JPH0363315A - Underground construction of artificial banking or underground structure - Google Patents
Underground construction of artificial banking or underground structureInfo
- Publication number
- JPH0363315A JPH0363315A JP20004289A JP20004289A JPH0363315A JP H0363315 A JPH0363315 A JP H0363315A JP 20004289 A JP20004289 A JP 20004289A JP 20004289 A JP20004289 A JP 20004289A JP H0363315 A JPH0363315 A JP H0363315A
- Authority
- JP
- Japan
- Prior art keywords
- manufacturing unit
- underwater
- mixture
- aggregate
- unit device
- 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.)
- Granted
Links
- 238000010276 construction Methods 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 8
- 239000004568 cement Substances 0.000 claims description 7
- 239000002734 clay mineral Substances 0.000 claims description 7
- 238000004898 kneading Methods 0.000 claims description 2
- 239000002131 composite material Substances 0.000 abstract description 8
- 239000002002 slurry Substances 0.000 abstract description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 2
- 239000011707 mineral Substances 0.000 abstract 2
- 239000004567 concrete Substances 0.000 description 17
- 238000000926 separation method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Landscapes
- Underground Or Underwater Handling Of Building Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、海洋土木分野における人工盛土又は水中構築
物の造成方法に関し、特に、港湾整備、沖合人工島、ウ
ォーターフロント等における人工地盤の造成方法に関す
る。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for constructing artificial embankments or underwater structures in the field of marine civil engineering, and in particular, a method for constructing artificial ground for port development, offshore artificial islands, waterfronts, etc. Regarding.
〔従来の技術及び発明が解決しようとする課題〕従来、
水中における人工地盤の造成方法としては、いわゆる水
中コンクリート工法と埋立地盤工法の２つがあった。[Problems to be solved by conventional techniques and inventions] Conventionally,
There are two methods for creating artificial ground underwater: the underwater concrete method and the reclaimed ground method.
このうちプレパクトコンクリート工法、トレミー工法、
パケット工法等に代表される水中コンクリート工法は、
埋立地盤工法と比較して高強度の人工地盤を造成するこ
とができるので、造成すべき人工地盤の要求強度が高い
場合に適している。Among these, the prepact concrete method, the tremie method,
Underwater concrete construction methods, such as the packet construction method, are
Since it is possible to create artificial ground with higher strength than the reclaimed ground method, it is suitable when the required strength of the artificial ground to be created is high.
しかしながら、従来の水中コンクリート工法では、コン
クリートが材料分離し易く、又、ブリージングの発生す
る可能性があるため品質上の問題があった。また、水中
でコンクリートを施工するため水質汚染のおそれがあり
環境保全上の問題があった。However, in the conventional underwater concrete construction method, there are quality problems because the concrete tends to separate and there is a possibility that breathing may occur. In addition, since concrete is constructed underwater, there is a risk of water pollution, which poses an environmental conservation problem.
従来の水中コンクリート工法におけるかかる問題を解決
するため開発された工法として、特殊水中コンクリート
工法がある。この工法は、水溶性高分子系の特殊混和剤
をコンクリートに添加してセメント、骨材を粘着させる
もので、水の洗い作用を受けても材料分離の極めて少な
い均質なコンクリートが得られる。しかしながら、特殊
水中コンクリート工法は、コストが高いという欠点があ
った。A special underwater concrete method has been developed to solve these problems in conventional underwater concrete methods. This method involves adding a special water-soluble polymer admixture to concrete to make cement and aggregate stick together, resulting in homogeneous concrete with very little separation of materials even when washed with water. However, the special underwater concrete method has the drawback of high cost.
さらに、特殊水中コンクリート工法を含めた従来の水中
コンクリート工・法に共通する欠点として、空気中でコ
ンクリートを製造して海底部までポンプ圧送したりトレ
ミー管で搬送したりするため、製造能力、搬送能力に制
約があり、大量施工、低コスト化には不向きであった。Furthermore, a common drawback of conventional underwater concrete construction and methods, including special underwater concrete construction methods, is that concrete is produced in the air and then pumped to the seabed or transported using tremie pipes, which reduces production capacity and transportation. Due to limited capacity, it was not suitable for mass construction or cost reduction.
一方、埋立地盤工法は水中コンクリート工法と比較して
廉価であるという利点があるが、低強度であるので地震
時に地盤が液状化するおそれがある。On the other hand, the reclaimed ground construction method has the advantage of being cheaper than the underwater concrete construction method, but because it has low strength, there is a risk that the ground will liquefy during an earthquake.
本発明は上述の従来技術の欠点を解消するために考案さ
れたものであり、従来の水中コンクリート工法で得られ
る程の強度は必要ないが液状化に対して抵抗性の高い人
工地盤の造成に適用するのに特に適している。The present invention was devised to eliminate the drawbacks of the prior art described above, and is useful for creating artificial ground that does not require as much strength as the conventional underwater concrete method, but is highly resistant to liquefaction. Particularly suitable for application.
従来技術における上述の課題を解決するために、本発明
により、骨材と粘土鉱物及び水硬性組成物とを、水中に
配置された製造用ユニット装置まで搬送し、前記の骨材
と粘土鉱物及び水硬性組成物とを、製造用ユニット装置
内部に設けられた複数段の撹拌手段で混練し、製造用ユ
ニット装置の混練物吐出口を所望の位置に移動させ、製
造された混練物を所望の個所に吐出することを特徴とす
る人工盛土又は水中構築物の水中造成工法が提供される
。In order to solve the above-mentioned problems in the prior art, according to the present invention, aggregates, clay minerals and hydraulic compositions are conveyed to a production unit device placed in water, and the aggregates, clay minerals and The hydraulic composition is kneaded with a multi-stage stirring means provided inside the manufacturing unit, and the kneaded material discharge port of the manufacturing unit is moved to a desired position, and the manufactured kneaded material is mixed into a desired position. Provided is an underwater construction method for an artificial embankment or underwater structure, which is characterized by discharging soil at locations.
第１図には、本発明の水中造成工法の全体概略図が示さ
れている。FIG. 1 shows an overall schematic diagram of the underwater construction method of the present invention.
第１図に従って、本発明の水中造成工法の全体について
説明する。水上の作業台船１には、骨材を貯留するため
の骨材貯留用ホッパ２が設置されており、ホッパ２の下
部には骨材排出口３が取付けられている。この骨材排出
口３には、水中の骨材散布装置６まで延びた骨材輸送管
４が連結されている。又、この輸送管４には、骨材スラ
リー化装置５が連結されており、該装置５でスラリー化
された骨材が骨材散布装置６まで搬送される。The entire underwater construction method of the present invention will be explained with reference to FIG. An aggregate storage hopper 2 for storing aggregate is installed on a floating work barge 1, and an aggregate discharge port 3 is attached to the lower part of the hopper 2. An aggregate transport pipe 4 extending to an underwater aggregate dispersion device 6 is connected to the aggregate discharge port 3. Further, an aggregate slurry forming device 5 is connected to this transport pipe 4, and the aggregate slurried by the device 5 is transported to an aggregate spreading device 6.
骨材散布装置６の下部には、複合材料の混練物を製造す
るための製造用ユニット装置７が連結されている。A manufacturing unit device 7 for manufacturing a kneaded composite material is connected to the lower part of the aggregate distribution device 6.
なお、第１図において、実線で示した製造用ユニット装
置は水中に降ろされた状態を、鎖線で示した製造用ユニ
ット装置は水上に上げた状態をそれぞれ示している。In FIG. 1, the manufacturing unit device shown by a solid line is lowered into water, and the chain line shows a manufacturing unit device raised above water.
次に第２図及び第３図を参照して、製造用ユニット装置
７の詳細について説明する。Next, details of the manufacturing unit device 7 will be explained with reference to FIGS. 2 and 3.
製造用ユニット装置７は、搬送された骨材を骨材散布装
置６から受は入れるための水中部ホッパ１１と、該ホッ
パ１１の下部に位置決めされた撹拌手段１２と、撹拌手
段１２からの複合材料の混練物の吐出を制御するための
スライドゲート１３と、複合材料の混練物を吐出するた
めのスクリューコンベヤ１４とを有し、スクリューコン
ベヤの先端には吐出口１５が設けられている。撹拌手段
１２は撹拌翼からなり、複合材料の混練時間を確保する
ため、複数段（第２図及び第３図では３段）の撹拌翼か
ら構成されている。又、スクリューコンベヤ１４は、吐
出口からの水の侵入を防止するため所定の長さを有して
おり、吐出口１５には先端蓋１６が取付けられている。The manufacturing unit device 7 includes an underwater hopper 11 for receiving the transported aggregate from the aggregate dispersing device 6, a stirring means 12 positioned at the lower part of the hopper 11, and a composite structure from the stirring means 12. It has a slide gate 13 for controlling the discharge of the kneaded material and a screw conveyor 14 for discharging the kneaded composite material, and a discharge port 15 is provided at the tip of the screw conveyor. The stirring means 12 is composed of stirring blades, and is composed of a plurality of stages (three stages in FIGS. 2 and 3) of stirring blades in order to ensure time for kneading the composite material. Further, the screw conveyor 14 has a predetermined length to prevent water from entering through the discharge port, and a tip end cap 16 is attached to the discharge port 15.
一方、水上のプラント船（図示せず）から、製造用ユニ
ット装置７の水中部ホッパＩｆの下部まで、水硬性組成
物及び粘土鉱物を供給するための管８が延びている。水
硬性組成物としては、ボルトランドセメント、混合セメ
ント、超速硬性セメント等があげられる。又、粘土鉱物
としては、ベントナイト等があげられる。On the other hand, a pipe 8 for supplying the hydraulic composition and clay mineral extends from a floating plant ship (not shown) to the lower part of the underwater hopper If of the manufacturing unit device 7. Examples of the hydraulic composition include boltland cement, mixed cement, and ultra-fast hardening cement. Moreover, examples of clay minerals include bentonite and the like.
次に、本発明の方法を使用して水中に人工地盤を造成す
る施工手順について説明する。Next, a construction procedure for creating an underwater artificial ground using the method of the present invention will be explained.
まず、製造用ユニット装置７を水上に上げ、先端蓋１５
を閉じた状態でスクリューコンベヤ１４に、製造すべき
混練生成物の品質とほぼ同等の品質の混練生成物を充填
する。次いで、製造用ユニット装置７のスライドゲート
１３を閉鎖した後、製造用ユニット装置７を人工地盤を
遺戒すべき水底部付近に降ろす。次いで、骨材を水中部
ホッパ１１の所定位置まで貯留する。次いで、スラリー
化した骨材と粘土鉱物及び水硬性組成物とを、作業台船
１とプラント船からそれぞれ搬送し、水中部ホッパ１１
に投入して、複数段の撹拌翼で混練する。次いで、先端
蓋１５を開放して複合材料の混練物を吐出する。以上の
作業を繰り返して、所望の個所に所望の量の複合材料の
混練物を吐出する。しかる後、作業台船ｌの位置および
製造用ユニット装置７の高さを調節することにより吐出
口の位置を移動させ、かくして、所望の位置に自由に人
工地盤を形成することができる。First, the manufacturing unit device 7 is raised above water, and the tip lid 15 is
In the closed state, the screw conveyor 14 is filled with a kneaded product of approximately the same quality as the kneaded product to be produced. Next, after closing the slide gate 13 of the manufacturing unit device 7, the manufacturing unit device 7 is lowered to near the bottom of the water where the artificial ground should be avoided. Next, the aggregate is stored at a predetermined position in the underwater hopper 11. Next, the slurry-formed aggregate, clay mineral, and hydraulic composition are transported from the work barge 1 and the plant ship, respectively, and transferred to the underwater hopper 11.
and knead with multiple stages of stirring blades. Next, the tip lid 15 is opened and the kneaded composite material is discharged. By repeating the above operations, a desired amount of the composite material kneaded material is discharged to a desired location. Thereafter, by adjusting the position of the work barge 1 and the height of the manufacturing unit device 7, the position of the discharge port can be moved, and thus the artificial ground can be freely formed at a desired position.
以上説明したように、本発明を使用することにより水中
内での固化組成物の分離・拡散が極めて少なくなるため
、混練生成物の強度低下が防止されるとともに水質汚染
のおそれが殆どなくなる。As explained above, by using the present invention, the separation and diffusion of the solidified composition in water is extremely reduced, thereby preventing a decrease in the strength of the kneaded product and almost eliminating the risk of water pollution.
また、製造用ユニット装置内で連続して混練することが
できるので大量施工が可能になり、特殊水中コンクリー
ト工法の高分子分離抵抗剤を使用しないため低コストで
施工することができる。また、製造用ユニット装置が作
業台船と連結されているので、水面上で製造用ユニット
装置を操作することにより所望の位置に自由に人工地盤
を形成することができる。さらに、製造された人工盛土
や水中構築物は、地震時の液状化に対して抵抗性がある
。In addition, since it can be continuously kneaded in the production unit equipment, large-scale construction is possible, and because it does not use a polymer separation resistance agent in special underwater concrete construction, it can be constructed at low cost. Further, since the manufacturing unit device is connected to the work barge, the artificial ground can be freely formed at a desired position by operating the manufacturing unit device on the water surface. Furthermore, manufactured artificial embankments and underwater structures are resistant to liquefaction during earthquakes.
本発明は以上のような効果を奏するものであり、海洋土
木分野における人工盛土、水中構築物の遺戒において、
広い利用が期待されるものである。The present invention has the above-mentioned effects, and is suitable for artificial embankments and underwater structures in the field of marine civil engineering.
It is expected that it will be widely used.
第１図は本発明の水中造成工法の全体概略図、第２図は
製造用ユニット装置の正面図、第３図は製造用ユニット
装置の側面図（先端蓋を閉じた状態）である。
■。
明細書第７頁第１行及び第２行の
“先端蓋
を
「先端蓋１
」
に補正する。
２゜
明細書第７頁第１
２行の
“先端蓋１
５”
をFIG. 1 is an overall schematic diagram of the underwater construction method of the present invention, FIG. 2 is a front view of the manufacturing unit device, and FIG. 3 is a side view of the manufacturing unit device (with the tip lid closed). ■. Correct "Tip cap 1" in the first and second lines of page 7 of the specification to "Tip cap 1." 2゜Specification, page 7, line 1, 2, “Tip lid 15”
Claims (3)
置された製造用ユニット装置まで搬送し、前記の骨材と
粘土鉱物及び水硬性組成物とを、製造用ユニット装置内
部に設けられた複数段の撹拌手段で混練し、製造用ユニ
ット装置の混練物吐出口を所望の位置に移動させ、製造
された混練物を所望の個所に吐出することを特徴とする
人工盛土又は水中構築物の水中造成工法。(1) Transport the aggregate, clay mineral, and hydraulic composition to a manufacturing unit device placed in water, and transfer the aggregate, clay mineral, and hydraulic composition into the manufacturing unit device. Artificial embankment or submerged earth characterized by kneading with a multi-stage stirring means provided, moving the kneaded material discharge port of the manufacturing unit device to a desired position, and discharging the manufactured kneaded material to the desired location. Underwater construction method for structures.
を特徴とする請求項（１）に記載の方法。(2) The method according to claim (1), wherein the hydraulic composition is Bortland cement.
する請求項（１）に記載の方法。（４）水硬性組成物は
超速硬性セメントであることを特徴とする請求項（１）
に記載の方法。(3) The method according to claim (1), wherein the hydraulic composition is a mixed cement. (4) Claim (1) characterized in that the hydraulic composition is an ultra-fast hardening cement.
The method described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1200042A JPH0678623B2 (en) | 1989-08-01 | 1989-08-01 | Underwater construction method of artificial embankment or underwater structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1200042A JPH0678623B2 (en) | 1989-08-01 | 1989-08-01 | Underwater construction method of artificial embankment or underwater structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0363315A true JPH0363315A (en) | 1991-03-19 |
| JPH0678623B2 JPH0678623B2 (en) | 1994-10-05 |
Family
ID=16417864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1200042A Expired - Lifetime JPH0678623B2 (en) | 1989-08-01 | 1989-08-01 | Underwater construction method of artificial embankment or underwater structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0678623B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023006589A (en) * | 2021-06-30 | 2023-01-18 | Ｕｂｅ三菱セメント株式会社 | hydraulic composition |
| JP2023006592A (en) * | 2021-06-30 | 2023-01-18 | Ｕｂｅ三菱セメント株式会社 | Installation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01250527A (en) * | 1988-03-31 | 1989-10-05 | Sumitomo Constr Co Ltd | Casting method for earth or the like into water |
-
1989
- 1989-08-01 JP JP1200042A patent/JPH0678623B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01250527A (en) * | 1988-03-31 | 1989-10-05 | Sumitomo Constr Co Ltd | Casting method for earth or the like into water |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023006589A (en) * | 2021-06-30 | 2023-01-18 | Ｕｂｅ三菱セメント株式会社 | hydraulic composition |
| JP2023006592A (en) * | 2021-06-30 | 2023-01-18 | Ｕｂｅ三菱セメント株式会社 | Installation method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0678623B2 (en) | 1994-10-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10053830B2 (en) | Multi-tank onsite flowable fill system and related methods | |
| CN1165667C (en) | Method for filling cavities with aggregate | |
| CN216999559U (en) | Sea reclamation land reclamation hydraulic reclamation system based on high-water material-slurry composite body | |
| JP2004504518A5 (en) | ||
| CN201598610U (en) | Face plate rock-fill dam structure reasonably utilizing gravel sand | |
| US3990252A (en) | Earthworks consolidation system | |
| JP2018021378A (en) | Fluidized soil manufacturing method and transport method thereof | |
| CN110468784A (en) | A device for fluidized treatment of dredged silt and a method for preparing plant slopes | |
| JPH0363315A (en) | Underground construction of artificial banking or underground structure | |
| CN108149637A (en) | A kind of vertical bank revetment structure and its construction method | |
| CN105821888B (en) | Connect the earth-filling method and device of bank band | |
| EP2188455A1 (en) | Method and installation for erecting concrete structures in seawater | |
| CN114718015B (en) | Sea and land reclamation hydraulic reclamation system and method based on high-water material-slurry composite | |
| JP4491812B2 (en) | Embankment method using high water content specific viscosity soil | |
| CN210597200U (en) | A device for fluidized treatment of dredged sludge | |
| CN209397597U (en) | A Stirring Type Variable Diameter Anchor Rod | |
| CN100402798C (en) | Method of vulcanized slurry synchronous slip casting for subway shield | |
| CN207891894U (en) | Recoverable flexible compound supporting construction for coral reef foundation pit | |
| JP2016186167A (en) | Modifier mixing method into soft soil | |
| JP2001225037A (en) | Construction method of revetment work at the waste disposal site | |
| CN114351743B (en) | In-situ sand and gravel anti-seepage material preparation and water cut-off curtain construction method and device | |
| JP2895595B2 (en) | Landfill work boat | |
| CN111305160B (en) | Mechanical construction method for stone-laying dam | |
| CN114131764B (en) | A slurry mixing and conveying device for pile foundation rotary drilling and wall protection | |
| JPH01262999A (en) | Method for solidifying weak soil by pressure feed of air |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071005 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081005 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091005 Year of fee payment: 15 |
|
| EXPY | Cancellation because of completion of term |