CN112064634A - Bridge pile foundation structure and construction method thereof - Google Patents
Bridge pile foundation structure and construction method thereof Download PDFInfo
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- CN112064634A CN112064634A CN202010905698.7A CN202010905698A CN112064634A CN 112064634 A CN112064634 A CN 112064634A CN 202010905698 A CN202010905698 A CN 202010905698A CN 112064634 A CN112064634 A CN 112064634A
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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
- E02D5/72—Pile shoes
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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
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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
- E02D5/22—Piles
- E02D5/64—Repairing piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/20—Miscellaneous comprising details of connection between elements
Abstract
The invention discloses a bridge pile foundation structure which comprises a riverbed, a bridge pile foundation and a reinforcing structure, wherein the reinforcing structure is arranged on the riverbed; the riverbed is vertically provided with a bridge pile foundation, the fixed base plate is of an annular structure, the circle center position of the fixed base plate is located at the center position of the bridge pile foundation, eight groups of second fixed plates are arranged on the top surface of the fixed base plate, and the outer wall of the bridge pile foundation is provided with a reinforcing structure and is connected with the second fixed plates on the fixed base plate through the reinforcing structure; the first fixed semi-ring is connected with the second fixed semi-ring through a telescopic plate, two groups of first telescopic rods are symmetrically arranged on the arc-shaped outer wall of the first fixed semi-ring and are movably connected with one end of the first telescopic rods, and two groups of second telescopic rods are symmetrically arranged on the arc-shaped outer wall of the second fixed semi-ring and are movably connected with one end of the second telescopic rods; the invention can adjust the position of the fixed reinforcement according to the height of the bridge pile foundation, selects the best fixed position, and has convenient operation and good firmness.
Description
Technical Field
The invention belongs to the technical field of bridges, and relates to a bridge pile foundation structure, in particular to a bridge pile foundation structure and a construction method thereof.
Background
With the development of economic construction, deepwater bridge engineering is increasing day by day, and a bridge pile foundation is used as the most main basic type in the bridge engineering and is very widely applied.
In the prior art, the reinforcing device is usually fixed on the fixed and reinforced positions of the bridge pile foundation, and is not easy to adjust, so that the reinforcing device is not suitable for reinforcing different bridge pile foundations and cannot find the optimal reinforcing position; in the installation process of the reinforced structure, a plurality of groups of bolts are required to be matched for working, and the fastening work of the bolts is extremely problem of consuming manpower and material resources; in addition, the reinforcing structure solves the problems that in the prior art, due to the influence of water flow near the bridge pile foundation, hydrodynamic characteristics near the pile foundation are complex, and due to the scouring action of the water flow on the bridge pile foundation, the stability of single piles or grouped piles of the bridge is reduced due to the scouring action as time goes on, so that the structure of the bridge pile foundation is damaged, the whole bridge has potential safety hazards, the common diseases of the bridge pile foundation mainly have two types, the effective pile length is reduced due to the riverbed scouring, the bearing capacity of the pile foundation is insufficient, and the section strength of the pile body is insufficient due to the defect of the section quality of the pile body.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, the reinforcing device is usually fixed on the fixed and reinforced positions of the bridge pile foundation and is not easy to adjust, so that the reinforcing device is not suitable for reinforcing different bridge pile foundations and cannot find the optimal reinforcing position; in the installation process of the reinforced structure, a plurality of groups of bolts are required to be matched for working, and the fastening work of the bolts is extremely problem of consuming manpower and material resources; in addition, the reinforcing structure solves the problems that in the prior art, due to the influence of water flow near the bridge pile foundation, hydrodynamic characteristics near the pile foundation are complex, and due to the scouring action of the water flow on the bridge pile foundation, the stability of a single pile or a pile group of the bridge is reduced due to the scouring action as time goes on, so that the structure of the bridge pile foundation is damaged, the whole bridge has potential safety hazards, the common diseases of the bridge pile foundation mainly belong to two types, the effective pile length is reduced due to the riverbed scouring, the bearing capacity of the pile foundation is insufficient, and the section strength of the pile body is insufficient due to the defect of the section quality of the pile body, and the bridge foundation structure and the construction method thereof are provided.
The purpose of the invention can be realized by the following technical scheme:
a bridge pile foundation structure comprises a riverbed, a bridge pile foundation and a reinforcing structure;
the fixed base plate is of an annular structure, the circle center of the fixed base plate is located at the center of the bridge pile foundation, eight groups of second fixed plates are arranged on the top surface of the fixed base plate, and a reinforcing structure is arranged on the outer wall of the bridge pile foundation and connected with the second fixed plates on the fixed base plate through the reinforcing structure;
the reinforcing structure is symmetrically arranged along the vertical plane of the center of the bridge pile foundation and comprises a first fixed half ring, a second fixed half ring, a telescopic plate, a first telescopic rod, a second telescopic rod and a connecting piece; the inner diameter of the first fixed half ring and the inner diameter of the second fixed half ring are matched with the outer diameter of the bridge pile foundation, the first fixed half ring is positioned above the second fixed half ring and is connected with the second fixed half ring through a telescopic plate, two groups of first telescopic rods are symmetrically arranged on the arc-shaped outer wall of the first fixed half ring and are movably connected with one end of each first telescopic rod, two groups of second telescopic rods are symmetrically arranged on the arc-shaped outer wall of the second fixed half ring and are movably connected with one end of each second telescopic rod;
the other end of first telescopic link and the other end of second telescopic link swing joint respectively have the connecting piece, and the connecting piece is connected with the second fixed plate plug, and the bottom of second fixed semi-ring is installed through the bolt and is inserted the floor, inserts the floor and be the sector plate, and insert and be provided with the sharp piece of multiunit on the outer wall on floor, sharp piece is the barb structure.
Preferably, the first fixed half ring and the second fixed half ring are symmetrically arranged along the bridge pile foundation, connecting lugs are arranged at two ends of the first fixed half ring and two ends of the second fixed half ring respectively, the connecting lugs of the two groups of first fixed half rings are fixedly connected through connecting bolts, and the connecting lugs of the two groups of second fixed half rings are fixedly connected through connecting bolts.
Preferably, the expansion plate includes the fly leaf, fixed lagging, fly leaf and fixed lagging all with the arc, and the inner wall of fixed lagging and the outer wall butt of bridge pile foundation, the bottom of fixed lagging is installed on the fixed semi-ring of second, the bottom of fly leaf penetrates the inner chamber of fixed lagging to with fixed lagging sliding connection, the top and the first fixed semi-ring of fly leaf are connected, be provided with the first screw hole with first fastening bolt looks adaptation on the outer wall of fixed lagging, the outer wall butt of first fastening bolt and fly leaf.
Preferably, the connecting piece comprises a first fixing plate and inserting plates, the other end of the first telescopic rod and the other end of the second telescopic rod are respectively and movably connected with the first fixing plate, four groups of inserting plates are arranged on the bottom surface of the first fixing plate, and pin holes are formed in the side walls of the inserting plates.
Preferably, the first telescopic rod and the second telescopic rod have the same structure and both comprise a movable rod and a movable tube; the one end of movable rod respectively with the first stationary half ring and the second stationary half ring swing joint that correspond, the other end of movable rod penetrates the inner chamber of movable tube to with movable tube sliding connection, the other end of movable rod is connected with the first fixed plate on the connecting piece, be provided with on the outer wall of movable tube with the second screw hole of second fastening bolt looks adaptation, the outer wall butt of second fastening bolt and movable rod.
Preferably, the eight groups of second fixing plates are annularly arranged around the circle center of the fixing base plate, the four groups of second fixing plates and the other four groups of second fixing plates are both positioned on the radius of the fixing base plate, and the distance between the four groups of second fixing plates and the bridge pile foundation is greater than the distance between the other four groups of second fixing plates and the bridge pile foundation.
Preferably, the second fixing plate is provided with a jack matched with the plug board on the first fixing plate, and the second fixing plate is internally provided with a plug-pull assembly for fixing the first fixing plate;
the inserting plate assembly comprises an operating rod, an operating handle, a limiting plate, a pin shaft, a movable shaft, a sleeve, a fixed cylinder, a spring and a sliding plate; one end of the operating rod extends to the inner cavity of the second fixing plate and is in sliding connection with the second fixing plate, two groups of sleeve connections are sleeved on the outer wall of the operating rod respectively, four groups of limiting plates are arranged in the second fixing plate, the limiting plates are located on one side of the insertion holes, pin shafts matched with the pin holes in the insertion plates are slidably mounted on the side walls of the limiting plates, one end of the movable shaft is movably connected with the sleeve, and the other end of the movable shaft is movably connected with the pin shafts.
Preferably, one end of the operating rod is connected with the sliding plate, the sliding plate is located in the fixed cylinder and is in sliding connection with the inner wall of the fixed cylinder, the sliding plate is connected with the inner wall of the fixed cylinder through a spring, the fixed cylinder is installed on the inner wall of the second fixed plate, and the other end of the operating rod is connected with the operating handle.
Preferably, the construction method of the bridge pile foundation structure comprises the following steps:
s1, after the bridge pile foundation is poured and formed on the river bed, firstly, the length of the expansion plate is adjusted according to the height of the bridge pile foundation, the distance between the first fixed half ring and the second fixed half ring is changed, then, the first fixed half ring is fixedly sleeved on the upper portion of the outer wall of the bridge pile foundation through a connecting bolt, the second fixed half ring is fixedly sleeved on the lower portion of the outer wall of the bridge pile foundation, the floor inserting plate is inserted into a floor inserting groove reserved in the river bed, and concrete is used for pouring;
s2, adjust the length of first telescopic link and second telescopic link and be fixed, then, inwards press the action bars, make the action bars slide, and the sleeve pipe of establishing through the action bars upper cover, make under the linkage effect of loose axle, the round pin axle is to keeping away from the direction removal of jack along the limiting plate, and simultaneously, when pressing the action bars, the sliding plate slides along the inner wall of a fixed section of thick bamboo, and make the spring be in compression state, the picture peg on the first fixed plate of connecting first telescopic link and second telescopic link corresponds respectively and inserts in the jack of second fixed plate, release the external force of action bars, receive the restoring force effect of spring, make the round pin axle reset and insert in the round pin hole on the picture peg, thereby accomplished the reinforcement work to the bridge pile foundation, through the picture peg subassembly that sets up in the second fixed plate on fixed baseplate, convenient installation to reinforced structure.
Compared with the prior art, the invention has the beneficial effects that: after the bridge pile foundation is poured and formed on the river bed, firstly, the length of a telescopic plate is adjusted according to the height of the bridge pile foundation, the distance between a first fixed half ring and a second fixed half ring is changed, then, the first fixed half ring is fixedly sleeved above the outer wall of the bridge pile foundation through a connecting bolt, the second fixed half ring is fixedly sleeved below the outer wall of the bridge pile foundation, and the floor inserting plate is inserted into a floor inserting plate groove reserved in the river bed and is poured by concrete; the fixing and reinforcing positions can be adjusted according to the height of the bridge pile foundation through the matching of the expansion plate, the first expansion link and the second expansion link, and the optimal fixing position is selected, so that the problems that in the prior art, the fixing and reinforcing positions of the bridge pile foundation are usually fixed by a reinforcing device, the reinforcing device is not easy to adjust, and is not suitable for reinforcing different bridge pile foundations and the optimal reinforcing position cannot be found are solved; the inserted floor and the pointed blocks on the inserted floor greatly improve the firmness with the river bed, so that the stable and firm performance of the reinforcing device on the bridge pile foundation is improved;
the length of the first telescopic rod and the second telescopic rod is adjusted and fixed, then the operating handle is pressed inwards to enable the operating rod to slide, the sleeve pipe sleeved on the operating rod enables the pin shaft to move along the direction far away from the jack along the limiting plate under the connecting action of the movable shaft, meanwhile, when the operating handle is pressed, the sliding plate slides along the inner wall of the fixed cylinder, the spring is in a compression state, the inserting plates on the first fixed plate connected with the first telescopic rod and the second telescopic rod are respectively and correspondingly inserted into the jack of the second fixed plate, the external force of the operating handle is released, the pin shaft is reset and inserted into the pin holes on the inserting plates under the action of the restoring force of the spring, thereby the reinforcing work on the bridge pile foundation is completed, the installation of the reinforcing structure is convenient through the inserting plate assembly arranged in the second fixed plate on the fixed base plate, the prior art is solved, the reinforcing structure is in the installation process, a plurality of groups of bolts are required to be matched for working, and the fastening work of the bolts is extremely problem of consuming manpower and material resources; in addition, the reinforcing structure solves the problems that in the prior art, due to the influence of water flow near the bridge pile foundation, hydrodynamic characteristics near the pile foundation are complex, and due to the scouring action of the water flow on the bridge pile foundation, the stability of single piles or grouped piles of the bridge is reduced due to the scouring action as time goes on, so that the structure of the bridge pile foundation is damaged, the whole bridge has potential safety hazards, the common diseases of the bridge pile foundation mainly have two types, the effective pile length is reduced due to the riverbed scouring, the bearing capacity of the pile foundation is insufficient, and the section strength of the pile body is insufficient due to the defect of the section quality of the pile body.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the whole of the present invention.
Fig. 2 is an overall top view of the present invention.
Fig. 3 is a schematic perspective view of the connection between the first stationary half ring and the second stationary half ring according to the present invention.
Fig. 4 is a schematic perspective view of the first fixing plate and the second fixing plate according to the present invention.
Fig. 5 is a schematic structural view of the interior of the second fixing plate according to the present invention.
Fig. 6 is a schematic view of the structure inside the fixed cylinder according to the present invention.
In the figure: 1. a riverbed; 2. fixing the substrate; 3. a bridge pile foundation; 4. reinforcing the structure; 5. a first stationary half ring; 6. a second stationary half ring; 7. a retractable plate; 8. a first telescopic rod; 9. a second telescopic rod; 10. a movable rod; 11. a movable tube; 12. connecting lugs; 13. a movable plate; 14. fixing the sleeve plate; 15. inserting a floor; 16. a sharp block; 17. a ground bolt; 18. a connecting member; 19. a first fixing plate; 20. inserting plates; 21. a pin hole; 22. a second fixing plate; 23. a jack; 24. an operating lever; 25. an operating handle; 26. a limiting plate; 27. a pin shaft; 28. a movable shaft; 29. a sleeve; 30. a fixed cylinder; 31. a spring; 32. a sliding plate.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a bridge pile foundation structure includes a river bed 1, a bridge pile foundation 3, and a reinforcing structure 4;
the river bed 1 is vertically provided with a bridge pile foundation 3, the fixed base plate 2 is installed on the top surface of the river bed 1 through a ground bolt 17, the fixed base plate 2 is of an annular structure, the circle center position of the fixed base plate 2 is located at the center position of the bridge pile foundation 3, eight groups of second fixed plates 22 are arranged on the top surface of the fixed base plate 2, and the outer wall of the bridge pile foundation 3 is provided with a reinforcing structure 4 and is connected with the second fixed plates 22 on the fixed base plate 2 through the reinforcing structure 4;
the reinforcing structure 4 is symmetrically arranged along the vertical plane of the center of the bridge pile foundation 3, and the reinforcing structure 4 comprises a first fixed half ring 5, a second fixed half ring 6, a telescopic plate 7, a first telescopic rod 8, a second telescopic rod 9 and a connecting piece 18; the inner diameter of the first fixed half ring 5 and the inner diameter of the second fixed half ring 6 are both matched with the outer diameter of the bridge pile foundation 3, the first fixed half ring 5 is positioned above the second fixed half ring 6, the first fixed half ring 5 is connected with the second fixed half ring 6 through a telescopic plate 7, two groups of first telescopic rods 8 are symmetrically arranged on the arc-shaped outer wall of the first fixed half ring 5 and are movably connected with one end of the first telescopic rods 8, and two groups of second telescopic rods 9 are symmetrically arranged on the arc-shaped outer wall of the second fixed half ring 6 and are movably connected with one end of the second telescopic rods 9;
the other end of first telescopic link 8 and the other end of second telescopic link 9 swing joint respectively have connecting piece 18, connecting piece 18 is connected with the plug of second fixed plate 22, the bottom of second fixed semi-ring 6 is installed through the bolt and is inserted floor 15, it is the sector plate to insert floor 15, and insert and be provided with the sharp piece 16 of multiunit on the outer wall on floor 15, sharp piece 16 is the barb structure, insert floor 15 and insert the sharp piece 16 on floor 15 and improved greatly and the riverbed firmness between 1, thereby the firm performance of stability of reinforcing apparatus on the bridge pile foundation 3 has been improved.
The first fixed half ring 5 and the second fixed half ring 6 are symmetrically arranged along the bridge pile foundation 3, the two ends of the first fixed half ring 5 and the two ends of the second fixed half ring 6 are respectively provided with a connecting lug 12, the connecting lugs 12 of the two groups of first fixed half rings 5 are fixedly connected through a connecting bolt, and the connecting lugs 12 of the two groups of second fixed half rings 6 are fixedly connected through a connecting bolt.
The expansion plate 7 comprises a movable plate 13, a fixed sleeve plate 14, the movable plate 13 and the fixed sleeve plate 14 are both connected with an arc plate, the inner wall of the fixed sleeve plate 14 is abutted to the outer wall of the bridge pile foundation 3, the bottom end of the fixed sleeve plate 14 is mounted on the second fixed half ring 6, the bottom end of the movable plate 13 penetrates into the inner cavity of the fixed sleeve plate 14 and is connected with the fixed sleeve plate 14 in a sliding mode, the top end of the movable plate 13 is connected with the first fixed half ring 5, a first threaded hole matched with a first fastening bolt is formed in the outer wall of the fixed sleeve plate 14, and the first fastening bolt is abutted to the outer wall of the movable plate 13.
The connecting piece 18 comprises a first fixing plate 19 and an inserting plate 20, the other end of the first telescopic rod 8 and the other end of the second telescopic rod 9 are respectively movably connected with the first fixing plate 19, four groups of inserting plates 20 are arranged on the bottom surface of the first fixing plate 19, and pin holes 21 are formed in the side walls of the inserting plates 20.
The first telescopic rod 8 and the second telescopic rod 9 have the same structure and both comprise a movable rod 10 and a movable tube 11; one end of the movable rod 10 is movably connected with the corresponding first stationary half ring 5 and second stationary half ring 6, the other end of the movable rod 10 penetrates into the inner cavity of the movable tube 11, and is connected with the movable tube 11 in a sliding way, the other end of the movable rod 10 is connected with a first fixed plate 19 on a connecting piece 18, a second threaded hole matched with a second fastening bolt is arranged on the outer wall of the movable tube 11, the second fastening bolt is abutted against the outer wall of the movable rod 10, and through the matching among the expansion plate 7, the first expansion link 8 and the second expansion link 9, the position of the fixed reinforcement can be adjusted according to the height of the bridge pile foundation 3, the best fixed position is selected, the problems in the prior art are solved, the reinforcing apparatus is usually fixed to the fixed position of strengthening of bridge pile foundation 3, is difficult to adjust, leads to not being applicable to the bridge pile foundation 3 of difference and consolidates and can not look for the problem of best reinforcement position.
The eight groups of second fixing plates 22 are annularly arranged around the center of the fixed base plate 2, the four groups of second fixing plates 22 and the other four groups of second fixing plates 22 are both located on the radius of the fixed base plate 2, and the distance between the four groups of second fixing plates 22 and the bridge pile foundation 3 is greater than the distance between the other four groups of second fixing plates 22 and the bridge pile foundation 3.
The second fixing plate 22 is provided with a jack 23 matched with the plug board 20 on the first fixing plate 19, and the second fixing plate 22 is internally provided with a plug-pull assembly for fixing the first fixing plate 19;
the flashboard assembly comprises an operating rod 24, an operating handle 25, a limiting plate 26, a pin shaft 27, a movable shaft 28, a sleeve 29, a fixed cylinder 30, a spring 31 and a sliding plate 32; one end of the operating rod 24 extends to the inner cavity of the second fixing plate 22 and is slidably connected with the second fixing plate 22, two sets of sleeves 29 are respectively sleeved on the outer wall of the operating rod 24 for connection, four sets of limiting plates 26 are arranged in the second fixing plate 22, the limiting plates 26 are located on one side of the insertion holes 23, pin shafts 27 matched with the pin holes 21 in the insertion plate 20 are slidably mounted on the side walls of the limiting plates 26, one end of the movable shaft 28 is movably connected with the sleeves 29, and the other end of the movable shaft 28 is movably connected with the pin shafts 27.
One end of the operating rod 24 is connected with the sliding plate 32, the sliding plate 32 is located in the fixed cylinder 30, and with the inner wall sliding connection of the fixed cylinder 30, and be connected through the spring 31 between the inner wall of the sliding plate 32 and the fixed cylinder 30, the fixed cylinder 30 is installed on the inner wall of the second fixed plate 22, the other end of the operating rod 24 is connected with the operating handle 25, through the picture peg subassembly that sets up in the second fixed plate 22 on the fixed baseplate 2, the installation to the reinforced structure 4 is convenient, solve prior art, the reinforced structure is in the installation, need to support the bolt of a lot of groups to work, and the fastening work of these bolts is the problem that extremely consumes manpower and material resources.
A construction method of a bridge pile foundation structure comprises the following steps:
s1, after the bridge pile foundation 3 is poured and formed on the river bed 1, firstly, the length of the expansion plate 7 is adjusted according to the height of the bridge pile foundation 3, the distance between the first fixed half ring 5 and the second fixed half ring 6 is changed, then, the first fixed half ring 5 is tightly sleeved on the outer wall of the bridge pile foundation 3 through a connecting bolt, the second fixed half ring 6 is tightly sleeved on the lower portion of the outer wall of the bridge pile foundation 3, the floor inserting plate 15 is inserted into a floor inserting plate groove reserved in the river bed 1, and concrete is used for pouring;
s2, adjusting the lengths of the first and second telescopic rods 8, 9 and fixing them, then pressing the operating handle 25 inward to slide the operating rod 24, and moving the pin 27 along the position-limiting plate 26 in the direction away from the insertion hole 23 under the connecting action of the movable shaft 28 through the sleeve 29 sleeved on the operating rod 24, meanwhile, when pressing the operating handle 25, the sliding plate 32 slides along the inner wall of the fixed cylinder 30 and the spring 31 is in a compressed state, the insertion plates 20 on the first fixed plate 19 connecting the first and second telescopic rods 8, 9 are inserted into the insertion holes 23 of the second fixed plate 22, respectively, the external force of the operating handle 25 is released, and the pin 27 is restored and inserted into the pin holes 21 on the insertion plates 20 under the restoring force of the spring 31, thereby completing the reinforcing work of the bridge pile foundation 3.
The working principle of the invention is as follows: after the bridge pile foundation 3 is poured and formed on the river bed 1, firstly, the length of a telescopic plate 7 is adjusted according to the height of the bridge pile foundation 3, the distance between a first fixed half ring 5 and a second fixed half ring 6 is changed, then, the first fixed half ring 5 is tightly sleeved on the outer wall of the bridge pile foundation 3 through a connecting bolt, the second fixed half ring 6 is tightly sleeved on the lower portion of the outer wall of the bridge pile foundation 3, and a floor inserting plate 15 is inserted into a floor inserting plate groove reserved in the river bed 1 and is poured by concrete; through the matching among the expansion plate 7, the first expansion link 8 and the second expansion link 9, the position of fixed reinforcement can be adjusted according to the height of the bridge pile foundation 3, and the optimal fixed position is selected, so that the problems that in the prior art, the position of fixed reinforcement of the bridge pile foundation 3 is usually fixed by a reinforcement device, the reinforcement device is not easy to adjust, and the reinforcement device is not suitable for reinforcing different bridge pile foundations 3 and cannot find the optimal reinforcement position are solved; the inserting floor 15 and the pointed blocks 16 on the inserting floor 15 greatly improve the firmness with the river bed 1, so that the stable firmness of the reinforcing device on the bridge pile foundation 3 is improved;
adjusting the lengths of the first and second telescopic rods 8 and 9 and fixing them, then, pressing the operating handle 25 inwards to make the operating rod 24 slide, and through the sleeve 29 sleeved on the operating rod 24, making the pin 27 move along the limiting plate 26 in the direction away from the insertion hole 23 under the connecting action of the movable shaft 28, meanwhile, when pressing the operating handle 25, the sliding plate 32 slides along the inner wall of the fixed cylinder 30 and makes the spring 31 in a compressed state, the insertion plates 20 on the first fixed plate 19 connecting the first and second telescopic rods 8 and 9 are inserted into the insertion holes 23 of the second fixed plate 22 correspondingly, respectively, releasing the external force of the operating handle 25, and under the restoring force of the spring 31, making the pin 27 reset and inserted into the pin holes 21 on the insertion plates 20, thereby completing the reinforcing work for the bridge pile foundation 3, by the insertion plate assembly arranged in the second fixed plate 22 on the fixed base plate 2, the installation of the reinforced structure 4 is convenient, and the problem that in the prior art, a plurality of groups of bolts are required to be matched to work in the installation process of the reinforced structure, and the fastening work of the bolts consumes manpower and material resources extremely is solved; in addition, the reinforcing structure 4 solves the problems that in the prior art, due to the influence of water flow near the bridge pile foundation, hydrodynamic characteristics near the pile foundation are complex, and due to the scouring effect of the water flow on the bridge pile foundation, the stability of a single pile or a pile group of the bridge is reduced due to the scouring effect as time goes on, so that the structure of the bridge pile foundation is damaged, the whole bridge has potential safety hazards, the common diseases of the bridge pile foundation mainly have two types, the effective pile length is reduced due to the riverbed scouring, the bearing capacity of the pile foundation is insufficient, and the section strength of the pile body is insufficient due to the defect of the section quality of the pile body.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. A bridge pile foundation structure is characterized in that: comprises a riverbed (1), a bridge pile foundation (3) and a reinforced structure (4);
the river bed (1) is vertically provided with a bridge pile foundation (3), the fixed base plate (2) is installed on the top surface of the river bed (1) through a ground bolt (17), the fixed base plate (2) is of an annular structure, the circle center position of the fixed base plate (2) is located at the center position of the bridge pile foundation (3), eight groups of second fixed plates (22) are arranged on the top surface of the fixed base plate (2), and the outer wall of the bridge pile foundation (3) is provided with a reinforcing structure (4) and connected with the second fixed plates (22) on the fixed base plate (2) through the reinforcing structure (4);
the reinforcing structure (4) is symmetrically arranged along the vertical plane of the center of the bridge pile foundation (3), and the reinforcing structure (4) comprises a first fixed half ring (5), a second fixed half ring (6), a telescopic plate (7), a first telescopic rod (8), a second telescopic rod (9) and a connecting piece (18); the inner diameter of the first fixed semi-ring (5) and the inner diameter of the second fixed semi-ring (6) are matched with the outer diameter of the bridge pile foundation (3), the first fixed semi-ring (5) is positioned above the second fixed semi-ring (6), the first fixed semi-ring (5) is connected with the second fixed semi-ring (6) through a telescopic plate (7), two groups of first telescopic rods (8) are symmetrically arranged on the arc-shaped outer wall of the first fixed semi-ring (5) and movably connected with one end of each first telescopic rod (8), two groups of second telescopic rods (9) are symmetrically arranged on the arc-shaped outer wall of the second fixed semi-ring (6) and movably connected with one end of each second telescopic rod (9);
the other end of first telescopic link (8) and the other end of second telescopic link (9) swing joint respectively have connecting piece (18), and connecting piece (18) are connected with second fixed plate (22) plug, and the bottom of second fixed semi-ring (6) is installed through the bolt and is inserted floor (15), inserts floor (15) and be the sector plate, and insert and be provided with sharp piece (16) of multiunit on the outer wall on floor (15), and sharp piece (16) are barb structure.
2. A bridge pile foundation structure according to claim 1, wherein the first stationary half ring (5) and the second stationary half ring (6) are symmetrically arranged along the bridge pile foundation (3), the first stationary half ring (5) and the second stationary half ring (6) are provided with engaging lugs (12) at both ends thereof, the engaging lugs (12) of the first stationary half ring (5) of the two sets are fixedly connected with each other by connecting bolts, and the engaging lugs (12) of the second stationary half ring (6) of the two sets are fixedly connected with each other by connecting bolts.
3. The bridge pile foundation structure of claim 1, wherein the expansion plate (7) comprises a movable plate (13) and a fixed sleeve plate (14), the movable plate (13) and the fixed sleeve plate (14) are both connected with the arc-shaped plate, the inner wall of the fixed sleeve plate (14) is abutted with the outer wall of the bridge pile foundation (3), the bottom end of the fixed sleeve plate (14) is mounted on the second fixed half ring (6), the bottom end of the movable plate (13) penetrates into the inner cavity of the fixed sleeve plate (14) and is slidably connected with the fixed sleeve plate (14), the top end of the movable plate (13) is connected with the first fixed half ring (5), the outer wall of the fixed sleeve plate (14) is provided with a first threaded hole matched with a first fastening bolt, and the first fastening bolt is abutted with the outer wall of the movable plate (13).
4. A bridge pile foundation structure according to claim 1, wherein the connecting member (18) comprises a first fixing plate (19) and an inserting plate (20), the other end of the first telescopic rod (8) and the other end of the second telescopic rod (9) are movably connected with the first fixing plate (19) respectively, four groups of inserting plates (20) are arranged on the bottom surface of the first fixing plate (19), and pin holes (21) are arranged on the side walls of the inserting plates (20).
5. A bridge pile foundation structure according to claim 1, wherein the first telescopic rod (8) and the second telescopic rod (9) are identical in structure and each comprise a movable rod (10) and a movable pipe (11); the one end of movable rod (10) respectively with first stationary half ring (5) and the second stationary half ring (6) swing joint that corresponds, the inner chamber of activity pipe (11) is penetrated to the other end of movable rod (10), and with activity pipe (11) sliding connection, the other end of movable rod (10) is connected with first fixed plate (19) on connecting piece (18), be provided with the second screw hole with second fastening bolt looks adaptation on the outer wall of activity pipe (11), the outer wall butt of second fastening bolt and activity rod (10).
6. A bridge pile foundation structure according to claim 1, wherein eight groups of the second fixing plates (22) are annularly arranged at the center of the fixed base plate (2), four groups of the second fixing plates (22) and four other groups of the second fixing plates (22) are located on the radius of the fixed base plate (2), and the distance between the four groups of the second fixing plates (22) and the bridge pile foundation (3) is greater than the distance between the four groups of the second fixing plates (22) and the bridge pile foundation (3).
7. A bridge pile foundation structure according to claim 1, wherein the second fixing plate (22) is provided with a jack (23) matched with the inserting plate (20) on the first fixing plate (19), and the second fixing plate (22) is provided with a plug-in component for fixing the first fixing plate (19);
the flashboard assembly comprises an operating rod (24), an operating handle (25), a limiting plate (26), a pin shaft (27), a movable shaft (28), a sleeve (29), a fixed cylinder (30), a spring (31) and a sliding plate (32); one end of action bars (24) extends to the inner chamber of second fixed plate (22), and with second fixed plate (22) sliding connection, the cover is equipped with two sets of sleeve pipe (29) respectively on the outer wall of action bars (24) and connects, be provided with limiting plate (26) of four groups in second fixed plate (22), limiting plate (26) are located one side of jack (23), and slidable mounting has round pin axle (27) with pinhole (21) looks adaptation on picture peg (20) on the lateral wall of limiting plate (26), the one end and sleeve pipe (29) swing joint of loose axle (28), the other end and round pin axle (27) swing joint of loose axle (28).
8. A bridge pile foundation structure according to claim 7, wherein one end of the operation rod (24) is connected with a sliding plate (32), the sliding plate (32) is positioned in the fixed cylinder (30) and is slidably connected with the inner wall of the fixed cylinder (30), the sliding plate (32) is connected with the inner wall of the fixed cylinder (30) through a spring (31), the fixed cylinder (30) is installed on the inner wall of the second fixed plate (22), and the other end of the operation rod (24) is connected with the operation handle (25).
9. A construction method of a bridge pile foundation structure according to any one of claims 1 to 8, wherein the construction method of the bridge pile foundation structure comprises the steps of:
s1, pouring the bridge pile foundation (3) on the river bed (1) and forming, firstly adjusting the length of the expansion plate (7) according to the height of the bridge pile foundation (3), changing the distance between the first fixed half ring (5) and the second fixed half ring (6), then tightly sleeving the first fixed half ring (5) on the outer wall of the bridge pile foundation (3) through a connecting bolt, tightly sleeving the second fixed half ring (6) below the outer wall of the bridge pile foundation (3), inserting the floor inserting plate (15) into a floor inserting groove reserved in the river bed (1), and pouring by using concrete;
s2, adjusting the lengths of the first telescopic rod (8) and the second telescopic rod (9) and fixing the same, then pressing the operating handle (25) inwards to enable the operating rod (24) to slide, enabling the pin shaft (27) to move along the limiting plate (26) to the direction far away from the insertion hole (23) under the connecting action of the movable shaft (28) through the sleeve (29) sleeved on the operating rod (24), meanwhile, when the operating handle (25) is pressed, the sliding plate (32) slides along the inner wall of the fixed cylinder (30) and enables the spring (31) to be in a compressed state, inserting the insertion plates (20) on the first fixed plate (19) connected with the first telescopic rod (8) and the second telescopic rod (9) into the insertion holes (23) of the second fixed plate (22) correspondingly respectively, releasing the external force of the operating handle (25), and enabling the pin shaft (27) to reset and be inserted into the pin holes (21) on the insertion plates (20) under the restoring force of the spring (31), thereby, the reinforcing work of the bridge pile foundation (3) is completed.
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| CN202010905698.7A CN112064634B (en) | 2020-09-01 | 2020-09-01 | Bridge pile foundation structure and construction method thereof |
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| CN202010905698.7A CN112064634B (en) | 2020-09-01 | 2020-09-01 | Bridge pile foundation structure and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481832A (en) * | 2021-07-09 | 2021-10-08 | 湖北中广公路勘察设计有限公司 | Highway bridge pile foundation reinforcing apparatus |
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| CN209907418U (en) * | 2019-04-18 | 2020-01-07 | 许智勇 | Highway bridge pile foundation reinforcing apparatus |
| CN210439350U (en) * | 2019-08-22 | 2020-05-01 | 郭建峰 | Bridge foundation pile reinforcing apparatus |
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| CN207079645U (en) * | 2017-07-03 | 2018-03-09 | 深圳市孺子牛建设工程有限公司 | A kind of Road Bridge Pile Foundation bracing means |
| CN209907418U (en) * | 2019-04-18 | 2020-01-07 | 许智勇 | Highway bridge pile foundation reinforcing apparatus |
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