CN116988524B - Reinforcing device for pile foundation of tidal flat photovoltaic power station and application method of reinforcing device - Google Patents

Reinforcing device for pile foundation of tidal flat photovoltaic power station and application method of reinforcing device Download PDF

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Publication number
CN116988524B
CN116988524B CN202310996435.5A CN202310996435A CN116988524B CN 116988524 B CN116988524 B CN 116988524B CN 202310996435 A CN202310996435 A CN 202310996435A CN 116988524 B CN116988524 B CN 116988524B
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pile foundation
sliding
annular
reinforcing cylinder
reinforcing
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CN202310996435.5A
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CN116988524A (en
Inventor
张喜
蒋旭辉
王松
杨杰虎
肖汉清
王瑞琼
李松
何家骏
薛潇
邹鹏
周尧
朱元浩
周梦雪
苏海峰
黄昱
李勇志
谢开骥
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Chongqing Institute of Green and Intelligent Technology of CAS
PowerChina Chongqing Engineering Corp Ltd
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Chongqing Institute of Green and Intelligent Technology of CAS
PowerChina Chongqing Engineering Corp Ltd
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D37/00Repair of damaged foundations or foundation structures
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/10Deep foundations
    • E02D27/12Pile foundations
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/32Foundations for special purposes
    • E02D27/36Foundations formed in moors or bogs

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

The invention relates to the technical field of photovoltaic equipment, in particular to a reinforcing device for a pile foundation of a tidal flat photovoltaic power station and a use method thereof. In this scheme, when the pile foundation receives vertical load, the soil layer that is tamped between reinforcement section of thick bamboo and the pile foundation blocks annular slab downwardly moving, plays the vertical bearing capacity effect of reinforcing pile foundation, effectively prevents that the pile foundation subsides.

Description

Reinforcing device for pile foundation of tidal flat photovoltaic power station and application method of reinforcing device
Technical Field
The invention relates to the technical field of photovoltaic equipment, in particular to a reinforcing device for pile foundations of a tidal flat photovoltaic power station and a use method of the reinforcing device.
Background
The coastal beach solar photovoltaic power generation technology is a new technology, a new method and a new construction technology for researching the solar photovoltaic power generation in beach construction. Has very important significance for developing and utilizing coastal beach resources, saving land, developing green environmental protection, saving energy and reducing emission and developing national economy. The beach is an important backup land resource in China, is mainly distributed in numerous coastal provinces in China, has the characteristics of large area, concentrated distribution, good regional conditions and the like, is sufficient in beach sunlight irradiation, is suitable for building a photovoltaic power station, has the advantages of energy conservation, environmental friendliness, simple equipment, low cost and the like, is rapidly popularized in recent years, and has a plurality of photovoltaic power generation projects distributed in soft soil areas such as beach.
The difficulty of the current beach construction photovoltaic power station lies in the construction of photovoltaic equipment pile foundation on the beach or soft soil foundation, and this brings the challenge for the construction of beach photovoltaic power station, because the bearing capacity of beach weak soil is lower, causes the stability of pile foundation relatively poor, and danger such as pile foundation subsidence, slope take place easily, has certain potential safety hazard, consequently, designs the reinforcing apparatus of a beach photovoltaic power station pile foundation and is the research focus of current beach photovoltaic power station project.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the utility model provides a reinforcing apparatus of beach photovoltaic power plant pile foundation and application method thereof to solve the photovoltaic pile foundation that builds in beach or weak soil and easily subside, the poor problem of stability under the effect of vertical load.
In one aspect, the invention provides a pile foundation reinforcing device of a tidal flat photovoltaic power station, which comprises a reinforcing cylinder and an annular plate, wherein the reinforcing cylinder and the annular plate are coaxially arranged with the pile foundation and are sleeved outside the pile foundation, the reinforcing cylinder is vertically arranged, the upper end and the lower end of the reinforcing cylinder are open, a gap is reserved between the reinforcing cylinder and the outer wall of the pile foundation, the annular plate is arranged between the reinforcing cylinder and the pile foundation, the outer wall of the annular plate is in sliding connection with the inner wall of the reinforcing cylinder, and the inner wall of the annular plate is in sliding connection with the outer wall of the pile foundation.
In the foundation scheme, the reinforcing cylinder is sleeved outside the pile foundation and is vibrated into a dense soil layer of the beach, the upper end of the reinforcing cylinder is located above the beach soil surface, the annular plate is sleeved outside the pile foundation and is located between the reinforcing cylinder and the pile foundation, then the annular plate is hammered downwards to enable the annular plate to sink to squeeze and tamp a soil layer between the inner wall of the reinforcing cylinder and the outer wall of the pile foundation, the outer wall and the inner wall of the annular plate are welded with the reinforcing cylinder and the pile foundation or are fixedly connected in other modes respectively, when the pile foundation is subjected to vertical load, the tamped soil layer between the reinforcing cylinder and the pile foundation blocks the annular plate to move downwards, so that the effect of reinforcing the vertical bearing capacity of the pile foundation is achieved, and the settlement of the pile foundation is effectively prevented.
Further, a plurality of through holes vertically penetrating through the annular plate are uniformly distributed on the annular plate. Through-hole can be when annular plate receives the soil layer between downward hammering downward movement extrusion reinforcement section of thick bamboo and the pile foundation, be favorable to the water that contains in the soil layer in this space to be penetrated by the through-hole in order to release the water pressure in the soil layer between reinforcement section of thick bamboo and the pile foundation for annular plate is being under the ability of hammering and moving down fast in order to tamp annular plate below soil layer.
Further, the outer wall of the reinforcement cylinder is uniformly distributed with wing plates along the circumference, the wing plates are vertically arranged, and the wing plates are fixedly connected with the outer wall of the reinforcement cylinder.
Further, run through the pterygoid lamina setting slide hole along pterygoid lamina thickness direction on the pterygoid lamina, follow the vertical slide that sets up of pterygoid lamina central line in the pterygoid lamina, the slide with slide hole intercommunication, the slide upwards runs through the pterygoid lamina, sliding connection traveller in the slide, upwards stretch out the upper end of traveller the slide, be located in the slide hole the traveller epirelief is equipped with the frustum with the coaxial setting of traveller, be in along the thickness direction of pterygoid lamina in the slide hole the both sides of traveller be provided with respectively with slide hole sliding connection's first slider and second slider, first slider be close to be provided with on the terminal surface of frustum with frustum complex first taper hole, the second slider be close to on the terminal surface of frustum all be provided with the extension spring between first slider with second slider fixed connection, the other end and the second slider fixed connection of extension spring first slider with the second slider is close to down the vertical link rod is close to with the vertical link rod is gone up in the vertical link rod is followed to the vertical link rod is inserted down with the vertical link rod is connected with the vertical link rod is gone up down.
Further, the annular cavity is arranged in the wing plate coaxially with the sliding column, the annular pushing plate and the annular air bag are fixedly connected to the outer wall of the sliding column in the annular cavity, the annular pushing plate is positioned below the annular air bag, the frustum is close to the first sliding block and the second sliding block, the first air bag and the second air bag are respectively fixedly connected to the conical surface of the second sliding block, and the first air bag and the second air bag are communicated with the annular air bag through the air passage arranged in the sliding column.
Further, the strut is connected with the cross bar through a pull rope.
Further, the lower end of the sliding column is provided with a square column section, and the lower end of the sliding rail is provided with a square duct matched with the square column section.
On the other hand, the invention also provides a using method of the pile foundation reinforcing device of the tidal flat photovoltaic power station, which adopts the reinforcing device and comprises the following steps:
S1, installing a reinforcing cylinder, coaxially sleeving the reinforcing cylinder and a pile foundation outside the pile foundation, and downwards driving the reinforcing cylinder and a wing plate on the reinforcing cylinder into a beach soil layer through hammering equipment;
S2, installing an annular plate, placing the annular plate into a gap between the reinforcing cylinder and the pile foundation, hammering the annular plate to enable the annular plate to move downwards, and compacting and solidifying a soil layer of the gap between the reinforcing cylinder and the pile foundation;
s3, fixing the annular plate, and fixedly connecting the annular plate with the reinforcing cylinder and the pile foundation in a welding or bolting mode;
S4, installing a linkage rod, enabling the vertical rod of the linkage rod to be vertically inserted into a compact soil layer between the reinforcing barrel and the pile foundation through hammering and the like through a through hole, enabling the cross rod to be located above the corresponding sliding column, connecting the sliding column with the cross rod through a pull rope, enabling the upper end of the pull rope to be hooked or bound with the cross rod, and fixedly connecting the lower end of the pull rope with the upper end of the sliding column.
The principle and at least the beneficial effects of the invention are as follows:
1, set up and consolidate a section of thick bamboo and cooperate slidable annular slab, soil layer structure after annular slab extrusion is closely knit, with annular slab with consolidate fixed back closely knit soil layer of a section of thick bamboo can prevent effectively that annular slab from moving downwards, and then play the effect that consolidate pile foundation improvement pile foundation stability prevents the pile foundation subsidence.
2, The resistance of pile foundation lateral movement under horizontal load is effectively increased in the setting of pterygoid lamina, further improves the stability of pile foundation.
3, When pile foundation subsides at vertical load, vertical pole is because do not receive vertical load, and by the soil horizon of compaction obstructs vertical pole downwardly moving, and under the restriction effect of horizontal pole to the traveller, the traveller also can not downwardly moving, when pile foundation and the relative traveller downwardly moving of reinforcement section of thick bamboo are followed to the pterygoid lamina, outside the pterygoid lamina is stretched out to first slider and second slider under the conical surface of frustum and the effect of first taper hole and second taper hole, increases the frictional force and the resistance between pterygoid lamina and the mud flat soil layer, improves pile foundation stability.
4, When horizontal loads such as tide, wind power and the like circularly act on the pile foundation and photovoltaic equipment on the pile foundation, gaps with different widths can appear between soil layers at two sides of the wing plate and end faces of the wing plate, when the wing plate is downwards settled along with the pile foundation, so that the annular pushing plate extrudes the annular air bag and the first air bag and the second air bag expand, because the widths of the gaps at two sides of the wing plate are different, the first sliding block and the second sliding block stretch out of the wing plate under the expansion pushing of the first air bag and the second air bag to be different in length, and finally the extrusion force of the first sliding block and the second sliding block at two sides of the wing plate to the horizontal direction of the soil layer is the same, the phenomenon that the wing plate is deflected to a certain side due to uneven stress at two sides of the wing plate can not appear, so that the first sliding block and the second sliding block stretching out of the wing plate adaptively fill the gaps at two sides of the wing plate, the expansion rate of the gaps at two sides of the wing plate under the circulating load in the horizontal direction is reduced, the stability of the pile foundation is further improved, and the service life of the pile foundation is prolonged.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a top view of the present invention with the linkage bar removed.
Fig. 3 is a schematic diagram of a wing plate structure before pile foundation settlement occurs.
Fig. 4 is a cross-sectional view A-A of fig. 3.
FIG. 5 is a schematic diagram of the wing plate structure after the pile foundation subsides.
The meaning of the reference numerals in the drawings are:
The reinforced cylinder 10, the wing plate 11, the sliding hole 111, the first sliding block 112, the first taper hole 1121, the second sliding block 113, the second taper hole 1131, the sliding way 114, the sliding column 115, the taper platform 1151, the annular push plate 1152, the annular air bag 1153, the first air bag 1154, the second air bag 1155, the air channel 1156, the square column section 1157, the annular cavity 116, the tension spring 117, the annular plate 20, the through hole 201, the linkage rod 30, the vertical rod 301, the cross rod 302, the pull rope 40, the pile foundation 50 and the soil layer 60.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the 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.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
In the reinforcing device of the pile foundation of the tidal flat photovoltaic power station and the use method thereof of the embodiment, as shown in fig. 1-5, the reinforcing device of the pile foundation of the tidal flat photovoltaic power station comprises a reinforcing cylinder 10 and an annular plate 20 which are coaxially arranged with the pile foundation 50 and are sleeved outside the pile foundation 50, the reinforcing cylinder 10 is vertically arranged, the upper end and the lower end of the reinforcing cylinder 10 are opened, a gap is reserved between the reinforcing cylinder 10 and the outer wall of the pile foundation 50, the annular plate 20 is arranged between the reinforcing cylinder 10 and the pile foundation 50, the outer wall of the annular plate 20 is in sliding connection with the inner wall of the reinforcing cylinder 10, the inner wall of the annular plate 20 is in sliding connection with the outer wall of the pile foundation 50, and in the embodiment, 8 through holes 201 vertically penetrating the annular plate 20 are uniformly distributed on the annular plate 20 along the circumferential direction of the annular plate 20.
As shown in fig. 1 and fig. 2, 8 wing plates 11 corresponding to the through holes 201 are uniformly distributed on the outer wall of the reinforcement cylinder 10 along the circumference, the wing plates 11 are vertically arranged along the radial direction of the reinforcement cylinder 10, the wing plates 11 are fixedly connected with the outer wall of the reinforcement cylinder 10, a sliding hole 111 is formed in the wing plates 11 in a penetrating mode along the thickness direction of the wing plates 11, the sliding holes 111 are square holes, a sliding rail 114 is vertically arranged in the wing plates 11 along the center line of the wing plates 11, the sliding rail 114 is communicated with the sliding holes 111, the sliding rail 114 upwards penetrates through the wing plates 11, the lower end of the sliding rail 114 is communicated with the sliding holes 111 and then continues to extend downwards into the wing plate 11 body, a sliding column 115 is connected in the sliding rail 114 in a sliding mode, the upper end of the sliding column 115 upwards extends out of the sliding rail 114, the upper section of the sliding column 114 is a circular channel, the upper section of the sliding column 115 is a cylinder in sliding fit with the upper section of the sliding column 114, in order to prevent the sliding column 115 from rotating around the axis of the sliding column 115, the lower end of the sliding column 115 is a square column section 1157, and the lower end of the sliding column 115 is provided with a duct 1157.
As shown in fig. 3-5, the sliding post 115 located in the sliding hole 111 is provided with a taper platform 1151 disposed coaxially with the sliding post 115, two sides of the sliding post 115 along the thickness direction of the wing plate 11 are respectively provided with a first slider 112 and a second slider 113 slidably matched with the inner wall of the sliding hole 111, the end surface of the first slider 112 near the taper platform 1151 is provided with a first taper hole 1121 matched with the taper platform 1151, the end surface of the second slider 113 near the taper platform 1151 is provided with a second taper hole 1131 matched with the taper platform 1151, the first taper hole 1121 and the second taper hole 1131 are incomplete holes, at least 2 tension springs 117 are disposed between the first slider 112 and the second slider 113, in this embodiment, in other possible embodiments, other numbers of tension springs 117 can be disposed according to the need, as shown in fig. 4, the 2 tension springs 117 are disposed symmetrically on two sides of the taper platform 1151, the first tension springs 117 are connected to the second slider 113 along the width direction of the wing plate 11, and the second tension springs 117 are connected to the other end of the first slider 113.
The wing plate 11 is internally and coaxially provided with the slide column 115 with an annular cavity 116, an annular push plate 1152 and an annular air bag 1153 are fixedly connected to the outer wall of the slide column 115 in the annular cavity 116, the annular push plate 1152 is arranged below the annular air bag 1153, the annular push plate 1152 is coaxially arranged with the slide column 115, the annular air bag 1153 is annularly sleeved on the outer wall of the slide column 115 and fixedly connected with the slide column 115, a frustum 1151 is close to conical surfaces of the first slider 112 and the second slider 113 and is fixedly connected with a first air bag 1154 and a second air bag 1155 respectively, an air channel 1156 is arranged in the slide column 115, the upper end of the air channel 1156 is communicated with the inner cavity of the annular air bag 1153 in a sealing mode, the lower end of the air channel 1156 is respectively communicated with the inner cavity of the first air bag 1154 and the inner cavity of the second air bag 1155, the annular air bag 1153 is filled with air, the annular air bag 1153 is in an expanded state, and the first slider 112 and the second slider 113 are tightly adhered to the conical surfaces of the tension spring 117 respectively, and the first air bag 115 and the second air bag 1154 cannot be compressed by the first air bag 1154 and the second air bag 1155.
As shown in fig. 1, a linkage rod 30 is disposed in the reinforcement cylinder 10, the linkage rod 30 includes a vertical rod 301 and a cross rod 302 integrally formed with the vertical rod 301 at the upper end of the vertical rod 301, the lower end of the vertical rod 301 is inserted into a soil layer 60 compacted between the reinforcement cylinder 10 and the pile foundation 50 through the through hole 201, the outer wall of the vertical rod 301 is disposed in a gap with the inner wall of the through hole 201, the cross rod 302 is connected with the upper end of the strut 115 through a pull rope 40, the lower end of the pull rope 40 is fixedly connected with the upper end of the strut 115, and the upper end of the pull rope 40 is hooked with the cross rod 302 or wound and bound on the cross rod 302.
The embodiment also provides a use method of the pile foundation reinforcing device of the tidal flat photovoltaic power station, which adopts the reinforcing device and comprises the following steps:
s1, installing a reinforcing cylinder 10, coaxially sleeving the reinforcing cylinder 10 and a pile foundation 50 outside the pile foundation 50, and driving the reinforcing cylinder 10 and a wing plate 11 on the reinforcing cylinder 10 into a soil layer 60 of a beach together by hammering equipment;
s2, installing the annular plate 20, putting the annular plate 20 into a gap between the reinforcing cylinder 10 and the pile foundation 50, hammering the annular plate 20 to enable the annular plate 20 to move downwards, and compacting and solidifying a soil layer 60 of the gap between the reinforcing cylinder 10 and the pile foundation 50;
s3, fixing the annular plate 20, and fixedly connecting the annular plate 20 with the reinforcement cylinder 10 and the pile foundation 50 in a welding or bolting mode;
S4, installing the linkage rod 30, enabling the vertical rod 301 of the linkage rod 30 to be vertically inserted into the compact soil layer 60 between the reinforced cylinder 10 and the pile foundation 50 through hammering and the like from the through hole 201, enabling the cross rod 302 to be located above the corresponding sliding column 115, connecting the sliding column 115 with the cross rod 302 through the pull rope 40, enabling the upper end of the pull rope 40 to be hooked or bound with the cross rod 302, and enabling the lower end of the pull rope 40 to be fixedly connected with the upper end of the sliding column 115.
The principle and the beneficial effects of the invention are as follows:
1, set up and consolidate a section of thick bamboo 10 and cooperate slidable annular slab 20, soil layer 60 structure after annular slab 20 extrusion is closely knit, with annular slab 20 and consolidate the fixed back closely knit soil layer 60 of a section of thick bamboo 10 and can prevent effectively that annular slab 20 from moving downwards, and then play the effect that consolidate pile foundation 50 improves pile foundation 50 stability and prevent pile foundation 50 subsides.
2, The arrangement of the wing plates 11 effectively increases the resistance of the pile foundation 50 to lateral movement under horizontal load, and further improves the stability of the pile foundation 50.
3, When pile foundation 50 is sunk under vertical load, vertical rod 301 is not under vertical load, compacted soil layer 60 blocks vertical rod 301 from moving downwards, and under the restriction effect of horizontal rod 302 to strut 115, strut 115 also can not move downwards, when pile foundation 50 and reinforcement cylinder 10 move downwards relative to strut 115, under the effect of conical surface of frustum 1151 and first cone hole 1121 and second cone hole 1131, first slider 112 and second slider 113 extend out of wing plate 11, friction force and resistance between wing plate 11 and beach soil layer are increased, and pile foundation 50 stability is improved.
4, When horizontal loads such as tide and wind force are circularly acted on the pile foundation 50 and photovoltaic equipment on the pile foundation 50, gaps with different widths can be formed between the soil layers 60 at the two sides of the wing plate 11 and the end surfaces of the wing plate 11, as shown in fig. 5, when the wing plate 11 is downwards settled along with the pile foundation 50, so that the annular push plate 1152 presses the annular air bags 1153 and the first air bags 1154 and the second air bags 1155 are expanded, the lengths of the first sliding blocks 112 and the second sliding blocks 113 extending out of the wing plate 11 are different under the expansion of the first air bags 1154 and the second air bags 1155 under the pushing of the first sliding blocks 112 and the second sliding blocks 113, and finally the extrusion force of the first sliding blocks 112 and the second sliding blocks 113 at the two sides of the wing plate 11 to the horizontal direction of the soil layer 60 is the same, and the phenomenon that the wing plate 11 is deflected to a certain side due to the uneven stress at the two sides of the wing plate 11 is avoided, so that the first sliding blocks 112 and the second sliding blocks 113 extending out of the wing plate 11 adaptively fill the gaps at the two sides of the wing plate 11, and the expansion rate of the wing plate 11 at the two sides of the horizontal direction under the circulating load is reduced.
The foregoing is merely exemplary of the present application, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the utility of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (5)

1. Reinforcing apparatus of beach photovoltaic power plant pile foundation, its characterized in that: the pile foundation structure comprises a reinforcing cylinder and annular plates, wherein the reinforcing cylinder and the annular plates are coaxially arranged outside the pile foundation in a sleeved mode, the reinforcing cylinder is vertically arranged, openings are formed in the upper end and the lower end of the reinforcing cylinder, a gap is reserved between the reinforcing cylinder and the outer wall of the pile foundation, the annular plates are arranged between the reinforcing cylinder and the pile foundation, the outer wall of each annular plate is in sliding connection with the inner wall of the reinforcing cylinder, the inner wall of each annular plate is in sliding connection with the outer wall of the pile foundation, a plurality of through holes vertically penetrating the annular plates are uniformly distributed on each annular plate, wing plates are uniformly distributed on the outer wall of the reinforcing cylinder along the periphery, and the wing plates are vertically arranged and fixedly connected with the outer wall of the reinforcing cylinder;
The wing plate is provided with a sliding hole along the thickness direction of the wing plate, a slide way is vertically arranged in the wing plate along the central line of the wing plate, the slide way is communicated with the sliding hole, the slide way upwards penetrates through the wing plate, a sliding column is connected in a sliding way, the upper end of the sliding column upwards extends out of the slide way, a frustum which is coaxially arranged with the sliding column is convexly arranged on the sliding column in the sliding hole, a first sliding block and a second sliding block which are in sliding connection with the sliding hole are respectively arranged on two sides of the sliding column along the thickness direction of the wing plate in the sliding hole, a first taper hole which is matched with the frustum is arranged on the end face of the first sliding block, which is close to the frustum, the utility model discloses a concrete pile foundation ramming device, including the taper platform, the second slider is close to on the terminal surface of taper platform all be provided with taper platform complex second taper hole, first slider with be provided with the extension spring between the second slider, the one end and the first slider fixed connection of extension spring, the other end and the second slider fixed connection of extension spring under the elasticity of extension spring first slider with the taper platform is pressed close to the second slider, set up the gangbar in the reinforcement section of thick bamboo, the gangbar include vertical pole with set up in vertical pole's upper end and vertical pole integrated into one piece's horizontal pole, the lower extreme of vertical pole is passed through in the through-hole inserts reinforcement section of thick bamboo and pile foundation is in the soil layer that is rammed, the horizontal pole with the upper end of traveller can be dismantled and be connected.
2. The reinforcing apparatus of a beach photovoltaic power station pile foundation of claim 1, wherein: the annular pushing plate is positioned below the annular air bag, the frustum is close to the first sliding block and the second sliding block, the first air bag and the second air bag are respectively and fixedly connected on the conical surface of the second sliding block, and the first air bag and the second air bag are communicated with the annular air bag through an air passage arranged in the sliding column.
3. The reinforcing apparatus of a beach photovoltaic power station pile foundation of claim 2, wherein: the sliding column is connected with the cross rod through a pull rope.
4. A reinforcing apparatus for a beach photovoltaic power station pile foundation as set forth in claim 3, wherein: the lower extreme of traveller sets up to square post section, the lower extreme of slide set up with square post section complex square pore.
5. A method for using the pile foundation reinforcement device of a tidal flat photovoltaic power station, which is characterized by adopting the reinforcement device of claim 4 and comprising the following steps:
s1, installing a reinforcing cylinder, coaxially sleeving the reinforcing cylinder and a pile foundation outside the pile foundation, and downwards driving the reinforcing cylinder and a wing plate on the reinforcing cylinder into a soil layer of a beach through hammering equipment;
S2, installing an annular plate, putting the annular plate into a gap between the reinforcing cylinder and the pile foundation, hammering the annular plate to enable the annular plate to move downwards, and compacting and solidifying a soil layer of the gap between the reinforcing cylinder and the pile foundation;
S3, fixing the annular plate, and fixedly connecting the annular plate with the reinforcing cylinder and the pile foundation in a welding or bolt connection mode;
S4, installing a linkage rod, enabling the vertical rod of the linkage rod to be vertically inserted into a compact soil layer between the reinforcing barrel and the pile foundation through hammering mode by the through hole, enabling the cross rod to be located above the corresponding sliding column, connecting the sliding column with the cross rod by using a pull rope, enabling the upper end of the pull rope to be hooked or bound with the cross rod, and fixedly connecting the lower end of the pull rope with the upper end of the sliding column.
CN202310996435.5A 2023-08-09 2023-08-09 Reinforcing device for pile foundation of tidal flat photovoltaic power station and application method of reinforcing device Active CN116988524B (en)

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