CN112627216A - Flat-plate permeable breakwater structure supported by box-type foundation - Google Patents
Flat-plate permeable breakwater structure supported by box-type foundation Download PDFInfo
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- CN112627216A CN112627216A CN201910902315.8A CN201910902315A CN112627216A CN 112627216 A CN112627216 A CN 112627216A CN 201910902315 A CN201910902315 A CN 201910902315A CN 112627216 A CN112627216 A CN 112627216A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000002689 soil Substances 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 5
- 239000011150 reinforced concrete Substances 0.000 claims description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 241001330002 Bambuseae Species 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000002238 attenuated effect Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 claims description 2
- 239000012466 permeate Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000035515 penetration Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Revetment (AREA)
Abstract
The invention discloses a flat plate permeable breakwater structure supported by a box-cylinder type foundation, which comprises a box-cylinder type foundation structure, wherein the box-cylinder type foundation structure is composed of a foundation cylinder and a top plate arranged at the upper end of the foundation cylinder, vertical upright posts are arranged on the top plate, the vertical upright posts support a horizontal plate, and through holes are formed between the vertical upright posts and the horizontal plate so as to limit the radius of a vertical short shaft of a water mass point doing elliptic motion, thereby preventing the transmission of wave energy. The breakwater structure has wave absorption and current penetration functions, is an integral prefabricated structure, is simple and convenient to install and construct on site, low in construction cost, good in structural stability and durability and suitable for soft soil foundations with large water depths.
Description
Technical Field
The invention belongs to a building structure in the field of port engineering, and particularly relates to a flat permeable breakwater structure supported by a box-cylinder foundation.
Background
In order to protect the marine ecological environment and meet the social and economic requirements, the breakwater in the port is required to have a flow penetrating function. On one hand, the breakwater has the function of blocking wave energy transmission, on the other hand, the breakwater cannot block tidal current, and no good structural scheme with practical performance exists in the current engineering. The breakwater with the function of permeable flow is built on the soft soil foundation, the technical difficulty is high, and the engineering cost is also high.
The traditional breakwater blocks the transmission of wave energy by building a solid structure, but the solid structure blocks the tide, so that the exchange capacity of water bodies inside and outside a port is weakened, and the marine ecological environment is influenced. In order to realize the through flow, some breakwater structures with through flow spaces, such as upright cylinder structures arranged at intervals, comb-type caisson structures and the like, appear, but the structures have great cost when the problems of stability and structural strength are to be met on a soft foundation. The structure concept of eliminating wave energy by using a horizontal plate and a buoyancy tank is also provided, the structure can be permeable, but the problem of an anchorage of the structure cannot be well solved, and the wave eliminating effect is not very ideal.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a flat plate permeable breakwater structure supported by a box-type foundation, which is suitable for soft soil seabed foundations under the condition of larger water depth and has the characteristics of wave resistance, no water flow resistance, good structure stability and durability, less construction material consumption, less field construction amount and lower engineering cost.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the utility model provides a dull and stereotyped breakwater structure that permeates current of box tube type foundation support, includes box tube type foundation structure, box tube type foundation structure comprises a basic section of thick bamboo and the roof of setting in basic section of thick bamboo upper end, its characterized in that sets up vertical stand on the roof, and vertical stand supports the horizontal plate, forms the through-hole between vertical stand and the horizontal plate to the restriction water particle is the vertical minor axis radius of elliptical motion, thereby prevents the transmission of wave energy.
In the technical scheme, the basic cylinder is a cylinder or a polygonal cylinder, and the number of the basic cylinders is 1-12, preferably 4.
In the technical scheme, two adjacent foundation cylinders are connected by the connecting wall.
In the technical scheme, the horizontal plates are arranged at unequal intervals in the vertical direction, the vertical interval between the lower plates is large, the vertical interval between the upper plates is small, the vertical interval between the horizontal plates is 0.5-10 m, and the number of layers of the horizontal plates is 3-10.
In the technical scheme, the horizontal plate is a rectangular plate, the width along the wave propagation direction is 15-50 m, the length perpendicular to the width direction is 15-40 m, and the thickness is 0.01-1.5 m.
In the technical scheme, the vertical columns are cylinders, the diameter of each vertical column is 0.5-2 m, and the center distance between every two adjacent vertical columns is 3-15 m.
In the technical scheme, the vertical columns are elliptic columns (namely the cross sections of the vertical columns are elliptic), the diameters of the elliptic columns are 0.5-2 m (namely the major axes of the elliptic columns), and the center distance between every two adjacent vertical columns is 3-15 m.
In the above technical scheme, the top plate and the vertical upright post of the foundation barrel, and the vertical upright post and the horizontal plate are all rigidly connected.
In the technical scheme, the foundation cylinder and the connecting wall are made of steel materials or reinforced concrete materials; the top plate of the foundation cylinder, the vertical upright posts and the horizontal plate are made of reinforced concrete materials.
The invention has the advantages and beneficial effects that: the breakwater structure has wave absorption and flow penetration functions, is an integral prefabricated structure, is simple and convenient to install and construct on site, and does not need to reinforce soft soil foundation soil; the structure has good stability and durability, is suitable for soft soil foundations with larger water depth, and has lower construction cost.
Drawings
Fig. 1 is a schematic cross-sectional view perpendicular to the axis of a breakwater according to the present invention.
Fig. 2 is a schematic top view of the present invention.
Fig. 3 is a schematic longitudinal section of a breakwater composed of a plurality of groups of structures of the present invention.
In the figure, 1 is seabed foundation soil, 2 is a foundation cylinder, 3 is a connecting wall between the foundation cylinders, 4 is a foundation cylinder top plate, 5 is a ventilation and water pumping hole, 6 is a vertical upright post, and 7 is a horizontal plate.
Fig. 4 is a screen shot of the effect of blocking wave transmission of the flat-plate permeable breakwater structure of the present invention simulated by a computer.
Fig. 5 is a test photograph of an experimental result of the wave transmission blocking effect of the flat-plate permeable breakwater structure of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples.
The flat permeable breakwater structure of the box-cylinder foundation support as shown in fig. 1-3 comprises a box-cylinder foundation structure inserted into seabed foundation soil 1, and vertical upright posts 6 and horizontal plates 7 which are located on the box-cylinder foundation structure and connected with the box-cylinder foundation structure into a whole, wherein the box-cylinder foundation structure is formed by arranging four foundation cylinders 2 without bottoms and with top plates in a square shape, and connecting walls 3 are connected between every two adjacent foundation cylinders. Ventilation and water pumping holes 5 are arranged on the top plate 4 of each base cylinder. The top plate 4 of the foundation cylinder is provided with vertical upright posts 6 which are arranged in a matrix manner, and the vertical upright posts 6 support a horizontal plate 7 and are vertically connected with the horizontal plate 7.
The diameter of the single base cylinder 2 is 12.5m, the height is 10m, and the wall thickness is 0.3 m; the clear distance between the foundation cylinders is 5m, namely the width of a connecting wall between the foundation cylinders is 5m, the height of the connecting wall is 10m, and the thickness of the connecting wall is 0.5 m; the length and the width of the plane scale of the box-cylinder type foundation structure formed by connecting 4 foundation cylinders are both 30 m; the top plate above the foundation cylinder was connected to form an integral plate having a length and width of 32m and a thickness of 1 m.
49 upright columns are arranged on a top plate of the box-cylinder type foundation structure in 7 rows and 7 columns, the upright columns are cylinders, the diameter of each upright column is 1m, the distance between the centers of the rows and the columns of the upright columns is 5m, and the height of each upright column is 15 m.
The horizontal plates supported by the vertical upright posts are 7 layers in total, the length and the width of the plane scale of each layer of horizontal plate are both 35m, and the thickness is 0.3 m; the vertical clear distance between the lowest layer of horizontal plate and the top plate of the box-cylinder type foundation is 4.2m, the vertical clear distance between the upper 3 layers of horizontal plates is 1.7m, and the vertical clear distance between the upper 3 layers of horizontal plates is 1.2 m. The vertical height between the top surface of the uppermost horizontal plate and the top surface of the top plate of the box-cylinder type foundation structure is 15m, and is the same as the height of the vertical upright post.
The foundation cylinder and the connecting wall are made of steel materials, and the top plate of the foundation cylinder, the vertical upright post and the horizontal plate are made of reinforced concrete materials.
The top plate and the vertical upright posts of the box-cylinder foundation structure, and the vertical upright posts and the horizontal plates of all the layers are rigidly connected.
After the structure of the invention is integrally prefabricated on land, the structure can be slipped or hoisted onto a semi-shallow barge to be towed to a deeper water area, the semi-shallow barge sinks, the structure is floated by inflating the foundation cylinder 2, and then the structure is air-floated and towed to an installation site. And then, inflating, floating and positioning the structure, discharging air in the foundation barrel 2 after positioning, sinking the foundation barrel 2 into the seabed soil by the structure depending on the dead weight until the foundation barrel 2 is filled with water, then pumping out the water in the foundation barrel 2, continuing to sink the foundation barrel 2 until the bottom surface of the top plate 4 of the foundation barrel is completely contacted with the soil surface, and installing the structure in place.
The structure of the invention is continuously and sequentially installed along the designed axis direction of the breakwater, thus forming the permeable breakwater. The structure with the above dimensions is suitable for the marine environmental conditions of 10m thick soft soil layer at the seabed, 12m deep water, 7m maximum design wave height and less than 15s average wave period, and after the waves pass through the permeable breakwater, the wave height is attenuated to below 1.0m without basically influencing ocean current in any direction.
The computer simulates the effect of a flat permeable breakwater structure in blocking the transmission of waves, as shown in fig. 4, when waves pass through the breakwater structure, the waves become gentle currents, and it can be known that the structure can block the transmission of wave energy. The transmission of wave energy is achieved by the elliptical motion of water particles. The larger the wave energy is, the larger the major and minor axes of the ellipse of the water particle doing the elliptic motion are. If multiple layers of horizontal plates are placed in a water body, the vertical spacing of the horizontal plates is small enough, and the length of the horizontal plates along the wave propagation direction is long enough, the radius of the vertical short axis of the elliptic motion of the water particle can be limited, and therefore the transmission of wave energy is prevented. As shown in fig. 5, in the wave prevention experiment of the flat-plate permeable breakwater structure supported by the box-and-tube foundation by using the technical scheme of the embodiment, waves can be changed into gentle water flow through the breakwater structure.
The breakwater structure is a hollow structure, and has the advantages of small self weight, strong structural integrity and high rigidity. Under the action of wave load, the horizontal wave force borne by the structure is small, and the vertical wave force is large. The box-cylinder type foundation structure inserted into the soft soil foundation can just bear larger vertical pressure and uplift resistance, so that the breakwater structure is kept stable.
The breakwater constructed by the invention has the functions of wave absorption and current penetration, the consumption of structural materials is less, the field construction amount is less, the engineering cost is lower, and the increase amplitude of the engineering cost along with the increase of water depth is smaller. The structure is prefabricated, and the durability is good, and the maintenance work volume of life is few.
The invention has been described in an illustrative manner, and it is to be understood that any simple variations, modifications or other equivalent changes which can be made by one skilled in the art without departing from the spirit of the invention fall within the scope of the invention.
Claims (10)
1. The utility model provides a dull and stereotyped breakwater structure that permeates current of box tube type foundation support, includes box tube type foundation structure, box tube type foundation structure comprises a basic section of thick bamboo and the roof of setting in basic section of thick bamboo upper end, its characterized in that sets up vertical stand on the roof, and vertical stand supports the horizontal plate, forms the through-hole between vertical stand and the horizontal plate to the restriction water particle is the vertical minor axis radius of elliptical motion, thereby prevents the transmission of wave energy.
2. The flat permeable breakwater structure supported by a box-and-tube foundation of claim 1, wherein the foundation tube is a cylinder or a polygonal tube, and the number of the foundation tubes is 1-12, preferably 4.
3. The flat permeable breakwater structure supported by a box-and-tube foundation of claim 1, wherein adjacent foundation tubes are connected by a connecting wall.
4. The flat permeable breakwater structure supported by the box-and-tube foundation of claim 1, wherein the horizontal plates are arranged at unequal intervals in the vertical direction, the vertical interval between the lower plates is large, the vertical interval between the upper plates is small, the vertical interval between the horizontal plates is 0.5-10 m, and the number of the horizontal plates is 3-10.
5. The flat permeable breakwater structure supported by a box-and-tube foundation of claim 1, wherein the horizontal plate is a rectangular plate having a width of 15m to 50m in a wave propagation direction, a length of 15m to 40m perpendicular to the width direction, and a thickness of 0.01m to 1.5 m.
6. The flat permeable breakwater structure supported by a box-type foundation according to claim 1, wherein the vertical columns are cylinders or elliptic columns, the diameter of each cylinder is 0.5-2 m, the diameter of each elliptic column is 0.5-2 m, and the center-to-center distance between adjacent vertical columns is 3-15 m.
7. The flat permeable breakwater structure supported by a box-and-tube foundation of claim 1, wherein the top plate of the foundation tube is rigidly connected to the vertical columns and the vertical columns are rigidly connected to the horizontal plate.
8. The flat plate permeable breakwater structure of a tank-type foundation support according to claim 1, wherein the foundation tank and the connecting wall are made of steel materials or reinforced concrete materials; the top plate of the foundation cylinder, the vertical upright posts and the horizontal plate are made of reinforced concrete materials.
9. The permeable breakwater formed by using the flat permeable breakwater structure of the tank-and-tube type foundation support according to any one of claims 1 to 8, wherein the flat permeable breakwater structure of the tank-and-tube type foundation support is sequentially installed in the direction of the designed axis of the breakwater in a straight line to form a permeable breakwater.
10. The use of a box-and-tube foundation supported flat-plate permeable breakwater structure according to any one of claims 1 to 8 or the use of a permeable breakwater according to claim 9 in marine environmental conditions where the sea floor has a soft soil layer thickness of 10m, a water depth of 12m, a maximum design wave height of 7m, and an average wave period of less than 15s, wherein the wave height is attenuated to below 1.0m after the waves pass through, without substantially affecting the ocean current in any direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910902315.8A CN112627216A (en) | 2019-09-24 | 2019-09-24 | Flat-plate permeable breakwater structure supported by box-type foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910902315.8A CN112627216A (en) | 2019-09-24 | 2019-09-24 | Flat-plate permeable breakwater structure supported by box-type foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112627216A true CN112627216A (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910902315.8A Pending CN112627216A (en) | 2019-09-24 | 2019-09-24 | Flat-plate permeable breakwater structure supported by box-type foundation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115949029A (en) * | 2023-02-21 | 2023-04-11 | 中国水产科学研究院渔业工程研究所 | Flat-plate permeable breakwater structure supported by box-type foundation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040006610A (en) * | 2002-07-13 | 2004-01-24 | 원 회 양 | Breakwater capconcrete structure for overflow waves interception |
| CN201214785Y (en) * | 2007-12-28 | 2009-04-01 | 天津港(集团)有限公司 | Cylinder moveable box reel type foundation structure member with rib pile |
| CN102011374A (en) * | 2010-12-09 | 2011-04-13 | 河海大学 | Openwork breakwater |
| TWI560340B (en) * | 2015-11-10 | 2016-12-01 | Gyeong-Ja Lee | Breakwater structure |
| TW201730409A (en) * | 2015-11-27 | 2017-09-01 | 金石文 | Structure for attenuating wave overtopping, breakwater structure having the same, and method for attenuating wave overtopping using the same |
-
2019
- 2019-09-24 CN CN201910902315.8A patent/CN112627216A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040006610A (en) * | 2002-07-13 | 2004-01-24 | 원 회 양 | Breakwater capconcrete structure for overflow waves interception |
| CN201214785Y (en) * | 2007-12-28 | 2009-04-01 | 天津港(集团)有限公司 | Cylinder moveable box reel type foundation structure member with rib pile |
| CN102011374A (en) * | 2010-12-09 | 2011-04-13 | 河海大学 | Openwork breakwater |
| TWI560340B (en) * | 2015-11-10 | 2016-12-01 | Gyeong-Ja Lee | Breakwater structure |
| TW201730409A (en) * | 2015-11-27 | 2017-09-01 | 金石文 | Structure for attenuating wave overtopping, breakwater structure having the same, and method for attenuating wave overtopping using the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115949029A (en) * | 2023-02-21 | 2023-04-11 | 中国水产科学研究院渔业工程研究所 | Flat-plate permeable breakwater structure supported by box-type foundation |
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Application publication date: 20210409 |
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