管杭スプラツンユゾーンの防蝕用構造物。(2) In the item described in claim 17, the covering tube is provided with a taper that narrows downward as it goes downwards on the inner closed surface of the lower end portion, and a steel tube pile is inserted into the gap between the taper and the steel pipe pile. A structure for corrosion protection in a marine steel pipe pile spratsunyu zone, characterized by comprising a ring.
面に、下方に行くに従って狭窄するテーパーが設けられ
、このテーパーより上位側面にセメント塗覆剤を注入す
るための注入弁が設けられてなる硬質又は半硬質の合成
樹脂筒体からなる被覆筒と、鋼管杭に取付けられる］還
体に、前記筒体を吊持する複数のリンクを有してなる自
閉リンクと、鋼管杭と被覆筒との間隙容量を一定に保持
するためのスペーツーーと、前記被眼筒と鋼管杭とのテ
ーパー上部の間隙に挿入され、Ｔ）１」記間隙に注入さ
れるセメント塗層剤の重量を受けて前記テーパー面と鋼
管杭との間に締着密閉する自閉バッキングとを有してな
ることを％徴とする海洋上の鋼管杭スプラッシュゾーン
の防蝕用カバー。(3) The steel pipe pile has an inner diameter larger than the outer diameter, and a taper is provided on the inner peripheral surface of the lower end that narrows as it goes downward, and an injection valve for injecting cement coating agent is provided on the side surface above this taper. A covering cylinder made of a hard or semi-hard synthetic resin cylinder, a self-closing link having a plurality of links for suspending the cylinder on a return body attached to a steel pipe pile, and a steel pipe. A spacer for maintaining a constant gap capacity between the pile and the sheathing tube, and a cement coating agent inserted into the gap at the top of the taper between the sheathing tube and the steel pipe pile, and injected into the gap. A corrosion-protective cover for a splash zone of a steel pipe pile on the ocean, comprising a self-closing backing that tightens and seals between the tapered surface and the steel pipe pile under weight.
被覆筒は一側が軸方向に切断され、その切断端が重なり
合う半硬質合成樹脂利料からなる筒体であることを特徴
とする海洋上の鋼管杭スプラッシュゾーンの防蝕用カバ
ー。(4) In the product described in claim 3, the covering tube is a cylinder made of semi-rigid synthetic resin material, with one side cut in the axial direction and the cut ends overlapping each other. Corrosion protection cover for the upper steel pipe pile splash zone.
被覆筒の材質はＦＲＰからなることを特徴とする海洋上
の鋼管杭スプラソンユゾーンの防蝕用カバー。(5) A corrosion-protective cover for a steel pipe pile sprinkling zone on the ocean, as set forth in claim 3, wherein the material of the covering tube is made of FRP.
おいて、前記被覆筒の上端部には前記注入されるセメン
ト塗覆剤及び水の温出口が設けられ、該温出口の外周囲
には弾性月相からなる閉塞バンド弁を取イ」けてなるこ
とを特徴とするｉ＋ｊ、 ’ｌＩＢ上の鋼’ｉｆｆ’杭
スプララスプラッシュゾーンカバー。(6) In the product described in claim 3 or 2, the upper end of the coating tube is provided with a heating outlet for the cement coating agent and water to be injected, and the outside of the heating outlet is provided. I+J, steel 'iff' pile splarus splash zone cover on 'IIB' characterized by a surrounding occlusion band valve consisting of an elastic moon phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15312483A JPS6047123A (en) | 1983-08-24 | 1983-08-24 | Anticorrosive structure for splash zone of steel tubular pile on sea and anticorrosive covering therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15312483A JPS6047123A (en) | 1983-08-24 | 1983-08-24 | Anticorrosive structure for splash zone of steel tubular pile on sea and anticorrosive covering therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6047123A true JPS6047123A (en) | 1985-03-14 |
Family
ID=15555499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15312483A Pending JPS6047123A (en) | 1983-08-24 | 1983-08-24 | Anticorrosive structure for splash zone of steel tubular pile on sea and anticorrosive covering therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6047123A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0571483U (en) * | 1992-07-23 | 1993-09-28 | スガツネ工業株式会社 | Multi-plate damper using viscous fluid |
| CN105862574A (en) * | 2016-05-27 | 2016-08-17 | 连云港奥尼斯环保设备有限公司 | Glass fiber reinforced plastic pier for bridge |
| CN107893415A (en) * | 2017-11-28 | 2018-04-10 | 淮海工学院 | A kind of corrosion-resistant miniature steel pipe pile and manufacture method |
-
1983
- 1983-08-24 JP JP15312483A patent/JPS6047123A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0571483U (en) * | 1992-07-23 | 1993-09-28 | スガツネ工業株式会社 | Multi-plate damper using viscous fluid |
| CN105862574A (en) * | 2016-05-27 | 2016-08-17 | 连云港奥尼斯环保设备有限公司 | Glass fiber reinforced plastic pier for bridge |
| CN107893415A (en) * | 2017-11-28 | 2018-04-10 | 淮海工学院 | A kind of corrosion-resistant miniature steel pipe pile and manufacture method |
| CN107893415B (en) * | 2017-11-28 | 2019-10-01 | 淮海工学院 | A kind of corrosion-resistant miniature steel pipe pile and manufacturing method |
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