JP5941310B2 - How to prevent overturning and sliding of underwater structures - Google Patents

How to prevent overturning and sliding of underwater structures Download PDF

Info

Publication number
JP5941310B2
JP5941310B2 JP2012072557A JP2012072557A JP5941310B2 JP 5941310 B2 JP5941310 B2 JP 5941310B2 JP 2012072557 A JP2012072557 A JP 2012072557A JP 2012072557 A JP2012072557 A JP 2012072557A JP 5941310 B2 JP5941310 B2 JP 5941310B2
Authority
JP
Japan
Prior art keywords
sinker
sliding
body structure
dam body
overturning
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.)
Active
Application number
JP2012072557A
Other languages
Japanese (ja)
Other versions
JP2013204265A (en
Inventor
正 福本
正 福本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nishimatsu Construction Co Ltd
Original Assignee
Nishimatsu Construction Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nishimatsu Construction Co Ltd filed Critical Nishimatsu Construction Co Ltd
Priority to JP2012072557A priority Critical patent/JP5941310B2/en
Publication of JP2013204265A publication Critical patent/JP2013204265A/en
Application granted granted Critical
Publication of JP5941310B2 publication Critical patent/JP5941310B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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

  • Revetment (AREA)

Description

護岸や防波堤などの海中構造物が、波浪や津波によって転倒したり、滑動するのを防止する方法に関する。   The present invention relates to a method for preventing underwater structures such as seawalls and breakwaters from falling or sliding due to waves and tsunamis.

従来、海中に設置されたケ−ソン護岸等の構造物には、潮流や波浪、更には津波による転倒・滑動を抑止して安定性を確保するため、以下の方法が採用されている。(図３参照)
（１）構造物の重量を増大させて基礎マウンドとの間の摩擦力を増大させて滑動力に抵抗する。
（２）護岸構造物と基礎マウンドとの間に摩擦を増大させるマット５１を設置する。
（３）構造物底面より基礎マウンド内に脚を突出させて滑動力に抵抗させる。
（４）構造物の背面側に滑動を阻止するブロック等を積み重ねるなどして抵抗を大きくするなどしている。
（５）基礎マウンド上の構造物の前後にブロック５２や巨石を敷き並べて転倒や滑動に抵抗させる。 Conventionally, the following methods have been adopted for structures such as Kayson revetment installed in the sea in order to ensure stability by preventing tidal currents, waves, and even tumbling and sliding caused by tsunami. (See Figure 3)
(1) Increase the weight of the structure and increase the frictional force with the foundation mound to resist the sliding force.
(2) A mat 51 for increasing friction is installed between the revetment structure and the foundation mound.
(3) A leg is projected into the foundation mound from the bottom of the structure to resist sliding force.
(4) The resistance is increased by, for example, stacking blocks that prevent sliding on the back side of the structure.
(5) Blocks 52 and megaliths are placed before and after the structure on the foundation mound to resist falling and sliding.

特開２０１１−８４８６８号公報JP 2011-84868 A 特開２００４−１１６１３０号公報JP 2004-116130 A

しかしながら、滑り止めのマットが経年劣化した場合、堤体構造物の重量が大きなものであるため、マットを更新することは事実上不可能である。堤体構造物が巨大津波等によって転倒したり、滑動すると、その巨大な重量のため元の位置に戻すといった復旧は困難であり、その後の堤体構造物の波浪制御機能が極端に低下し、堤体で守られた地域を危険状態に曝すこととなる。
本発明は、巨大津波等による堤防等の堤体構造物の転倒・滑動を抑止すると共に、復旧を容易にするものである。 However, when the anti-slip mat deteriorates over time, it is virtually impossible to renew the mat because the weight of the dam body structure is large. If the levee structure falls or slides due to a huge tsunami, it is difficult to restore it to its original position due to its huge weight, and the wave control function of the subsequent dam structure is extremely reduced. The area protected by the embankment will be exposed to danger.
The present invention suppresses overturning / sliding of a bank structure such as a bank by a massive tsunami or the like, and facilitates restoration.

防波堤などの堤体構造物の外海側、または、外海側と内海側の両側にシンカーを設置し、堤体構造物をシンカーに連結固定することによって転倒・滑動を抑止するものであり、堤体構造物の天端に定着装置を被せて固定するようにしたものである。
定着装置は、堤体構造物天端に鋼製治具を被せて堤体構造物に固定するものであり、治具にはシンカーに連結固定するための固定装置が設けてある。 Sinkers are installed on the open sea side of the dam body structure such as a breakwater, or both sides of the open sea side and the inland sea side, and the dam body structure is connected and fixed to the sinker to prevent overturning and sliding. A fixing device is placed on the top end of the structure and fixed.
The fixing device covers the top of the bank structure with a steel jig and fixes it to the bank structure, and the jig is provided with a fixing device for connecting and fixing to the sinker.

ケーソン等の堤体構造物に波浪や津波が作用して堤体構造物が転倒もしくは滑動させられようとした場合でも、堤体構造物の天端に固定された鋼製治具を介して堤体構造物はシンカーに連結固定されており、転倒・滑動が抑止される。
また、大きな力が作用しても、堤体構造物がシンカーに連結固定されているので滑動量が抑えられる。さらに、シンカーとの連結部材が破断しても再連結が容易であり、シンカーに反力を取って堤体構造物の位置修正が可能であるので経済的に復旧させることができる。
鋼製治具を堤体構造物の天端に被せて固定するものであり、新設・既設を問わず設置可能であるため、既設の防波堤にも鋼製治具を追加構造物として付加することが可能であり経済的に堤防を強化することが可能である。
また、設置する地域の海象条件に応じてシンカーの大きさ、位置及び連結方法を変えることによって、効率的に堤体構造物の転倒・活動防止ができる。 Even when a wave or tsunami acts on a dam body structure such as a caisson and the dam body structure is about to fall or slide, the dam body structure is fixed via a steel jig fixed to the top of the dam body structure. The body structure is connected and fixed to the sinker to prevent the body from falling or sliding.
Even if a large force is applied, the amount of sliding can be suppressed because the bank structure is connected and fixed to the sinker. Furthermore, even if the connecting member with the sinker is broken, reconnection is easy, and the position of the dam body structure can be corrected by applying a reaction force to the sinker, which can be economically restored.
A steel jig is placed on the top of the dam body structure and fixed, and can be installed regardless of whether it is newly installed or existing. Therefore, a steel jig should be added to the existing breakwater as an additional structure. It is possible to strengthen the embankment economically.
In addition, by changing the size, position and connection method of the sinker according to the sea conditions of the area where it is installed, it is possible to efficiently prevent the dam body structure from overturning and preventing activity.

本発明の実施例の側面図。The side view of the Example of this invention. 本発明の実施例の平面図。The top view of the Example of this invention. 従来の護岸の側面図。Side view of conventional revetment.

１ 堤体構造物（堤防、護岸）
２、２０ シンカー
３ 鋼製治具
４ 連結体
５ 基礎マウンド
６ 海底面
６１ 凹所 1 Embankment structure (embankment, revetment)
2, 20 Sinker 3 Steel jig 4 Linked body 5 Foundation mound 6 Sea bottom 61 Recess

図１においてケ−ソンからなる堤体構造物（堤防）１が基礎マウンド５の上に設置されている。この堤防１の天端に、天端形状に合致した鋼製治具３を被せ、堤防１を構成するケーソンにアンカー等の固定具によって強固に固定して両者を一体化してある。鋼製治具３の天端または側面には、シンカー２と連結するためのチェーン等の連結体４を固定する固定具３１が設けてある。
堤防１の外海側のみ、または外海側と内海側の両側にコンクリート製の直方体等のシンカー２が海底面６を掘削して形成した凹所６１にほぼ全体を埋め込んである。シンカー２の頂部または稜線部には、シンカー２と鋼製治具３を連結するチェーン等の連結体４を固定するための連結具２１が設けてある。 In FIG. 1, a dam body structure (bank) 1 made of a caisson is installed on a foundation mound 5. The top of the levee 1 is covered with a steel jig 3 that matches the shape of the top, and the caisson constituting the levee 1 is firmly fixed by a fixture such as an anchor to integrate the two. A fixing tool 31 for fixing the connecting body 4 such as a chain for connecting to the sinker 2 is provided on the top end or the side surface of the steel jig 3.
A sinker 2 such as a rectangular parallelepiped made of concrete is embedded almost entirely in a recess 61 formed by excavating the bottom surface 6 only on the outer sea side of the dike 1 or on both sides of the outer sea side and the inner sea side. A connecting tool 21 for fixing a connecting body 4 such as a chain for connecting the sinker 2 and the steel jig 3 is provided on the top portion or the ridge line portion of the sinker 2.

外海側のシンカー２の重量は、堤体構造物１に作用する波や津波、及び潮力などに基づく外力を想定し、堤体構造物１に連結するシンカー２の数などによって決定するものであるが、数十トン〜数百トンの重量とする。
内海側のシンカー２０の重量は、津波等の引き波による外力に基づいて決めるのである。従って、引き波が小さく堤体構造物１の重量で耐えられる場合は、内海側のシンカー２０を設ける必要がない。 The weight of the sinker 2 on the open sea side is determined by the number of sinkers 2 connected to the dam body structure 1, assuming external forces based on waves, tsunamis, and tidal forces acting on the dam body structure 1. There is a weight of several tens to hundreds of tons.
The weight of the sinker 20 on the inland sea side is determined based on an external force caused by a pulling wave such as a tsunami. Therefore, when the pulling wave is small and can be withstood by the weight of the dam body structure 1, it is not necessary to provide the sinker 20 on the inland sea side.

シンカー２に対して更に第２シンカー２５を設置することによってシンカー２を第２シンカー２５によって定着し、堤体構造物を２段に定着することによって、堤体構造物の転倒・滑動防止効果を増大させることも可能である。   By installing a second sinker 25 on the sinker 2, the sinker 2 is fixed by the second sinker 25, and the bank body structure is fixed in two stages, thereby preventing the bank body structure from falling and sliding. It can also be increased.

Claims (2)

海中に設置される堤体構造物の天端に、天端形状に合致した鋼製治具を被せて固定し、堤体構造物の少なくとも外洋側に海底面を掘削して形成した凹所にほぼ全体を埋め込んであるシンカーを設け、鋼製治具に設けた固定具とシンカーを連結具で連結することによって堤体構造物の転倒・滑動を防止する方法。 At the top of the embankment structure installed in the sea, put a steel jig that matches the shape of the top of the embankment and fix it. A method to prevent the bank structure from overturning and sliding by providing a sinker that is almost entirely embedded, and connecting the fixture provided on the steel jig and the sinker with the connector. 請求項１において、シンカーを第２シンカーと連結固定する堤体構造物の転倒・滑動を防止する方法。 The method according to claim 1, wherein the bank structure for connecting and fixing the sinker to the second sinker is prevented from overturning and sliding.
JP2012072557A 2012-03-27 2012-03-27 How to prevent overturning and sliding of underwater structures Active JP5941310B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012072557A JP5941310B2 (en) 2012-03-27 2012-03-27 How to prevent overturning and sliding of underwater structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012072557A JP5941310B2 (en) 2012-03-27 2012-03-27 How to prevent overturning and sliding of underwater structures

Publications (2)

Publication Number Publication Date
JP2013204265A JP2013204265A (en) 2013-10-07
JP5941310B2 true JP5941310B2 (en) 2016-06-29

Family

ID=49523662

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012072557A Active JP5941310B2 (en) 2012-03-27 2012-03-27 How to prevent overturning and sliding of underwater structures

Country Status (1)

Country Link
JP (1) JP5941310B2 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54102037A (en) * 1978-01-27 1979-08-11 Kenji Ishikura Wave breaking structure and building method thereof
JPS59138607A (en) * 1983-01-27 1984-08-09 Tsuneishi Zosen Kk Construction of breakwater
JPS6149008A (en) * 1984-08-17 1986-03-10 Ishikawajima Harima Heavy Ind Co Ltd Mooring of floating type structure
JPS61211409A (en) * 1985-03-18 1986-09-19 Zeniraito V:Kk Float wave dissipating device
JPH0544660Y2 (en) * 1987-08-06 1993-11-12

Also Published As

Publication number Publication date
JP2013204265A (en) 2013-10-07

Similar Documents

Publication Publication Date Title
JP5939635B2 (en) Construction method of tide embankment by embankment reinforced earth method using honeycomb structure and planar reinforcement
JP6077962B2 (en) Sliding breakwater
CN202040481U (en) Seabed petroleum pipeline anti-scouring protection structure
JP5941310B2 (en) How to prevent overturning and sliding of underwater structures
JP2014070477A (en) Earthquake proof and overflow proof bank body structure
JP6511671B2 (en) Construction method of coastal soil structure against huge tsunami by high-rigidity geosynthetic reinforced soil retaining wall with rigid integrated wall work
JP2009114689A (en) Construction method for revetment structure
JP6881916B2 (en) How to install the structure
CN206477308U (en) A kind of compatible ready-package river levee in dike road
JP5983436B2 (en) Gravity breakwater
JP5949643B2 (en) Reinforcement structure of caisson type hybrid bank and method for constructing the reinforcement structure
AU2012392206A1 (en) A versatile erosion control system
JP2012062750A (en) Coastal dyke
JP2009228268A (en) Leg type offshore breakwater
JP6251491B2 (en) Construction method for coastal structures
JP2015190109A (en) Scouring-resistant apron floor structure
JP6298637B2 (en) Tide structure and its construction method
JP6234973B2 (en) Construction method of earthquake-resistant seawall by embankment reinforced earth wall method
JP2013019133A (en) Breakwater
JP2018178562A5 (en) Seawall, seawall construction method and seawall panel
JP4730690B2 (en) Raising the existing breakwater
JP6769730B2 (en) Connection structure and connection method
RU2385382C1 (en) Device for preventing initial failures induced with floods
JP2013181327A (en) Rubble layer protective structure for gravity type caisson breakwater
KR100579469B1 (en) The establishment construction of shore block for river

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20150326

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20151203

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20151215

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20160205

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20160517

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20160520

R150 Certificate of patent or registration of utility model

Ref document number: 5941310

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250