CN119021141A - A construction method for a water-permeable breakwater structure with self-contained wave-breaking function - Google Patents
A construction method for a water-permeable breakwater structure with self-contained wave-breaking function Download PDFInfo
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- 238000010276 construction Methods 0.000 title claims abstract description 39
- 238000009417 prefabrication Methods 0.000 claims abstract description 19
- 238000007667 floating Methods 0.000 claims abstract description 5
- 238000005192 partition Methods 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 239000004567 concrete Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims 3
- 238000009415 formwork Methods 0.000 claims 2
- 230000008859 change Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 51
- 238000000034 method Methods 0.000 description 11
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- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
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- 238000011065 in-situ storage Methods 0.000 description 3
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- 230000002787 reinforcement Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007123 defense Effects 0.000 description 2
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- 238000003908 quality control method Methods 0.000 description 2
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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
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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
- E02B3/062—Constructions floating in operational condition, e.g. breakwaters or wave dissipating walls
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- 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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Abstract
本申请提供了一种透水自带消浪功能的防波堤构筑物的施工方法，防波堤构筑物包括多个结构物，多个结构物呈环形阵列分布，相邻两个结构物之间具有狭窄空间；结构物包括从下往上依次设置的基础结构和堤身结构，堤身结构上设有透水孔，堤身结构内部的空腔形成消浪腔，消浪腔与透水孔连通；施工方法包括：结构物在预制工厂分片或分段预制，岸边平台总组舾装，模块车滚装上船出运，现场下潜，结构物内的空腔充气浮运，起重船助浮就位，结构物负压下沉安装。本申请中，结构物的消浪腔和相邻结构物之间的狭窄空间均改变了波浪行进速度和流场，形成反射波、入射波、涡流及空泡，消耗波能。结构物在预制工厂分片或分段预制，提高了功效和质量，缩短了工期。
The present application provides a construction method for a permeable breakwater structure with a self-contained wave-breaking function. The breakwater structure includes a plurality of structures, which are distributed in a circular array, and a narrow space is provided between two adjacent structures; the structure includes a foundation structure and a levee structure arranged in sequence from bottom to top, and a permeable hole is provided on the levee structure, and the cavity inside the levee structure forms a wave-breaking cavity, and the wave-breaking cavity is connected to the permeable hole; the construction method includes: the structure is prefabricated in pieces or sections in a prefabrication factory, the shore platform is assembled and outfitted, the module vehicle is rolled onto the ship for shipment, the site is submerged, the cavity in the structure is inflated and floated, the crane ship assists in floating in place, and the structure is installed by sinking under negative pressure. In the present application, the wave-breaking cavity of the structure and the narrow space between adjacent structures change the wave travel speed and flow field, forming reflected waves, incident waves, vortices and cavitations, and consuming wave energy. The structure is prefabricated in pieces or sections in a prefabrication factory, which improves the efficiency and quality and shortens the construction period.
Description
Technical Field
The application belongs to the technical field of water engineering and sea defense, and particularly relates to a construction method of a breakwater structure with a water permeable and wave eliminating function.
Background
With the enhancement of national force, national defense construction, fishery cultivation, port and wharf and artificial island construction start to develop to deep open sea; the sea water depth and wave height are extremely bad, and in order to form effective protection, the sea protection structure must be constructed to resist the stormy wave condition, and the ultra-large structure must be constructed to resist the external bad sea condition. The vertical dyke is a common structural type in harbor and sea protection engineering. The construction of such structures at sea will change the wave patterns that occur in the sea area in front of it, thereby affecting the effect of the waves on the building and creating a shelter for the water area behind the structure. For example: the first ultra-large deep open sea marine ranching test point project in China has the water depth of about-30 m, the wave height of 15m and the wavelength period of more than 10s, belongs to long-period waves, and has extremely strong destructive power. In order to effectively ensure the safety of the net cage and the breeding farm, the net cage and the breeding farm are surrounded into a ring shape by adopting hydraulic structures to form a relatively enclosed breeding base so as to resist the surrounding severe sea condition.
The offshore operation, the sea condition difference, the best avoidance of typhoon season construction under the sea condition need to be selected, the construction period is compact, the engineering quantity is large, the traditional structure and the prefabrication process are low in construction efficiency, and the construction period requirement cannot be met; the traditional marine protection structure generally adopts a straight wall structure, has poor wind and wave resistance, and reduces the shielding capacity for the water area behind the structure.
Disclosure of Invention
The embodiment of the application aims to provide a construction method of a breakwater structure with a water permeable and wave eliminating function, which aims to solve the technical problems of low construction efficiency and poor capability of resisting stormy waves of the structure in the prior art.
In order to achieve the above purpose, the application adopts the following technical scheme: the construction method of the breakwater structure with the wave dissipation function is provided, the breakwater structure comprises a plurality of structures, the structures are distributed in an annular array, and a narrow space is reserved between two adjacent structures; the structure comprises a foundation structure and a dyke body structure which are sequentially arranged from bottom to top, a water permeable hole is formed in the dyke body structure, a wave dissipation cavity is formed in the cavity of the dyke body structure, and the wave dissipation cavity is communicated with the water permeable hole; the construction method comprises the following steps: the structure is prefabricated in segments or sections in a prefabricating factory, a shore platform assembly outfitting, a module vehicle is rolled on a ship to go out for transportation, the module vehicle is submerged in the field, a cavity in the structure is inflated for floating transportation, a crane ship is assisted in floating and positioning, and the structure is installed in a negative pressure sinking mode.
Optionally, the foundation structure comprises a base and a top plate, the bottom of the base is embedded in the seabed sludge, and the top of the base is connected with the top plate; the base comprises an annular outer wall, an annular inner wall and a plurality of partition boards; the annular outer wall is sleeved on the annular inner wall, the partition plates are connected to the annular outer wall and the annular inner wall, and a plurality of partition plates are arranged at intervals to divide a cavity between the annular outer wall and the annular inner wall into a plurality of cabins.
Optionally, prefabricating the base structure comprises:
Prefabricating a partition plate, carrying out industrial production on the partition plate in a workshop by using a flat plate die assembly line, prefabricating and steaming the vertical split horizontal double-laminated plates according to the length dimension, standing outside the workshop, and vertically piling up;
prefabricating wall body in a slicing mode, reasonably slicing according to a curved surface approximate straight line, constructing in a special mould table production line in a double-lamination mode, steam curing, transporting to a workshop for turning over, and vertically piling up; the wall body fragments are used for manufacturing the annular outer wall and the annular inner wall;
prefabricating a top plate, adopting a single-laminated slab mode, prefabricating and piling horizontally according to structural fragments, and pouring concrete at the top of the laminated slab in situ.
Optionally, after the prefabrication of the foundation structure is completed, transporting or lifting the foundation structure to a platform assembly area respectively, and quickly and accurately positioning the foundation structure according to terrace line drawing and tooling structure, and assembling the foundation structure in sequence from inside to outside; binding joint reinforcing steel bars after the annular outer wall, the annular inner wall and the partition plate are assembled, and supporting a joint template; after the joint templates are completely erected, hoisting the top layer single-sided superimposed sheet, and binding connecting ribs among the wall body segments and connecting reinforcing bars with the top plate; after the binding of the steel bars is completed, the joint and the concrete of the top plate are poured at one time; and (5) maintaining and storing according to the set time after pouring is completed.
Optionally, the embankment body structure comprises a plurality of upright posts and a plurality of arch rings, one ends of the upright posts are arranged on the foundation structure, and the upright posts are distributed in an array along the circumferential direction of the arch rings; the plurality of arch rings are sequentially stacked from bottom to top along the length direction of the upright post, water permeable holes are formed in the outer walls of the arch rings, wave dissipation cavities are formed in the cavities inside the arch rings, and the wave dissipation cavities are communicated with the water permeable holes.
Optionally, the upright post adopts the whole horizontal binding of steel reinforcement cage, and horizontal prefabrication technology adopts the steam maintenance in the workshop, and the workshop turns over outward, and place storage technology.
Optionally, the upright penetrates through the top plate and is connected with the base into a whole; the bottom of the upright post is provided with a vertical steel bar and a horizontal steel bar which are connected with the top plate.
Optionally, the dike body structure further comprises a pull rod, the pull rod is horizontally arranged, and two ends of the pull rod are respectively connected with the two upright posts; and the middle of the upright post wall is reserved with the pull rod connecting hole.
Optionally, the arch ring comprises a plurality of arc sheets, and the arc sheets are sequentially connected in a tail-to-tail mode to form an annular structure; prefabricating the circular arc sheets, wherein the vertical annular dimensions of a plurality of circular arc sheets are equal, and a part of the circular arc sheets are internally provided with the water permeable holes; and pouring and curing the arc pieces on a special die table, turning over after the arc pieces reach preset strength, and transporting the arc pieces to the outside of a workshop for piling.
Optionally, when the embankment body structure is assembled, the appearance assembly is completed according to the sequence of the upright post and the arch ring, the overall verticality and ellipticity are checked to meet the requirements, then the pull rod is installed, and the check is performed again to be qualified; and (3) completing cast-in-place concrete of each joint on the general assembly platform, and finally applying prestress to the upright post, closing the pull rod connecting hole and completing the general assembly of the embankment body structure.
The construction method of the breakwater structure with the water permeability and the wave dissipation function has the beneficial effects that:
(1) Compared with the prior art, the wave eliminating device has the advantages that the structures are distributed in the annular array, a narrow space is reserved between two adjacent structures, wave traveling speed and flow field are changed by the wave eliminating cavity of the structure and the narrow space between the adjacent structures, reflected waves, incident waves, vortex and cavitation are formed, and wave energy is consumed. The water flow and wave speed between the structures are increased, waves arrive in advance, the liquid level is raised (or lowered), water collision occurs after the flow field of the outer wall of the adjacent structure is changed, and partial reflection is performed, so that a part of wave energy is consumed; the water body entering the internal cavity in the early stage and the water body entering the internal cavity in the later stage fall and fluctuant, so that the other part of wave energy is consumed; due to the irregularity of the reflected wave and the phase difference with the incident wave, the incident wave and the reflected wave are mutually interfered to reduce the water surface oscillation and reduce the effect of wave impact pressure; the outer wall of the embankment body structure is provided with water permeable holes, and after incident waves enter the wave dissipation chamber through the water permeable holes, wave energy is consumed, so that the wave dissipation effect is achieved.
(2) Compared with the prior art, the structure is prefabricated in segments or sections in the prefabrication factory, so that the problem of shortage of construction land supply in the ultra-large structure prefabrication factory is solved, and a large amount of land can be saved in factory prefabrication; the small-piece factory is used for prefabrication, the total composition type solves the problem of insufficient large-scale hoisting equipment in workshops; the concrete members are produced in a workshop and standardized manner, so that the efficiency and quality are improved, and the problem of short construction period is solved; solves the problems of large steel bar binding difficulty, difficult quality control and inspection of large components; the small pieces are prefabricated, the small templates are simple to manufacture, the number of turnover times is large, and the method is green, energy-saving and environment-friendly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a breakwater structure with wave dissipating function according to an embodiment of the present application;
FIG. 2 is an enlarged schematic view of part of the A of FIG. 1;
FIG. 3 is a side elevation of a structure in a permeable breakwater structure with wave dissipating function according to an embodiment of the present application;
FIG. 4 is a front elevation of a structure in a permeable breakwater structure with wave dissipating function provided by an embodiment of the present application;
FIG. 5 is a rear elevation view of a structure in a permeable breakwater structure with wave dissipating function provided by an embodiment of the present application;
FIG. 6 is a cross-sectional view of a foundation structure in a breakwater structure with wave dissipating function through water according to an embodiment of the present application;
FIG. 7 is a cross-sectional view of a dike body structure in a water permeable breakwater structure with wave dissipating function according to an embodiment of the present application;
Fig. 8 is a cross-sectional view of a dike body structure (including a pull rod) in a breakwater structure with a water permeable and wave dissipating function according to an embodiment of the present application.
Wherein, each reference sign in the figure:
1-a structure; 2-narrow space;
10-infrastructure; 101-a base; 111-annular outer walls; 112-an annular inner wall; 113-a separator; 102-top plate;
20-a dike body structure; 201-an upright post; 202-an arch ring; 221-a water permeable hole; 222-wave eliminating cavity; 203-a pull rod; 204-support columns.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The construction method of the breakwater structure with the water permeability and the wave dissipation function provided by the embodiment of the application is described. Referring to fig. 1 and 2 together, the breakwater structure includes a plurality of structures 1, wherein the plurality of structures 1 are distributed in a ring-shaped array, and a narrow space 2 is provided between two adjacent structures 1; as shown in fig. 3, the structure 1 comprises a base structure 10 and a dyke body structure 20 which are sequentially arranged from bottom to top, water permeable holes 221 are formed in the dyke body structure 20, a wave dissipation cavity 222 is formed in a cavity inside the dyke body structure 20, and the wave dissipation cavity 222 is communicated with the water permeable holes 221; the construction method of the breakwater structure with the water permeability and the wave dissipation function comprises the following steps: the structural object 1 is prefabricated in segments or sections in a prefabricating factory, the shore platform assembly outfitting is assembled, the modular vehicle is rolled and mounted on a ship to go out for transportation, the modular vehicle is submerged in the field, the cavity in the structural object 1 is inflated and floating, the crane ship is assisted to float in place, and the structural object 1 is installed in a negative pressure sinking mode. Wherein, the module car can adopt a large SPMT car (self-propelled module transport car).
Compared with the prior art, in the breakwater structure with the wave dissipation function, a plurality of structures 1 are distributed in an annular array, a narrow space 2 is arranged between two adjacent structures 1, wave traveling speed and flow field are changed by the wave dissipation cavity 222 of each structure 1 and the narrow space 2 between the adjacent structures 1, and reflected waves, incident waves, vortex and cavitation are formed, so that wave energy is consumed. The water flow and wave speed between the structures 1 and 1 are increased, waves arrive in advance, the liquid level is raised (or lowered), water collision occurs after the flow field of the outer wall of the adjacent structure 1 is changed, and partial reflection is performed, so that a part of wave energy is consumed; the water body entering the internal cavity in the early stage and the water body entering the internal cavity in the later stage fall and fluctuant, so that the other part of wave energy is consumed; due to the irregularity of the reflected wave and the phase difference with the incident wave, the incident wave and the reflected wave are mutually interfered to reduce the water surface oscillation and reduce the effect of wave impact pressure; the outer wall of the embankment body structure 20 is provided with water permeable holes 221, and after the incident wave enters the wave eliminating chamber through the water permeable holes 221, the wave energy is consumed, so that the wave eliminating effect is achieved.
Compared with the prior art, the construction method of the breakwater structure with the wave dissipating function has the advantages that the structure 1 is prefabricated in the prefabricated factory in a segmented or sectioned mode, the problem of shortage of supply of construction land of the ultra-large structure prefabricated factory is solved, and a large amount of land can be saved due to factory prefabrication; the small-piece factory is used for prefabrication, the total composition type solves the problem of insufficient large-scale hoisting equipment in workshops; the concrete members are produced in a workshop and standardized manner, so that the efficiency and quality are improved, and the problem of short construction period is solved; solves the problems of large steel bar binding difficulty, difficult quality control and inspection of large components; the small pieces are prefabricated, the small templates are simple to manufacture, the number of turnover times is large, and the method is green, energy-saving and environment-friendly.
In one embodiment of the present application, referring to FIG. 3, the foundation structure 10 includes a base 101 and a top plate 102, the bottom of the base 101 is embedded in the seabed sludge, and the top of the base 101 is connected to the top plate 102; as shown in fig. 6, the base 101 includes an annular outer wall 111, an annular inner wall 112, and a plurality of partitions 113; the annular outer wall 111 is sleeved on the annular inner wall 112, the partition plates 113 are connected to the annular outer wall 111 and the annular inner wall 112, and the plurality of partition plates 113 are arranged at intervals to divide a cavity between the annular outer wall 111 and the annular inner wall 112 into a plurality of cabins.
In this embodiment, the cross-sectional dimension of the base structure 10 is larger than the cross-sectional dimension of the dike body structure 20, so that the overall center of gravity is shifted downward, and the stability of the structure 1 can be improved.
In this embodiment, the plurality of spacers 113 are arranged at intervals to divide the cavity between the annular outer wall 111 and the annular space into a plurality of cells, which can be used to adjust the negative pressure value of each cell and control the sinking speed and verticality of the foundation structure 10.
Specifically, the shape of the annular outer wall 111 is similar to a sports track, the front end and the rear end of the annular outer wall 111 are semicircular, and two sides are upright edges; the annular inner wall 112 is annular.
In one embodiment of the present application, prefabrication of the base structure 10 comprises:
prefabricating a partition plate 113, carrying out industrial production on the partition plate 113 in a workshop in a flat-plate module assembly line, prefabricating and steaming the vertical split horizontal double-laminated plates according to the length dimension, standing outside the workshop, and vertically piling up;
Prefabricating wall body in a slicing mode, reasonably slicing according to a curved surface approximate straight line, constructing in a special mould table production line in a double-lamination mode, steam curing, transporting to a workshop for turning over, and vertically piling up; the wall body fragments are used for manufacturing an annular outer wall 111 and an annular inner wall 112;
the top plate 102 is prefabricated, adopts a single-laminated slab form, is horizontally prefabricated and piled up according to structural fragments, and is used for pouring concrete at the top of the laminated slab in situ.
In one embodiment of the application, after the prefabrication of the foundation structure 10 is completed, the foundation structure is transported or lifted to a platform assembly area respectively, and the foundation structure is quickly and accurately positioned according to terrace line drawing and tooling structure and assembled in sequence from inside to outside; binding joint reinforcing steel bars after the annular outer wall 111, the annular inner wall 112 and the partition plates 113 are assembled, and supporting joint templates; after the joint templates are completely erected, hoisting the top single-sided superimposed sheet, binding connecting ribs among wall segments and connecting ribs with the top plate 102; after the binding of the steel bars is completed, the joint and the concrete of the top plate 102 are poured at one time; and (5) maintaining and storing according to the set time after pouring is completed.
In this embodiment, divide into the prefabricated unit of difference with foundation structure 10 according to structural style and size, prefabricated maintenance in the mill workshop, intelligent level is high, prefabricated precision is high, and the quality is reliable, and the progress is controllable, uses professional workman less, green.
In one embodiment of the present application, referring to fig. 3, the dike body structure 20 includes a plurality of columns 201 and a plurality of arches 202, one end of the columns 201 is mounted on the base structure 10, and the plurality of columns 201 are distributed in an array along the circumferential direction of the arches 202; the arch rings 202 are sequentially stacked from bottom to top along the length direction of the upright column 201, water permeable holes 221 are formed in the outer wall of each arch ring 202, as shown in fig. 8, wave dissipating cavities 222 are formed in the cavities inside the arch rings 202, and the wave dissipating cavities 222 are communicated with the water permeable holes 221.
In one embodiment of the application, the foundation (comprising the annular wall part and the radial wall part) of the upright column 201 is deeply embedded into the lower structure part and is integrally horizontally prefabricated, and the gantry crane is lifted and turned over one high and one low; and (5) storage in a storage yard, and mounting a general assembly platform. The upright 201 is a main stress member and bears various horizontal forces and bending moments, vertical steel bars must be continuous or joint force transmission is continuous and reliable, the upright 201 adopts the whole horizontal binding of a steel reinforcement cage, a horizontal prefabrication process, a workshop internal steam maintenance process, a workshop external turning process and a site storage process.
In one embodiment of the present application, the upright 201 passes through the top plate 102 and is integrally connected with the base 101; the bottom of the upright column 201 is provided with vertical steel bars and horizontal steel bars connected with the top plate 102. Reservation in the middle of the column 201 wall the pull rod 203 is connected with the hole.
In this embodiment, the upright posts 201 extend into the base 101 through the top plate 102, so that the connection stability of the dike body structure 20 and the foundation structure 10 can be improved; further, the arch ring 202 may extend into the base 101 and be integrally connected with the partition plate 113, so that not only the stability of connection can be improved, but also the stability of the structure 1 can be improved by moving the entire center of gravity downward.
In one embodiment of the present application, as shown in fig. 7, the dike body structure 20 further includes a tie rod 203, the tie rod 203 is horizontally disposed, and both ends of the tie rod 203 are respectively connected with the two upright posts 201; reservation in the middle of the column 201 wall the pull rod 203 is connected with the hole.
In this embodiment, by providing the pull rod 203, a plurality of the pillars 201 can be connected into a whole, so that the stability of the whole structure is improved.
In an embodiment of the present application, referring to fig. 7, the dike body structure 20 further includes support columns 204, the support columns 204 are disposed along the axis of the arch 202, the plurality of tie rods 203 are disposed, one ends of the plurality of tie rods 203 are connected to the support columns 204, and the other ends of the tie rods 203 are connected to one column 201 in a one-to-one correspondence.
In this embodiment, six upright posts 201 may be disposed on one structure 1, and the six upright posts 201 are distributed in a regular hexagon; the upright column 201 is used as a support of the arch ring 202, and water flow force, wave force, wind load and the like of the arch ring 202 are transmitted to the upright column 201, and the upright column 201 vertically adopts a prestress structure, so that extremely large external force and moment resistance are generated. Correspondingly, six pull rods 203 are also arranged, and the upright posts 201, the pull rods 203 and the support columns 204 form a whole, so that the overall rigidity of the embankment body structure 20 is improved, and the stress safety and reliability are ensured.
It will be appreciated that the number of columns 201, the dimensions of the base structure 10 and the bank structure 20 may all be varied for different water depth wave conditions, and that this is versatile.
In one embodiment of the present application, arch ring 202 includes a plurality of circular arc segments that are sequentially terminated to form an annular structure; prefabricating circular arc sheets, wherein the vertical circumferential dimensions of a plurality of circular arc sheets are equal, and a part of circular arc sheets are provided with water permeable holes 221; pouring and curing the arc pieces on a special die table, turning over after reaching preset strength, and transporting the arc pieces to the outside of a workshop for piling. Workshop pipelining, 24 hours of operation, intelligent degree is high, and industry workman's recruitment is few, and the time limit for a project has the guarantee, and product quality is high and stable, green, energy-conserving.
The pull rod 203 is prefabricated, and is integrally prefabricated in a workshop, and a cast-in-situ reinforcing steel bar head is reserved at the joint of the pull rod 203 and the upright 201.
In the embodiment, the arch ring 202 adopts a plurality of arc sheets, and the thickness and the reinforcement of the arc sheets meet the external resistance requirement; specifically, the arch ring 202 is cylindrical, and the cylindrical structure has good water flow field and scientific force transmission. The upright column 201 adopts a prestressed reinforced concrete hollow structure, is similar to a continuous batten plate lattice column, has large self rigidity, scientific force transmission of a section, definite stress, light structure and low engineering cost under the condition of the same weight and area.
In one embodiment of the application, when the dike body structure 20 is assembled, the appearance assembly is completed according to the sequence of the upright posts 201 and the arch rings 202, the overall verticality and ellipticity are checked to meet the requirements, and then the pull rod 203 is installed for checking to be qualified again; and (3) completing cast-in-place concrete of each joint on the general assembly platform, finally applying prestress to the upright column 201, closing the connecting hole of the pull rod 203, and completing the general assembly of the embankment body structure 20.
In this embodiment, the dike body structure 20 has a relatively simple composition, and includes the upright posts 201, the arch rings 202 and the pull rods 203, and each part has a single dimension specification, so that the prefabrication process and the mold table variety are greatly simplified.
Outfitting, namely pre-outfitting prefabricated components, wherein the pre-outfitting comprises the steps of arranging an open pore sealing plate and transporting and installing auxiliary facilities.
And (3) carrying out shipment, namely selecting a good seawater window, rolling on a semi-submersible barge or a semi-submersible ship by using an SPMT heavy module vehicle, carrying out cabin sealing operation, fixedly finishing, exiting the module vehicle, and towing and shipping to the site. And (5) submerging at the designated position, and moving the structural object 1 out of the semi-submerged barge to complete the transportation task.
And (3) installing the steel plates one by one from strong waves to the beginning according to the site construction sequence. The installation process controls the position, the verticality and the elevation.
In one embodiment of the application, the foundation structure 10 further comprises a base plate (not shown) connected to the bottom of the base 101, the base plate being mounted on the bed at the sea floor.
In this embodiment, whether the base structure 10 includes a bottom plate or not may depend on the specific geological structure, and the base structure 10 is used to bear the weight of itself and various external forces transmitted from the dike body structure 20. For the situation that the geological condition is better and the silt layer is shallow, the foundation structure 10 can be provided with a bottom plate, foundation riprap leveling treatment is simply carried out, and the bottom plate is located on a foundation bed, and is similar to a gravity wharf structure.
For the situations of poor geological conditions and thicker silt layer, such as large-scale deep sea pasture to be built, thick silt layer, large total digging and filling engineering quantity, long construction period and high foundation cost, and the soil throwing and filling are limited by resources and environment-friendly policies, the engineering requirements are hardly met, the foundation structure 10 is designed to be bottomless (i.e. no bottom plate is needed), the foundation is submerged in the field by adopting a method of vacuum negative pressure and high-pressure water pipes in walls to wash the foundation, and the foundation 101 is completely embedded into the soil or reaches the height required by the bearing capacity.
In the embodiment, a unique sinking mode is adopted, foundation grooves do not need to be excavated, foundation beds do not need to be thrown and filled, the tamping treatment is carried out, the working procedure is simplified, and the construction period is greatly shortened. The method has the advantages of no digging and throwing filling, saving a large amount of resources, reducing pollution to sea areas, and little or no mountain digging.
In one embodiment of the present application, referring to fig. 3 and 4, a side of the arch ring 202 facing the open sea and two sides adjacent to the side are provided with water permeable holes 221.
In this embodiment, the water permeable holes 221 are disposed on one side of the arch ring 202 facing the open sea and on two sides adjacent to the side, and the incident wave enters the wave dissipation cavity 222 through the water permeable holes 221, so that the incident wave and the reflected wave interfere with each other to reduce the water surface oscillation, the phase difference exists between the inner wave crest and the outer wave crest, the wave irregularly oscillates in the cavity, the effect of the wave pressure is reduced, and the energy dissipation effect is good; meanwhile, the height difference between the inner liquid level and the outer liquid level of the arch ring 202 is reduced, the pressure difference of the arch ring 202 is reduced, the impact of waves on the embankment body structure 20 is reduced, and the stress performance of the arch ring 202 is improved.
In one embodiment of the present application, referring to fig. 5, among the plurality of arches 202, two arches 202 near the base structure 10 are provided with water permeable holes 221 on the side facing the inland sea.
In this embodiment, only the side of the two arch rings 202 close to the foundation structure 10 facing the inland is provided with the water permeable holes 221, which are far away from the wave surface height, so that water can permeate water, so that the inner water and the outer water of the arch rings 202 can be exchanged, and seawater with large wave surface vibration can be prevented from entering the internal cavity enclosed by the structures 1, so that fluctuation is large, and poising is influenced. Meanwhile, seawater enters the inner cavity of the dike body structure 20, so that the self weight is increased, and the overall stability is improved.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411267417.4A CN119021141A (en) | 2024-09-10 | 2024-09-10 | A construction method for a water-permeable breakwater structure with self-contained wave-breaking function |
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| CN202411267417.4A CN119021141A (en) | 2024-09-10 | 2024-09-10 | A construction method for a water-permeable breakwater structure with self-contained wave-breaking function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119663784A (en) * | 2024-12-12 | 2025-03-21 | 中交第二航务工程局有限公司 | Bottom-sitting type wave-eliminating structure and installation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119663784A (en) * | 2024-12-12 | 2025-03-21 | 中交第二航务工程局有限公司 | Bottom-sitting type wave-eliminating structure and installation method |
| CN119663784B (en) * | 2024-12-12 | 2025-11-25 | 中交第二航务工程局有限公司 | Bottom-mounted wave-damping structure and installation method |
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