Method for synchronous construction of shallow water trestle distribution beam and steel pipe pile

Abstract

The application discloses a method for synchronous construction of a trestle distribution beam and a steel pipe pile in a shallow water area, and comprises the following steps: setting a bridge abutment at a bank slope; using a floating body platform to set a first group of steel pipe piles of a to-be-constructed trestle in the shallow water area, using a crane to successively hoist distribution beams and lay bridge deck slabs between the top of the first group of steel pipe piles and the bridge abutment at the bank slope, so as to form a first section of the trestle; using the floating body platform to successively set each group of steel pipe piles, and using the crane to hoist a distribution beam and lay a bridge deck slab on the top of two adjacent groups of steel pipe piles after setting each group of steel pipe piles; and the above steps are repeated until the construction of the whole trestle is completed. The method has the advantages that the steel pipe piles are set in the shallow water area by using the floating body platform with a large crane arm, the distribution beam and the bridge deck slab are erected by using the crane on the trestle, synchronous construction is realized, the situation that the steel pipe piles are set by using the crane on the trestle in the prior art is avoided, the amount of structural steel of the trestle is reduced, and the specification of the crane is reduced.

Description

Technical Field

[0001] This invention belongs to the field of trestle construction technology, specifically relating to a method for the simultaneous construction of trestle distribution beams and steel pipe piles in shallow water areas. Background Technology

[0002] The construction of temporary piers in shallow water areas is often affected by the aquatic environment. Currently, the main methods used for construction in shallow water areas are piling boats and fishing.

[0003] However, traditional methods face some insurmountable challenges when constructing in shallow waters: on the one hand, the water level in shallow waters is low, and ships are prone to running aground, affecting the progress of the piling vessel and even reducing the safety of construction; on the other hand, shallow waters are easily affected by the ebb and flow of tides, requiring reasonable organization of entry into the site in advance, which limits the effective working time of the piling vessel and prolongs the construction period.

[0004] It is evident that traditional construction methods, such as piling boats, are greatly affected by the aquatic environment in shallow water areas, increasing construction costs, extending the construction period, and reducing construction safety for trestle bridges located in large shallow water areas. Therefore, there is an urgent need for an innovative steel trestle bridge construction method suitable for shallow water areas to solve these problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of the prior art by providing a method for the simultaneous construction of the distribution beam and steel pipe piles of a trestle bridge in shallow water. This method utilizes a floating platform to drive steel pipe piles in shallow water and uses a crane on the trestle bridge to erect the distribution beam and bridge deck, thereby achieving simultaneous construction of both and improving the construction efficiency of the trestle bridge.

[0006] The objective of this invention is achieved through the following technical solutions:

[0007] A method for simultaneous construction of the distribution beam and steel pipe piles of a trestle bridge in shallow water areas, characterized by the following steps:

[0008] (1) Set up a bridge abutment on the bank slope and move the crane to the bank slope for positioning;

[0009] (2) In shallow water, the first set of steel pipe piles of the trestle bridge to be constructed is driven using a floating platform. The distribution beams are hoisted and the bridge deck is laid between the top of the first set of steel pipe piles and the bridge abutment on the bank slope using the crane to form the first segment of the trestle bridge. The crane is moved to the first segment of the trestle bridge.

[0010] (3) using the floating body platform along the design path of the trestle to successively set each group of steel pipe piles, in the process of setting the steel pipe piles, after setting each group of the steel pipe piles, the crane on the trestle segment hoists the distribution beam on the top of the adjacent two groups of the steel pipe piles to install and pave the bridge deck; so reciprocate until the construction of the whole trestle is completed.

[0011] The floating body platform is provided with a positioning support structure, and after the floating body platform moves to the position to be piled, the floating body platform is fixed in the shallow water position through the positioning support structure.

[0012] The middle part of the floating body platform is provided with a large hoisting mechanical arm; the front part of the floating body platform is provided with a connection system operation platform, and the front end face of the connection system operation platform is provided with a sleeve type guide frame connection system; the floating body platform is further provided with a storage platform.

[0013] The sleeve type guide frame connection system is composed of two sleeves separately arranged at the front end of the upper surface of the connection system operation platform and a connection beam connecting the two sleeves.

[0014] The positioning support structure comprises at least four through holes separately arranged on both sides of the floating body platform and a support rod penetrating through the through holes, and a limiting piece is welded and fixed to the upper part of the support rod; after the support rod is inserted into the through hole, the floating body platform is supported and positioned by inserting the support rod into the designed depth of the seabed using the large hoisting mechanical arm.

[0015] The storage platform is arranged between the connection system operation platform and the large hoisting mechanical arm.

[0016] The storage platform is arranged on both sides of the large hoisting mechanical arm, and the storage platform comprises a steel pipe pile storage support, a lifting type erection groove and a slope rail connecting the steel pipe pile storage support and the lifting type erection groove; the steel pipe pile stored on the steel pipe pile storage support slides to the lifting type erection groove through the slope rail under the poking of the large hoisting mechanical arm, the lifting type erection groove comprises a base plate, a U-shaped groove and a lifting rod, the front end of the U-shaped groove is hinged to the base plate, and the rear end is driven to lift by the lifting rod, the lower end of the lifting rod is hinged to the base plate, and the upper end is slidingly hinged to the bottom surface of the U-shaped groove; the front end of the U-shaped groove points to the upper end of the sleeve.

[0017] The front port of the U-shaped groove is provided with a ring of limiting claw petals, and the back of the limiting claw petals is connected with the wall surface of the U-shaped groove through a spring. When the steel pipe pile slides into the lifting type erection groove, the rear end of the U-shaped groove is driven to rise by the lifting rod, so that the U-shaped groove reaches a vertical state. At this time, the lower end of the steel pipe pile abuts against and is supported by the limiting claw petals. The upper end of the steel pipe pile is clamped by the large hoisting mechanical arm, and a downward pressure is provided, so that the steel pipe pile breaks through the limitation of the limiting claw petals and enters the sleeve, until it is pressed down to the designed depth.

[0018] The two sides of the floating body platform are provided with longitudinal sliding rails, and the base plate is matched and installed on the longitudinal sliding rails. After the support rod is moved into the U-shaped groove, the front end of the U-shaped groove is aligned with the through hole under the guidance of the longitudinal sliding rails. The rear end of the U-shaped groove is driven to rise by the lifting rod, so that the U-shaped groove reaches a vertical state. At this time, the lower end of the support rod abuts against and is supported by the limiting claw petals. The upper end of the support rod is clamped by the large hoisting mechanical arm, and a downward pressure is provided, so that the support rod breaks through the limitation of the limiting claw petals and enters the through hole, until it is pressed down to the designed depth.

[0019] The advantages of the present application are:

[0020] (1) The floating body platform with a large hoisting mechanical arm is used to drive the steel pipe pile in the shallow water area, and the crane on the trestle is used to erect the distribution beam and the bridge deck, so that the synchronous construction is realized, the construction efficiency of the trestle is improved, and the construction speed is increased by 2-3 times compared with the traditional fishing method.

[0021] (2) The large hoisting mechanical arm on the floating body platform is used to drive the steel pipe pile, so that the situation of driving the steel pipe pile through the crane on the trestle is avoided, the amount of structural steel of the trestle is reduced, the construction cost is reduced, the crawler crane can be reduced from the traditional 70-80t type to 50t type, the removal difficulty is reduced, and the span of the trestle can be effectively increased.

[0022] (3) The new equipment can ensure the position and perpendicularity of the pile. The large hoisting mechanical arm has relatively large lifting force when inserting or pulling out the steel pipe pile, and can effectively insert and pull out the pile.

[0023] (4) The construction speed of the shallow water area trestle construction operation is stable, and the influence of environmental factors (such as sea wind, water flow, and tidal fluctuation) is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram A of the synchronous construction of the distribution beam and the steel pipe pile of the shallow water area trestle in embodiment 1 of the present application.

[0025] Figure 2This is Schematic diagram B of the synchronous construction of the shallow water trestle distribution beam and steel pipe piles in Embodiment 1 of the present invention;

[0026] Figure 3 This is a schematic diagram of the planar layout of the floating platform in Embodiment 1 of the present invention;

[0027] Figure 4 This is a side view of the floating platform in Embodiment 1 of the present invention;

[0028] Figure 5 This is Schematic diagram A of the simultaneous construction of the distribution beam and steel pipe piles of the shallow water trestle bridge in Embodiment 2 of the present invention;

[0029] Figure 6 This is Schematic diagram B of the synchronous construction of the shallow water trestle distribution beam and steel pipe piles in Embodiment 2 of the present invention;

[0030] Figure 7 This is a schematic diagram of the planar layout of the floating platform in Embodiment 2 of the present invention;

[0031] Figure 8 This is an end view of the floating platform in Embodiment 2 of the present invention;

[0032] Figure 9 For the present invention Figure 8 Enlarged view of the steel pipe pile storage support and lifting erection trough in the image;

[0033] Figure 10 This is a schematic diagram showing the state changes of the lifting support trough in Embodiment 2 of the present invention;

[0034] Figure 11 This is a schematic diagram of the U-shaped groove in Embodiment 2 of the present invention. Detailed Implementation

[0035] The features and other related features of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments, so as to facilitate understanding by those skilled in the art:

[0036] like Figures 1-11 The markings in the diagram are as follows: 1. Bridge abutment; 2. Bridge deck; 3. Distribution beam; 4. Crane; 5. Steel pipe pile; 6. Large crane boom; 7. Support rod; 8. Floating platform; 9. Storage platform; 10. Sleeve; 11. Connecting beam; 12. Limiting component; 13. Through hole; 14. Steel pipe pile storage bracket; 15. Slope rail; 16. U-shaped groove; 17. Lifting rod; 18. Base plate; 19. Longitudinal slide rail; 20. Lifting rod; 21. Support plate; 22. Spring; 23. Limiting claw flap.

[0037] Example 1: As Figure 1 , 2 As shown in Figures 3 and 4, this embodiment specifically relates to a method for the simultaneous construction of the distribution beam and steel pipe piles of a trestle bridge in shallow water. This construction method includes the following steps:

[0038] (1) Set up the abutment 1 at the bank slope, move the crane 4 to the bank slope, and move the floating platform 8 to the predetermined position in the shallow water area.

[0039] The main body of the floating platform 8 in this embodiment is rectangular, and a large hoisting mechanical arm 6 is arranged in the middle. A mooring system operation platform is arranged on the front end face of the floating platform 8. The mooring system operation platform is a mooring system of a sleeve guide frame fixed on the front end face of the floating platform 8, which includes two sleeves 10 and a connecting beam 11 connecting the two sleeves 10, and the sleeves 10 are used for guiding when the steel pipe pile 5 is inserted and driven. A storage platform 9 is arranged between the large hoisting mechanical arm 6 and the mooring system operation platform of the floating platform 8. The storage platform 9 can be a groove structure or a high platform structure, and the steel pipe pile 5 is stored thereon. The large hoisting mechanical arm 6 is a clamping type mechanical arm, and the working area thereof can be extended to above the mooring system operation platform to realize the insertion and pulling of the steel pipe pile 5 or the support rod 7. A vertical observation instrument is further arranged on the large hoisting mechanical arm 6, which can ensure that the steel pipe pile 5 is vertically sunk when it is gripped.

[0040] The floating platform 8 is further provided with a positioning and supporting structure to realize the position fixing of the floating platform 8 when the pile is sunk and the support of the floating platform 8. The positioning and supporting structure includes at least four through holes 13 arranged on the front and back of the two sides of the floating platform 8 and a support rod 7 penetrating through the through holes 13. The upper end of the support rod 7 is provided with a limiting piece 12 to limit the maximum insertion depth of the support rod 7. In the initial state or the moving state of the floating platform 8, the support rod 7 is placed on the floating platform 8. When the positioning and support of the floating platform 8 is needed, the large hoisting mechanical arm 6 is used to insert the support rod 7 into the designed depth of the seabed to position and support the floating platform 8.

[0041] (2) Before the construction, the positioning and support of the floating platform 8 is realized by using the positioning and supporting structure on the floating platform 8, that is, the large hoisting mechanical arm 6 is used to insert the support rod 7 into the designed depth of the seabed through the through holes 13 on the floating platform 8 to position and support the floating platform 8.

[0042] In the shallow water area, the first group of steel pipe piles of the to-be-constructed trestle are inserted by using the large hoisting mechanical arm 6 on the floating platform 8, that is, the large hoisting mechanical arm 6 is used to pick up the steel pipe piles 5 from the storage platform 9, move to the top of the corresponding sleeve 10, and then be inserted downward under the guidance of the sleeve 10 until the designed depth, and in this way, the insertion of two steel pipe piles 5 is realized; after the insertion of the first group of steel pipe piles 5 is completed, a prefabricated distribution beam 3 is hoisted by using the crane 4 located on the bank slope for installation, one end of the distribution beam 3 is supported on the abutment 1, and the other end is supported on the first group of steel pipe piles 5, and then the bridge deck slab 2 is paved on the distribution beam 3, so that the construction of the first segment of the trestle is completed, and then the crane 4 is moved to the first segment of the trestle that is completed to be erected.

[0043] (3) The upper end of the support rod 7 is clamped and pulled up by using the large hoisting mechanical arm 6 on the floating platform 8, so as to release the positioning support of the floating platform 8; then the floating platform 8 is moved to the insertion position of the second group of steel pipe piles 5, and the floating platform 8 is supported and positioned again by the positioning support structure, the insertion of the second group of steel pipe piles 5 is completed by using the large hoisting mechanical arm 6 according to the method in step (2); after the insertion of the second group of steel pipe piles 5 is completed, the distribution beam 3 is hoisted by using the crane 4 located on the first segment of the trestle for installation, one end of the distribution beam 3 is supported on the first group of steel pipe piles 5, and the other end is supported on the second group of steel pipe piles 5, and then the bridge deck slab 2 is paved on the distribution beam 3, so that the construction of the second segment of the trestle is completed. In this way, the reciprocating construction is carried out until the construction of the entire trestle is completed. That is, after the floating platform 8 completes the insertion of one group of steel pipe piles 5, the distribution beam 3 and the bridge deck slab 2 are installed between the two groups of steel pipe piles 5 by using the crane 4 located on the trestle.

[0044] It should be noted that the floating platform 8 in the embodiment is provided with a driving device, including a propeller that can drive it to move in the water body and a caterpillar device (not shown in the figure) that can drive it to move in the shoal area or the reef area, as shown in Figure 1 When the floating platform 8 moves in the water body in the shallow water area, the propeller is used as the power; as shown in Figure 2 When moving in the shoal area or the reef area in the shallow water area, the caterpillar device and the propeller are used in combination to adapt to various working conditions in the shallow water area.

[0045] The beneficial effects of the embodiment are as follows:

[0046] (1) The steel pipe piles are inserted in the shallow water area by using the floating platform with the large hoisting mechanical arm, and the distribution beam and the bridge deck slab are erected by using the crane on the trestle, so as to realize the synchronous construction and improve the construction efficiency of the trestle, and compared with the traditional fishing method, the construction speed is increased by 2-3 times;

[0047] (2) Using the large crane arm on the floating platform to drive steel pipe piles can avoid the previous situation of driving steel pipe piles by crane on the trestle bridge, thereby reducing the amount of steel used in the trestle bridge structure, reducing construction costs, and reducing the crawler crane from the traditional 70-80t type to the 50t type. At the same time, it reduces the difficulty of removal and can effectively increase the span of the trestle bridge.

[0048] (3) This new equipment can ensure the position and verticality of the pile; it adopts a large crane arm, which has a relatively large lifting force when driving or pulling steel pipe piles, and can effectively drive or pull piles.

[0049] (4) It reduces the impact of environmental factors (such as sea breeze, water flow, and tides) on the construction of trestle bridges in shallow water areas, and stabilizes the construction speed.

[0050] Example 2: As Figures 5-11 As shown, this embodiment specifically relates to a method for the simultaneous construction of the distribution beam and steel pipe piles of a trestle bridge in shallow water areas. The method includes the following steps:

[0051] (1) Set up a bridge abutment 1 on the bank slope, move the crane 4 to the bank slope and place it in place, and move the floating platform 8 to the predetermined position in the shallow water area.

[0052] In this embodiment, the main body of the floating platform 8 is rectangular, with a large crane arm 6 located in its middle. A connecting system working platform is located on the front end face of the floating platform 8. This connecting system working platform is a sleeve-type guide frame connecting system fixed to the front end face of the floating platform 8, including two sleeves 10 and a connecting beam 11 connecting the two sleeves 10. The sleeves 10 are used for guidance during the driving of the steel pipe piles 5. Storage platforms are arranged on both sides of the floating platform 8. These storage platforms include steel pipe pile storage supports 14, ramp rails 15, and lifting erection slots, such as... Figure 7 , 8As shown in FIG. 9, the bottom of the steel pipe pile storage support 14 is provided with two groups of lifting rods 20, and the upper end of the lifting rod 20 is fixedly provided with a support plate 21. The storage space of the steel pipe pile 5 is formed under the common enclosure of the outer wall surface of the steel pipe pile storage support 14 and the support plate 21. In order to facilitate the sliding out of the steel pipe pile 5, the upper part of the shell of the steel pipe pile storage support 14 is in a slope shape. The slope rail 15 is arranged between the steel pipe pile storage support 14 and the U-shaped groove 16 of the lifting type erection groove, and is used for transporting the steel pipe pile 5 in the steel pipe pile storage support 14 into the U-shaped groove 16 by means of gravitational potential energy. The lifting type erection groove includes the U-shaped groove 16, the lifting rod 17 and the base plate 18 arranged in sequence from top to bottom. The front end of the U-shaped groove 16 is hinged to the base plate 18, and the rear end is driven to lift by the lifting rod 17. The lower end of the lifting rod 17 is hinged to the base plate 18, and the upper end is slidingly hinged to the bottom surface of the U-shaped groove 16. The front end of the U-shaped groove 16 points to the sleeve 10 on the joint system operation platform. The base plate 18 is slidingly assembled on the longitudinal sliding rail 19. It should be noted that the front end of the U-shaped groove 16 is provided with a ring of limiting claw petals 23. The back surface of the limiting claw petals 23 is connected with the wall surface of the U-shaped groove 16 through the spring 22. The compression deformation force of the spring 22 is smaller than the gravity of the steel pipe pile 5. Only when the steel pipe pile 5 receives a downward pressure, the limiting claw petals 23 will compress the spring 22 to deform, so that the steel pipe pile 5 passes through.

[0053] Among them, the large hoisting mechanical arm 6 is a clamping type mechanical arm, and its working area can be extended to the upper side of the joint system operation platform, so as to realize the insertion and pulling of the steel pipe pile 5 or the support rod 7. The vertical observation instrument is arranged on the large hoisting mechanical arm 6, which can ensure that the steel pipe pile 5 is vertically sunk when it is laterally held.

[0054] The floating body platform 8 is also provided with a positioning support structure to realize the position fixing of the floating body platform 8 during pile sinking and the support of the floating body platform 8. The positioning support structure includes at least four through holes 13 arranged on the front and back of the two sides of the floating body platform 8 and the support rods 7 penetrating through the through holes 13. The upper end of the support rod 7 has a limiting piece 12 to limit the maximum insertion depth of the support rod 7. In the initial state or moving state of the floating body platform 8, the support rod 7 is placed on the floating body platform 8. When the positioning support of the floating body platform 8 is needed, the large hoisting mechanical arm 6 can be used to insert the support rod 7 into the designed depth of the seabed to position and support the floating body platform 8.

[0055] (2) Before construction, the positioning and supporting are carried out by using the positioning and supporting structure on the floating body platform 8, that is, the supporting rods 7 are also stored in the steel pipe pile storage support 14 in the initial state, the supporting plate 21 is jacked up by the lifting rod 20 to make the supporting rods 7 slide out of the steel pipe pile storage support 14, and then slide into the U-shaped groove 16 through the slope rail 15, the front end of the U-shaped groove 16 is longitudinally or transversely moved according to the setting position of the through hole 13 through the longitudinal slide rail 19 or the transverse slide rail (not shown in the figure, which is determined according to the actual situation) to be aligned with the through hole 13, and then the U-shaped groove 16 is jacked up to the vertical state by the lifting rod 17, at this time, the lower end of the supporting rod 7 abuts on the limiting claw 23 of the U-shaped groove 16 to make the supporting rod 17 keep the vertical state and not to fall, then the supporting rod 7 is clamped and pressed down by the large lifting mechanical arm 6, under the action of the pressing force, the lower end of the supporting rod 7 breaks through the limit of the limiting claw 23 and is inserted into the designed depth of the seabed through the through hole 13 on the floating body platform 8 to position and support the floating body platform 8.

[0056] In the shallow water area, the first group of steel pipe piles of the trestle to be constructed are inserted by using the large lifting mechanical arm 6 on the floating body platform 8, that is, the steel pipe pile 5 at the uppermost end is made to slide out of the steel pipe pile storage support 14 by jacking up the supporting plate 21 by the lifting rod 20, and then slides into the U-shaped groove 16 through the slope rail 15, the front end of the U-shaped groove 16 is aligned with the sleeve 10, then the U-shaped groove 16 is jacked up to the vertical state by the lifting rod 17, at this time, the lower end of the steel pipe pile 5 abuts on the limiting claw 23 of the U-shaped groove 16 to make the steel pipe pile 5 keep the vertical state and not to fall, then the steel pipe pile 5 is clamped and pressed down by the large lifting mechanical arm 6, under the action of the pressing force, the lower end of the steel pipe pile 5 breaks through the limit of the limiting claw 23 and enters the sleeve 10, until it is pressed down to the designed depth, in this way, the insertion of two steel pipe piles 5 is realized; after the insertion of the first group of steel pipe piles 5 is completed, a prefabricated distribution beam 3 is hoisted by the crane 4 on the shore slope to be installed, one end of the distribution beam 3 is supported on the abutment 1 and the other end is supported on the first group of steel pipe piles 5, then the bridge deck slab 2 is paved on the distribution beam 3, thereby the construction of the first segment of the trestle is completed, then the crane 4 is moved to the first segment of the trestle which is completed to be erected.

[0057] (3) the upper end of the support rod 7 is clamped and pulled up by the large hoisting mechanical arm 6 on the floating platform 8 to release the positioning support of the floating platform 8; then the floating platform 8 is moved to the driving position of the second group of steel pipe piles 5, and the floating platform 8 is supported and positioned again by the positioning support structure, and the driving of the second group of steel pipe piles 5 is completed by the large hoisting mechanical arm 6 according to the method in step (2); after the driving of the second group of steel pipe piles 5 is completed, the distribution beam 3 is hoisted and installed by the crane 4 on the first segment of the trestle, one end of the distribution beam 3 is supported on the first group of steel pipe piles 5, and the other end is supported on the second group of steel pipe piles 5, and then the bridge deck slab 2 is paved on the distribution beam 3, thereby completing the construction of the second segment of the trestle. The reciprocal construction is carried out in this way until the construction of the entire trestle is completed. That is, after the floating platform 8 completes the driving of a group of steel pipe piles 5, the installation of the distribution beam 3 and the bridge deck slab 2 between the two groups of steel pipe piles 5 is carried out by the crane 4 on the trestle.

[0058] It should be noted that the floating platform 8 in the embodiment is provided with a driving device, including a propeller that can drive it to move in the water body and a caterpillar device (not shown in the figure) that can drive it to move in the shoal area or the reef area, as shown in Figure 5 When the floating platform 8 moves in the water body in the shallow water area, the propeller is used as the power; as shown in Figure 6 When moving in the shoal area or the reef area in the shallow water area, the caterpillar device and the propeller are used in combination to adapt to various working conditions in the shallow water area.

[0059] The beneficial effects of the embodiment are as follows:

[0060] (1) the steel pipe piles are driven in the shallow water area by the floating platform with the large hoisting mechanical arm, and the distribution beam and the bridge deck slab are erected by the crane on the trestle to realize synchronous construction and improve the construction efficiency of the trestle, compared with the traditional fishing method, the construction speed is increased by 2-3 times;

[0061] (2) the steel pipe piles are driven by the large hoisting mechanical arm on the floating platform, which can avoid the situation of driving the steel pipe piles by the crane on the trestle, thereby reducing the amount of structural steel of the trestle and reducing the construction cost, the caterpillar crane can be reduced from the traditional 70-80t type to 50t type, and the removal difficulty is reduced, which can effectively increase the span of the trestle;

[0062] (3) the new equipment can ensure the position and perpendicularity of the piles; the large hoisting mechanical arm has relatively large pulling force when driving or pulling out the steel pipe piles, and can effectively drive or pull out the piles;

[0063] (4) the shallow water trestle construction is less affected by environmental factors (such as sea wind, water flow, and tidal fluctuation), and the construction speed is stable;

[0064] (5) The storage platform arranged on the floating platform can realize mass storage of the steel pipe piles and automatic alignment of the sleeves, which can facilitate direct insertion and driving of the large hoisting mechanical arm and avoid the disadvantages of repeated alignment of the large hoisting mechanical arm and reduction of construction efficiency.

Claims

1. A method for synchronous construction of a shallow water area trestle distribution beam and a steel pipe pile, characterized in that The method comprises the following steps: (1) setting up an abutment at the bank slope and moving a crane to the bank slope; (2) using a floating platform to set up a first group of steel pipe piles of the trestle to be constructed in the shallow water area, and using the crane to successively hoist distribution beams and pave bridge deck slabs between the top ends of the first group of steel pipe piles and the abutment at the bank slope to form a first section of the trestle, and moving the crane to the first section of the trestle; (3) using the floating platform to successively set up groups of steel pipe piles along the design path of the trestle, and during the setting up of the steel pipe piles, after setting up each group of steel pipe piles, the crane on the trestle section hoists and installs distribution beams on the top of the adjacent two groups of steel pipe piles and paves bridge deck slabs, and the process is repeated until the construction of the entire trestle is completed; The floating platform is provided with a positioning support structure, and after the floating platform is moved to the position to be set up with piles, the floating platform is fixed in position in the shallow water area by the positioning support structure; The middle part of the floating platform is provided with a large crane arm, and the front part of the floating platform is provided with a connection system operation platform, and the front end face of the connection system operation platform is provided with a sleeve type guide frame connection system; The sleeve type guide frame connection system is composed of two sleeves separately arranged at the front end of the upper surface of the connection system operation platform and a connection beam connecting the two sleeves; The positioning support structure comprises at least four through holes separately arranged on the two sides of the floating platform and a support rod penetrating through the through holes, and the upper part of the support rod is welded and fixed with a limiting piece, and after the support rod is inserted into the through hole, the floating platform is supported and positioned by inserting the support rod into the designed depth of the seabed by using the large crane arm; The storage platform is arranged between the connection system operation platform and the large crane arm; The storage platform is arranged on the two sides of the large crane arm, and the storage platform comprises a steel pipe pile storage support, a lifting type erection groove and a slope rail connecting the steel pipe pile storage support and the lifting type erection groove, the steel pipe piles stored in the steel pipe pile storage support are shifted to the lifting type erection groove through the slope rail under the pushing of the large crane arm, the lifting type erection groove comprises a base plate, a U-shaped groove and a lifting rod, the front end of the U-shaped groove is hinged to the base plate, and the rear end is driven to lift by the lifting rod, the lower end of the lifting rod is hinged to the base plate, and the upper end is slidingly hinged to the bottom surface of the U-shaped groove; the front end of the U-shaped groove points to the upper end of the sleeve. The front port of the U-shaped groove is provided with a ring of limiting claw petals, the back surface of the limiting claw petals and the wall surface of the U-shaped groove are connected through springs, when the steel pipe pile slides into the lifting type erecting groove, the rear end of the U-shaped groove is driven to rise by the lifting rod to make the U-shaped groove reach the vertical state, at this time the lower end of the steel pipe pile is supported on the limiting claw petals, the upper end of the steel pipe pile is clamped by the large hoisting mechanical arm and a downward pressure is provided to make the steel pipe pile break through the limitation of the limiting claw petals and enter into the sleeve until the designed depth is reached.

2. The method for synchronous construction of a shallow water area trestle distribution beam and a steel pipe pile according to claim 1, characterized in that The two sides of the floating body platform are provided with longitudinal slide rails, the base plate is matched and installed on the longitudinal slide rails, after the support rod is moved into the U-shaped groove, the front end of the U-shaped groove is aligned with the through hole under the guidance of the longitudinal slide rails, the rear end of the U-shaped groove is driven to rise by the lifting rod to make the U-shaped groove reach the vertical state, at this time the lower end of the support rod is supported on the limiting claw petals, the upper end of the support rod is clamped by the large hoisting mechanical arm and a downward pressure is provided to make the support rod break through the limitation of the limiting claw petals and enter into the through hole until the designed depth is reached.

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