Anti-floating self-extending pile body and anti-floating pile group composed of same
By designing a rotating fin structure on the anti-buoyancy pile, the problem of insufficient anti-buoyancy of the building was solved, and the effect of increasing friction and improving load-bearing capacity in a confined space was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-03-24
AI Technical Summary
When a building is lightweight, deeply buried, and has a high groundwater level, insufficient anti-buoyancy measures can lead to buoyancy forces exceeding the sum of the building's weight and anti-buoyancy bearing capacity, resulting in anti-buoyancy stability failure. Existing anti-buoyancy piles or anchors have limited structural forms and are difficult to increase friction within the existing space.
The anti-buoyancy self-extending pile body consists of a pile body and multiple rotating fins. Through the cooperation of support rods, rotating shafts and support seats, the rotating fins unfold on the pile body, increasing the friction with the soil and forming a multi-ring open structure, which is suitable for anti-buoyancy treatment in confined spaces.
It enhances the stability and pull-out resistance of underground structures, simplifies the anti-buoyancy process, is suitable for anti-buoyancy treatment in narrow spaces or with limited floor height, and improves the load-bearing capacity of underground structures.
Smart Images
Figure CN224031650U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to an anti-floating self-expanding pile body and an anti-floating pile group composed of the same, and belongs to the technical field of building structures. BACKGROUND
[0002] When the self-weight of a building structure is light, the building is buried deep, and the underground water level is high, if the anti-floating measures are insufficient, the water buoyancy will be greater than the sum of the self-weight and the anti-floating bearing capacity of the building, resulting in the failure of overall anti-floating stability, thereby causing the phenomenon of insufficient anti-floating of the building.
[0003] First: the rise of the underground water level: the rise of the underground water level may be due to the infiltration of the surrounding site underground water or the inflow of surface water. When determining the anti-floating design water level, the design unit often ignores the inflow of surface water, resulting in inaccurate anti-floating design.
[0004] Second: design defects: the designer may ignore some important factors, such as not considering the highest water level under extreme weather, or improperly handling some factors in the anti-floating calculation, resulting in improper anti-floating measures.
[0005] Third: improper construction: improper monitoring and control of the underground water level during construction, or not taking effective drainage measures during construction, will all lead to insufficient anti-floating of the building.
[0006] The typical treatment methods for insufficient anti-floating of buildings include the counterweight method, the arrangement of anti-floating piles or anti-floating anchor rods. The counterweight method has high requirements for the size of the space below the ground, and the space below the ground is limited, and the arrangement space of the concrete surface layer is limited, which makes it difficult to perform secondary anti-floating structure. For existing anti-floating piles or anti-floating anchor rod products, the friction between the side surface of the anti-floating pile and the soil is used to offset the underground water buoyancy, but the structure is single, the friction with the soil is single and limited, and in some cases, dense arrangement cannot solve the problem. The available space for secondary anti-floating reconstruction is limited, and most of the time, reconstruction needs to be performed in the original space. The anti-floating pile or the anti-floating anchor rod lacks a self-treatment method that can increase the friction with the soil in the original underground space as needed. UTILITY MODEL CONTENTS
[0007] In order to overcome the defects of the prior art, an anti-floating self-expanding pile body and an anti-floating pile group composed of the same are provided to solve the above problems.
[0008] The anti-floating self-expanding pile body comprises a pile body and a plurality of rotating fins, the pile body is a hollow pipe body, at least one ring of openings is processed on the pipe wall of the pile body, each ring of openings comprises a plurality of long holes, each long hole is provided with a rotating fin, each rotating fin comprises a long strip fin, a rotating shaft, a support rod and a support seat, the support seat is arranged on the inner wall of the pile body, one end of the support rod is hinged to the support seat through the rotating shaft, the other end of the support rod is fixedly connected to the lower end inner wall of the long strip fin, the shape of the long strip fin is matched with the shape of the corresponding long hole, when the rotating fin is in the unfolded state, the upper end of the rotating fin makes an outward rotating movement through the cooperation of the rotating shaft, the support rod and the support seat, when the rotating fin is in the folded state, the rotating fin is attached to the corresponding long hole, and the outer wall of the rotating fin is on the same circular arc as the outer wall of the pile body.
[0009] As a preferred solution: when the pipe wall of the pile body is processed with multiple rings of openings, the multiple rings of openings are arranged in sequence from top to bottom along the length direction of the pile body, and the multiple long holes in each ring of openings are uniformly arranged along the circumferential direction of the pile body.
[0010] As a preferred solution: the support rod comprises a total support plate and two arc-shaped support rods and two straight rods, the total support plate is fixedly connected to the inner wall of the long strip fin, each arc-shaped support rod is provided with a straight rod, one end of each arc-shaped support rod is fixedly connected to the total support plate, the other end of each arc-shaped support rod is fixedly connected to one end of the straight rod, the other end of the straight rod is hinged to the support seat, and each arc-shaped support rod is outwardly curved towards the top of the pile body.
[0011] As a preferred solution: the support seat comprises a base, an inner core connecting block and two support plates, the base is fixedly connected to the inner wall of the pile body, the base is arranged below the corresponding long hole, each support plate is arranged at the end of the base, the inner core connecting block is arranged on the inner wall of the base, the inner core connecting block is between the two support plates, the rotating shaft is arranged between the inner core connecting block and the two support plates, and each support plate and the outer end of the inner core connecting block are provided with a straight rod, and the end of the straight rod close to the support seat is sleeved on the rotating shaft.
[0012] As a preferred solution: the long strip fin comprises a long strip outer fin and an inner support fin, the long strip outer fin and the inner support fin are fixedly connected and integrated, and a plurality of hollow holes are processed in the thickness direction of the inner support fin.
[0013] As a preferred solution: a lifting rod is arranged in the pile body, the lifting rod is vertically arranged in the pile body, the upper end of the lifting rod is a lifting force end, a plurality of bifurcated connecting rods are arranged at the lower end of the lifting rod in a matched mode, the upper ends of the bifurcated connecting rods are fixedly connected to the lower end of the lifting rod, and the lower ends of the bifurcated connecting rods are respectively hinged to the plurality of rotating fins.
[0014] As a preferred solution: the multi-branch connecting rod comprises a total rod and a plurality of branch rods, the upper end of the total rod is fixedly connected with the lower end of the lifting rod, the lower end of the total rod is uniformly distributed with a plurality of branch rods, the upper end of each branch rod is fixedly connected with the lower end of the total rod, the branch rod is correspondingly arranged with the rotating fin, and the lower end of each branch rod is hingedly connected with the bottom of the supporting rod in the corresponding rotating fin.
[0015] A floating pile group is formed by the anti-floating self-expanding pile body, and comprises a connecting plate and a plurality of anti-floating self-expanding pile bodies.
[0016] Each anti-floating self-expanding pile body comprises a pile body and a plurality of rotating fins, the pile body is a hollow pipe body, at least one ring of openings is processed on the pipe wall of the pile body, each ring of openings comprises a plurality of long holes, each long hole is correspondingly provided with a rotating fin, each rotating fin comprises an elongated fin, a rotating shaft, a supporting rod and a supporting seat, the supporting seat is arranged on the inner wall of the pile body, one end of the supporting rod is hingedly connected to the supporting seat through the rotating shaft, the other end of the supporting rod is fixedly connected with the lower end inner wall of the elongated fin, the shape of the elongated fin is matched with the shape of the corresponding long hole, when the rotating fin is in the unfolded state, the upper end of the rotating fin makes outward rotating movement through the cooperation of the rotating shaft, the supporting rod and the supporting seat, when the rotating fin is in the folded state, the rotating fin abuts at the corresponding long hole, and the outer wall of the rotating fin is on the same circular arc as the outer wall of the pile body.
[0017] The anti-floating self-expanding pile body has the advantages that:
[0018] 1、The anti-floating self-expanding pile body has the basic use performance of the anti-floating pile, and can be secondarily unfolded after the anti-floating of the building is insufficient, so as to increase the contact friction force between the insufficient anti-floating of the building and the pile body and enhance the reinforcement stability below the ground.
[0019] 2、The anti-floating self-expanding pile group has simple implementation, is not limited by the space below the ground, is suitable for anti-floating treatment in a narrow or layer height limited condition, is beneficial to standardizing the anti-floating treatment process, simplifying the anti-floating process and reducing the anti-floating reinforcement difficulty. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1Schematic diagram of the three-dimensional structure of the anti-floating self-propagating pile body;
[0021] Figure 2 Schematic diagram of the side view structure of the anti-floating self-propagating pile body;
[0022] Figure 3 Schematic diagram of the longitudinal cross-sectional structure of the anti-floating self-propagating pile body, in which the rotating fin is in the closed state, and the direction of the cross section is longitudinally cut along the axial direction of the anti-floating self-propagating pile body;
[0023] Figure 4 Schematic diagram of the three-dimensional structure of the connection relationship between the pile body, the rotating fin, and the lifting rod;
[0024] Figure 5 Schematic diagram of the longitudinal cross-sectional structure of the anti-floating self-propagating pile body, in which the rotating fin is in the open state;
[0025] Figure 6 Schematic diagram of the three-dimensional structure of the anti-floating self-propagating pile body; Figure 3 Schematic diagram of the enlarged structure at position A;
[0026] Figure 7 Schematic diagram of the front view structure of the long strip-shaped outer sheet;
[0027] Figure 8 Schematic diagram of the side view structure of the connecting plate;
[0028] Figure 9 Schematic diagram of the side view structure of the connection relationship between the pile body and the connecting plate, in which the pile body and the connecting plate are in the use state;
[0029] Figure 10 Schematic diagram of the three-dimensional structure of the anti-floating self-propagating pile body; Figure 5 Schematic diagram of the enlarged structure at position B.
[0030] In the figure: 1-pile body; 2-rotating fin; 3-long hole; 4-long strip-shaped fin; 4-1-long strip-shaped outer sheet; 4-2-inner support sheet; 4-3-hollow hole; 5-rotating shaft; 6-supporting rod; 6-1-total supporting plate; 6-2-circular arc-shaped supporting rod; 6-3-straight rod; 7-supporting seat; 7-1-bottom seat; 7-2-inner core connecting block; 7-3-branch plate; 8-lifting rod; 9-multi-branch connecting rod; 9-1-total rod; 9-2-branch rod; 10-connecting plate; 11-soil body; 12-upper stop rail. DETAILED DESCRIPTION
[0031] The following specific examples illustrate the embodiments of the present application, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosure of the present specification. The present application can also be implemented or applied in other different specific embodiments, and each detail in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present application.
[0032] Specific embodiment one: combined with Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 The anti-floating self-propagating pile body in the present embodiment includes a pile body 1 and a plurality of rotating fins 2. The pile body 1 is a hollow pile product, and its structural form is consistent with that of the existing hollow pile. The lower end is a screw-in end, and the outer wall of the screw-in end can be machined with external threads. At least one circle of openings is machined on the pipe wall of the pile body 1. The machining position of the opening is close to the top of the pile body 1. According to the reinforcement and reconstruction design requirements, the opening can be provided at the corresponding position on the pile body 1. Each circle of openings includes a plurality of long holes 3, and each long hole 3 is provided with a rotating fin 2. The number of long holes 3 is matched with the outer diameter of the pile body 1, and the value range of the outer diameter of the pile body 1 is 300-1000 mm.
[0033] When the value range of the outer diameter of the pile body 1 is 300 mm, the number of long holes 3 can be 3-4, and the number of corresponding rotating fins 2 is also 3-4.
[0034] When the value range of the outer diameter of the pile body 1 is 300 mm, the number of long holes 3 can be 6-10, and the number of corresponding rotating fins 2 is also 6-10.
[0035] Each rotating fin 2 includes an elongated fin 4, a rotating shaft 5, a support rod 6, and a support base 7. The elongated fin 4 is made of steel or other rigid materials, and its shape can be rectangular, trapezoidal, or other shapes. Its structural shape is conducive to resisting the extrusion of the soil 11. The support base 7 is set on the inner wall of the pile body 1. One end of the support rod 6 is hinged to the support base 7 through the rotating shaft 5, and the other end of the support rod 6 is fixedly connected to the lower inner wall of the elongated fin 4. The shape of the elongated fin 4 matches the shape of its corresponding elongated hole 3. The rotating fins can be opened outwards as needed. When the rotating fins 2 are in the unfolded state, the upper end of the rotating fins 2 rotates outwards through the cooperation of the rotating shaft 5, the support rod 6 and the support seat 7. When the rotating fins 2 are in the retracted state, the rotating fins 2 are attached to their corresponding elongated holes 3. The shape of the elongated holes 3 is set to match the shape of the elongated fins 4. The outer wall of the rotating fins 2 is on the same arc as the outer wall of the pile body 1, thereby improving the flatness of the pile body 1 and facilitating its stable insertion into the soil 11.
[0036] The rotating fin 2 in this embodiment is particularly suitable for the pile body 1, and can also be adapted to existing anti-buoyancy anchors with larger dimensions according to design requirements.
[0037] In this embodiment, the pile body 1, with the cooperation of multiple rotating fins 2, facilitates the expansion of the connection range and connection strength between the pile body 1 and the surrounding soil 11, thereby improving the ground's anti-buoyancy performance.
[0038] In this embodiment, the method of lowering the anti-buoyancy self-extending pile and the corresponding power method are the same as the processing procedure of existing anti-buoyancy piles.
[0039] Specific Implementation Method Two: This implementation method is a further limitation of Specific Implementation Method One. When multiple openings are processed on the pipe wall of the pile body 1, the multiple openings are arranged sequentially from top to bottom along the length direction of the pile body 1. The multiple elongated holes 3 in each opening are evenly arranged along the circumference of the pile body 1. The even distribution of the openings is conducive to the even unfolding of the multiple rotating fins 2, and to the self-stability of the multiple rotating fins 2 after they unfold after the anti-buoyancy self-extending pile body is inserted into the soil 11.
[0040] Combination Figure 5 and Figure 10 As shown, the top of the inner wall of the elongated hole 3 is machined with an upper retaining edge 12, which is used to limit the limiting effect after the rotating fin 2 is retracted, and to prevent the rotating fin 2 from over-retracting after flipping and retracting. The upper retaining edge 12 can also support the retracted limit position of the rotating fin 2, ensuring that the outer wall of the pile body 1 is regular. The top of the rotating fin 2 can be machined with a groove that engages with the upper retaining edge 12, which helps to improve the accuracy and stability of the engagement position when the two are connected.
[0041] Specific implementation three: this embodiment is further limited to specific implementation one or two, combined with Figure 2 As shown in the drawings, the structure of the support rod 6 is simple, and the arrangement position is reasonable, which is beneficial to cooperate with the long strip-shaped fin 4 to realize the overturning control, so that the rotation angle of the long strip-shaped fin 4 is fixed and controllable. The support rod 6 includes a total support plate 6-1 and two circular arc-shaped support rods 6-2 and two straight rods 6-3. The total support plate 6-1 is fixedly connected to the inner wall of the long strip-shaped fin 4. Each circular arc-shaped support rod 6-2 is provided with a straight rod 6-3. One end of each circular arc-shaped support rod 6-2 is fixedly connected to the total support plate 6-1. The other end of each circular arc-shaped support rod 6-2 is fixedly connected to one end of the straight rod 6-3. The other end of the straight rod 6-3 is hingedly connected to the support seat 7. Each circular arc-shaped support rod 6-2 is outwardly curved towards the top of the pile body 1.
[0042] Further, each straight rod 6-3 is fixedly connected to the side of the corresponding circular arc-shaped support rod 6-2 close to the lower end. Each circular arc-shaped support rod 6-2 forms a three-pronged structure rod body under the cooperation of the straight rod 6-3, forming a structure form of three end connection positions, which is beneficial to be connected with other cooperating components.
[0043] Further, the circular arc-shaped support rod 6-2 is stably connected to the bottom of the long strip-shaped fin 4 through the total support plate 6-1. The shape and arrangement position of the circular arc-shaped support rod 6-2 enable it to drive the long strip-shaped fin 4 to unfold along a predetermined outer turning track path during rotation, realize the rotation mode that the bottom end of the long strip-shaped fin 4 is the rotation reference and the top end unfolds outward, and is beneficial to the micro-motion unfolding inside the soil body 11.
[0044] Specific implementation four: this embodiment is further limited to specific implementation one, two or three. The support seat 7 includes a base 7-1, an inner core connecting block 7-2 and two support plates 7-3. The base 7-1 is fixedly connected to the inner wall of the pile body 1. The base 7-1 is arranged below the corresponding long hole 3. The base 7-1 is provided with one support plate 7-3 at each end. The inner core connecting block 7-2 is arranged on the inner wall of the base 7-1. The inner core connecting block 7-2 is between the two support plates 7-3. The rotating shaft 5 is arranged between the inner core connecting block 7-2 and the two support plates 7-3. Each support plate 7-3 is provided with one straight rod 6-3 between the outer end of the inner core connecting block 7-2. The end of the straight rod 6-3 close to the support seat 7 is sleeved on the rotating shaft 5.
[0045] Further, the base 7-1 has a stable supporting effect on the support rod 6. Meanwhile, one end of the straight rod 6-3 is sleeved on the rotating shaft 5. During the rotation of the circular arc-shaped support rod 6-2, it plays a role in stable connection and positioning, and can also cooperate with stable rotation movement.
[0046] Specific embodiment five: this embodiment is a further limitation of specific embodiments one, two, three or four, the long strip-shaped fin 4 itself is a double-layer composite structure, the long strip-shaped fin 4 includes a long strip-shaped outer sheet 4-1 and an inner support sheet 4-2, the long strip-shaped outer sheet 4-1 and the inner support sheet 4-2 are fixedly connected as a whole, and the inner support sheet 4-2 is processed with a plurality of hollow holes 4-3 along the thickness direction thereof.
[0047] Further, the inner support sheet 4-2 is the same shape as the long strip-shaped outer sheet 4-1, wherein the inner support sheet 4-2 is arranged towards the inner side of the pile body 1, and the inner support sheet 4-2 is processed with a plurality of hollow holes 4-3 along the thickness direction thereof, so as to be able to reduce the weight of the long strip-shaped fin 4 as a whole while improving the uniform compression resistance of the long strip-shaped fin 4 itself, and avoid damage during the turnover process.
[0048] Specific embodiment six: this embodiment is a further limitation of specific embodiments one, two, three, four or five, the driving force source before the turnover of the rotating fin 2 can be various, which can be manually turned over near the ground position, or electrically controlled, and a corresponding structure form is that a lifting rod 8 is arranged in the pile body 1, the lifting rod 8 is vertically arranged in the pile body 1, the upper end of the lifting rod 8 is a lifting force end, and the lower end of the lifting rod 8 is matched with a multi-forked connecting rod 9, the upper end of the multi-forked connecting rod 9 is fixedly connected with the lower end of the lifting rod 8, and the lower end of the multi-forked connecting rod 9 is respectively hingedly connected with a plurality of rotating fins 2.
[0049] The lifting rod 8 in this embodiment has a simple structure and is convenient to force, and after the plurality of rotating fins 2 are turned over by the lifting rod 8, the pile body 1 can be poured with concrete slurry.
[0050] In addition, in each rotating fin 2, each circular arc-shaped support rod 6-2 forms a three-pronged structure rod body under the cooperation of the straight rod 6-3, forming a structure form of three end connection positions, which is beneficial to stable connection with the lifting rod 8 and the support seat 7 respectively.
[0051] Further, the construction personnel lifts the lifting rod 8, thereby driving the plurality of rotating fins 2 in the pile body 1 to turn over outward at the same time, increasing the contact area of the pile body 1 in the soil body 11, and improving the anti-floating performance and the carrying capacity.
[0052] Specific embodiment seven: this embodiment is a further limitation of specific embodiments one, two, three, four, five or six, the multi-forked connecting rod 9 includes a total rod 9-1 and a plurality of branch rods 9-2, the upper end of the total rod 9-1 is fixedly connected with the lower end of the lifting rod 8, the lower end of the total rod 9-1 is uniformly arranged with a plurality of branch rods 9-2, the upper end of each branch rod 9-2 is fixedly connected with the lower end of the total rod 9-1, the branch rod 9-2 is arranged one by one with the rotating fin 2, and the lower end of each branch rod 9-2 is hingedly connected with the bottom of the support rod 6 in the corresponding rotating fin 2.
[0053] Further, the plurality of sub-rods 9-2 are arranged one-to-one with the support rods 6 in the rotating fins 2, ensuring that the plurality of sub-rods 9-2 drive the rotating fins 2 to stably overturn in the soil body 11 when the construction personnel stretch using the pull rod 8. The structure of the plurality of sub-rods 9-2 distributed at the lower end of the total rod 9-1 is beneficial to improve the structural feature of uniformly arranging the plurality of rotating fins 2, and is beneficial to the synchronous rotation of the plurality of rotating fins 2, and forms a uniform and synchronous secondary expansion anti-floating performance structure deformation with the surrounding of the pile body 1.
[0054] Specific implementation method eight: in combination Figures 1 to 10 In this embodiment, the connecting plate 10 and the plurality of anti-floating self-expanding pile bodies are included. The connecting plate 10 is horizontally arranged at the top of the soil body 11, and the plurality of anti-floating self-expanding pile bodies are vertically arranged in parallel on the connecting plate 10. The connecting plate 10 is a steel plate, and a plurality of through holes are arranged on the connecting plate 10. Each through hole is provided with an anti-floating self-expanding pile body. The connecting plate 10 is horizontally arranged in the soil body 11, and the specific arrangement position is determined according to the design requirements. The construction personnel vertically arranges each anti-floating self-expanding pile body on the connecting plate 10. After the anti-floating self-expanding pile body enters the soil body 11, the plurality of anti-floating self-expanding pile bodies form an anti-floating pile group. The connecting plate 10 ensures the relative position and integral connection relationship of each anti-floating self-expanding pile body, is beneficial to improve the stability and bearing capacity of the plurality of anti-floating self-expanding pile bodies in the soil body 11, and improves and ensures the anti-floating reconstruction quality.
[0055] Each anti-floating self-expanding pile body includes a pile body 1 and a plurality of rotating fins 2. The pile body 1 is a hollow pile product, and its structure is consistent with the structure of the existing hollow pile. The lower end is a screw-in end, and the outer wall of the screw-in end can be machined with external threads. At least one ring of openings is machined on the pipe wall of the pile body 1. The machining position of the opening is close to the top of the pile body 1. According to the reinforcement and reconstruction design requirements, the opening can be provided at the corresponding position on the pile body 1. Each ring of openings includes a plurality of long holes 3. Each long hole 3 is provided with a rotating fin 2. The number of long holes 3 is matched with the outer diameter of the pile body 1. The value range of the outer diameter of the pile body 1 is 300-1000 mm. When the value range of the outer diameter of the pile body 1 is 300 mm, the number of long holes 3 can be 3-4, and the number of corresponding rotating fins 2 is also 3-4. When the value range of the outer diameter of the pile body 1 is 300 mm, the number of long holes 3 can be 6-10, and the number of corresponding rotating fins 2 is also 6-10.
[0056] Each rotating fin 2 comprises a long strip fin 4, a rotating shaft 5, a support rod 6 and a support seat 7, the long strip fin 4 is made of steel sheet or other hard material, which can be rectangular, trapezoidal or other shapes, and its structure shape is conducive to its resistance to extrusion of the soil body 11 to turn outward, the support seat 7 is arranged on the inner wall of the pile body 1, one end of the support rod 6 is hinged to the support seat 7 through the rotating shaft 5, the other end of the support rod 6 is fixedly connected with the lower end inner wall of the long strip fin 4, the shape of the long strip fin 4 is matched with the shape of the corresponding long hole 3, and the rotating fin can be opened outward as needed. When the rotating fin 2 is in the unfolded state, the upper end of the rotating fin 2 makes an outward turning movement through the cooperation of the rotating shaft 5, the support rod 6 and the support seat 7, and when the rotating fin 2 is in the folded state, the rotating fin 2 abuts against the corresponding long hole 3, the shape of the long hole 3 is matched with the shape of the long strip fin 4, and the outer wall of the rotating fin 2 is on the same circular arc as the outer wall of the pile body 1, thereby improving the flatness of the appearance of the pile body 1 and facilitating its stable insertion into the soil body 11.
[0057] The rotating fin 2 in the embodiment is particularly suitable for the pile body 1, and can also be adapted to an existing anti-floating anchor rod with a larger size according to design requirements.
[0058] The pile body 1 in the embodiment is conducive to expanding the connection range and strength of the pile body 1 and the surrounding soil body 11 and improving the ground anti-floating performance under the cooperation of the plurality of rotating fins 2. The other unmentioned structures and connection relationships are the same as those in the second, third, fourth, fifth, sixth or seventh embodiments.
[0059] The working process of the anti-floating self-expanding pile body in the utility model is as follows: after the pile body 1 is arranged at the predetermined position in the soil body 11 according to design requirements, when it is needed to open the rotating fin 2, the long strip fin 4 makes a top end outward turning movement at the long hole 3 on the pile body 1 through the cooperation of the support rod 6, the support seat 7 and the rotating shaft 5, the position of the rotating fin 2 after turning is fixed and can also be adjusted according to requirements, and then the concrete is finally poured.
[0060] The working process of the anti-floating pile group in the utility model is as follows: according to the structural design requirements, the number of anti-floating self-expanding pile bodies to be used is determined, first, the construction personnel place the connecting plate 10 at the predetermined position in the soil body 11, the pile body 1 passes through the connecting plate 10 and is inserted into the soil body 11 at the predetermined position, the rotating fin 2 is unfolded outward, the long strip fin 4 makes a top end outward turning movement at the long hole 3 on the pile body 1 through the cooperation of the support rod 6, the support seat 7 and the rotating shaft 5 on the rotating fin 2, and the turning angle is slightly turned according to design requirements, then the anti-floating self-expanding pile body is poured, thereby completing the fixing process of the anti-floating pile group in the soil body 11.
[0061] The utility model discloses another working process of anti -floating pile group: according to structural design requirement, determine the number of anti -floating type self -expanding pile body that uses, first construction personnel will the predetermined number of anti -floating type self -expanding pile body's wear and set in the connecting plate 10 after together arrangement in the predetermined position at soil body 11, further wear and set every pile body 1 to the predetermined position in soil body 11, according to the design requirement corresponding opening the rotation fin 2 of anti -floating type self -expanding pile body at corresponding position realizes the movement of outward unfolding, realizes the secondary anti -floating reinforcement measure of partial or multi -position, the overturning principle is identical with the overturning principle in the installation process of preceding one, and the overturning angle is according to design requirement and is slightly angular overturning, thereby completes the fixing process of anti -floating pile group in soil body 11.
Claims
1. A type of anti-buoyancy self-extending pile, characterized in that: The pile body (1) includes a pile body (1) and multiple rotating fins (2). The pile body (1) is a hollow tube. At least one ring of openings is machined on the tube wall of the pile body (1). Each ring of openings includes multiple elongated holes (3). Each elongated hole (3) corresponds to a rotating fin (2). Each rotating fin (2) includes an elongated fin (4), a rotating shaft (5), a support rod (6), and a support seat (7). The support seat (7) is set on the inner wall of the pile body (1). One end of the support rod (6) is hinged to the support seat (7) through the rotating shaft (5). (6) The other end is fixedly connected to the lower inner wall of the long strip fin (4). The shape of the long strip fin (4) is matched with the shape of its corresponding long hole (3). When the rotating fin (2) is in the unfolded state, the upper end of the rotating fin (2) rotates outward through the cooperation of the rotating shaft (5), the support rod (6) and the support seat (7). When the rotating fin (2) is in the retracted state, the rotating fin (2) is attached to its corresponding long hole (3). The outer wall of the rotating fin (2) and the outer wall of the pile body (1) are on the same arc.
2. The anti-buoyancy self-extending pile body according to claim 1, characterized in that: When multiple openings are machined on the pipe wall of the pile body (1), the multiple openings are arranged from top to bottom along the length direction of the pile body (1), and multiple long holes (3) in each opening are evenly arranged along the circumference of the pile body (1).
3. The anti-buoyancy self-extending pile body according to claim 1, characterized in that: The support rod (6) includes a main support plate (6-1), two arc-shaped support rods (6-2), and two straight rods (6-3). The main support plate (6-1) is fixedly connected to the inner wall of the long strip fin (4). Each arc-shaped support rod (6-2) is provided with a corresponding straight rod (6-3). One end of each arc-shaped support rod (6-2) is fixedly connected to the main support plate (6-1), and the other end of each arc-shaped support rod (6-2) is fixedly connected to one end of the straight rod (6-3). The other end of the straight rod (6-3) is hinged to the support seat (7). Each arc-shaped support rod (6-2) is bent outward toward the top of the pile body (1).
4. The anti-buoyancy self-extending pile body according to claim 3, characterized in that: The support base (7) includes a base (7-1), an inner core connecting block (7-2), and two support plates (7-3). The base (7-1) is fixedly connected to the inner wall of the pile body (1). The base (7-1) is located below its corresponding elongated hole (3). A support plate (7-3) is provided at each end of the base (7-1). The inner core connecting block (7-2) is located on the inner wall of the base (7-1) and between the two support plates (7-3). The rotating shaft (5) passes through the inner core connecting block (7-2) and the two support plates (7-3). A straight rod (6-3) is provided between each support plate (7-3) and the outer end of the inner core connecting block (7-2). The end of the straight rod (6-3) near the support base (7) is fitted onto the rotating shaft (5).
5. The anti-buoyancy self-extending pile body according to claim 1, characterized in that: The elongated fin (4) includes an elongated outer fin (4-1) and an inner support fin (4-2). The elongated outer fin (4-1) and the inner support fin (4-2) are fixedly connected as a whole. The inner support fin (4-2) has multiple hollow holes (4-3) processed along its thickness direction.
6. A self-extending anti-buoyancy pile body according to claim 1, 2, 3, 4 or 5, characterized in that: A lifting rod (8) is installed inside the pile body (1). The lifting rod (8) is vertically installed inside the pile body (1). The upper end of the lifting rod (8) is the lifting force end. The lower end of the lifting rod (8) is equipped with a multi-branched connecting rod (9). The upper end of the multi-branched connecting rod (9) is fixedly connected to the lower end of the lifting rod (8). The lower end of the multi-branched connecting rod (9) is hinged to multiple rotating fins (2).
7. The anti-buoyancy self-extending pile body according to claim 6, characterized in that: The multi-branched connecting rod (9) includes a main rod (9-1) and multiple branch rods (9-2). The upper end of the main rod (9-1) is fixedly connected to the lower end of the lifting rod (8). Multiple branch rods (9-2) are evenly distributed at the lower end of the main rod (9-1). The upper end of each branch rod (9-2) is fixedly connected to the lower end of the main rod (9-1). Each branch rod (9-2) is set in correspondence with the rotating fin (2). The lower end of each branch rod (9-2) is hinged to the bottom of the support rod (6) in its corresponding rotating fin (2).
8. A group of anti-buoyancy piles, comprising an anti-buoyancy self-extending pile body according to any one of claims 1 to 7, characterized in that: It includes a connecting plate (10) and multiple anti-buoyancy self-extending piles. The connecting plate (10) is horizontally set on the top of the soil (11), and multiple anti-buoyancy self-extending piles are vertically arranged in parallel on the connecting plate (10). Each anti-buoyancy self-extending pile includes a pile body (1) and multiple rotating fins (2). The pile body (1) is a hollow tube. At least one ring of openings is machined on the tube wall of the pile body (1). Each ring of openings includes multiple elongated holes (3). Each elongated hole (3) is correspondingly provided with a rotating fin (2). Each rotating fin (2) includes an elongated fin (4), a rotating shaft (5), a support rod (6), and a support seat (7). The support seat (7) is provided on the inner wall of the pile body (1). One end of the support rod (6) is hinged to the support seat (7) through the rotating shaft (5). On the upper part, the other end of the support rod (6) is fixedly connected to the lower inner wall of the long strip fin (4). The shape of the long strip fin (4) is matched with the shape of its corresponding long hole (3). When the rotating fin (2) is in the unfolded state, the upper end of the rotating fin (2) rotates outward through the cooperation of the rotating shaft (5), the support rod (6) and the support seat (7). When the rotating fin (2) is in the retracted state, the rotating fin (2) is attached to its corresponding long hole (3). The outer wall of the rotating fin (2) and the outer wall of the pile body (1) are on the same arc.