JPS6332923B2 - - Google Patents
Info
- Publication number
- JPS6332923B2 JPS6332923B2 JP62195307A JP19530787A JPS6332923B2 JP S6332923 B2 JPS6332923 B2 JP S6332923B2 JP 62195307 A JP62195307 A JP 62195307A JP 19530787 A JP19530787 A JP 19530787A JP S6332923 B2 JPS6332923 B2 JP S6332923B2
- Authority
- JP
- Japan
- Prior art keywords
- wave
- dissipating
- levee body
- main
- lattice
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 73
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000011358 absorbing material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 10
- 239000004575 stone Substances 0.000 description 5
- 238000009991 scouring Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は防波堤、護岸等として使用する防波構
造物とその構築法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a breakwater structure used as a breakwater, seawall, etc., and a construction method thereof.
水底に打設した多数の杭で形成した角筒状の囲
いの中に石材またはコンクリートブロツク等の消
波材を充填してなる防波構造物は、その築造中の
波浪の影響が比較的少なく、多少の波浪があつて
も施工が可能であるという特長がある。
Wavebreak structures, which consist of a rectangular cylindrical enclosure formed by numerous piles driven into the water bottom and filled with wave-absorbing materials such as stones or concrete blocks, are relatively unaffected by waves during construction. It has the advantage of being able to be constructed even in the presence of some waves.
その反面、上記構造物は、杭周辺の地層が軟弱
なとき、水平方向に対する水底地層の抵抗力が弱
く、また、特にそれが砂質であるときには洗掘さ
れ易いために杭の根入り長さが不足し、水底地層
中の抵抗力が急激に減じ、当該構造物が曲がつた
り、倒壊したりするおそれがあつた。これを避け
るために、杭の根入りを長くすると、今度はその
杭の曲げ応力が増大するので杭の断面も大きくな
り、資材費を含む工事費が逓増する。 On the other hand, when the stratum around the pile is soft, the resistance of the underwater stratum in the horizontal direction is weak, and especially when it is sandy, the structure is easily scoured, so the length of the pile's penetration is limited. There was a shortage of water, and the resistance force in the underwater strata decreased rapidly, leading to the risk that the structure would bend or collapse. In order to avoid this, if the pile is made to penetrate for a long time, the bending stress of the pile will increase, so the cross section of the pile will also become larger, and the construction cost including material cost will increase.
そこで、本出願人は、上記角筒状の囲いの外周
に、石材またはコンクリートブロツク等の消波材
を乱積みし、これによつて、洗掘を防止するよう
にした防波構造物を開発した（実願昭57−88350
号（実開昭58−189227号））。 Therefore, the applicant has developed a wave-break structure in which wave-dampening materials such as stones or concrete blocks are stacked randomly around the outer periphery of the rectangular cylindrical enclosure, thereby preventing scouring. (Jitsugan 57-88350
No. 189227).
しかし、波浪が、異常に大きくなつた場合等に
おいて、上記乱積み消波材が、洗掘によりその外
側に位置するものから個々に脱落して波浪により
遠方に移動せしめられ、終いにはその洗掘が角筒
状の囲いを構成している杭の基部全体に及び、そ
の囲いを、中に消波材を充填させたまま倒壊させ
る事態に至る危険があつた。 However, in cases such as when waves become abnormally large, the wave-dissipating materials that are piled up loosely fall off individually from those located on the outside due to scouring, are moved far by the waves, and eventually The scouring covered the entire base of the piles that made up the rectangular cylindrical enclosure, and there was a risk that the enclosure would collapse with the wave-dissipating material still inside.
本発明は、このような問題を解決することを目
的に提案された防波構造物とその構築法に関す
る。 The present invention relates to a wave prevention structure and a construction method thereof proposed for the purpose of solving such problems.
本発明防波構造物は、植立する多数の杭が形成
する角筒型格子状枠体内に多数の消波材が充填し
ている主堤体と、この主堤体の外周水底面上の消
波材乱積み内側堤体と、さらにその外周水底面上
に敷設された格子状消波敷設材上の消波材乱積み
外側堤体とからなり、しかもこれら主堤体、内、
外側堤体が一体化しているものである。
The wavebreak structure of the present invention consists of a main levee body in which a large number of wave-dissipating materials are filled in a rectangular cylindrical lattice frame formed by a large number of piles to be erected; It consists of an inner levee body with random piles of wave-dissipating materials, and an outer levee body with random piles of wave-dissipating materials on the lattice-shaped wave-dissipating laying material laid on the bottom surface of the outer periphery.
The outer embankment body is integrated.
本発明防波構造物の構築法は、水底に多数の杭
を所定の間隔で打設し、その各頭部を方形枠体に
より連結して角筒型格子状枠体を設立するととも
に、その中に所要の消波材を充填して主堤体を築
造したのち、その主堤体から所要の間隔離れた水
底面上に複数の鋼材を縦横に配置して格子状目を
列設してなる格子状消波敷設材を敷設し、その上
に、上記格子状目に係合する所要の消波材を乱積
みして消波材乱積み外側堤体を築造し、そのあ
と、この外側堤体と上記主堤体との間の水底面上
に直接所要の消波材を乱積みして上記主堤体及び
外側堤体と一体な消波材乱積み内側堤体を築造
し、これによつて所期の防波構造物を得るもので
ある。 The method for constructing the wave-break structure of the present invention is to drive a large number of piles into the water bottom at predetermined intervals, connect the heads of each pile with a rectangular frame to establish a rectangular cylindrical lattice-like frame, and After building the main levee body by filling it with the required wave-dissipating material, multiple steel members are placed vertically and horizontally on the water bottom separated from the main levee body by a grid pattern. A lattice-shaped wave-dissipating laying material is laid, and on top of that, the necessary wave-dissipating materials that engage with the lattice pattern are stacked randomly to construct an outer embankment body with a random pile of wave-dissipating materials. The necessary wave-dissipating materials are stacked directly on the water bottom surface between the levee body and the main levee body to construct an inner levee body with a large amount of wave-dissipating materials, which is integrated with the main levee body and the outer levee body. In this way, the desired wave-break structure can be obtained.
本発明防波構造物は、要するに、角筒型格子状
枠体に消波材を充填してなる主堤体の外周を消波
材乱積み内側堤体が囲繞するとともに、さらにそ
の外周を消波材乱積み外側堤体が囲繞し、かつ、
この外側堤体は、格子状消波敷設材に消波材を乱
積みしてなる。
In short, the wavebreak structure of the present invention has a main levee body formed by filling a rectangular cylindrical lattice-like frame with wave-absorbing material, and an inner levee body surrounding the outer periphery of the main levee body, which is made up of wave-absorbing material. Surrounded by an outer embankment body made of randomly stacked corrugated materials, and
This outer embankment body is made by randomly stacking wave-dissipating materials on a lattice-shaped wave-dissipating laying material.
すなわち、外側堤体の消波材は、格子状消波敷
設材に積載されて、格子状目に係合あるいは係止
しているので、直接波浪により脱落、散逸するよ
うなことがなく、また、格子状消波敷設材及びこ
れに係合している消波材の設置部分が洗掘された
ときにも、当該消波材は上記係合によつて脱落、
散逸するのを防止される。 In other words, the wave-dissipating material on the outer embankment is loaded onto the lattice-shaped wave-dissipating material and is engaged or locked in the lattice-like mesh, so it does not fall off or dissipate due to direct waves. , Even when the installation part of the lattice-shaped wave-dissipating material and the wave-dissipating material that is engaged with it is scoured, the wave-dissipating material will fall off due to the above-mentioned engagement.
Prevented from dissipating.
したがつて、この外側堤体により囲繞されてい
る内側堤体の消波材が散逸するのも防止される。 Therefore, the wave-dissipating material of the inner embankment surrounded by the outer embankment is also prevented from dissipating.
しかも、内側堤体の消波材は、主堤体の外周水
底に徐々に食い込み、各杭を強固に囲繞する状態
となる。 Moreover, the wave-dissipating material of the inner embankment body gradually bites into the outer water bottom of the main embankment body, and becomes in a state where each pile is strongly surrounded.
このため、主堤体は、その杭の基部を洗掘され
ることなく、反対に水底地層の水平方向の抵抗力
が増大することとなり、本主堤体が波浪によつて
倒壊するというようなおそれがない。 For this reason, the main levee body is not scoured at the base of its piles, and on the contrary, the horizontal resistance of the underwater strata increases, preventing the main levee body from collapsing due to waves. There is no fear.
また、本発明構築法によれば、主堤体は、杭の
角筒型格子状枠体に消波材を充填するものである
から、構築期間中に大きな波浪を受けても、その
波浪は該主堤体を通過し、大きな抵抗とならな
い。また、格子状消波敷設材上に消波材を乱積み
して消波材乱積み外側堤体を築造し、その消波材
が格子状目に係合することにより波浪によつて脱
落、散逸しない状態にしたあとにおいて、上記主
堤体と外側堤体との間に水底に消波材を直接乱積
みすることにより消波材乱積み内側堤体を築造す
るので、構築後はもちろん構築期間中において
も、その内側堤体の消波材を波浪で散逸させてし
まう不経済がない。 Furthermore, according to the construction method of the present invention, the main embankment body is made by filling the rectangular cylindrical lattice frame of the pile with wave-dissipating material, so even if it is exposed to large waves during the construction period, the waves will not dissipate. It passes through the main embankment body and does not create much resistance. In addition, the wave-dissipating materials are stacked randomly on the grid-shaped wave-dissipating laying material to build an outer embankment body, and the wave-dissipating materials engage with the grid pattern and fall off due to waves. After the condition is maintained so that it will not dissipate, wave-dissipating materials are stacked directly on the water bottom between the main levee body and the outer levee body to construct the inner levee body, which is piled with wave-dissipating materials. Even during this period, there is no uneconomical loss of the wave-dissipating material on the inner bank body being dissipated by the waves.
図において、３は杭により構成した角筒型格子
状枠体で、それは、多数の鋼杭４を所要の間隔を
おいて水底Ｇの方形線上に打設植立し、その各杭
の頭部を型鋼等による複数の横桟５，５′で形成
した方形枠６，６′により連結して構成され、該
枠体３中に、上記間隔から脱出しない大きさの石
材またはコンクリートブロツク等の消波材７を充
填することによつて、主堤体Ａを築造する。
In the figure, reference numeral 3 denotes a rectangular cylindrical lattice frame made up of piles, which consists of a large number of steel piles 4 driven and planted on a rectangular line of the water bottom G at required intervals, and the head of each pile. are connected by rectangular frames 6, 6' formed by a plurality of horizontal bars 5, 5' made of shaped steel, etc., and in the frame 3 there is a block such as a stone or concrete block of a size that does not escape from the above-mentioned interval. The main embankment body A is constructed by filling the corrugated material 7.
次に、この主堤体Ａから所要の間隔たとえば数
メートル離れた外周水底Ｇ面に、所要数の格子状
消波敷設材ａを敷設する。 Next, a required number of lattice-shaped wave-dissipating laying materials a are laid on the outer water bottom surface G at a required distance, for example, several meters, from the main embankment body A.
この格子状消波敷設材ａは、所要長さのＨ型鋼
である鋼材１を縦横に５本ずつ適当な間隔をお
き、平面正方形の格子状目２が形成されるように
重合配置し、互いに交わつた接合部分を溶接等に
より連結して平面正方形の格子状目２を形成して
なるものである。 This lattice-shaped wave-dissipating laying material a is made by placing five steel members 1, which are H-shaped steels of a required length, at appropriate intervals vertically and horizontally, overlapping each other so as to form a lattice-like mesh 2 with a square plane. The intersecting joint portions are connected by welding or the like to form a grid-like mesh 2 having a square plane.
そして、各格子状消波敷設材ａに、格子状目２
から脱出することなくそれに係合する大きさの石
材またはコンクリートブロツク等の消波材８を乱
積みし、消波材乱積み外側堤体Ｂを築造する。 Then, each lattice-shaped wave-dissipating laying material a has 2 lattice-shaped holes.
Wave-dissipating materials 8 such as stones or concrete blocks of a size that can be engaged with the wave-dissipating materials without escaping are piled up randomly, and an outer embankment body B is built with the wave-dissipating materials randomly piled up.
そのあと、主堤体Ａと外側堤体Ｂとの間の前記
所要の間隔の水底Ｇ上に、直接、上記消波材８よ
り小なる石材またはコンクリートブロツク等の消
波材９を乱積み堆積して、主堤体Ａ及び外側堤体
Ｂと一体化した消波材乱積み内側堤体Ｃを築造す
る。 Thereafter, wave-dissipating materials 9 such as stones or concrete blocks smaller than the wave-dissipating materials 8 are piled up directly on the water bottom G at the required interval between the main levee body A and the outer levee body B. Then, an inner levee body C, which is integrated with the main levee body A and the outer levee body B, and is piled with wave-dissipating materials is constructed.
第３図の１０は、上記角筒型格子状枠体３の各
杭頭相互を強固に連結し、かつその各杭頭の防食
のために打設した場所打ちコンクリートを示す。 Reference numeral 10 in FIG. 3 indicates cast-in-place concrete that is cast to firmly connect the pile heads of the square cylindrical lattice frame 3 and to prevent corrosion of each pile head.
以上により、主堤体Ａの外周を消波材乱積み内
側堤体Ｃが囲繞し、さらにその外周を格子状消波
敷設材ａに支持された消波材乱積み外側堤体Ｂが
囲繞する本発明防波構造物が構築される。 As a result of the above, the outer periphery of the main levee body A is surrounded by the inner levee body C in which the wave-dissipating materials are stacked randomly, and the outer periphery is further surrounded by the outer levee body B in which the wave-dissipating materials are stacked randomly and supported by the lattice-shaped wave-dissipating laying material a. The waveproof structure of the present invention is constructed.
本発明防波構造物は、上記構成からなり、特
に、外側堤体の消波材は、格子状消波敷設材に積
載されて、格子状目に係合あるいは係止している
ので、直接波浪により脱落、散逸するようなこと
がなく、また、格子状消波敷設材及びこれに係合
している消波材の設置部分が洗掘されたときに
も、当該消波材は上記係合によつて脱落、散逸す
るのを防止される。
The wave-breaking structure of the present invention has the above-mentioned configuration, and in particular, the wave-dissipating material of the outer embankment is loaded on the lattice-shaped wave-dissipating laying material and engages or locks with the lattice-shaped mesh, so that the wave-dissipating material of the outer embankment is directly The wave-dissipating material will not fall off or dissipate due to waves, and even if the lattice-shaped wave-dissipating material and the installed part of the wave-dissipating material engaged with it are scoured, the wave-dissipating material will remain in the above-mentioned state. This prevents it from falling off or dissipating in case of accident.
したがつて、この外側堤体により囲繞されてい
る内側堤体の消波材が散逸するのも防止される。 Therefore, the wave-dissipating material of the inner embankment surrounded by the outer embankment is also prevented from dissipating.
しかも、内側堤体の消波材は、主堤体の外周水
底に徐々に食い込み、各杭を強固に囲繞する状態
となる。 Moreover, the wave-dissipating material of the inner embankment body gradually bites into the outer water bottom of the main embankment body, and becomes in a state where each pile is strongly surrounded.
このため、主堤体は、その杭の基部を洗掘され
ることなく、反対に水底地層の水平方向の抵抗力
が増大することとなり、この主堤体が波浪によつ
て倒壊するというようなおそれがない。 For this reason, the main levee body is not scoured at the base of its piles, and on the contrary, the horizontal resistance of the underwater strata increases, making it difficult for the main levee body to collapse due to waves. There is no fear.
また、本発明構築法によれば、上記防波構造物
を安全にかつ経済的に構築できる。 Moreover, according to the construction method of the present invention, the above-mentioned wave-break structure can be constructed safely and economically.
すなわち、本発明構築法によれば、主堤体は、
杭の角筒型格子状枠体に消波材を充填するもので
あるから、構築期間中に大きな波浪を受けても、
その波浪は該主堤体を通過し、大きな抵抗となら
ない。また、格子状消波敷設材上に消波材を乱積
みして消波材乱積み外側堤体を築造し、その消波
材が格子状目に係合することにより波浪によつて
脱落、散逸しない状態にしたあとにおいて、上記
主堤体と外側堤体との間の水底に消波材を直接乱
積みすることにより消波材乱積み内側堤体を築造
するので、構築後はもちろん構築期間中において
も、その内側堤体の消波材を波浪で散逸させてし
まう不経済がない。したがつて、所期の防波構造
物を、波浪等の影響をあまり受けずに比較的短い
工期で、工費も節減して構築でき、杭の角筒型格
子状枠体による防波構造物の応用範囲を広げるこ
とが可能となつた。 That is, according to the construction method of the present invention, the main embankment body is
The square cylindrical lattice-like frame of the pile is filled with wave-absorbing material, so even if it is exposed to large waves during the construction period,
The waves pass through the main embankment body and do not create much resistance. In addition, the wave-dissipating materials are stacked randomly on the grid-shaped wave-dissipating laying material to build an outer embankment body, and the wave-dissipating materials engage with the grid pattern and fall off due to waves. After creating a state in which they do not dissipate, wave-dissipating materials are piled directly on the bottom of the water between the main levee body and the outer levee body to build the inner levee body, which is piled with wave-dissipating materials. Even during this period, there is no uneconomical loss of the wave-dissipating material on the inner bank body being dissipated by the waves. Therefore, the desired wave-break structure can be constructed in a relatively short period of time without being affected by waves, etc., and with reduced construction costs. It has become possible to expand the range of applications.
図面第１図は格子状消波敷設材の側面図、第２
図は同上の平面図、第３図は本発明防波構造物の
断面図、第４図は同上の平面図で、消波材はその
一部のものだけを示している。
４……杭、３……角筒型格子状枠体、７，８，
９……消波材、Ａ……主堤体、Ｇ……水底、Ｃ…
…消波材乱積み内側堤体、ａ……格子状消波敷設
材、Ｂ……消波材乱積み外側堤体。
Figure 1 of the drawing is a side view of the lattice-shaped wave-dissipating laying material, Figure 2
The figure is a plan view of the same as above, FIG. 3 is a sectional view of the wave-break structure of the present invention, and FIG. 4 is a plan view of the same as above, in which only a part of the wave-dissipating material is shown. 4... Pile, 3... Square tubular lattice frame, 7, 8,
9... wave-dissipating material, A... main levee body, G... water bottom, C...
... Inner embankment body with wave-dissipating material piled up, a... Grid-shaped wave-dissipating laying material, B... Outer embankment body with wave-dissipating material piled up randomly.
Claims (1)
体内に多数の消波材が充填している主堤体の外周
水底面上にある消波材乱積み内側堤体のさらに外
周に、格子状消波敷設材に乗載させた消波材乱積
み外側堤体が設置され、これら主堤体、内、外側
堤体が一体化していることを特徴とする防波構造
物。 ２ 水底に多数の杭を所定の間隔で打設して設立
した角筒型格子状枠体中に消波材を充填して主堤
体を築造したのち、その主堤体から所要の間をお
いた水底面上に、鋼材製の格子状消波敷設材を敷
設し、その上に、消波材を乱積みして消波材乱積
み外側堤体を築造し、そのあと、この外側堤体と
上記主堤体との間の水底面上に直接消波材を乱積
みして上記主堤体及び外側堤体と一体な消波材乱
積み内側堤体を築造することを特徴とする防波構
造物の構築法。[Scope of Claims] 1. A square tubular lattice frame formed by a large number of piles to be erected and filled with a large number of wave-absorbing materials inside the outer water bottom surface of the main embankment where wave-dissipating materials are stacked in large numbers. Further on the outer periphery of the levee body, an outer levee body is installed in which wave-dissipating materials are laminated on a lattice-shaped wave-dissipating laying material, and the main levee body, inner and outer levee bodies are integrated. Wavebreak structure. 2. After constructing the main levee body by filling wave-dissipating material into a rectangular cylindrical lattice-like frame established by driving a large number of piles into the water bottom at predetermined intervals, A steel lattice-shaped wave-dissipating material is laid on the water bottom, and on top of that, wave-dissipating materials are stacked randomly to construct an outer embankment body. The method is characterized in that wave-dissipating materials are piled up directly on the water bottom surface between the main levee body and the main levee body to construct an inner levee body with wave-dissipating material piled up, which is integrated with the main levee body and the outer levee body. How to construct a wave-break structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62195307A JPS6347406A (en) | 1987-08-06 | 1987-08-06 | Breakwater structure and its construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62195307A JPS6347406A (en) | 1987-08-06 | 1987-08-06 | Breakwater structure and its construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6347406A JPS6347406A (en) | 1988-02-29 |
| JPS6332923B2 true JPS6332923B2 (en) | 1988-07-01 |
Family
ID=16338979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62195307A Granted JPS6347406A (en) | 1987-08-06 | 1987-08-06 | Breakwater structure and its construction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6347406A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1054019A (en) * | 1996-08-09 | 1998-02-24 | Soken Kogyo Kk | Artificial sands nourishment method of seashore making use of lattice-like frame wave dissipation construction material and construction method thereof |
| US6830411B1 (en) * | 2003-11-18 | 2004-12-14 | Dominick Amari | Artificial island and method of construction thereof |
| JP5322068B1 (en) * | 2012-10-26 | 2013-10-23 | 国土交通省東北地方整備局長 | Construction method of submarine |
| JP5370901B1 (en) * | 2013-06-04 | 2013-12-18 | 国土交通省東北地方整備局長 | Submarine |
| KR101673473B1 (en) * | 2014-12-16 | 2016-11-08 | 한국해양과학기술원 | Coastal erosion Coastal Structures double proof |
-
1987
- 1987-08-06 JP JP62195307A patent/JPS6347406A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6347406A (en) | 1988-02-29 |
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