JPH0213605A - Construction method for caisson and quay wall made utilizing it - Google Patents
Construction method for caisson and quay wall made utilizing itInfo
- Publication number
- JPH0213605A JPH0213605A JP16300088A JP16300088A JPH0213605A JP H0213605 A JPH0213605 A JP H0213605A JP 16300088 A JP16300088 A JP 16300088A JP 16300088 A JP16300088 A JP 16300088A JP H0213605 A JPH0213605 A JP H0213605A
- Authority
- JP
- Japan
- Prior art keywords
- caisson
- foundation
- mount
- pile
- foundation pile
- 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 abstract description 9
- 238000000034 method Methods 0.000 claims description 7
- 230000035515 penetration Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Revetment (AREA)
- Foundations (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）技術分野
本発明は、クレーンやレーダー等を設置する港湾等にお
けるケーソンを使用した岸壁の築造方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field The present invention relates to a method of constructing a quay using caissons in ports and harbors where cranes, radars, etc. are installed.
（ロ）背景技術
近時、コンテナ埠頭等の港湾構造物の築造は沖合いに展
開しつつあり、大水深で軟弱な地盤等の悪い条件下に築
造したマウント上へケーソンを据え付けるケースが多い
。そのため、軟弱地盤に、おいては、施工に伴なう環境
問題や地盤改良等の経済性の問題が大きな課題となって
いる。(B) Background Art Recently, the construction of port structures such as container wharves has been expanding offshore, and in many cases caissons are installed on mounts constructed under poor conditions such as deep water and soft ground. Therefore, in soft ground, environmental issues associated with construction and economic issues such as ground improvement have become major issues.
また、特に大水深の軟弱地盤上に重力式の大型構造物を
築造する場合には、マウントの沈下や基礎地盤の圧密に
よる不等沈下によって上部構造物の天端高さの不一致や
法線の出入り等の悪影響を及ぼすこともある。In addition, especially when constructing a large gravity-type structure on soft ground in deep water, uneven settlement due to mount subsidence and foundation ground consolidation may cause discrepancies in the top height of the superstructure and deviation of the normal line. It may also have an adverse effect on entry and exit.
しかも、これらの問題点を解消できる重力式構造物を築
造しようとすると、大規模な地盤改良を伴なうなど多大
のコストと長期に渡る工期が必要となっていた。Moreover, attempting to construct a gravity-type structure that can solve these problems would require large-scale ground improvement, which would require a large amount of cost and a long construction period.
（ハ）発明の開示
本発明は、ケーソンを使用して軟弱地盤あるいは大水深
場所において重力式の大型構造物を築造する場合に、地
盤性下等の変位を極力抑える必要がある上部構造物、例
えばクレーンやレーダーなどを設置する際、従来方式で
は第５図に示すように大規模なＪ１１！！盤改良を施し
た基礎地盤の上に大型のマウントを築造した後、ケーソ
ンを設置する必要があったが、本発明によればクレーン
基礎やレーダー基礎等の変位量を許容範囲内におさめる
ことができるように後記するケーソン貫通孔に挿通した
基礎杭により支持させてなるので、大規模なＪ１！盤改
良も必要とせず、マウントも小さくて済み、全体的にス
リムな構築物を構築することを可能としたものである。(C) Disclosure of the Invention The present invention is directed to superstructures that require as much as possible to suppress displacement of the ground when building large gravity-type structures on soft ground or in deep water locations using caissons; For example, when installing cranes, radars, etc., the conventional method uses large-scale J11! ! It was necessary to install a caisson after constructing a large mount on the foundation ground that has been improved, but with the present invention, the amount of displacement of the crane foundation, radar foundation, etc. can be kept within the permissible range. The large-scale J1! No board improvements were required, the mount was small, and it was possible to construct an overall slim structure.
本発明によるケーソン上の上部構造物はケーソンと１士
その支持機構を異にするので、小型のマウントに載置し
たケーソンと構造的に輻輳するような位置にクレーンや
レーダー等の大型重量構造物の基礎を築造しても、上記
の如くその支持機構が異なるので１例えケーソン変位が
あっても、上部構造物への影響はなくなるのである。Since the superstructure on the caisson according to the present invention has a different support mechanism from the caisson, large heavy structures such as cranes and radars can be placed in a position where it is structurally congested with the caisson mounted on a small mount. Even if a foundation is constructed, the supporting mechanism is different as described above, so even if one caisson is displaced, it will not affect the superstructure.
従って、本発明によれば、地盤改良やマウント築造の工
期が長期に渡ることもなく、技術的にも経済的にも優れ
た方法を提供することができるのである。Therefore, according to the present invention, it is possible to provide a technically and economically superior method without requiring a long period of time for soil improvement or mount construction.
以下、本発明法の一実施例として、クレーン基礎を築造
する場合を図面を参照して説明する。Hereinafter, as an embodiment of the method of the present invention, a case where a crane foundation is constructed will be described with reference to the drawings.
（ニ）実施例
まず、第２〜３図のようにケーソン１の製作時にはあら
かじめその底版３の所定個所に後記する基礎杭７が挿通
できる複数の貫通孔４とこれに連通ずるケーソン１上面
に至る長さのガイド管２を設けておく。(d) Example First, as shown in Figs. 2 and 3, when manufacturing the caisson 1, a plurality of through holes 4 into which foundation piles 7 (to be described later) can be inserted are formed in advance at predetermined locations on the bottom plate 3, and the upper surface of the caisson 1 communicates with the through holes 4. A guide tube 2 is provided with a length that reaches the length of the guide tube.
そこで、クレーン基礎を構築しようとする位置の海底の
基礎基盤５に基礎杭７を打込む、この基礎杭７は上記ケ
ーソンの貫通孔４（図では４個）に相応して適宜間隔を
おいて立設する。Therefore, foundation piles 7 are driven into the foundation foundation 5 on the seabed at the location where the crane foundation is to be constructed, and the foundation piles 7 are placed at appropriate intervals corresponding to the through holes 4 (four in the figure) of the caisson. erect.
該基礎杭７を立設した後、盛土や捨石等からなる基礎捨
石マウント６を所定の大きさと高さに造成する。この場
合、各基礎杭７の頭部はマウント６の上面より上方に突
出する。After the foundation piles 7 are erected, a foundation rubble mount 6 made of embankment, rubble, etc. is constructed to a predetermined size and height. In this case, the head of each foundation pile 7 projects upward from the upper surface of the mount 6.
次に、マウント６の上面を均した後、作業船１４により
ケーソン１を該マウント６の所定位置まで曳航して来て
、該ケーソン１に設けられた上記ガイド管２内に各基礎
杭７が嵌挿されるようにケーソン１を沈降させて行くの
である（第４図（イ）〜（ロ））。Next, after leveling the upper surface of the mount 6, the caisson 1 is towed by the work boat 14 to a predetermined position on the mount 6, and each foundation pile 7 is placed inside the guide pipe 2 provided on the caisson 1. The caisson 1 is lowered so that it is inserted (Fig. 4 (a) to (b)).
これにより、ケーソン１がマウント６上に沈設されたと
きには、基礎杭７の頭部はケーソンｌ内に突出すること
になる。As a result, when the caisson 1 is sunk onto the mount 6, the head of the foundation pile 7 protrudes into the caisson l.
そこで、ケーソン１内に突出した基礎杭７頭端に該基礎
杭７と同径で上部がケーソンｌ上に突出する長さの支持
杭１０を継ぎ足し、ケーソン１上の構造物となるクレー
ン基礎１１に連設できるようにする。Therefore, a support pile 10 having the same diameter as the foundation pile 7 and a length such that the upper part protrudes above the caisson 1 is added to the end of the 7 foundation piles protruding into the caisson 1, and a crane foundation 11 that becomes a structure on the caisson 1 is added. so that it can be installed consecutively.
その後、ケーソン１の内部には砂や砕石等の中詰材を充
填してケーソン１の上面にクレーン架台１３を設置する
ためのクレーン基礎ｌｌを造成して、該クレーン基礎１
１を前記支持杭１０頭端に結合し、該支持杭１０を該ク
レーン基礎１１の基礎杭として使用するのである。Thereafter, the inside of the caisson 1 is filled with filling material such as sand or crushed stone to create a crane foundation ll for installing the crane mount 13 on the top surface of the caisson 1.
1 is connected to the head end of the support pile 10, and the support pile 10 is used as a foundation pile of the crane foundation 11.
一方、ケーソンｌの背面には割石９を裏込め。On the other hand, the back of caisson L is backfilled with split stone 9.
更にその背後に埋立８を施工する。１２はケーソン１後
方に打込んだ他のクレーン基礎用の基礎杭である。Furthermore, a landfill 8 will be constructed behind it. 12 is a foundation pile for another crane foundation driven into the rear of caisson 1.
なお１以上の実施例は基礎杭打設後にケーソンを沈降さ
せる場合を述べたが、まずケーソンを据え付けた後に、
ケーソン１の前記ガイド管２を利用して陸上などから基
礎杭を打込む方法を採ることもできる。In addition, in one or more embodiments, the case where the caisson is settled after foundation pile driving has been described, but after the caisson is first installed,
It is also possible to use the guide pipe 2 of the caisson 1 to drive foundation piles from land.
（ホ）発明の効果
本発明は上記のように構成され、ケーソンｌ上のクレー
ン等の上部構造物の荷重は基礎杭７（及び支持杭１０）
にかかり、マウント６にはケーソン１．の荷重のみがか
かるので、マウントに対する荷重がそれだけ少なくて済
み、たとえケーソン１が多少法下等により変位してもほ
とんど影響を受けない効果がある。(E) Effects of the invention The present invention is constructed as described above, and the load of the upper structure such as a crane on the caisson l is transferred to the foundation pile 7 (and support pile 10).
caisson 1 on mount 6. Since only the load is applied to the mount, the load on the mount can be reduced accordingly, and even if the caisson 1 is slightly displaced due to the slope or the like, there is an effect that the caisson 1 is hardly affected.
また１本発明によれば、マウントを大型化する必要がな
いので、地盤改良費も節減でき、工期も短縮される等、
経済的であり、種々の利点を有する。In addition, according to the present invention, there is no need to increase the size of the mount, so ground improvement costs can be reduced, construction time can be shortened, etc.
It is economical and has various advantages.
第１図は本発明により築造されたクレーン基礎を有する
港湾構造物の説明図、第２図は本発明に使用するケーソ
ンの平面図、第３図は該ケーソンの縦断面図、第４図（
イ）〜（ロ）は本発明法による施工の一過程を示す説明
図、第５図は従来法により築造されたクレーン基礎を有
する港湾構造物の断面図である。
符号説明
ｌ−ケーソン ２−ガイド管 ３−底版４−貫通孔 ５
−海底基礎基盤 ６−マウント７−基礎杭８−埋立土砂
９−裏込割石１〇−支持杭 １１−クレーン基礎
１２−クレーン基礎杭 １３−クレーン架台１４−作業
船 １５−改良地盤
特 許 出 願 人 国土総合建設株式会社第４図
第５図Fig. 1 is an explanatory diagram of a port structure with a crane foundation built according to the present invention, Fig. 2 is a plan view of a caisson used in the present invention, Fig. 3 is a longitudinal cross-sectional view of the caisson, and Fig. 4 (
(a) to (b) are explanatory diagrams showing one process of construction by the method of the present invention, and FIG. 5 is a sectional view of a port structure having a crane foundation constructed by the conventional method. Symbol explanation 1-Caisson 2-Guide pipe 3-Bottom plate 4-Through hole 5
- Seabed foundation 6 - Mount 7 - Foundation pile 8 - Reclaimed earth and sand 9 - Backfilling split stone 10 - Support pile 11 - Crane foundation 12 - Crane foundation pile 13 - Crane mount 14 - Work boat 15 - Improved ground patent application People Kokudo Sogo Construction Co., Ltd. Figure 4 Figure 5
Claims (3)
けられると共に該貫通孔に連通するガイド管が上面に至
るまで設けられてなることを特徴とするケーソン。(1) A caisson characterized in that a through hole through which a foundation pile can be inserted is provided at a predetermined location of the bottom slab, and a guide tube communicating with the through hole is provided all the way to the top surface.
本打込んだ後マウントを築造し、次に前記第１項記載の
ケーソンをマウント上に突出した上記基礎杭が上記ケー
ソン貫通孔を介してガイド管内に嵌挿されるようにケー
ソンを沈降させてマウント上に設置し、次に上記ガイド
管内の基礎杭頭端に上端がケーソン上側に突出する長さ
の支持杭を継杭し、該支持杭でケーソン上に設置される
クレーンやレーダー等の上部構造物の荷重を支持するよ
うにしたことを特徴とするケーソンを使用した岸壁の築
造方法。(2) After driving a plurality of foundation piles into the supporting ground at a predetermined position on the seabed ground, a mount is constructed, and then the foundation pile with the caisson described in paragraph 1 above is projected onto the mount, and the caisson through hole is inserted into the caisson through hole. The caisson is lowered and installed on the mount so that it is inserted into the guide pipe through the guide pipe, and then a supporting pile with a length such that the upper end protrudes above the caisson is connected to the foundation pile cap end in the guide pipe. A method of constructing a quay using a caisson, characterized in that the load of superstructures such as cranes and radars installed on the caisson is supported by support piles.
け、該ケーソンのガイド管内に下端が海底の支持地盤ま
で達する杭を打込み、ケーソン上に設置されるクレーン
やレーダー等の上部構造物の荷重を支持するようにした
ことを特徴とするケーソンを使用した岸壁の築造方法。(3) Install the caisson described in paragraph 1 above on the mount, drive a pile whose lower end reaches the support ground on the seabed into the guide pipe of the caisson, and load the superstructure such as a crane or radar installed on the caisson. A method of constructing a quay using a caisson, characterized in that the quay is supported by a caisson.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63163000A JP2630994B2 (en) | 1988-06-30 | 1988-06-30 | Construction method of quay using caisson |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63163000A JP2630994B2 (en) | 1988-06-30 | 1988-06-30 | Construction method of quay using caisson |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0213605A true JPH0213605A (en) | 1990-01-18 |
| JP2630994B2 JP2630994B2 (en) | 1997-07-16 |
Family
ID=15765294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63163000A Expired - Fee Related JP2630994B2 (en) | 1988-06-30 | 1988-06-30 | Construction method of quay using caisson |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2630994B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555078A (en) * | 2018-12-25 | 2019-04-02 | 广州粤科工程技术有限公司 | A kind of Gravity Type Casisson Berth and its construction method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57146812A (en) * | 1981-03-09 | 1982-09-10 | Mitsubishi Heavy Ind Ltd | Gravity type dam |
-
1988
- 1988-06-30 JP JP63163000A patent/JP2630994B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57146812A (en) * | 1981-03-09 | 1982-09-10 | Mitsubishi Heavy Ind Ltd | Gravity type dam |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555078A (en) * | 2018-12-25 | 2019-04-02 | 广州粤科工程技术有限公司 | A kind of Gravity Type Casisson Berth and its construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2630994B2 (en) | 1997-07-16 |
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