CN114892709B - Beach-type guiding platform and construction method thereof - Google Patents
Beach-type guiding platform and construction method thereof Download PDFInfo
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- CN114892709B CN114892709B CN202210611296.5A CN202210611296A CN114892709B CN 114892709 B CN114892709 B CN 114892709B CN 202210611296 A CN202210611296 A CN 202210611296A CN 114892709 B CN114892709 B CN 114892709B
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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
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
- E02D27/525—Submerged foundations, i.e. submerged in open water using elements penetrating the underwater ground
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/04—Guide devices; Guide frames
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
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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
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/08—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against transmission of vibrations or movements in the foundation soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
- E02D31/12—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure against upward hydraulic pressure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/66—Mould-pipes or other moulds
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
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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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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
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- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Paleontology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Foundations (AREA)
Abstract
The application relates to a beach type guiding platform and a construction method thereof, comprising the following steps: the beach structure comprises a plurality of steel pipe columns which are arranged in an array, wherein two adjacent steel pipe columns are connected into a whole through a connecting system, and the bottoms of the plurality of steel pipe columns are respectively provided with a buoyancy-adjustable anti-sinking box; the guide structure comprises a plurality of auxiliary pile sleeves coaxially positioned at the top of the steel pipe upright post, the auxiliary pile sleeves are connected into a whole through a guide frame, and the auxiliary pile sleeves are detachably connected with the steel pipe upright post; the leveling structure comprises a plurality of auxiliary piles which respectively penetrate into the auxiliary pile sleeves and the steel pipe upright posts and are inserted into soil, and hanging mechanisms for adjusting levelness of the guide structure are arranged at the tops of the auxiliary piles. The bottom of the plurality of steel pipe upright posts of the beach structure is respectively provided with the anti-sinking box with adjustable buoyancy, the anti-sinking box provides buoyancy and load for the beach structure, the soil body is prevented from flowing back, the counter force at the bottom of the guide platform is reduced, and the requirement of the guide platform on the bearing capacity of a soft foundation is reduced.
Description
Technical Field
The application relates to the technical field of offshore wind power foundation construction, in particular to a beach type guiding platform and a construction method thereof.
Background
The beach-type guide platform has the advantages of simple process, obvious economic benefit and the like, and is widely applied to the field of pile sinking construction of offshore wind power foundations.
The current beach structure all adopts the board-like anti-sinking plate structure of putting more energy into, has following problem when this kind of structure is applicable to weak stratum:
(1) under a weak stratum, uneven load of the guide platform causes that the flatness of the guide platform does not meet the requirement, and the guide platform is difficult to level;
(2) the soft stratum foundation has poor bearing capacity, so that the beach part has huge structural size, inconvenient construction and poor economy in order to meet the bearing capacity requirement;
(3) under the weak stratum, the anti-sinking plate is pressed into the soil body to a certain depth, the soil body on the anti-sinking plate flows back, and the difficulty of dismantling and shifting the beach guiding platform is increased.
Disclosure of Invention
The embodiment of the application provides a beach-type guiding platform and a construction method thereof, which are used for solving the problems of huge beach structure size and difficult leveling construction caused by low bearing capacity of weak stratum in the related technology.
A first aspect of an embodiment of the present application provides a beach type guiding platform, comprising:
the beach structure comprises a plurality of steel pipe columns which are arranged in an array, two adjacent steel pipe columns are connected into a whole through a connecting system, and the bottoms of the plurality of steel pipe columns are respectively provided with a buoyancy-adjustable anti-sinking box;
the guide structure comprises a plurality of auxiliary pile sleeves coaxially positioned at the top of the steel pipe upright post, the auxiliary pile sleeves are connected into a whole through a guide frame, and the auxiliary pile sleeves are detachably connected with the steel pipe upright post;
the leveling structure comprises a plurality of auxiliary piles which penetrate into the auxiliary pile sleeves and the steel pipe upright posts respectively and are inserted into soil, and hanging mechanisms for adjusting levelness of the guide structure are arranged at the tops of the auxiliary piles.
In some embodiments: the steel pipe stand is equipped with the multistage, and the multistage the steel pipe stand is by the supreme height that connects gradually down, prevent that the caisson is inside hollow enclosed construction, prevent that the caisson sets up on the steel pipe stand of hypomere, prevent still being equipped with on the caisson and adjust the water inlet and outlet hole of preventing the caisson buoyancy.
In some embodiments: the anti-sinking box comprises a peripheral plate which is arranged around the steel pipe upright post in a surrounding mode, an annular gap is formed between the peripheral plate and the steel pipe upright post, a top sealing plate and a bottom sealing plate which are connected with the steel pipe upright post in a sealing mode are respectively arranged at the top and the bottom of the peripheral plate, and a plurality of partition plates which are connected with the peripheral plate are arranged around the steel pipe upright post.
In some embodiments: the polylith the baffle is the rectangle steel sheet, and the polylith the baffle is radial circumference equipartition arrangement along the periphery of steel pipe stand, polylith the top and the bottom of baffle respectively with top seal board and bottom seal board fixed connection, polylith the through-hole has all been seted up on the baffle.
In some embodiments: a plurality of top plate stiffening ribs which are parallel to each other and are arranged at intervals are arranged at the tops of two adjacent partition boards in the plurality of partition boards, the tops of the plurality of top plate stiffening ribs are connected with the top sealing board, and the ends of the plurality of top plate stiffening ribs are connected with the partition boards;
the bottom of two adjacent baffles among the baffles is provided with a plurality of bottom plate stiffening ribs which are parallel to each other and are arranged at intervals, the bottoms of the plurality of bottom plate stiffening ribs are connected with the bottom sealing plate, and the end parts of the plurality of bottom plate stiffening ribs are connected with the baffles.
In some embodiments: the inner wall of the peripheral plate is provided with a plurality of vertical stiffening ribs which are vertically arranged, the side walls of the plurality of vertical stiffening ribs are fixedly connected with the inner wall of the peripheral plate, and the top and the bottom of the plurality of vertical stiffening ribs are respectively and fixedly connected with the top sealing plate and the bottom sealing plate;
the inner wall of the peripheral plate is provided with a plurality of horizontal stiffening ribs which are transversely arranged, the plurality of horizontal stiffening ribs are mutually parallel and are arranged at intervals along the height direction of the peripheral plate, the side wall of each horizontal stiffening rib is connected with the vertical stiffening rib and the peripheral plate, and the end parts of the horizontal stiffening ribs are connected with the partition plates.
In some embodiments: the top of the steel pipe stand column and the bottom of the auxiliary pile sleeve are respectively provided with a plurality of lug plates which are connected with each other, and the lug plates of the steel pipe stand column and the lug plates of the auxiliary pile sleeve are connected through pin shafts in an inserting mode.
In some embodiments: the hanging mechanism comprises a hanging rod or a hanging rope connected with the guide structure, and a hydraulic jack for pulling the hanging rod or the hanging rope to move up and down is arranged at the top of the auxiliary pile.
In some embodiments: the beach structure is water injection system still, water injection system is including setting up the water injection pipeline in preventing the caisson bottom, water injection pipeline's be equipped with many, many water injection pipeline's delivery port is towards preventing the bottom of caisson and around, many water injection pipeline's water inlet is connected with the water diversion joint, the water inlet that the water diversion connects is connected with water injection pipeline.
A second aspect of the embodiment of the present application provides a method for constructing a beach type guiding platform, where the method uses the beach type guiding platform according to any one of the above embodiments, and the method includes the following steps:
the floating crane conveys the prefabricated and formed beach structure and the guide structure to an operation site, the beach structure is lowered to the seabed after the floating crane is anchored and positioned, the guide structure is hoisted to the top of the beach structure, the plane position of the guide structure is accurately adjusted, and a pin shaft is driven between the guide structure and the beach structure for connection;
respectively injecting water into each anti-caisson to balance weight according to the gravity center positions of the beach structure and the guide structure, wherein the water injection weight in each anti-caisson is based on the same counter force at the bottom of each anti-caisson;
the floating crane lifting auxiliary pile is sequentially inserted into the auxiliary pile sleeve and the steel pipe upright post and is inserted into soil, whether the levelness of the guide structure meets the piling requirement is measured and judged, if the levelness of the guide structure does not meet the piling requirement, a pin shaft between the guide structure and the beach-setting structure is released, the guide structure is lifted to the auxiliary pile through the hanging mechanism, the levelness of the guide structure is adjusted to meet the piling requirement, and if the levelness of the guide structure meets the piling requirement, the next step is carried out;
the auxiliary pile sleeve and the auxiliary pile of the guide structure are tightly propped and limited by the limiting block, the main pile is lifted by the floating crane, and piling construction is carried out under the guiding and positioning actions of the guide structure;
after piling is completed, when the guide structure is hung on the auxiliary pile through the hanging mechanism, the guide structure is lowered to the beach structure, and a pin shaft is driven into the beach structure between the guide structure and the beach structure for connection;
the floating crane sequentially pulls out the auxiliary piles and hangs the auxiliary piles on the auxiliary pile sleeves of the guide structure;
the floating crane is hooked again, the guide platform is lifted integrally, water is injected to the bottom of the anti-caisson through a water injection pipeline and a water injection pipeline which are arranged on the beach structure for a weak stratum, the adsorption force of the anti-caisson and the foundation is eliminated, and then the floating crane is lifted and transferred to the next machine position.
The technical scheme provided by the application has the beneficial effects that:
the embodiment of the application provides a beach type guide platform and a construction method thereof, and the beach type guide platform is provided with a beach structure, wherein the beach structure comprises a plurality of steel pipe upright posts which are arranged in an array, two adjacent steel pipe upright posts are connected into a whole through a connecting system, and the bottoms of the plurality of steel pipe upright posts are respectively provided with a buoyancy-adjustable anti-caisson; the guide structure comprises a plurality of auxiliary pile sleeves coaxially positioned at the top of the steel pipe upright post, the auxiliary pile sleeves are connected into a whole through a guide frame, and the auxiliary pile sleeves are detachably connected with the steel pipe upright post; the leveling structure comprises a plurality of auxiliary piles which penetrate into the auxiliary pile sleeves and the steel pipe upright posts respectively and are inserted into soil, and hanging mechanisms for adjusting levelness of the guide structure are arranged at the tops of the auxiliary piles.
Therefore, the bottom of the plurality of steel pipe upright posts of the beach structure is respectively provided with the anti-sinking box with adjustable buoyancy, the anti-sinking box provides buoyancy and load for the beach structure, the soil body is prevented from flowing back, the counter force at the bottom of the guide platform is reduced, and the requirement of the guide platform on the bearing capacity of the soft foundation is reduced. According to the application, water is pumped and injected into the anti-caisson of the beach structure, so that the load of the guide platform is distributed, the load of the guide platform is ensured to be uniform, and the leveling construction difficulty of the guide platform is reduced. The application also arranges an auxiliary pile inserted into the soil in the auxiliary pile sleeve and the steel pipe upright post, and the top of the auxiliary pile is provided with a hanging mechanism for adjusting the levelness of the guide structure, and the hanging mechanism can further adjust the levelness of the guide structure, thereby reducing the construction difficulty.
In addition, this beach structure still is equipped with water injection system, and this water injection system is including setting up the water injection pipeline in preventing the caisson bottom, and this water injection pipeline be equipped with many, the delivery port of many water injection pipeline is towards preventing the bottom of caisson and all around, and the water inlet of many water injection pipeline is connected with the water diversion joint, is connected with the water injection pipeline at the water inlet of water diversion joint, and the water injection pipeline is used for connecting the water pump. The anti-caisson of the beach structure has a set height, can prevent soil from flowing back to the upper part of the anti-caisson, eliminates the adsorption force between the bottom of the anti-caisson and a soft foundation by configuring a water injection system, and reduces the construction difficulty of dismantling and shifting the guide platform. The water injection pipeline is arranged at the bottom of the anti-caisson, so that the adsorption force of the anti-caisson and a substrate can be reduced when the water is injected through the water injection pipeline, and the lifting and shifting construction difficulty of the guide platform is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a structure of an embodiment of the present application;
FIG. 2 is a left side view of the structure of an embodiment of the present application;
FIG. 3 is a schematic view of a beach structure according to an embodiment of the present application;
FIG. 4 is a schematic view of a guiding structure according to an embodiment of the present application
FIG. 5 is a cross-sectional view of an embodiment of the application from a first perspective of the caisson;
FIG. 6 is a cross-sectional view of a second view of an anti-caisson according to an embodiment of the present application;
fig. 7 shows a beach structure and water jet according to an embodiment of the present application.
Reference numerals:
1. a beach structure; 2. a guide structure; 3. auxiliary piles; 4. a hanging mechanism; 11. a steel pipe column; 12. an anti-caisson; 13. a connection system; 15. ear plates; 16. a water injection pipeline; 17. a water injection pipeline; 21. an auxiliary pile sleeve; 22. a guide frame; 121. a partition plate; 122. a top sealing plate; 123. a roof stiffener; 124. a bottom sealing plate; 125. a floor stiffener; 126. a peripheral plate; 127. vertical stiffening ribs; 128. horizontal stiffening ribs; 129. and water inlet and drain holes.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The embodiment of the application provides a beach type guiding platform and a construction method thereof, which can solve the problems of huge beach structure size and difficult leveling construction caused by low bearing capacity of weak stratum in the related technology.
Referring to fig. 1 to 4, a first aspect of an embodiment of the present application provides a beach type guiding platform, comprising:
the beach structure 1, the beach structure 1 includes a plurality of steel pipe columns 11 arranged in an array, the actual size and number of the steel pipe columns 11 are specifically set according to the actual number, and the number of the steel pipe columns 11 in the embodiment of the present application is preferably four. Two adjacent steel pipe columns 11 are connected into a whole through a connecting system 13, and the bottoms of the four steel pipe columns 11 are respectively provided with a buoyancy-adjustable anti-settling tank 12.
The guide structure 2 comprises four auxiliary pile sleeves 21 coaxially arranged at the top of the steel pipe upright post 11, wherein the diameters of the auxiliary pile sleeves 21 are the same as those of the steel pipe upright post 11, a plurality of auxiliary pile sleeves 21 are connected into a whole through a guide frame 22, the auxiliary pile sleeves 21 are detachably connected with the steel pipe upright post 11, and the guide frame 22 provides guidance and positioning for inserting and driving of a main pile.
The leveling structure comprises four auxiliary piles 3 which respectively penetrate into the auxiliary pile sleeve 21 and the steel pipe upright post 11 and are inserted into soil, the bottoms of the auxiliary piles 3 extend out of the steel pipe upright post 11 and are inserted into a river bed, the tops of the auxiliary piles 3 are higher than the tops of the auxiliary pile sleeve 21, and hanging mechanisms 4 for adjusting the levelness of the guide structure 2 are arranged at the tops of the four auxiliary piles 3.
According to the guiding platform provided by the embodiment of the application, the buoyancy-adjustable anti-caissons 12 are respectively arranged at the bottoms of the four steel pipe upright posts 11 of the beach structure 1, the buoyancy of the anti-caissons 12 is adjustable, the anti-caissons 12 provide buoyancy for the beach structure 1, the bottom counter force of the guiding platform is reduced, and the requirement of the guiding platform on the bearing capacity of a soft foundation is reduced.
According to the embodiment of the application, the loading of the guide platform is realized by pumping water and injecting water into the anti-caisson 12 of the beach structure 1, so that the load of the guide platform is ensured to be uniform, and the leveling construction difficulty of the guide platform is reduced. The application also arranges the auxiliary pile 3 inserted into the soil in the auxiliary pile sleeve 21 and the steel pipe upright post 11, and arranges the hanging mechanism 4 for adjusting the levelness of the guiding structure 2 at the top of the auxiliary pile 3, wherein the hanging mechanism 4 can further adjust the levelness of the guiding structure 2, thereby reducing the construction difficulty.
In some alternative embodiments: referring to fig. 3, 5 and 6, an embodiment of the present application provides a beach type guiding platform, where steel pipe columns 11 of the guiding platform are provided with multiple sections, and the multiple sections of steel pipe columns 11 are sequentially connected from bottom to top, and the connection height of the steel pipe columns 11 is determined to exceed a horizontal plane. The anti-settling tank 12 is of a closed structure with a hollow interior, the anti-settling tank 12 is arranged on the steel pipe upright post 11 at the lowest section, the anti-settling tank 12 is also provided with a plurality of water inlet and outlet holes 129 for adjusting the buoyancy of the anti-settling tank 12, the water inlet and outlet holes 129 can be provided with a plurality of water inlet and outlet holes 129 for realizing water inlet and water outlet, and the buoyancy of the anti-settling tank 12 is adjusted.
The anti-sinking box 12 specifically comprises a peripheral plate 126 which is arranged around the steel pipe upright post 11 in a surrounding manner, the peripheral plate 126 is of a round cylinder structure, and an annular gap is formed between the peripheral plate 126 and the steel pipe upright post 11. A top sealing plate 122 and a bottom sealing plate 124 which are in sealing connection with the steel pipe upright post 11 are respectively arranged at the top and the bottom of the peripheral plate 126, and a hollow cavity is formed by the peripheral plate 126, the steel pipe upright post 11, the top sealing plate 122 and the bottom sealing plate 124.
The baffle plates 121 connected with the peripheral plates 126 are arranged around the steel pipe upright posts 11, and the baffle plates 121 provide internal support for the peripheral plates 126, the steel pipe upright posts 11, the top sealing plate 122 and the bottom sealing plate 124 so as to prevent the caisson 12 from cracking and deforming after sinking to a set depth. The plurality of partition plates 121 are rectangular steel plates, and specific setting of the partition plates 121 is specifically set according to the required strength of the structure. The plurality of partition plates 121 are uniformly distributed along the periphery of the steel pipe upright post 11 in a radial circumference manner, the top and the bottom of the plurality of partition plates 121 are fixedly connected with the top sealing plate 122 and the bottom sealing plate 124 respectively, through holes are formed in the plurality of partition plates 121, and the through holes are used for communicating compartments formed by two adjacent partition plates 121.
The tops of two adjacent partition plates 121 in the plurality of partition plates 121 are provided with a plurality of mutually parallel top plate stiffening ribs 123 which are arranged at intervals, the tops of the plurality of top plate stiffening ribs 123 are connected with the top sealing plate 122, and the ends of the plurality of top plate stiffening ribs 123 are connected with the partition plates 121. The bottoms of two adjacent partition plates 121 in the plurality of partition plates 121 are provided with a plurality of bottom plate stiffening ribs 125 which are parallel to each other and are arranged at intervals, the bottoms of the plurality of bottom plate stiffening ribs 125 are connected with a bottom sealing plate 124, and the end parts of the plurality of bottom plate stiffening ribs 125 are connected with the partition plates 121. The top plate stiffener 123 and the bottom plate stiffener 125 are all in i-steel structures, and the top plate stiffener 123 and the bottom plate stiffener 125 are respectively used for enhancing the structural strength of the top sealing plate 122 and the bottom sealing plate 124.
A plurality of vertical stiffening ribs 127 which are vertically arranged are arranged on the inner wall of the peripheral plate 126, the side walls of the plurality of vertical stiffening ribs 127 are fixedly connected with the inner wall of the peripheral plate 126, and the top and the bottom of the plurality of vertical stiffening ribs 127 are respectively fixedly connected with the top sealing plate 122 and the bottom sealing plate 124. The inner wall of the peripheral plate 126 is provided with a plurality of horizontal stiffening ribs 128 which are transversely arranged, the plurality of horizontal stiffening ribs 128 are mutually parallel and are arranged at intervals along the height direction of the peripheral plate 126, the side wall of the horizontal stiffening rib 128 is connected with the vertical stiffening rib 127 and the peripheral plate 126, and the end part of the horizontal stiffening rib 128 is connected with the partition plate 121. The vertical stiffeners 127 and the horizontal stiffeners 128 serve to strengthen the structural strength of the peripheral plate 126.
In some alternative embodiments: referring to fig. 1 to 4, the embodiment of the present application provides a beach type guiding platform, wherein a plurality of mutually connected lugs 15 are respectively arranged at the top of a steel pipe column 11 and the bottom of an auxiliary pile sleeve 21 of the guiding platform, and the lugs 15 of the steel pipe column 11 are inserted with the lugs 15 of the auxiliary pile sleeve 21 through pin shafts. The hanging mechanism 4 comprises a hanging rod or a hanging rope connected with the guiding structure 2, a hydraulic jack for pulling the hanging rod or the hanging rope to move up and down is arranged at the top of the auxiliary pile 3, and the hydraulic jacks on the four auxiliary piles 3 respectively retract and release the length of the hanging rod or the hanging rope to adjust the levelness of the guiding structure 2. The pin shaft between the lug plate 15 of the steel pipe column 11 and the lug plate 15 of the auxiliary pile sleeve 21 needs to be taken out before the levelness of the guide structure 2 is adjusted by the hanging mechanism 4.
In some alternative embodiments: referring to fig. 7, an embodiment of the present application provides a beach-type guiding platform, where the beach-type guiding platform further includes a water injection system, where the water injection system includes a plurality of water injection pipes 17 disposed at the bottom of the anti-caisson 12, the water outlets of the plurality of water injection pipes 17 face the bottom and the periphery of the anti-caisson 12, water inlets of the plurality of water injection pipes 17 are connected with water diversion connectors, water inlets of the water diversion connectors are connected with water injection pipes 16, and the water injection pipes 16 are used for connecting water pumps. The anti-caisson 12 of the beach structure 1 can prevent soil from flowing back to the upper part of the anti-caisson 12, and by configuring a water injection system, the adsorption force between the bottom of the anti-caisson 12 and a soft foundation is eliminated, and the construction difficulty of dismantling and shifting a guide platform is reduced. The water injection pipeline 17 is arranged at the bottom of the anti-settling tank, so that the adsorption force of the anti-settling tank 12 and the substrate is reduced, and the lifting and shifting construction difficulty of the guide frame is reduced.
Referring to fig. 1 to 4, a second aspect of the embodiment of the present application provides a method for constructing a beach type guiding platform, the method using the beach type guiding platform according to any one of the above embodiments, the method comprising the steps of:
step 101, conveying the prefabricated and formed beach structure 1 and the guide structure 2 to an operation site by a floating crane, lowering the beach structure 1 to a seabed surface after anchoring and positioning by the floating crane, hoisting the guide structure 2 to the top of the beach structure 1, accurately adjusting the plane position of the guide structure 2, and driving a pin shaft between the guide structure 2 and the beach structure 1 for connection.
And 102, respectively filling water into the caissons 12 according to the gravity center positions of the beach structure 1 and the guide structure 2, wherein the water filling weight in the caissons 12 is based on the same counter force at the bottoms of the caissons 12.
Step 103, the floating crane hoisting auxiliary pile 3 is sequentially inserted into the auxiliary pile sleeve 21 and the steel pipe upright post 11 and is inserted into soil, whether the levelness of the guide structure 2 meets the piling requirement is measured and judged, if the levelness of the guide structure 2 does not meet the piling requirement, a pin shaft between the guide structure 2 and the beach structure 1 is released, the guide structure 2 is hoisted onto the auxiliary pile 3 through the hanging mechanism 4, the levelness of the guide platform 2 is adjusted until the piling requirement is met, and if the piling requirement is met, the step 104 is entered.
Step 104, the auxiliary pile sleeve 21 of the guide structure 2 and the auxiliary pile 3 are tightly propped and limited by a limiting block, the limiting block prevents the auxiliary pile sleeve 21 from sliding relative to the auxiliary pile 3, the main pile is hoisted by a floating crane, and piling construction is carried out under the guiding and positioning actions of the guide structure 2.
After the pile driving is completed, when the guide structure 2 is hung on the auxiliary pile 3 through the hanging mechanism 4, the guide structure 2 is lowered to the beach structure 1, and pin shaft connection is driven between the guide structure 2 and the beach structure 1 again.
Step 106, the floating crane sequentially pulls out the auxiliary piles 3, and hangs the auxiliary piles 3 on the auxiliary pile sleeves 21 of the guide structure 2.
And 107, re-hooking the floating crane, integrally hoisting the guiding platform, and for weak stratum, injecting water to the bottom of the anti-caisson 12 through a water injection pipeline 16 and a water injection pipeline 17 arranged on the beach structure 1, eliminating the adsorption force between the anti-caisson 12 and the foundation, hoisting and transferring to the next machine position.
Principle of operation
The embodiment of the application provides a beach type guiding platform and a construction method thereof, because the beach type guiding platform is provided with a beach structure 1, the beach structure 1 comprises a plurality of steel pipe upright posts 11 which are arranged in an array, two adjacent steel pipe upright posts 11 are connected into a whole through a connecting system 3, and the bottoms of the plurality of steel pipe upright posts 11 are respectively provided with a buoyancy-adjustable anti-caisson 12; the guide structure 2 comprises a plurality of auxiliary pile sleeves 21 coaxially positioned at the top of the steel pipe upright post 11, the auxiliary pile sleeves 21 are connected into a whole through a guide frame 22, and the auxiliary pile sleeves 21 are detachably connected with the steel pipe upright post 11; the leveling structure comprises a plurality of auxiliary piles 3 which respectively penetrate into the auxiliary pile sleeves 21 and the steel pipe upright columns 11 and are inserted into the soil, and hanging mechanisms 4 for adjusting the levelness of the guide structures 2 are arranged at the tops of the auxiliary piles 3.
Therefore, the bottom of the plurality of steel pipe upright posts 11 of the beach structure 1 is respectively provided with the anti-caisson 12 with adjustable buoyancy, and the anti-caisson 12 provides buoyancy for the beach structure 1, so that the counter force at the bottom of the guide platform is reduced, and the requirement of the guide platform on the bearing capacity of a soft foundation is reduced. According to the application, the load of the guide platform is realized by pumping water and injecting water into the anti-caisson 12 of the beach structure 1, so that the load of the guide platform is ensured to be uniform, and the leveling construction difficulty of the guide platform is reduced. The application also arranges the auxiliary pile 3 inserted into the soil in the auxiliary pile sleeve 21 and the steel pipe upright post 11, and arranges the hanging mechanism 4 for adjusting the levelness of the guiding structure 2 at the top of the auxiliary pile 3, wherein the hanging mechanism 4 can further adjust the levelness of the guiding structure 2, thereby reducing the construction difficulty.
In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that in the present application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A beach-style guiding platform comprising:
the beach structure (1) comprises a plurality of steel pipe columns (11) which are arranged in an array, wherein two adjacent steel pipe columns (11) are connected into a whole through a connecting system (13), and buoyancy-adjustable anti-caissons (12) are respectively arranged at the bottoms of the plurality of steel pipe columns (11);
the guide structure (2), the guide structure (2) comprises a plurality of auxiliary pile sleeves (21) coaxially arranged at the top of the steel pipe upright post (11), the auxiliary pile sleeves (21) are connected into a whole through a guide frame (22), and the auxiliary pile sleeves (21) are detachably connected with the steel pipe upright post (11);
the leveling structure comprises a plurality of auxiliary piles (3) which respectively penetrate into the auxiliary pile sleeves (21) and the steel pipe upright posts (11) and are inserted into soil, and hanging mechanisms (4) for adjusting the levelness of the guide structures (2) are arranged at the tops of the auxiliary piles (3);
the beach structure (1) further comprises a water injection system, the water injection system comprises water injection pipelines (17) arranged at the bottom of the anti-settling tank (12), a plurality of water injection pipelines (17) are arranged, the water outlets of the water injection pipelines (17) face the bottom and the periphery of the anti-settling tank (12), a plurality of water inlets of the water injection pipelines (17) are connected with water diversion connectors, and water inlets of the water diversion connectors are connected with water injection pipelines (16).
2. A beach type guiding platform as claimed in claim 1, wherein:
the steel pipe stand column (11) is provided with a plurality of sections, the steel pipe stand column (11) is sequentially connected with the plurality of sections from bottom to top, the anti-settling tank (12) is of a closed structure with hollow inside, the anti-settling tank (12) is arranged on the steel pipe stand column (11) at the lowest section, and the anti-settling tank (12) is also provided with a water inlet and drainage hole (129) for adjusting the buoyancy of the anti-settling tank (12).
3. A beach type guiding platform as claimed in claim 1 or 2, characterized in that:
the anti-sinking box (12) comprises a peripheral plate (126) which is arranged around the steel pipe upright post (11), an annular gap is formed between the peripheral plate (126) and the steel pipe upright post (11), top sealing plates (122) and bottom sealing plates (124) which are connected with the steel pipe upright post (11) in a sealing mode are respectively arranged at the top and the bottom of the peripheral plate (126), and a plurality of partition plates (121) which are connected with the peripheral plate (126) are arranged around the steel pipe upright post (11).
4. A beach type guiding platform as claimed in claim 3, wherein:
the baffle (121) of polylith all be rectangular steel sheet, polylith baffle (121) are radial circumference equipartition along the periphery of steel pipe stand (11) and are arranged, polylith top and bottom of baffle (121) respectively with top seal board (122) and bottom seal board (124) fixed connection, polylith all offer the through-hole on baffle (121).
5. A beach type guiding platform as claimed in claim 3, wherein:
the top of two adjacent partition boards (121) in the plurality of partition boards (121) is provided with a plurality of mutually parallel top board stiffening ribs (123) which are arranged at intervals, the top of each top board stiffening rib (123) is connected with a top sealing board (122), and the end parts of each top board stiffening rib (123) are connected with the partition boards (121);
the bottoms of two adjacent separators (121) in the plurality of separators (121) are provided with a plurality of bottom plate stiffening ribs (125) which are parallel to each other and are arranged at intervals, the bottoms of the plurality of bottom plate stiffening ribs (125) are connected with a bottom sealing plate (124), and the end parts of the plurality of bottom plate stiffening ribs (125) are connected with the separators (121).
6. A beach type guiding platform as claimed in claim 3, wherein:
a plurality of vertical stiffening ribs (127) which are vertically arranged are arranged on the inner wall of the peripheral plate (126), the side walls of the plurality of vertical stiffening ribs (127) are fixedly connected with the inner wall of the peripheral plate (126), and the top and the bottom of the plurality of vertical stiffening ribs (127) are respectively fixedly connected with the top sealing plate (122) and the bottom sealing plate (124);
the inner wall of peripheral board (126) is equipped with many horizontal stiffening ribs (128) that are horizontal setting, and many horizontal stiffening ribs (128) are parallel to each other and the interval sets up along the direction of height of peripheral board (126), and the lateral wall of horizontal stiffening rib (128) is connected with vertical stiffening rib (127) and peripheral board (126), and the tip and the baffle (121) of horizontal stiffening rib (128) are connected.
7. A beach type guiding platform as claimed in claim 1, wherein:
the top of the steel pipe stand column (11) and the bottom of the auxiliary pile sleeve (21) are respectively provided with a plurality of mutually connected lug plates (15), and the lug plates (15) of the steel pipe stand column (11) are connected with the lug plates (15) of the auxiliary pile sleeve (21) in an inserting mode through pin shafts.
8. A beach type guiding platform as claimed in claim 1, wherein:
the hanging mechanism (4) comprises a hanging rod or a hanging rope connected with the guide structure (2), and a hydraulic jack for pulling the hanging rod or the hanging rope to move up and down is arranged at the top of the auxiliary pile (3).
9. A method of constructing a beach guiding platform, characterized in that the method uses a beach guiding platform as claimed in any one of claims 1 to 8, the method comprising the steps of:
the floating crane conveys the prefabricated and formed beach structure (1) and the guide structure (2) to an operation site, the beach structure (1) is lowered to the seabed after the floating crane is anchored and positioned, the guide structure (2) is hoisted to the top of the beach structure (1), the plane position of the guide structure (2) is accurately adjusted, and a pin shaft is driven between the guide structure (2) and the beach structure (1) for connection;
according to the gravity center positions of the beach structure (1) and the guide structure (2), respectively filling water into the anti-caissons (12) to balance weight, wherein the water filling weight in each anti-caisson (12) is based on the same counter force at the bottom of each anti-caisson (12);
the floating crane hoisting auxiliary pile (3) is sequentially inserted into the auxiliary pile sleeve (21) and the steel pipe upright post (11) and is inserted into soil, whether the levelness of the guide structure (2) meets the piling requirement is measured and judged, if the levelness of the guide structure does not meet the piling requirement, a pin shaft between the guide structure (2) and the beach structure (1) is released, the guide structure (2) is hoisted onto the auxiliary pile (3) through the hanging mechanism (4), the levelness of the guide structure is adjusted to meet the piling requirement, and if the levelness of the guide structure meets the piling requirement, the next step is carried out;
the auxiliary pile sleeve (21) of the guide structure (2) and the auxiliary pile (3) are tightly propped and limited by a limiting block, a main pile is lifted by a floating crane, and piling construction is carried out under the guiding and positioning actions of the guide structure (2);
after piling is finished, when the guide structure (2) is hung on the auxiliary pile (3) through the hanging mechanism (4), the guide structure (2) is lowered to the beach structure (1), and pin shafts are driven into the space between the guide structure (2) and the beach structure (1) again for connection;
the floating crane sequentially pulls out the auxiliary piles (3) and hangs the auxiliary piles (3) on the auxiliary pile sleeves (21) of the guide structure (2);
the floating crane is hooked again, the whole hoisting guide platform is used for hoisting a weak stratum, water is injected to the bottom of the anti-settling tank (12) through a water injection pipeline (16) and a water injection pipeline (17) which are arranged on the beach structure (1), the adsorption force of the anti-settling tank (12) and the foundation is eliminated, and then the hoisting is carried out and the next machine position is transferred.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210611296.5A CN114892709B (en) | 2022-05-31 | 2022-05-31 | Beach-type guiding platform and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210611296.5A CN114892709B (en) | 2022-05-31 | 2022-05-31 | Beach-type guiding platform and construction method thereof |
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| Publication Number | Publication Date |
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| CN114892709A CN114892709A (en) | 2022-08-12 |
| CN114892709B true CN114892709B (en) | 2023-08-29 |
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| JPH04169621A (en) * | 1990-10-31 | 1992-06-17 | Sumitomo Constr Co Ltd | Process for base construction in water |
| CN204823671U (en) * | 2015-06-30 | 2015-12-02 | 中国海洋大学 | Node grout clamp underwater installation complementary unit |
| CN112195962A (en) * | 2020-09-27 | 2021-01-08 | 中国电建集团华东勘测设计研究院有限公司 | Offshore electric platform pile-sleeve foundation structure with anti-sinking box structure |
| CN112942343A (en) * | 2021-03-18 | 2021-06-11 | 中铁大桥局集团有限公司 | Negative pressure bucket type guide frame platform for pile sinking construction and construction method thereof |
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2022
- 2022-05-31 CN CN202210611296.5A patent/CN114892709B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04169621A (en) * | 1990-10-31 | 1992-06-17 | Sumitomo Constr Co Ltd | Process for base construction in water |
| CN204823671U (en) * | 2015-06-30 | 2015-12-02 | 中国海洋大学 | Node grout clamp underwater installation complementary unit |
| CN112195962A (en) * | 2020-09-27 | 2021-01-08 | 中国电建集团华东勘测设计研究院有限公司 | Offshore electric platform pile-sleeve foundation structure with anti-sinking box structure |
| CN112942343A (en) * | 2021-03-18 | 2021-06-11 | 中铁大桥局集团有限公司 | Negative pressure bucket type guide frame platform for pile sinking construction and construction method thereof |
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| CN114892709A (en) | 2022-08-12 |
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