JPS5988511A - On-site placement work of breakwater - Google Patents
On-site placement work of breakwaterInfo
- Publication number
- JPS5988511A JPS5988511A JP57197617A JP19761782A JPS5988511A JP S5988511 A JPS5988511 A JP S5988511A JP 57197617 A JP57197617 A JP 57197617A JP 19761782 A JP19761782 A JP 19761782A JP S5988511 A JPS5988511 A JP S5988511A
- Authority
- JP
- Japan
- Prior art keywords
- water
- concrete
- breakwater
- permeable
- mold frame
- 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
- 239000004567 concrete Substances 0.000 claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 20
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- 239000004568 cement Substances 0.000 claims abstract description 7
- ZNZYKNKBJPZETN-WELNAUFTSA-N Dialdehyde 11678 Chemical compound N1C2=CC=CC=C2C2=C1[C@H](C[C@H](/C(=C/O)C(=O)OC)[C@@H](C=C)C=O)NCC2 ZNZYKNKBJPZETN-WELNAUFTSA-N 0.000 claims abstract description 3
- 238000010276 construction Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 6
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical group O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052783 alkali metal Inorganic materials 0.000 claims description 4
- JGJLWPGRMCADHB-UHFFFAOYSA-N hypobromite Chemical compound Br[O-] JGJLWPGRMCADHB-UHFFFAOYSA-N 0.000 claims description 4
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims description 3
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims 1
- 238000005266 casting Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 238000009415 formwork Methods 0.000 abstract 5
- 239000005708 Sodium hypochlorite Substances 0.000 description 5
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 5
- 239000002562 thickening agent Substances 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- -1 alkali metal hypochlorites Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000002253 acid Chemical class 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- CUILPNURFADTPE-UHFFFAOYSA-N hypobromous acid Chemical class BrO CUILPNURFADTPE-UHFFFAOYSA-N 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、水中において信頼性のある粘稠性コンクリ
−１〜を施工容易な型わく内に打設づる防波堤の場所打
ｔ５］口演に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the construction of a breakwater in which viscous concrete 1 to 1 is cast within an easy-to-construct mold that is reliable under water.
防波堤の主な形式は、傾斜板、直立堤および混合板に分
ｔノられるが、混合板がぞの大半を占め、その中でもケ
ーソン式混合堤がその主流となっている。しかし、クー
ソンは通常鉄筋コンクリ−１〜構造のブレ主１１スト部
祠であるため、その製作に際してはクーソンＡ７−ドを
必Ｉｆとし、製１′「、進水方法にＪ：す、斜路方式、
ドライドツク、７０−ディングドック、起重機船による
吊り下ろし方式、掘削方式、海上製作等があるが、いず
れも直接現地で製作す°る場所打ら」口演に比して余分
な設備、養生場所等が必要であり、仮設費が増加し、ケ
ーソンの曳航、据ｆ」り等の作業］−稈す必ｖ２どなり
、」］期、工費が増加りる欠点があった。The main types of breakwaters are divided into inclined plates, vertical levees, and mixed plates, with mixed plates accounting for the majority, and among these, caisson type mixed levees are the mainstream. However, since the Courson is usually a reinforced concrete structure with a main structure of 1 to 11, it is necessary to use the Courson A7-de when manufacturing it, and the launching method is J: Slope method. ,
There are dry docks, 70-bed docks, hoisting methods using hoist ships, excavation methods, offshore production, etc., but all of them require extra equipment, curing areas, etc. compared to oral production. This had the drawback of increasing the cost of temporary construction, as well as the cost of towing the caisson, laying down the culms, etc.
まｌＣ１水中：１ンクリートを打設りる場合、＝１ンク
リートが水に洗われてセメン１−分がコンクリ＝１・か
ら分離して水中に逸散し、コンクリートの強度が著しく
低Ｆ−Ｊるｌこめ］ンクリート（８造休の信用性に乏し
い欠点があり、これを防止するためにコンクリ−１〜に
粘稠剤を添加することも行われＩζが、粘稠剤がヒメン
トに比べ（高価なため粘稠剤の価格がコンクリ−１〜ど
同程度またはぞれ以上となり月わ１費が増大する欠点が
あり、かつ、へ分子粘稠剤を含むコンクリ−１・はこれ
を含まないコンクリ−１・に比べ−く凝結が近れ強度が
低くなる傾向があり、これらの点は水中コンクリ−１〜
の性能上大きな欠点どなっ゛くいた。さらに、水中コン
クリ−１〜を打設づる場合は、従来は非通水性型わくを
使用しているが、波浪や水流が型わくの面に作用するの
で、型わくの型組みが困難であり、組ｉｖだ型わくもそ
の後波浪や水流にＪこりその形態を保持覆るのが容易で
なく、また型わく内に打設づる際に生じる撹乱流が型わ
く内の二１ンクリー］・を撹拌し、ヒメンｉ・分を分離
さけ、かつコンクリートのｔＪ段１１ｉ’ｌに落下する
コンクリ−１・の間に水を挾み込み、この水のためにコ
ンクリ−１〜が連続状態で固結されない部分を生じ強度
の低下を生じる欠点があった。When pouring 1 concrete in 1 C1 water, 1 concrete is washed by water and 1-min of cement separates from the concrete and evaporates into the water, resulting in a significantly low strength of concrete. Concrete (8) has the disadvantage of being unreliable, and to prevent this, thickening agents have been added to concrete (1). Because it is expensive, the price of the thickening agent is the same as or more than Concrete 1, which has the disadvantage of increasing the monthly cost, and Concrete 1, which contains a molecular thickening agent, does not include this. Compared to concrete 1, it tends to solidify closer and its strength is lower, and these points are different from underwater concrete 1 to 1.
There were many major drawbacks in terms of performance. Furthermore, when pouring underwater concrete 1~, conventionally a water-impermeable mold is used, but waves and water currents act on the surface of the mold, making it difficult to assemble the mold. Afterwards, the oval mold frame also becomes stiff due to waves and water currents, making it difficult to cover and retain its shape, and the turbulent flow that occurs when pouring into the mold frame stirs up the concrete inside the mold frame. Then, water is inserted between the concrete 1 and falling on the concrete tJ stage 11i'l, and the concrete 1 is not solidified in a continuous state due to this water. This had the disadvantage of causing cracks and a decrease in strength.
この発明は、これらの欠点を除去し、水中における型わ
く工事を確実容易１にし、強度（１（下のない信頼１！
Ｉのあるコンクリートを打設して防波堤を短１１１１間
に安価に構築づる場所打ち工法を提供づることを目的と
乃るものである。This invention eliminates these drawbacks, makes underwater mold frame work reliably easy, and has strength (1) (unprecedented reliability!
The purpose of this project is to provide a cast-in-place construction method for constructing a breakwater in a short period of time and at low cost by pouring concrete with I.
この発明は、型わくに通水性の型わくを使用し、粘稠剤
としてＵメントのＯ６゛１〜３川ｍ％のポリアクリルア
ミド系高分子化合物をコンクリ−１−に混入し、第１番
［ｌのブを明にＪ３いては、さらにジアルデヒドを、第
２番目の発明にＪ３いてはアルカリ金属またはアルカリ
土類金属の次亜塩素酸ＪＭまたは次亜臭素酸塩を混入し
Ｉζ生コンクリ−１・を水中の型わく内に１１設りる防
波堤の場所１Ｊら−に法である。In this invention, a water-permeable mold frame is used, and a polyacrylamide-based polymer compound of 1 to 3 m% of O6 of U-ment is mixed into the concrete 1- as a thickening agent. [In the second invention, J3 clearly mixes dialdehyde, and in the second invention, hypochlorous acid JM or hypobromite of an alkali metal or alkaline earth metal is added to Iζ fresh concrete. -1 is the law for locations 1J and 11 of breakwaters that are built within underwater mold frames.
以下、この発明について実施例に従って説明覆る。Hereinafter, this invention will be explained according to examples.
二１ンクリー１−の配合を第′１表のＪこうに定め！、
：。The composition of 21 Ink 1- is determined as J in Table '1! ,
:.
第１表
上記の配合の二ｌンクリートに対してポリアクリルアミ
ド部分加水分解物をＬメン１−ｍｆｆ１比で０゜１．０
．４．０．６．０．８．１．５．２．０゜３．０％それ
ぞれ添加し練り混「た後、これらの−］ンクリー１〜に
イれ−「れグルタル７リアクリルアミド部分加水分解物
の０．１〜２０川１ｎ％添加１ノでさらに練り混Ｋ ｌ
＝ ａ１径２Ｑｃｍ。Table 1: Polyacrylamide partial hydrolyzate was added to the 2-liter concrete of the above composition at a ratio of 1-mff1 of 0°1.0
．． 4. Add 0.6.0.8.1.5.2.0゜3.0% and knead. Further kneading with addition of 0.1 to 20 1n% of decomposition product is carried out.
= a1 diameter 2Qcm.
深さ２０ＣＩ１１の円筒形容器に１６ＣＩｌｌの深さま
で水を満たし、直（￥が下部′Ｃ″５ ０ｍ，上部で７
ｃｍ，深さ８Ｃ「の円ｔＩＦ台形の容器に満たした上記
のコンクリートを上記円筒形容器の水面上１０（４ｍの
位置から自然落下さけ、水の濁りを光電光度計を用い６
６０ｍμの波長で測定して透過率を比較しｌ〔。A cylindrical container with a depth of 20 CI11 is filled with water to a depth of 16 CIll, and the water is poured directly (the lower part is 50 m, the upper part is 7 m).
The above concrete filled in a circular tIF trapezoidal container with a depth of 8 cm and a depth of 8 C was poured from a position of 10 m (4 m) above the water surface of the cylindrical container, and the turbidity of the water was measured using a photometer.
The transmittance was compared by measuring at a wavelength of 60 mμ.
また、上記のコンクリ−１・から直径１５ｃｍ，高さ３
０ＣＩ１１の円柱形の供試体を採取し、材令２ ８ Ｅ
ｌまＣ２０℃の水中で養生した後、Ｊ１縮強度を測定し
た。そのＣ１果は第２表に承りとおりである。Also, from the above concrete 1. diameter 15 cm, height 3
A cylindrical specimen of 0CI11 was collected, and the material age was 28E.
After curing in water at 20° C. for 1 hour, J1 shrinkage strength was measured. The C1 results are shown in Table 2.
この実施例から、（イ）グルタルアルデヒドの添加にＪ
：つ′（透過率が格段に改善される。（口）透過率を９
５％と設定した場合、ｔｌｌにポリアクリルアミド部分
加水分解物を添加したときには、レノシミ−重徂で２．
０％以上必要であるが、グルタルアルデヒドをポリアク
リルアミド部分加水分解物の゛１．０川吊％添加するこ
とによって必要なポリアクリルアミド部分加水分解物の
ｆＧｌをレメント重用比で０．６％（ずなわら、゛１／
３以下）ま乙・低減りることができる。（ハ）グルタル
アルデヒドの添加は強度を増加させるものであることが
明第２表
らかである。From this example, (a) J
:T'(Transmittance is greatly improved.(mouth) Transmittance is 9
When set to 5%, when polyacrylamide partial hydrolyzate is added to TLL, 2.
However, by adding glutaraldehyde to the polyacrylamide partial hydrolyzate by 1.0%, the required fGl of the polyacrylamide partial hydrolyzate can be reduced to 0.6% (element weight ratio). Nawara,゛1/
3 or less) can be reduced. (c) It is clear from Table 2 that the addition of glutaraldehyde increases the strength.
次に、ポリアクリルアミド部分加水分解物をセメンｌ−
！Ｊｌ比０．１．０．４．０．６． ｏ、８゜１．５．
２．０．及び３．０％それぞれ添加し練り混ビた前記と
同様のコンクリ−１−にそれぞれ次亜塩素酸ソーダをボ
リノ７クリルノ７ミド部分加水分解物の１０〜’１５ｆ
ｆｔ１％だ（Ｊ添加してさらに練り沢「これから＝１ン
クリー］・の一部を取り出し、直径が下部′Ｃ−５ｃｒ
ｎ、上部で７ｃｍ、深さ８ｃＩｌｌの円錐台形の容器に
満たしたコンクリ−１−を直径２０ｃｍ。Next, the polyacrylamide partial hydrolyzate was added to cement l-
! Jl ratio 0.1.0.4.0.6. o, 8°1.5.
2.0. and 3.0% of sodium hypochlorite was added to the same concrete 1 as above and kneaded.
ft1%.
A truncated cone-shaped container with a diameter of 20 cm and a diameter of 7 cm at the top and a depth of 8 cIll is filled with concrete.
深さ２（３ｃｍの円筒形容器の深さ’１５ｃｍまで満た
した水の水面から１０ｃｍの１１７首から自然落下さｕ
１水の濁りを光電光度に１を用い’Ｉ’ ６６０ ｒ１
１μの波長く゛測定して透過率を比較した。Depth 2 (a 3cm cylindrical container is filled to a depth of 15cm with water falling naturally from a 117 neck 10cm above the surface of the water)
1 Use 1 for photoelectric intensity for turbidity of water 'I' 660 r1
The transmittance was compared by measuring the wavelength of 1μ.
また、上記のコンクリ−１・がら直径１５ｃｍ、高さ３
０ｃｍの円４１形の供試体を採取し、材令２８［１まで
２０℃の水中ぐ養生した後、圧縮強度を測定しｌＣ０そ
の結果は第３表に示ＪとＪ３りである。In addition, the concrete 1 mentioned above has a diameter of 15 cm and a height of 3
A 0 cm circular 41-shaped specimen was taken, and after curing in water at 20°C until the material age was 28 [1], the compressive strength was measured, and the results are shown in Table 3, J and J3.
この大流側から、次亜塩素酸ソーダの添加によって（イ
）透過率が格段に改善される。（Ｉｊ ）逍第 ３
表
過串を９５９６と設定した場合、甲にポリアクリルアミ
ド部分加水分解物を添加したときには、廿メンｌ−ｍ
７１ ’ｔ” ２０％以上必要であるが、次亜塩素酸ソ
ーダをポリアクリルアミド部ブ）加水分解物の２０重量
％添加づることによつ−ｒ：４！１ａなポリアクリルア
ミド部分加水分解物の吊をセメン１−重量比で０．６％
（りなわら、１／３以下）まで低減づることができる。By adding sodium hypochlorite from this large stream side, (a) the transmittance is significantly improved. (Ij) Shodai 3
When the surface thickness is set to 9596, when the polyacrylamide partial hydrolyzate is added to the upper layer, the
71 't'' 20% or more is necessary, but by adding 20% by weight of sodium hypochlorite to the polyacrylamide partial hydrolyzate -r:4!1a polyacrylamide partial hydrolyzate Hanging with cement 1 - 0.6% by weight
(or less than 1/3).
（ハ）次亜塩素酸ソーダの添加はコンクリ−１−の強度
にはほとんど悪影響を及ぼさない程度Ｃあることが明ら
か゛（ある。(c) It is clear that the addition of sodium hypochlorite has a degree C that has almost no adverse effect on the strength of concrete 1-.
」−記の＝１ンクリー１〜のうら、ポリアクリルアミド
部分加水分解物をヒメントの０．８車ｍ％添加し、さら
にグルタルアルデヒドをポリアクリルアミド部分加水分
解物の０．５ｆｆ！ｆｆ１％添加して練り「コ「たスラ
ンプ２１ ａｍの＝１ンクリート（イ）と、上記のグル
タルアルデヒドの代わりに次亜塩素酸ソーダをポリアク
リルアミド部分加水分解物の゛１０重■％添加して練り
ｔｌ？ぜたスランプ２０ＣＩ１１のコンクリート（目）
とを使用し゛〔次のような実験を行った。” - In the bottom of the column 1~, add 0.8 m% of polyacrylamide partial hydrolyzate to the amount of hymento, and further add 0.5ff of glutaraldehyde to the polyacrylamide partial hydrolyzate! Add 1% of ff and knead it.Slump 21 am = 1crete (a) and add 10wt% of polyacrylamide partial hydrolyzate with sodium hypochlorite instead of the above glutaraldehyde. Kneaded tl?zeta slump 20CI11 concrete (eye)
The following experiment was conducted using
図面に承りように水深ξ５Ｑｃｍの流水１中に、直径２
．（３ｍｍのメツシュ筋で２５ ｍｍｘ ２５ ｍｍの
メツシー１に織成した金網２を１辺６００ｍの正方形の
型１つく３とし、これを型わく受り４，４の間に挿入し
てレットし、ぞ〜の中に前記の」ンクリー１−（イおＪ
：ひコンクリ−１〜（０）を水中自由落下により打設し
、紬固めはバイブ゛レータで行った。As shown in the drawing, in flowing water 1 with a water depth ξ5Qcm, a diameter 2
．． (A wire mesh 2 woven into a mesh 1 of 25 mm x 25 mm with 3 mm mesh stripes is used as a square mold 3 with a side of 600 m, and this is inserted between the mold frame supports 4 and 4, and then In ~, the above mentioned
: Concrete 1 to (0) were poured by free fall in water, and hardening was performed using a vibrator.
この実験におい（、コンクリ−１−１１込み中、型わく
内の凹ンクリート投入にＪ、る撹乱は起らｆ、水ｉ＆Ｅ
があるにもかかわらず、型わく内に（よ撹拌状態は牛「
ず水に濁りはほどんど認められなかつＩこ。In this experiment (during concrete 1-11, no disturbance occurred during the pouring of concrete into the mold frame).
Despite the fact that there is
I hardly notice any turbidity in the water.
また、実験で使用した型わくのメツシュの大きさは、こ
れに限らず、型わく内のＴＩフンリー１−が外へ流出し
ない大きさ以十であれば使用することができ、Ｊ：だ打
設方法は水中自由落下に限らず、１〜レミーまたはコン
クリ−１−ポンプを一使用Ｊることができる。In addition, the size of the mesh of the mold frame used in the experiment is not limited to this, and any size that does not allow the TI Funly 1- in the mold frame to leak out can be used. The installation method is not limited to underwater free fall, but can also use one Remy or one concrete pump.
前記の実験にＪ：れば、＝１ンクリー１−を水中にＪＪ
設してもレノ２１〜分の流出はほとんどなく、フンクリ
−１〜（イ）、（ロ）いずれの場合にＪ３いてもポリア
クリルアミド部分加水分解物の添加ｍをポリアクリルア
ミド部分加水分解物のみの場合の１／３以下としても必
要強度を１ｆＪることができる。In the above experiment, J: = 1 ink 1- in water JJ
Even if the polyacrylamide partial hydrolyzate is added, there is almost no outflow of Reno 21 ~ in either case of Funkuri 1~ (a) or (b), the addition m of the polyacrylamide partial hydrolyzate is reduced to only the polyacrylamide partial hydrolyzate. Even if it is less than 1/3 of the case, the required strength can be reduced by 1 fJ.
この発明にＪ：れば、コンクリートに粘稠性が付与され
、水中Ｃも分離しない（’Ｉ ？’［が高められるとど
もに、ジアルデヒド類またはアルノＪり金属の次！Ｉｔ
ｔ塩晃酸塩（アルカリ金属の次亜奥′ｆ、酸塩およびア
ルカリ上金属の次亜塩素Ｍ塩または次亜臭素酸塩でも略
同様の結果が１９られる。）の添加により、ポリアクリ
ルアミド系高分子化合物の添加量を大幅に減少さＵるこ
とがでさ、従来より通かに安価でしかも、強度の高いも
しくは強度低下のない水中コンクリ−１へが１１１られ
る効果があり、また、通水性型わくを用いることににす
、コンクリ−１〜打込みによって生ずる撹乱流を型わく
外へ逃かりことができるので型わく内に撹乱流が生じる
のを防止でき、かつ打設したコンクリ−１−内部に挾み
込まれた水は周囲の通水性型わくから外部へ流出づるこ
とができるので、非連続部分を生じることがなく、通水
性型わくであるためＩｆｆ ｆｆｌとなり、波浪や流水
に対する抵抗が小さいので型組みが容易で、型わくが波
浪や流水にＪζつて崩れる恐れがなく工事の施１が容易
となる。This invention imparts consistency to the concrete and prevents separation of C in water ('I?' [is increased, next to dialdehydes or alno metals!
By adding t-salt salts (alkali metal hypochlorites, acid salts, and alkali metal hypochlorite M salts or hypobromites, substantially the same results can be obtained), polyacrylamide-based It is possible to significantly reduce the amount of polymer compounds added, which has the effect of creating underwater concrete that is much cheaper than conventional concrete and has high strength or no decrease in strength. By using a water-based mold, the turbulent flow generated by pouring can escape to the outside of the mold, preventing turbulent flow from occurring inside the mold, and concrete 1 after pouring. - Water trapped inside can flow out from the surrounding water-permeable frame, so there is no discontinuity, and since the water-permeable frame is Iff ffl, it is resistant to waves and running water. Since the resistance is small, it is easy to assemble the mold, and there is no fear that the mold frame will collapse due to waves or running water, making construction work easier.
特に、波浪や潮流にＪ：る影響をはなはだしく受（Ｊる
防波堤にＪ３いては、型１）りの設置、型相形態のｔ「
持が困デ１１であり、また通常の水中コンクリ−１〜で
は茗しくコンクリ−１・の分１’ｉｌ 、 セメン１−
分の逸散が生じコンクリ−１−の強度低下が極め゛（大
であるが、この発明にＬ１３いては通水性型わくにＪ：
る波浪や潮漏による撹拌流の防止、非連続部分の発生防
止効果と、選択された粘稠剤の使用にＪ：る優れたコン
クリ−１〜の分離防止Ｊ３よび強度低Ｆ防止効甲という
特殊な型わくおよび粘稠剤との相乗効果により、水中に
おける場所打もの防波堤の施１にＪ３いて強度の低下が
ないので防波堤の耐力構造どなる厚さを従来のものより
小にりることができるので、作業ｆｌｌも少なく、−１
ンクリー１−の爪も少なく ”（リ−み、場所打ちであ
るのでケーソン式沢合促のＪこうに余分な設置ぜ＾や養
生場所、仮設費、曳航、据（Ｎ１作業の必要がなく、工
期が短期間で施工でき］−費も安価にＪむという顕熱な
効果を奏Ｊるものである。In particular, the installation of breakwaters, which are extremely affected by waves and currents (for J3 breakwaters, type 1),
The durability is 11 times longer, and ordinary underwater concrete is 1'il thicker than concrete 1.
However, in this invention, the water-permeable type frame J:
It has the effect of preventing stirring flows caused by waves and tide leakage, preventing the occurrence of discontinuous parts, and the use of selected thickening agents. Due to the synergistic effect of the special mold frame and viscosity agent, there is no decrease in the strength of breakwaters cast in place under water, so the thickness of the load-bearing structure of the breakwater can be made smaller than conventional ones. Because it can be done, there is less work, -1
There are also fewer nails for concrete 1. (Since it is cast in place, there is no need for extra installation, curing space, temporary construction costs, towing, installation (N1 work), It can be constructed in a short period of time and has the sensible effect of being inexpensive.
図面は、この発明の実施例を示づもので第１図は平面図
、第２図ｉ；Ｌ側面図、第３図は型わく受（Ｊの斜面図
である。
′１・・・流水、２・・・金網、３・・・型わく、４・
・・型わく受 （〕 。
特８′［出願人
株式会社 竹 中 １ 務 店
（ほか２名〉
代 理 人 弁理士 坂 打
消第 １ 図
第 ３ 図
第１頁の続き
０発 明 者 下山刃文
藤沢重下上棚３１３番地７
■出 願 人 株式会社竹中土木
東京都中央区銀座８丁目２１番１
号
■出 願 人 三共化成工業株式会社
東京都中央区銀座３丁目９番１９
号
手 続 補 正 書
昭和５８年１０月３１日
特許庁長官 若 杉 和 夫 殿
１、事件の表示
昭和５７年特許願第１９７６１７号
２、発明の名称 防波堤の場所打ち工法３、補正を
する者
事件どの関係 特 許 出願人
住所 大阪府大阪市東区本町４丁目２７番地名称 （３
Ｇ２＞ 株式会社 竹中工務店代表者 竹 中 統
−（ばか２名）４、代理人〒１０５
住所
氏名
５、補正向
６、補正により増加する発明の数 な し７、補正の
対象 願 書The drawings show an embodiment of the present invention. Fig. 1 is a plan view, Fig. 2 is a side view of L, and Fig. 3 is a slope view of the mold frame holder (J. , 2... wire mesh, 3... mold frame, 4...
...Katawaraku Uke ().Special 8' [Applicant Takenaka Co., Ltd. 1 Muten (and 2 others) Agent Patent Attorney Saka Uke No. 1 Figure 3 Continued from Figure 1 page 0 Inventor Shimoyama 313-7, Habun Fujisawa Shigeshita Kamidana ■Applicant: Takenaka Doki Co., Ltd., 8-21-1 Ginza, Chuo-ku, Tokyo ■Applicant: Sankyo Kasei Kogyo Co., Ltd., No. 3-9-19, Ginza, Chuo-ku, Tokyo Procedure: Amendment Written by Kazuo Wakasugi, Commissioner of the Patent Office, October 31, 19801, Indication of the case, Patent Application No. 197617, filed in 19822, Title of the invention, Cast-in-place construction method for breakwaters3, Person making the amendment, Relationship between the case and Patent Applicant Address 4-27 Honmachi, Higashi-ku, Osaka-shi, Osaka Name (3
G2> Takenaka Corporation Representative Osamu Takenaka - (2 idiots) 4, Agent 〒105 Name and address 5, Direction of amendment 6, Number of inventions to be increased by amendment None 7, Subject of amendment Application
Claims (1)
メン１〜のＯ０′１〜ζ■」％のボリノ′クリルアミド
系高分子化合物とポリアクリルシフミド系高分子化合物
の０，１〜２０小ｆｆｉ％のジアルデヒド類とを＝ｌン
クリートに混入して練った生二Ｊンクリートを前記型わ
く内に打設する防波堤の場所打ち工法。 ２、ジアルデヒド類がグルタルアルデじドＴ：ある特許
請求の範囲第１項記載の防波堤の場所打ち］口演。 ３、通水性型わくが全網製である特許請求の範囲第１項
８または第２項記載の防波堤の場所打ら」−法。 ４、水中に通水性型わくで防波堤の型わくを形成し、セ
メン１−の０．１〜３ｍｍ％のポリアクリルアミド系高
分子化合物とポリアクリルアミド系高分子化合物の１０
〜５０重量％のアルカリ金属またはｊ！ルカリ土金属の
次亜塩素酸塩または次亜臭素酸塩をコンクリ−１〜に混
入して練った生コンクリー１〜を前記型わく内に打設す
る防波堤の場所打も」法。 ５、通水性型わくが全網製である特許請求の範ｕ１１第
４項記載の防波堤の場所打ら工法。[Scope of Claims] 1. A breakwater mold frame is formed with a water-permeable mold frame in water, and a borino'acrylamide-based polymer compound and a polyacrylicifumide-based polymer compound with an O0'1~ζ% of cement 1~ A cast-in-place construction method for a breakwater in which raw concrete, which is prepared by mixing 0.1 to 20% of dialdehydes of molecular compounds in concrete, is poured into the mold frame. 2. Dialdehyde is glutaraldehyde T: Place casting of a breakwater according to claim 1] Oral presentation. 3. The method for constructing a breakwater according to claim 1, claim 8 or claim 2, wherein the water-permeable frame is entirely made of net. 4. Form a breakwater mold frame in water with a water-permeable mold frame, and add 0.1 to 3 mm% of polyacrylamide-based polymer compound of cement 1-1 and 10-10 of polyacrylamide-based polymer compound.
~50% by weight of alkali metal or j! A method for placing a breakwater in place, in which ready-mixed concrete 1~ mixed with concrete 1~ mixed with hypochlorite or hypobromite of alkali earth metal is poured into the mold. 5. The cast-in-place construction method for a breakwater according to claim 4, wherein the water-permeable frame is entirely made of mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57197617A JPS5988511A (en) | 1982-11-12 | 1982-11-12 | On-site placement work of breakwater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57197617A JPS5988511A (en) | 1982-11-12 | 1982-11-12 | On-site placement work of breakwater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5988511A true JPS5988511A (en) | 1984-05-22 |
Family
ID=16377451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57197617A Pending JPS5988511A (en) | 1982-11-12 | 1982-11-12 | On-site placement work of breakwater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5988511A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6199719U (en) * | 1984-12-06 | 1986-06-26 | ||
| US10316469B2 (en) | 2014-12-16 | 2019-06-11 | Ecolab Usa Inc. | On-line control and reaction process for pH adjustment |
-
1982
- 1982-11-12 JP JP57197617A patent/JPS5988511A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6199719U (en) * | 1984-12-06 | 1986-06-26 | ||
| US10316469B2 (en) | 2014-12-16 | 2019-06-11 | Ecolab Usa Inc. | On-line control and reaction process for pH adjustment |
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