JPS6327625A - Foundation construction work for underwater structure - Google Patents
Foundation construction work for underwater structureInfo
- Publication number
- JPS6327625A JPS6327625A JP61170791A JP17079186A JPS6327625A JP S6327625 A JPS6327625 A JP S6327625A JP 61170791 A JP61170791 A JP 61170791A JP 17079186 A JP17079186 A JP 17079186A JP S6327625 A JPS6327625 A JP S6327625A
- Authority
- JP
- Japan
- Prior art keywords
- underwater structure
- sheet material
- gap
- sheet
- underwater
- 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 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 63
- 238000002347 injection Methods 0.000 claims description 30
- 239000007924 injection Substances 0.000 claims description 30
- 239000004570 mortar (masonry) Substances 0.000 claims description 9
- 239000011440 grout Substances 0.000 abstract 4
- 239000011083 cement mortar Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Foundations (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は水中構造物の基礎施工方法に関するものである
。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for constructing the foundation of an underwater structure.
〈従来の技術〉
沈埋函やケーソン等の水中構造物を水底に据え付ける場
合、水底の凹凸と水中構造物の底面との間に発生する間
隙を放置すると水中構造物の安定性が悪くなるから、こ
の間隙を解消する必要がある。<Prior art> When installing an underwater structure such as a submerged box or a caisson on the bottom of the water, the stability of the underwater structure will deteriorate if a gap is left between the unevenness of the bottom and the bottom of the underwater structure. This gap needs to be resolved.
一般には、水底と水中構造物との間に、モルタルやセメ
ントミルク等の注入材を注入して間隙を解消している。Generally, an injection material such as mortar or cement milk is injected between the underwater bottom and the underwater structure to eliminate the gap.
ところで、注入材の注入に際して、水中構造物の周囲が
開放された状態で注入材を注入すると、せっか（注入し
たｉ主人材が水中構造物の側方に漏出してしまう。By the way, if the injection material is injected with the area around the underwater structure open, the injected material will leak out to the side of the underwater structure.
そこで注入材の漏出を規制する方法として次のような対
策が講じられている。Therefore, the following measures have been taken to control the leakage of the injection material.
（ａ）水中構造物の周囲に土のうを留み上げて遮蔽する
方法。(a) A method of shielding by piling up sandbags around underwater structures.
（ｂ）水中構造物の周囲に捨石や土砂等を埋戻して遮蔽
する方法。(b) Method of shielding by backfilling rubble, earth, etc. around underwater structures.
（ｃ）モルタル注入袋を用いる方法。(c) Method using a mortar injection bag.
く本発明が解決しようとする問題点〉
上記した各間隙の解消技術の場合、いずれら水中構造物
を沈設してから間隙を遮蔽するまでに相当の時間と手数
がかかり、そのうえ遮蔽した後にモルタル等を注入して
水中構造物を安定させるまでにはさらに日数を要し、施
工期間が長期化する傾向がある。Problems to be Solved by the Present Invention In the case of the above-mentioned techniques for eliminating the gaps, it takes a considerable amount of time and effort to cover the gaps after submerging the underwater structure, and in addition, mortar It takes an additional number of days to stabilize the underwater structure by injecting water, etc., which tends to prolong the construction period.
く本発明の目的〉
本発明はこのような問題点に鑑みなされたもので、間隙
の遮蔽に要する時間と手数を低減でき、さらに工期の短
縮化が可能な水中構造物の基礎施工方法を提供すること
を目的とする。OBJECTS OF THE INVENTION The present invention has been made in view of these problems, and provides a method for constructing foundations for underwater structures that can reduce the time and labor required for shielding gaps, and further shorten the construction period. The purpose is to
く本発明の構成〉
以下、図面を参照しながら本発明の一実施例について説
明する。Configuration of the Present Invention> An embodiment of the present invention will be described below with reference to the drawings.
くイ〉間隙の遮蔽方法
第１図に示すように、本発明では水底１と水中構造物２
の水面との間に発生する間隙３を遮蔽する方法として、
水中構造物２の下部に帯状のシート材４をスカート状に
取り付けることにより、水中構造物２を着底させたとき
にシート材４で間隙３を遮蔽する。Kui〉Gap shielding method As shown in Fig. 1, in the present invention, an underwater structure 2 is
As a method of shielding the gap 3 that occurs between the water surface and the water surface,
By attaching a band-shaped sheet material 4 like a skirt to the lower part of the underwater structure 2, the gap 3 is covered by the sheet material 4 when the underwater structure 2 is brought to the bottom.
そして、シート材４で遮蔽した間隙３内にモルタル等の
注入材５を注入して基礎工を行う方法を採用した。Then, a method was adopted in which foundation work was performed by injecting a pouring material 5 such as mortar into the gap 3 covered by the sheet material 4.
く口〉シート材
シート材４は可撓性を有し、かつ、モルタル等の注入材
の透過を規制し、水のみの透過を許容する寸法の多数の
微孔を開設しであるシートであり、例えば織布や網体、
樹脂製のシートを使用できる。Sheet material Sheet material 4 is a sheet that is flexible and has a large number of micropores sized to restrict the permeation of a pouring material such as mortar and allow the permeation of only water. , such as woven fabrics and nets,
Resin sheets can be used.
シート材４の上端を水中構造物２の側壁下部、あるいは
底面に取り付けるには、接着、ボルト止め、あるいはカ
ーテンレール方式等の公知の方法で固定する。In order to attach the upper end of the sheet material 4 to the lower side wall or bottom surface of the underwater structure 2, it is fixed by a known method such as gluing, bolting, or a curtain rail method.
また、シート材４の下端には、比較的重たい鎖等の重り
６を取り付ける。Further, a relatively heavy weight 6 such as a chain is attached to the lower end of the sheet material 4.
また、シート材４の裾幅は、発生予定の間隙３の高さの
２倍から３倍程度の長さとする。Further, the width of the hem of the sheet material 4 is approximately two to three times the height of the gap 3 that is expected to occur.
次に水中構造物の据え付は方法について説明する。Next, we will explain how to install underwater structures.
く１〉水中構造物の着底
沈埋函等の水中構造物２の側壁下部あるいは底面には、
前記したようにシート材４の一端を固定してスカート状
に取り付けておく。1> Attachment of underwater structure to the bottom The bottom of the side wall or bottom of the underwater structure 2, such as a submerged box, is
As described above, one end of the sheet material 4 is fixed and attached in the form of a skirt.
シート材４はあらかじめ犠装ヤードで取り付けてお（。Sheet material 4 is installed in advance at the sacrificial yard (.
次に水中構造物２を静かに吊り降ろす。Next, the underwater structure 2 is gently lowered.
シート材４を取り付けた水中構造物２を吊り降ろす際、
シート材４が着底したとき邪魔にならないようにシート
材４の下端にロープを接続しておく等して捲り上げてお
（。When suspending the underwater structure 2 with the sheet material 4 attached,
When the sheet material 4 reaches the bottom, connect a rope to the bottom end of the sheet material 4 so that it does not get in the way and roll it up (.
水中構造物２を仮支承ブロック７に着底させ、水中構造
物２に配備したジヤツキ８の操作によって所定の据え付
は高さを調整する。The underwater structure 2 is placed on the temporary support block 7, and the height of the underwater structure 2 is adjusted to a predetermined height by operating a jack 8 provided on the underwater structure 2.
その結果、水中構造物２と水底１との間に間隙３が形成
される。As a result, a gap 3 is formed between the underwater structure 2 and the underwater bottom 1.
く２〉シート材による遮蔽（第３図）
水中構造物２を着底したら、それまで捲り上げていたシ
ート材４を垂れ落とす。2> Shielding with sheet material (Figure 3) When the underwater structure 2 reaches the bottom, the sheet material 4 that had been rolled up until then is dropped.
シート材４の下端には重り６が取り付けであるから、速
やかに下端が着底して水中構造物２と水底１との間に形
成された間隙３を外部から遮蔽する。Since the weight 6 is attached to the lower end of the sheet material 4, the lower end quickly lands on the bottom and shields the gap 3 formed between the underwater structure 2 and the underwater bottom 1 from the outside.
く３〉注入材の注入（第１．３図）
次に水中構造物２の内部側からシート材４で遮蔽した間
隙３内にモルタル等の注入材５を注入する。3> Injection of injection material (Fig. 1.3) Next, injection material 5 such as mortar is injected into the gap 3 covered by the sheet material 4 from the inside of the underwater structure 2.
間隙３内に注入された注入材５は、水中構造物２と水底
ｌと間に形成された間隙３内に浸透してい（。The injection material 5 injected into the gap 3 permeates into the gap 3 formed between the underwater structure 2 and the water bottom l (.
間隙３内に注入材５が注入されると、間隙３内に存在す
る水は注入材５と置換されてシート材４を透過してシー
ト材４の外部に排水される。When the injection material 5 is injected into the gap 3, the water present in the gap 3 is replaced by the injection material 5, passes through the sheet material 4, and is drained to the outside of the sheet material 4.
注入された注入材５がシート材４に達すると、注入材５
は水底１に横たわるシート材４の上面に堆積してシート
材４の下端を水底１に押しつける。When the injected injection material 5 reaches the sheet material 4, the injection material 5
is deposited on the upper surface of the sheet material 4 lying on the water bottom 1 and presses the lower end of the sheet material 4 against the water bottom 1.
シート材４は注入材５の重量で下端を水底１に押さえつ
けられたことになり、またシート材４の上端は水中構造
物２に固定しであるから間隙３を包囲するような袋体が
形成されたことになる。The lower end of the sheet material 4 is pressed against the water bottom 1 by the weight of the injection material 5, and since the upper end of the sheet material 4 is fixed to the underwater structure 2, a bag body that surrounds the gap 3 is formed. It means that it was done.
注入材５の注入が続けられるとシート材４に張力が発生
するが、注入材５の注入量が増えるに従って、シート材
４の下端と水底１との間に発生する摩擦抵抗が大きくな
るのでシート材４の下端が注入材５の中から抜は出るこ
とはない。As injection of the injection material 5 continues, tension is generated in the sheet material 4, but as the injection amount of the injection material 5 increases, the frictional resistance generated between the lower end of the sheet material 4 and the water bottom 1 increases. The lower end of the material 4 will not come out of the injection material 5.
以上の結果、注入材５の漏出が規制された状態で間隙３
内の全域に注入材５が注入される。As a result of the above, the leakage of the injection material 5 is regulated in the gap 3.
The injection material 5 is injected into the entire area inside.
く本発明の効果〉
本発明は以上説明したようになるから次のような効果を
得ることができる。Effects of the Present Invention> Since the present invention is as described above, the following effects can be obtained.
（イ）水底と水中構造物との間に発生する間隙をシート
材で確実に遮蔽できるから、間隙内に注入する注入材を
シート材の外部に漏出させることを規制できる。(a) Since the gap generated between the water bottom and the underwater structure can be reliably covered by the sheet material, leakage of the injection material injected into the gap to the outside of the sheet material can be regulated.
その結果、注入材の注入量を最小に抑えることができ経
済的である。As a result, the amount of injection material can be minimized, which is economical.
（ロ）水中構造物の沈設後、早期に水中構造物をモルタ
ル基礎上へジヤツキダウンできる。(b) After submerging the underwater structure, the underwater structure can be jacked down onto the mortar foundation at an early stage.
（ハ）間隙の遮蔽手段としてシート材で遮蔽する方法を
採用したことにより、従来の方法に比べて遮蔽に要する
労力や時間を著しく軽減でき、しかも工期を大幅に短縮
できる。(c) By adopting a method of shielding the gap with a sheet material, the labor and time required for shielding can be significantly reduced compared to conventional methods, and the construction period can also be significantly shortened.
（ニ）注入材の注入状態はシート材に触れることにより
容易に確認することができる。(d) The injection state of the injection material can be easily confirmed by touching the sheet material.
（ホ）モルタルコアを採取して、品質の確認が容易に行
える。(e) The quality can be easily checked by collecting mortar cores.
（へ）透水性を有するシート材を使用したことにより、
間隙内に存在する水をスムーズに排水でき、しかも注入
材の透過を規制するから、注入材の注入作業を効率良く
行える。(f) By using a sheet material with water permeability,
The water present in the gap can be drained smoothly, and the permeation of the injection material is restricted, so the injection work of the injection material can be carried out efficiently.
第１図：本発明に係る一実施例の説明図第２図：水中構
造物を着底させてシート材で間隙を遮蔽したときの説明
図Figure 1: An explanatory diagram of one embodiment of the present invention Figure 2: An explanatory diagram when an underwater structure is placed on the bottom and the gap is covered with a sheet material
Claims (1)
ルタル等の注入材を注入して、水中構造物と水底間の間
隙を処理するに際して、 水中構造物の下部にシート材をスカート状に取り付け、 前記水中構造物を着底させ、 水底と水中構造物との間に発生した間隙と外部とをシー
ト材で遮蔽し、 シート材で遮蔽した間隙内に、 シート材で注入材の漏出を規制して注入材を注入するこ
とを特徴とする、 水中構造物の基礎施工方法[Claims] When treating the gap between the submerged underwater structure and the water bottom by injecting an injection material such as mortar into the gap that occurs between the submerged underwater structure and the water bottom, the lower part of the underwater structure A sheet material is attached in the form of a skirt to the underwater structure, the underwater structure is placed on the bottom, and the gap generated between the underwater structure and the underwater structure is shielded from the outside with the sheet material. A method for constructing a foundation for an underwater structure, characterized by injecting the injection material while restricting leakage of the injection material using a material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61170791A JPH0613773B2 (en) | 1986-07-22 | 1986-07-22 | Basic construction method for underwater structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61170791A JPH0613773B2 (en) | 1986-07-22 | 1986-07-22 | Basic construction method for underwater structures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6327625A true JPS6327625A (en) | 1988-02-05 |
| JPH0613773B2 JPH0613773B2 (en) | 1994-02-23 |
Family
ID=15911424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61170791A Expired - Fee Related JPH0613773B2 (en) | 1986-07-22 | 1986-07-22 | Basic construction method for underwater structures |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0613773B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008075245A (en) * | 2006-09-19 | 2008-04-03 | Japan Bridge Engineering Center | Construction method for pedestal concrete |
| DE102007019276A1 (en) | 2007-04-16 | 2008-11-13 | Heinze, Peter, Dr.-Ing. | Method for construction of tunnels by prefabricated concrete tunnel sections employed in crossing of rivers, involves fixing guide rails with axle supported rolling elements e.g. roller or ball in tunnel shoring for loading tunnel section |
| EP2597206A1 (en) * | 2011-11-22 | 2013-05-29 | Ceteal | Foundation and method of manufacture |
| WO2014202948A1 (en) * | 2013-06-20 | 2014-12-24 | Linell Renewables Limited | Gravity base for a marine structure |
| JP2017503101A (en) * | 2014-01-15 | 2017-01-26 | シービージェイ（香港） オーシャン エンジニアリング リミテッドＣｂｊ（Ｈｏｎｇ Ｋｏｎｇ） Ｏｃｅａｎ Ｅｎｇｉｎｅｅｒｉｎｇ Ｌｉｍｉｔｅｄ | Water structure fixing roll and its construction method |
| WO2017045030A1 (en) * | 2015-09-18 | 2017-03-23 | Worleyparsons Services Pty Ltd | Method and apparatus for deploying tide driven power generators |
| KR20200041196A (en) * | 2018-10-11 | 2020-04-21 | 정민시 | Foundation Module for using Kinetic Energy of Fluid and the Construction Methods thereof |
-
1986
- 1986-07-22 JP JP61170791A patent/JPH0613773B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008075245A (en) * | 2006-09-19 | 2008-04-03 | Japan Bridge Engineering Center | Construction method for pedestal concrete |
| JP4699320B2 (en) * | 2006-09-19 | 2011-06-08 | 財団法人 海洋架橋・橋梁調査会 | Construction method of pedestal concrete |
| DE102007019276A1 (en) | 2007-04-16 | 2008-11-13 | Heinze, Peter, Dr.-Ing. | Method for construction of tunnels by prefabricated concrete tunnel sections employed in crossing of rivers, involves fixing guide rails with axle supported rolling elements e.g. roller or ball in tunnel shoring for loading tunnel section |
| EP2597206A1 (en) * | 2011-11-22 | 2013-05-29 | Ceteal | Foundation and method of manufacture |
| WO2013076133A3 (en) * | 2011-11-22 | 2013-11-21 | Ceteal | Foundation and method of manufacture |
| WO2014202948A1 (en) * | 2013-06-20 | 2014-12-24 | Linell Renewables Limited | Gravity base for a marine structure |
| JP2017503101A (en) * | 2014-01-15 | 2017-01-26 | シービージェイ（香港） オーシャン エンジニアリング リミテッドＣｂｊ（Ｈｏｎｇ Ｋｏｎｇ） Ｏｃｅａｎ Ｅｎｇｉｎｅｅｒｉｎｇ Ｌｉｍｉｔｅｄ | Water structure fixing roll and its construction method |
| WO2017045030A1 (en) * | 2015-09-18 | 2017-03-23 | Worleyparsons Services Pty Ltd | Method and apparatus for deploying tide driven power generators |
| KR20200041196A (en) * | 2018-10-11 | 2020-04-21 | 정민시 | Foundation Module for using Kinetic Energy of Fluid and the Construction Methods thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0613773B2 (en) | 1994-02-23 |
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Legal Events
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