Construction device for super-long pile foundation structure in karst area

Abstract

The utility model discloses a construction device for a super-long pile foundation structure in a karst area. The construction device comprises a reinforcement cage temporary fixing mechanism, a reinforcement cage position correcting mechanism and a main reinforcement straightening and butting mechanism, the temporary reinforcement cage fixing mechanism is used for hooking the segmented reinforcement cage on the side wall of the opening of the steel casing; the reinforcement cage position correcting mechanism is used for correcting the segmented reinforcement cage to be coaxial with the steel casing and fixing the corrected segmented reinforcement cage; and the main reinforcement straightening and butting mechanism is used for straightening main reinforcements of two sections of segmented reinforcement cages to be butted, and butting and fixing the straightened main reinforcements of the two sections of segmented reinforcement cages. The steel reinforcement cage temporary fixing mechanism is arranged to preliminarily fix the segmented steel reinforcement cage, the steel reinforcement cage position correcting mechanism is arranged to correct the segmented steel reinforcement cage to be coaxial with a steel casing and fix the segmented steel reinforcement cage, and then the main reinforcement straightening and butting mechanism is used for straightening main reinforcements of the two segments of the segmented steel reinforcement cage to be butted. And the main reinforcements of the two straightened segmented reinforcement cages are butted and fixed, so that the problems that the main reinforcements of the existing segmented reinforcement cages are poor in mounting precision, the upper and lower segments are difficult to butt, and the consumed time is long are solved.

Description

Technical Field

[0001] This utility model relates to the field of engineering construction technology, and in particular to a construction device for ultra-long pile foundation structures in karst areas. Background Technology

[0002] Due to the uncertainty of geological conditions in karst areas, after receiving the construction drawings, the geological columnar section of each pile is analyzed and verified to determine the development scale and trend of karst caves and cavities. Supplementary drilling is promptly conducted for pile locations lacking geological data or with questionable data to ensure the pile length meets design requirements. In the construction of ultra-long cast-in-place piles, there are generally two construction methods: one is to fabricate the reinforcing cage in sections and transport them to the site, then weld or mechanically connect the sections during lowering using hoisting equipment (such as cranes). The other is to assemble the sections on a guide rail platform before hoisting them as a whole using large hoisting equipment. However, the first method suffers from poor installation accuracy of the main reinforcement bars in each section, difficulty in connecting upper and lower sections, and long construction time; the second method requires high-precision hoisting equipment, is difficult to control during hoisting, and is also time-consuming. Therefore, it is necessary to design an ultra-long pile foundation construction device. Utility Model Content

[0003] This invention provides a construction device for ultra-long pile foundation structures in karst areas to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A construction device for ultra-long pile foundation structures in karst areas includes: a temporary fixing mechanism for steel cages, a position correction mechanism for steel cages, and a main reinforcement straightening and connection mechanism;

[0006] The temporary fixing mechanism for the reinforcing cage is used to hook the segmented reinforcing cage onto the side wall of the casing opening;

[0007] The rebar cage position correction mechanism is used to correct the segmented rebar cages that are hooked on the side wall of the steel casing to be coaxial with the steel casing, and to fix the corrected segmented rebar cages.

[0008] The main reinforcement straightening and docking mechanism is used to straighten the main reinforcement of two sections of segmented steel cages to be docked, and then dock and fix the straightened main reinforcement of the two sections of segmented steel cages.

[0009] Preferably, the rebar cage position correction mechanism includes multiple sets of correction components, which include: a pull-out lifting buckle, a fixing hoist, and a fixing assembly; one end of the pull-out lifting buckle inserted into the segmented rebar cage is connected to the fixing hoist, and pulling the pull-out lifting buckle causes the fixing hoist to move radially along the segmented rebar cage to fit tightly against the main reinforcement bars of the segmented rebar cage, and continuing to pull the pull-out lifting buckle adjusts the position of the segmented rebar cage, and at this time the pull-out lifting buckle can be placed on the side wall of the opening of the steel casing; the fixing assembly is used to fix the adjusted pull-out lifting buckle.

[0010] Preferably, the pull-out lifting buckle includes a pull plate and pulleys. The pull plate is provided with a hook receiving groove, and the pulleys are rotatably arranged on both sides of the end of the pull plate that is inserted into the fixing hoist, and the pulleys are located on both sides of the hook receiving groove.

[0011] The fixing hoop includes: a fixing box, a slide rail, and a limiting baffle. The slide rail is located on both sides of the inner wall of the fixing box. A groove is provided on one side of the slide rail, and the pull plate can be inserted into the slide rail. The puller slides on the groove. The limiting baffle is located at the end of the groove near the segmented steel cage. The limiting baffle can restrict the puller to move only within the groove.

[0012] The fixing box is provided with a fixing groove corresponding to the hook receiving groove. The sliding plate is pulled out and slides in the slide. The pulley slides on the slide groove and abuts against the limiting baffle, which drives the fixing box to move radially along the segmented steel cage. The fixing groove is close to the main bar of the segmented steel cage inserted in it.

[0013] Preferably, the straightening component further includes a support rod and a support rod fixing assembly. The upper and lower sides of the pull-out lifting buckle away from the segmented steel cage are rotatably equipped with support rods. The end of the support rod away from the pull-out lifting buckle is detachably connected to the main reinforcement of the segmented steel cage through the support rod fixing assembly.

[0014] Preferably, the main reinforcement straightening and docking mechanism includes: gripping and restoring components, a housing, a calibrator, a docking fixer, and a bracket; the bracket is used to support the docking fixer mounted on the opening of the steel casing, and the upper and lower sides of the docking fixer correspond to the two segments of the steel reinforcement cage to be docked respectively; both the upper and lower sides of the docking fixer are provided with a housing and a calibrator, the calibrator is used to indicate the straightening of the main reinforcement of the two segments of the steel reinforcement cage to be docked, and multiple gripping and restoring components are set on the housing, and the multiple gripping and restoring components are used to grip the main reinforcement of the two segments of the steel reinforcement cage to be docked for straightening;

[0015] The docking fixture is equipped with main reinforcement insertion holes. The main reinforcement bars of the two segments of the steel cage to be docked after straightening are inserted into the main reinforcement insertion holes for connection.

[0016] Preferably, the docking fastener includes a rotating component and a mounting plate. The two mounting plates are arranged opposite each other and are rotatably connected at one end through the rotating component. The two mounting plates can be opened and closed in a direction perpendicular to the main reinforcement bars of the segmented steel cage through the rotating component.

[0017] Both ends of the mounting plate are equipped with sleeve operating ports along the direction perpendicular to the main reinforcement bars of the segmented steel cage. The mounting plate has a semi-circular groove. When the two mounting plates are closed, the semi-circular grooves on the two mounting plates form main reinforcement insertion holes. The main reinforcement insertion holes are connected to the sleeve operating ports to form upper main reinforcement insertion holes and lower main reinforcement insertion holes. The main reinforcement bars of the two segments of the segmented steel cage to be connected are inserted into the upper main reinforcement insertion holes and lower main reinforcement insertion holes, respectively. The upper main reinforcement insertion holes and lower main reinforcement insertion holes have sleeve fixing grooves at the openings facing the sleeve operating ports. The connecting sleeve is placed inside the sleeve operating port with both ends located in the sleeve fixing grooves. The connecting sleeve is used to connect the main reinforcement bars of the two segments of the segmented steel cage to be connected.

[0018] Preferably, the docking fastener further includes an opening and closing handle and a locking component. The opening and closing handle is provided at the end of each of the two mounting plates away from the rotating component. A locking hole is provided on the opening and closing handle. Inserting the locking component into the locking hole locks the two mounting plates. Removing the locking component from the locking hole releases the two mounting plates.

[0019] Preferably, the temporary fixing mechanism for the reinforcing cage includes multiple temporary fixing devices, each including: a first fixing hook, a connector, and a second fixing hook; the first fixing hook is movably connected to the connector, and the second fixing hook is movably connected to the connector; the first fixing hook is used to hook onto the side wall of the opening of the steel casing, and the second fixing hook is used to hook onto the stirrups of the segmented reinforcing cage.

[0020] Preferably, the first fixing hook has a first arc-shaped surface that contacts the side wall of the steel casing opening, and a plurality of anti-slip teeth are fixed on the first arc-shaped surface; the second fixing hook has a second arc-shaped surface that contacts the stirrups of the segmented steel cage, and a plurality of anti-slip teeth are also fixed on the second arc-shaped surface.

[0021] Preferably, it further includes a lifting balancing mechanism for horizontal lifting during the transfer of segmented steel cages; the lifting balancing mechanism includes: a lifting tool, a load-bearing component, a first hook component, a leveling instrument, and a second hook component; the lifting tool is used to lift the load-bearing component; the first hook component includes a first hook and a second hook, the first hook and the second hook are spaced apart in the middle of the load-bearing component, the top ends of the first hook and the second hook are movably connected to the load-bearing component, and the hook positions of the first hook and the second hook are equidistant from the load-bearing component; the leveling instrument is installed on the load-bearing component for measuring the tilt angle of the load-bearing component; the second hook component includes a first hook, a second hook, a first driver, and a second driver, the first hook and the second hook are respectively installed at both ends of the load-bearing component, the first driver is used to drive the first hook to move axially along the load-bearing component, and the second driver is used to drive the second hook to move axially along the load-bearing component; based on the tilt angle of the load-bearing component measured by the leveling instrument, the first hook is driven by the first driver and the second hook is driven by the second driver to move.

[0022] Beneficial effects:

[0023] This application discloses a construction device for ultra-long pile foundation structures in karst areas. It uses a temporary fixing mechanism to temporarily hook segmented steel cages onto the sidewall of the steel casing for initial fixation. Then, a steel cage position correction mechanism corrects the segmented steel cages hooked onto the sidewall of the steel casing to align them coaxially with the casing, and fixes the corrected segmented steel cages. Finally, a main reinforcement straightening and docking mechanism straightens the main reinforcements of the two segments to be docked, and docks and fixes the straightened main reinforcements of the two segments. This overcomes the problems of poor installation accuracy of the main reinforcements in existing segmented steel cages, difficulty in docking upper and lower segments, and long time consumption. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a structural schematic diagram of a steel cage position correction mechanism for a construction device for ultra-long pile foundation structures in karst areas, as disclosed in Embodiment 1 of this utility model.

[0026] Figure 2 This is a schematic diagram of the structure of a pull-out hoisting buckle for a construction device for ultra-long pile foundation structures in karst areas, as disclosed in Embodiment 1 of this utility model;

[0027] Figure 3 This is a schematic diagram of the fixing hoop of a construction device for ultra-long pile foundation structures in karst areas, as disclosed in Embodiment 1 of this utility model;

[0028] Figure 4 This is a schematic diagram of a pull-out hoisting buckle and fixing hoist for a construction device for ultra-long pile foundation structures in karst areas, as disclosed in Embodiment 1 of this utility model;

[0029] Figure 5 This is a schematic diagram of the sliding motion of a pull-out hoisting buckle within a fixed hoist in a karst area ultra-long pile foundation structure construction device disclosed in Embodiment 1 of this utility model;

[0030] Figure 6 This is a schematic diagram of the support rod fixing assembly of a construction device for ultra-long pile foundation structures in karst areas, as disclosed in Embodiment 1 of this utility model.

[0031] Figure 7This is a schematic diagram of a construction device for ultra-long pile foundation structures in karst areas, as disclosed in Embodiment 1 of this utility model, in which a pull-out hoisting buckle and a support rod are connected via a movable joint.

[0032] Figure 8 This is a schematic diagram of the movable joint of a construction device for ultra-long pile foundation structures in karst areas, as disclosed in Embodiment 1 of this utility model.

[0033] Figure 9 This is a structural schematic diagram of the main reinforcement straightening and docking mechanism of a construction device for ultra-long pile foundation structures in karst areas, as disclosed in Embodiment 1 of this utility model;

[0034] Figure 10 This is a top view of the main reinforcement straightening and docking mechanism of a construction device for ultra-long pile foundation structures in karst areas, as disclosed in Embodiment 1 of this utility model;

[0035] Figure 11 This is a top view of the docking and fixing device of an ultra-long pile foundation structure construction device in a karst area in the closed state, as disclosed in Embodiment 1 of this utility model;

[0036] Figure 12 This is a top view of the docking and fixing device of an ultra-long pile foundation structure construction device in a karst area, as disclosed in Embodiment 1 of this utility model, in the open state.

[0037] Figure 13 This is a cross-sectional view of a docking and fixing device for an ultra-long pile foundation structure construction device in a karst area, as disclosed in Embodiment 1 of this utility model;

[0038] Figure 14 This is a schematic diagram of the locking component of a construction device for ultra-long pile foundation structures in karst areas, as disclosed in Embodiment 1 of this utility model.

[0039] Figure 15 This is a schematic diagram of the electric telescopic rod and grab hook of a construction device for ultra-long pile foundation structures in karst areas, as disclosed in Embodiment 1 of this utility model;

[0040] Figure 16 This is a structural schematic diagram of a temporary fixing mechanism for a steel cage in a karst area ultra-long pile foundation construction device, as disclosed in Embodiment 1 of this utility model.

[0041] Figure 17 This is a schematic diagram of a temporary fixing device for a construction device of an ultra-long pile foundation structure in a karst area, as disclosed in Embodiment 1 of this utility model;

[0042] Figure 18 This is a schematic diagram of the structure of a connector and handle assembly for a construction device for ultra-long pile foundation structures in karst areas, as disclosed in Embodiment 1 of this utility model.

[0043] Figure 19This is a schematic diagram of the hoisting and balancing mechanism of a construction device for ultra-long pile foundation structures in karst areas, as disclosed in Embodiment 1 of this utility model.

[0044] Figure 20 This is a structural schematic diagram of the load-bearing component and the first hook component assembly of a construction device for ultra-long pile foundation structures in karst areas, as disclosed in Embodiment 1 of this utility model;

[0045] Figure 21 This is a structural schematic diagram of a combination of a load-bearing component, a leveling instrument, a sliding seat, and a second hook component in a construction device for ultra-long pile foundation structures in karst areas, as disclosed in Embodiment 1 of this utility model.

[0046] 11. Lifting gear; 111. Ring; 112. First lifting rope; 113. Second lifting rope; 12. Load-bearing component; 121. Steel ring; 131. First hook; 132. Second hook; 14. Leveling instrument; 151. First hook; 152. Second hook; 16. Sliding seat;

[0047] 21. First fixing hook; 221. First connecting piece; 2211. First arc-shaped segment; 2212. First straight segment; 222. Second connecting piece; 2221. Second arc-shaped segment; 2222. Second straight segment; 223. Rotating shaft; 2241. Fixing nut; 2242. Locking nut; 225. Handle; 23. Second fixing hook; 24. Anti-slip teeth;

[0048] 31. Outer shell; 32. Electric telescopic rod; 33. Hook; 34. Fixing plate; 35. Calibrator; 36. Docking fixture; 361. Opening handle; 3611. Locking hole; 362. Rotating component; 363. Locking assembly; 364. Mounting plate; 365. Sleeve operating port; 366. Main rib insertion hole; 3661. Upper main rib insertion hole; 3662. Lower main rib insertion hole; 367. Sleeve fixing groove; 37. Connecting sleeve; 38. Bracket; 381. Connecting plate;

[0049] 41. Pull-out lifting buckle; 411. Drawer plate; 412. Pulley; 413. Hook receiving slot; 42. Support rod; 421. Connecting hole; 43. Fixing clamp; 431. Fixing box; 432. Slide rail; 433. Limiting baffle; 434. Slide groove; 435. Fixing groove; 436. Anti-collision coating; 44. Movable joint; 441. Movable joint shell; 442. Joint pivot; 45. Support rod fixing assembly; 451. Fixing block; 452. Connecting screw; 453. Support rod mounting slot;

[0050] 5. Segmented steel cage; 51. Main reinforcement; 52. Stirrups; 6. Steel casing; 7. Sonic probe. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0052] Example 1

[0053] A construction device for ultra-long pile foundation structures in karst areas, combined with Figure 1-21 As shown, it includes: a temporary fixing mechanism for the reinforcing cage, a position correction mechanism for the reinforcing cage, and a main reinforcement straightening and connection mechanism;

[0054] The temporary fixing mechanism for the reinforcing cage is used to hook the segmented reinforcing cage 5 onto the side wall of the opening of the steel casing 6;

[0055] The rebar cage position correction mechanism is used to correct the segmented rebar cage 5 that is hooked on the side wall of the opening of the steel casing 6 so that it is coaxial with the steel casing 6, and to fix the corrected segmented rebar cage 5.

[0056] The main reinforcement straightening and docking mechanism is used to straighten the main reinforcement 51 of the two segments of the steel cage 5 to be docked, and to dock and fix the straightened main reinforcement 51 of the two segments of the steel cage 5.

[0057] This application first uses a temporary fixing mechanism to temporarily hook the segmented rebar cage 5 onto the side wall of the steel casing 6 for initial fixing; then, a rebar cage position correction mechanism is used to correct the position of the initially fixed segmented rebar cage 5, so that the segmented rebar cage 5 and the steel casing 6 are coaxial, and the segmented rebar cage 5 is fixed after correction to ensure subsequent connection; then, a main bar straightening and connection mechanism is used to straighten the main bars 51 of the two segments of rebar cage 5 to be connected, so that the main bars 51 of the segments of rebar cage 5 to be connected can be aligned one by one, and the straightened main bars 51 of the two segments of rebar cage 5 are connected and fixed. The temporary fixing mechanism, the position correction mechanism, and the main reinforcement straightening and docking mechanism work together to accurately, conveniently, and quickly complete the docking and lowering of each segment of the ultra-long pile foundation. This overcomes the problems of poor installation accuracy of the main reinforcement of each segment, difficulty in docking the upper and lower segments, and long time consumption that exist when segmented reinforcement cages are hoisted and docked sequentially by hoisting equipment. It retains the advantages of this method, such as low requirements for hoisting equipment, convenient hoisting and lowering, and low difficulty in hoisting and lowering control.

[0058] Preferably, the temporary fixing mechanism for the reinforcing cage includes multiple temporary fixers, each comprising: a first fixing hook 21, a connector, and a second fixing hook 23; the first fixing hook 21 is movably connected to the connector, and the second fixing hook 23 is movably connected to the connector; the first fixing hook 21 is used to hook onto the side wall of the opening of the steel casing 6, and the second fixing hook 23 is used to hook onto the stirrups 52 of the segmented reinforcing cage 5. By hooking the first fixing hook 21 onto the side wall of the opening of the steel casing 6, and the second fixing hook 23 hooking onto the stirrups 52 of the segmented reinforcing cage 5, and then installing multiple temporary fixers around the circumference of the segmented reinforcing cage 5, initial fixing is achieved after the segmented reinforcing cage 5 is lowered. Because multiple temporary fixers can distribute the force to multiple points along the circumference of the stirrups 52 and the opening of the steel casing 6, the stirrups 52, the opening of the steel casing 6, and the temporary fixers are less prone to deformation. Furthermore, the first fixing hook 21 of the temporary fixing device is hooked onto the side wall of the opening of the steel casing 6. Its hook tip is not sharp and does not protrude outward, which can prevent construction workers from being bumped and injured.

[0059] Specifically, the openings of the first fixed hook 21 and the second fixed hook 23 face the same direction, which makes it convenient for construction workers to hook the stirrups 52 and the opening of the steel casing 6 after the hoisting equipment lowers the segmented steel cage 5 to the designated position.

[0060] Preferably, the first fixing hook 21 has a first arc-shaped surface that contacts the side wall of the opening of the steel casing 6, and a plurality of anti-slip teeth 24 are fixedly provided on the first arc-shaped surface; the second fixing hook 23 has a second arc-shaped surface that contacts the stirrups 52 of the segmented steel cage 5, and a plurality of anti-slip teeth 24 are also fixedly provided on the second arc-shaped surface. The anti-slip teeth 24 play an anti-slip role and improve the stability of the first fixing hook 21 and the second fixing hook 23.

[0061] Specifically, the connector includes: a first connecting member 221, a second connecting member 222, a rotating shaft 223, and a locking assembly. The rotating shaft 223 passes through both ends of the first connecting member 221, forming a first closed ring with the first connecting member 221. A first through hole is provided on the first fixing hook 21, through which the first connecting member 221 passes. The rotating shaft 223 passes through both ends of the second connecting member 222, forming a second closed ring with the second connecting member 222. A second through hole is provided on the second fixing hook 23, through which the second connecting member 222 passes. The locking assembly locks both ends of the rotating shaft 223, restricting the axial movement of the first connecting member 221 and the second connecting member 222 along the rotating shaft 223. The first closed ring engages with the first through hole, ensuring the rotation of the first fixing hook 21; the second closed ring engages with the second through hole, ensuring the rotation of the second fixing hook 23. This facilitates hooking.

[0062] Specifically, the first connector 221 includes a first arc-shaped segment 2211 and two first straight segments 2212, with the two first straight segments 2212 respectively fixed at both ends of the first arc-shaped segment 2211;

[0063] The second connector 222 includes a second arc-shaped segment 2221 and two second straight segments 2222, with the two second straight segments 2222 respectively fixed at both ends of the second arc-shaped segment 2221;

[0064] The rotating shaft 223 passes through the first second straight segment 2222, the first first straight segment 2212, the second second straight segment 2222, and the second first straight segment 2212 in sequence. The first connector 221 and the second connector 222 can be set parallel to the wall of the steel casing 6 to avoid interference between the connector and the segmented steel cage 5.

[0065] Specifically, the locking assembly includes a fixing nut 2241 and a locking nut 2242; the fixing nut 2241 is fixed to one end of the rotating shaft 223, and the locking nut 2242 is threaded to the other end of the rotating shaft 223, facilitating disassembly and transportation. The fixing nut 2241 and the rotating shaft 223 can be designed as a single unit, and both the fixing nut 2241 and the rotating shaft 223 can be directly connected using long bolts.

[0066] Specifically, the rotating shaft 223 is provided with a handle 225, which includes two connecting rods and a grip. The rotating shaft 223 passes through the connecting rods, and the locking assembly locks the connecting rods. One connecting rod is pressed between the second connecting member 222 and the fixing nut 2241, and the other connecting rod is pressed between the first connecting member 221 and the locking nut 2242. The handle 225 can facilitate the workers to pick up and hook it.

[0067] Specifically, the handle is equipped with anti-slip protrusions to prevent it from falling out of your hand and damaging the steel cage.

[0068] Preferably, the rebar cage position correction mechanism includes multiple sets of correction components, including: a pull-out lifting buckle 41, a fixing hoist 43, and a fixing assembly; one end of the pull-out lifting buckle 41 inserted into the segmented rebar cage 5 is connected to the fixing hoist 43, pulling the pull-out lifting buckle 41 will cause the fixing hoist 43 to move radially along the segmented rebar cage 5 to fit tightly against the main rebar 51 of the segmented rebar cage 5, and continuing to pull the pull-out lifting buckle 41 will adjust the position of the segmented rebar cage 5, and at this time the pull-out lifting buckle 41 can be placed on the side wall of the opening of the steel casing 6; the fixing assembly is used to fix the adjusted pull-out lifting buckle 41. Pulling the pull-out lifting buckle 41 allows the fixing hoist 43 to fit tightly against the main reinforcement bar 51 of the segmented reinforcing cage 5. Pulling the pull-out lifting buckle 41 of the correction component in the opposite direction of the segmented reinforcing cage 5's offset direction straightens the segmented reinforcing cage 5. Adjusting multiple sets of correction components corrects the position of the segmented reinforcing cage 5, ensuring that the segmented reinforcing cage 5 is coaxial with the steel casing 6. At this time, the pulled-out lifting buckle 41 extends out of the side wall of the steel casing 6 and can be erected on the side wall of the steel casing 6's opening, thus limiting the vertical position of the segmented reinforcing cage 5 and preventing it from shifting. Then, the pulled-out lifting buckle 41 is fixed by the fixing component to prevent it from retracting or shifting, ensuring the accurate and stable position of the segmented reinforcing cage 5 during subsequent connection processes, which helps improve the installation and connection accuracy of the segmented reinforcing cage 5.

[0069] Specifically, when the pull-out lifting buckle 41 is not pulled, it rests against the main reinforcement 51 to avoid interference with the steel casing 6 and thus affecting the lowering of the segmented reinforcement cage 5. When the pull-out lifting buckle 41 rests against the main reinforcement 51, the sonic probe 7 can be placed between the fixing hoist 43 and the main reinforcement 51. Pulling the pull-out lifting buckle 41 allows the fixing hoist 43 to tighten the sonic probe 7 onto the main reinforcement 51. The straightening component can straighten the position of the segmented reinforcement cage 5 while simultaneously fixing the sonic probe 7, ensuring that the position of the sonic probe 7 does not shift during subsequent connection and pouring, thus ensuring the detection of ultra-long pile foundations.

[0070] Preferably, the pull-out lifting buckle 41 includes a pull plate 411 and a pulley 412. The pull plate 411 is provided with a hook receiving groove 413. The pulley 412 is rotatably arranged on both sides of one end of the pull plate 411 that is inserted into the fixing hoist 43, and the pulley 412 is located on both sides of the hook receiving groove 413.

[0071] The fixing hoop 43 includes: a fixing box 431, a slide rail 432, and a limiting baffle 433. The slide rail 432 is provided on both sides of the inner wall of the fixing box 431. A groove 434 is provided on one side of the slide rail 432. The pull plate 411 can be inserted into the slide rail 432, and the pulley 412 slides on the groove 434. The limiting baffle 433 is provided at one end of the groove 434 near the segmented steel cage 5. The limiting baffle 433 can restrict the pulley 412 to move only within the groove 434.

[0072] The fixing box 431 is provided with a fixing groove 435 corresponding to the hook receiving groove 413. When the pull plate 411 is pulled out, it slides in the slide rail 432. The pulley 412 slides on the slide groove 434 and abuts against the limiting baffle 433, which drives the fixing box 431 to move radially along the segmented steel cage 5. The fixing groove 435 is close to the main bar 51 of the segmented steel cage 5 inserted therein. The fixing groove 435 of the corresponding sonic probe 7 correction component clamps the sonic probe 7 to the corresponding main bar 51.

[0073] Specifically, the pull plate 411 is a horizontally arranged rectangular plate with a hook receiving groove 413 opened from one end of the insertion fixing hoist 43 to the other end, so that the pull plate 411 forms a "U" shape to avoid interference with the main reinforcement 51 during the pulling process.

[0074] Specifically, the fixing box 431 is a cuboid, with a fixing groove 435 opened from one end by the pull plate 411 to the other end, so that the fixing box 431 forms a "U" shape to avoid interference with the main reinforcement 51 and to tighten the sonic probe 7 or fit it tightly to the main reinforcement 51.

[0075] Specifically, an anti-collision coating 436 is bonded and fixed inside the fixing groove 435. The anti-collision coating 436 is made of sponge pad and its shape is adapted to the shape of the fixing groove 435. By setting the anti-collision coating 436, the friction between the fixing box 431 and the acoustic probe 7 can be reduced, protecting the acoustic probe 7 from being damaged or broken during the lowering process and after it is lowered into the steel casing 6.

[0076] Specifically, the limiting baffle 433 is detachably connected by bolts passing through the fixing box 431 and the limiting baffle 433. Multiple sets of bolts are used for connection to ensure connection strength, so that the fixing groove 435 can be tightly attached to the main rib 51.

[0077] Specifically, the fixing components can be turnbuckles, steel wires, shackles, and weights used to hold the drawer 411 in place.

[0078] Preferably, the straightening component further includes a support rod 42 and a support rod fixing assembly 45. Support rods 42 are rotatably mounted on both the upper and lower sides of the end of the pull-out lifting buckle 41 furthest from the segmented rebar cage 5. The end of the support rod 42 furthest from the pull-out lifting buckle 41 is detachably connected to the main reinforcement bar 51 of the segmented rebar cage 5 via the support rod fixing assembly 45. The hook of the lifting equipment passes through the hook receiving groove 413 of the pulled-out plate 411, thereby hooking the straightening component for lifting the segmented rebar cage 5. Using the straightening component for lifting avoids the hook directly hooking onto the main reinforcement bar 51 and stirrups 52 of the segmented rebar cage 5, reducing damage to the structure of the segmented rebar cage 5 during lifting, and ensuring the stability of the segmented rebar cage 5 through the supporting action of the support rod 42.

[0079] Specifically, the support rod fixing assembly 45 includes a fixing block 451 and a connecting screw 452. The fixing block 451 is fixed on the main rib 51. The fixing block 451 is provided with a support rod mounting groove 453. One end of the support rod 42 is located in the support rod mounting groove 453. The connecting screw 452 can be screwed into or out of the upper and lower surfaces of the fixing block 451 and one end of the support rod 42 to fix the support rod 42 on the fixing block 451.

[0080] Specifically, the fixing block 451 is welded to the main reinforcement 51. The upper side wall of the support rod mounting groove 453 of the fixing block 451 is longer than the lower side wall. The end of the support rod 42 is inserted into the support rod mounting groove 453. The connecting screw 452 passes through the upper side wall of the fixing block 451 and then through the end of the support rod 42, and is then screwed onto the lower side wall of the fixing block 451, thereby connecting the support rod 42 to the fixing block 451. After the support rods 42 on the upper and lower sides of the pull plate 411 are connected by the fixing block 451 and the connecting screw 452, the stability of the pull plate 411 is ensured, so that the hook of the hoisting equipment can lift the segmented reinforcement cage 5 by hooking the pull plate 411. After the segmented reinforcement cage 5 is lowered into the steel casing 6, the connecting screw 452 is unscrewed, and the end of the support rod 42 is removed from the support rod mounting groove 453. After all the support rods 42 of the multiple straightening components that are evenly distributed around the outer periphery at both ends of the segmented steel cage 5 are removed, the pull plates 411 of the multiple straightening components are pulled out so that the pull plates 411 are mounted on the side wall of the opening of the steel casing 6.

[0081] Specifically, the drawer plate 411 and the support rod 42 are rotatably connected via a movable joint 44. The movable joint 44 includes a movable joint housing 441 and a joint shaft 442. The end of the support rod 42 has a connecting hole 421, through which the joint shaft 442 passes, and the support rod 42 rotates on the joint shaft 442. Both ends of the joint shaft 442 are fitted with movable joint housings 441, allowing the joint shaft 442 to rotate within the movable joint housings 441. The movable joint housings 441 are welded and fixed to the drawer plate 411.

[0082] Preferably, the main reinforcement straightening and docking mechanism includes: gripping and restoring components, a housing 31, a calibrator 35, a docking fixer 36, and a bracket 38; the bracket 38 is used to support the docking fixer 36 mounted on the opening of the steel casing 6, and the upper and lower sides of the docking fixer 36 correspond to the two segments of the steel reinforcement cage 5 to be docked respectively; the upper and lower sides of the docking fixer 36 are provided with a housing 31 and a calibrator 35, the calibrator 35 is used for the alignment indication of the main reinforcement 51 of the two segments of the steel reinforcement cage 5 to be docked, and multiple gripping and restoring components are set on the housing 31, and the multiple gripping and restoring components are used to grip the main reinforcement 51 of the two segments of the steel reinforcement cage 5 to be docked for straightening;

[0083] The docking fixture 36 is provided with a main bar insertion hole 366. The main bars 51 of the two segments of the steel cage 5 to be docked after straightening are inserted into the main bar insertion hole 366 for connection.

[0084] The alignment indicator of the calibrator 35 can detect the deformation of the main rib 51 during manufacturing, storage, and transportation. The deformed main rib 51 is grasped by the grasping and restoring component and a force is applied to it. The grasping and restoring component is operated by the alignment indicator of the calibrator 35 to straighten the main rib 51. The straightened main rib 51 is then inserted into the main rib insertion hole 366 for positioning and connection.

[0085] Preferably, the docking fastener 36 includes a rotating component 362 and a mounting plate 364. The two mounting plates 364 are arranged opposite to each other and are rotatably connected at one end through the rotating component 362. The two mounting plates 364 can be opened and closed in a direction perpendicular to the main reinforcement of the segmented steel cage 5 through the rotating component 362.

[0086] Both ends of the mounting plate 364 along the direction perpendicular to the main reinforcement bars 51 of the segmented steel cage 5 are provided with sleeve operating ports 365. The mounting plate 364 has a semi-circular groove. When the two mounting plates 364 are closed, the semi-circular grooves on the two mounting plates 364 form main reinforcement insertion holes 366. The main reinforcement insertion holes 366 are connected to the sleeve operating ports 365 to form upper main reinforcement insertion holes 3661 and lower main reinforcement insertion holes 3662. The main reinforcement bars 51 of the two segments of the segmented steel cage 5 to be connected are inserted into the upper main reinforcement insertion holes 3661 and lower main reinforcement insertion holes 3662 respectively. The upper main reinforcement insertion holes 3661 and lower main reinforcement insertion holes 3662 have sleeve fixing grooves 367 facing the opening of the sleeve operating ports 365. The connecting sleeve 37 is placed in the sleeve operating ports 365 with both ends located in the sleeve fixing grooves 367. The connecting sleeve 37 is used to connect the main reinforcement bars 51 of the two segments of the segmented steel cage 5 to be connected.

[0087] The sleeve fixing groove 367 can prevent the connecting sleeve 37 from falling off. The upper main bar insertion hole 3661 and the lower main bar insertion hole 3662 guide the main bars 51 of the two sections of the steel cage 5 to be connected, so that the main bars 51 are aligned with the connecting sleeve 37. The operator inserts the tool into the sleeve operating port 365 and twists the connecting sleeve 37, so that the two main bars 51 are initially screwed into the connecting sleeve 37.

[0088] Specifically, a housing 31 is welded to both ends of the upper surface of the mounting plate 364, and a housing 31 is also welded to both ends of the lower surface. A gripping and restoring component is fixed on each housing 31. The docking fixture 36 is provided with two main rib insertion holes 366, which enables the straightening and docking of two pairs of main ribs 51 at one time.

[0089] Specifically, the bracket 38 is provided with 4 legs for supporting the docking fixture 36. The 4 legs are set on the outside of the opening of the steel casing 6, that is, supported at the opening of the pile hole.

[0090] Specifically, the bracket 38 also includes a connecting plate 381. The four legs of the bracket 38 are paired, and a connecting plate 381 is provided at the top of each pair of legs. Furthermore, each mounting plate 364 is also provided with a connecting plate 381. The connecting plates 381 on the bracket 38 and the connecting plates 381 on the mounting plate 364 are fixedly connected by bolts. The connecting plate 381 has multiple sets of vertically arranged through holes. By adjusting the connection between the connecting plates 381 on the bracket 38 and the connecting plates 381 on the mounting plate 364 at different heights of through holes, the height of the docking fixture 36 can be adjusted.

[0091] Preferably, the docking fixture 36 further includes an opening and closing handle 361 and a locking component 363. The opening and closing handle 361 is provided at the end of each of the two mounting plates 364 away from the rotating component 362. A locking hole 3611 is provided on the opening and closing handle 361. The locking component 363 is inserted into the locking hole 3611 to lock the two mounting plates 364. The locking component 363 is removed from the locking hole 3611 to release the two mounting plates 364.

[0092] Specifically, the locking component 363 is a U-shaped hook, and the rotating component 362 adopts two combined flaps, which are located on the upper and lower sides of the sleeve operating port 365.

[0093] Specifically, a fixing plate 34 is welded and fixed to the middle of the upper surface and the middle of the lower surface of each mounting plate 364, and gripping and restoring components are fixedly installed on both sides of the fixing plate 34. Taking the upper side of the docking fixture 36 as an example: the two gripping and restoring components located on the same side of the two fixing plates 34, together with the two gripping and restoring components on the opposite outer shell 31, grip a main rib 51 to apply force.

[0094] Specifically, the grasping and recovery component includes an electric telescopic rod 32 and a grab hook 33. The grab hook 33 is a one-way retracting grab hook. In this embodiment, a self-locking horn hook is used. The tail of the self-locking horn hook is welded and fixed to the moving end of the electric telescopic rod 32. The electric telescopic push rod 32 is fixed on the outer shell 31 or the fixing plate 34. The top of the electric telescopic push rod 32 is provided with a grab hook 33. The electric telescopic push rod 32 can drive the grab hook 33 to move radially to straighten the main reinforcement 51 of the deformed segmented steel cage 5. The electric telescopic push rod 32 adjusts the position of the grab hook 33 according to the position of the main reinforcement 51 to straighten the deformed main reinforcement 51. The grab hook 33 is a one-way retracting grab hook. The construction personnel hook the self-locking horn hook onto the main reinforcement 51 to ensure that the grab hook 33 grasps the main reinforcement 51 and the main reinforcement 51 does not detach during the pulling process. After straightening, the construction personnel remove the self-locking horn hook.

[0095] Specifically, the calibrator 35 is a laser calibrator. Sixteen laser calibrators are arranged in pairs on the upper and lower surfaces of the mounting plate 364, with four laser calibrators arranged in an array at the opening of the main reinforcement insertion hole 366. The laser calibrator emits a laser beam towards the segmented steel cage 5 to collimate the main reinforcement 51. Referring to the laser beam, the calibrator uses a grasping and restoring component to straighten the deformed main reinforcement 51, making the main reinforcement 51 parallel to the laser beam and within the range of the four laser beams, thus meeting the docking requirements of the main reinforcement 51.

[0096] Specifically, the construction device also includes a hoisting balancing mechanism for horizontal hoisting of the segmented steel cage 5 during transport. The hoisting balancing mechanism includes: a lifting device 11, a load-bearing component 12, a first hook assembly, a leveling device 14, and a second hook assembly; the lifting device 11 is used to hoist the load-bearing component 12; the first hook assembly includes a first hook 131 and a second hook 132, which are spaced apart at the middle of the load-bearing component 12, and the tops of both hooks 131 and 132 are movably connected to the load-bearing component 12, with the hook positions of the first hook 131 and 132 at the same distance from the load-bearing component 12; the leveling device 14 is installed on the load-bearing component 12 and used for... The tilt angle of the load-bearing member 12 is measured; the second hook component includes a first hook 151, a second hook 152, a first driver and a second driver. The first hook 151 and the second hook 152 are respectively installed at both ends of the load-bearing member 12. The first driver is used to drive the first hook 151 to move along the axial direction of the load-bearing member 12, and the second driver is used to drive the second hook 152 to move along the axial direction of the load-bearing member 12. The tilt angle of the load-bearing member 12 is measured according to the level calibrator 14, and the first hook 151 is driven by the first driver and the second hook 152 is driven by the second driver to move.

[0097] This balancing device uses a lifting device 11 to lift the load-bearing component 12. First, the first hook 131 and second hook 132 on the load-bearing component 12 are used for initial lifting of the segmented steel cage 5. A leveling instrument 14 is used to measure the tilt angle of the load-bearing component 12. Then, based on the measurement results from the leveling instrument 14, the first actuator drives the first hook 151 to adjust its position, and the second actuator drives the second hook 152 to adjust its position. Finally, the first hook 151 and second hook 152 hook the segmented steel cage 5 to achieve balanced lifting. Compared to the traditional method of repeatedly trying to find balance, this device simplifies the lifting action, facilitates finding balance, and greatly improves the efficiency of on-site construction, enabling the lifting and transfer of most segmented steel cages 5 in a short time.

[0098] Specifically, the load-bearing component 12 is made of high-strength steel rods, and the load-bearing component 12 can be made into rod-shaped, cross-shaped, and frame structures, etc.

[0099] Specifically, guide components are installed at both ends of the load-bearing member 12. The guide components guide the sliding seat 16 to move axially along the load-bearing member 12. The top ends of the first hook 151 and the second hook 152 are movably connected to the two sliding seats 16. The guide components restrict the movement direction of the sliding seat 16 to be along the axis of the parallel segmented steel cage 5. The two sliding seats 16 then drive the first hook 151 and the second hook 152 to move, facilitating the movement of the sliding seats 16 and the installation of the first hook 151 and the second hook 152.

[0100] Specifically, the first driver and the second driver each drive a sliding seat 16 to slide. The first driver includes a first servo motor, a first coupling, and a first transmission screw. The first servo motor drives the first transmission screw to rotate through the first coupling, and the rotation of the first transmission screw is helically driven by the corresponding sliding seat 16. By controlling the rotation of the first servo motor, the moving distance of the sliding seat 16 is controlled to adjust its position.

[0101] Specifically, the second driver includes a second servo motor, a second coupling, and a second transmission screw, which is screw-driven with the corresponding sliding seat 16.

[0102] Specifically, an electromagnet is installed on the sliding seat 16. After the electromagnet is energized, it is attracted and fixed on the load-bearing member 12, ensuring that the position of the sliding seat 16 does not change after it is adjusted to the correct position, and preventing the sliding seat 16 from shifting and falling when the segmented steel cage 5 is lifted.

[0103] Specifically, both the first hook 151 and the second hook 152 are connected to the corresponding sliding seats 16 via winches. The winches are used to raise and lower the first hook 151 and the second hook 152. When initially lifting the segmented steel cage 5 using the first hook 131 and the second hook 132, the two winches raise the corresponding first hook 151 and the second hook 152 to prevent the first hook 151 and the second hook 152 from swaying and interfering with the hooking of the segmented steel cage 5. After the positions of the first hook 151 and the second hook 152 are adjusted, the first hook 151 and the second hook 152 are lowered by the winches to facilitate the hooking of the segmented steel cage 5 by the first hook 151 and the second hook 152; then the segmented steel cage 5 is raised by the winches, causing the first hook 131 and the second hook 132 to loosen, and the segmented steel cage 5 is lifted by the first hook 151 and the second hook 152 to achieve balance.

[0104] Specifically, the guide assembly adopts a linear guide rail; the track of the linear guide rail is installed on the load-bearing member 12, and the slider of the linear guide rail is connected to the sliding seat 16.

[0105] Specifically, linear guide rails are installed on both sides of the load-bearing component 12. The sliding seat 16 is a rectangular tube and is fitted onto the load-bearing component 12. Two sets of linear guide rails are connected to the inner walls of both sides of the sliding seat 16. The winch is installed on the lower surface of the sliding seat 16, and the electromagnet is installed on the top of the sliding seat 16, passing through the top wall of the sliding seat 16 and facing the upper surface of the load-bearing component 12. The arrangement of the sliding seat 16, the load-bearing component 12, the winch, and the electromagnet ensures the smooth sliding of the sliding seat 16, the reliable locking of the sliding seat 16, and the stable lifting and lowering of the first hook 151 and the second hook 152, while preventing the weight of the sliding seat 16, the load-bearing component 12, the winch, and the electromagnet from affecting the balance of the load-bearing component 12.

[0106] Specifically, a steel ring 121 is installed on the load-bearing component 12, and an adapter is hooked onto the steel ring 121. The adapter is connected to a steel rope, and the steel rope is connected to the first hook 131. The steel ring 121 and the adapter ensure that the steel rope and the load-bearing component 12 can swing relative to each other.

[0107] Specifically, the second hook 132 is also connected to the load-bearing member 12 via a steel rope, a transition piece, a steel ring 121, and a load-bearing member 12.

[0108] Specifically, adapters can use eyelets and shackles, etc.

[0109] Specifically, the lifting device 11 includes: a lifting ring, a circular ring 111, at least three first lifting ropes 112, and at least two second lifting ropes 113; the at least two second lifting ropes 113 connect the circular ring 111 and the load-bearing member 12, and the at least three first lifting ropes 112 connect the lifting ring and the circular ring 111. The circular ring 111 evenly distributes the force to the second lifting ropes 113, and increases the distance between the connection points of the two second lifting ropes 113 and the load-bearing member 12, thereby achieving stable lifting of the load-bearing member 12.

[0110] The specific operation process is as follows:

[0111] First, use a crane to hook the lifting device 11 to lift the entire device to a certain height. Then, fix the first hook 131 and the second hook 132 in the middle position of the segmented steel cage 5. Then, lift until the segmented steel cage 5 is 1.5m above the ground.

[0112] Next, the leveling instrument 14 measures the tilt angle of the load-bearing component 12 after it has stabilized.

[0113] Then, based on the tilt direction and angle measured by the level calibrator 14, the first driver is kept stationary while the second driver is controlled to move the corresponding sliding seat 16, thereby adjusting the position of the second hook 152 to adjust the relative position between the first hook 151 and the second hook 152.

[0114] Next, the winch lowers the first hook 151 and the second hook 152 vertically, hooking the first hook 151 and the second hook 152 onto the intersecting position on the segmented steel cage 5; the winch lifts the segmented steel cage 5 through the first hook 151 and the second hook 152, and the steel rope connecting the first hook 131 and the second hook 132 is released.

[0115] Then, the leveling instrument 14 measures the tilt angle of the load-bearing member 12 after it has stabilized. If the angle measured by the leveling instrument 14 is within the allowable range, the entire balancing device is restored to the horizontal position, thus achieving the balancing of the segmented steel cage 5.

[0116] If the angle measured by the leveling instrument 14 still exceeds the allowable range, the winch is lowered to allow the first hook 131 and the second hook 132 to lift the segmented steel cage 5 again. After removing the second hook 152, the position of the second hook 152 is adjusted by controlling the second actuator according to the angle measured by the leveling instrument 14.

[0117] Finally, the winch lowers the first hook 151 and the second hook 152 vertically again, hooking them onto the intersecting points of the segmented rebar cage 5. The winch then lifts the segmented rebar cage 5 again through the first hook 151 and the second hook 152, and the steel rope connecting the first hook 131 and the second hook 132 is released. The entire balancing device returns to a horizontal position, achieving balance for the segmented rebar cage 5.

[0118] With the assistance of the leveling instrument 14 and the second driver, the segmented steel cage 5 can be balanced in 1-2 adjustments. Furthermore, the coordination of the first hook 131 and the second hook 132, and the first hook 151 and the second hook 152 can avoid the need to repeatedly lift and lower the segmented steel cage 5 to the ground in the traditional trial lifting method to adjust the position of the first hook 131 and the second hook 132. Therefore, this device can reduce the leveling steps, simplify the leveling operation, and reduce the moving distance of the segmented steel cage 5, thereby improving construction efficiency.

[0119] Specifically, this balancing device also includes a microcontroller. The leveling device 14 outputs a digital signal of the tilt angle to the microcontroller. The microcontroller calculates the distance that the first hook 151 and the second hook 152 need to move along the axial direction of the load-bearing member 12 according to a preset algorithm. The microcontroller outputs control commands to control the operation of the first driver and the second driver. The automatic adjustment of the first hook 151 and the second hook 152 is achieved through the leveling device 14, the microcontroller, the first driver, and the second driver, thereby realizing the automatic balance adjustment of the segmented steel cage 5 during hoisting.

[0120] Specifically, the leveling instrument 14 uses a tilt sensor and the microcontroller is an Arduino.

[0121] Specifically, the adjustment control command required by the microcontroller to output based on the tilt angle measured by the level calibrator 14 can also be obtained through simulation, preset into the microcontroller, and simulated manual adjustment through 1-2 iterations.

[0122] Specifically, an algorithm can be written based on the magnitude of the force exerted by the first hook 131 and the second hook 132 on the load-bearing member 12, the lever arm and the tilt angle, and the required moving distance of the first hook 151 and the second hook 152 can be directly calculated through the algorithm. The algorithm is then written into the microcontroller to generate control instructions to control the action of the first driver and the second driver, so that the center of gravity of the segmented steel cage 5 falls between the first hook 151 and the second hook 152.

[0123] Example 2

[0124] This embodiment provides a construction method for an ultra-long pile foundation structure construction device in a karst area disclosed in Embodiment 1, including the following steps:

[0125] S1. When fabricating segmented reinforcing cages, install the reinforcing cage position correction mechanism on the segmented reinforcing cages:

[0126] S11. After the segmented steel cage is made, place the fixing box inside the segmented steel cage, then insert the pull plate through the segmented steel cage into the slide of the fixing box, insert the pulley on the pull plate into the slide groove, and then install the limiting baffle on the slide groove of the fixing box for limiting.

[0127] S12. After installing the joint pivot and movable joint housing on one end of the support rod, weld the movable joint housing to the pull plate, insert the other end into the support rod mounting slot of the fixing block, and screw in the connecting screw to connect the support rod to the fixing block.

[0128] S13. Correction components are evenly distributed around one end of the segmented steel cage.

[0129] S2. The first section of the reinforcing cage is hoisted to the construction site using hoisting equipment and then lowered into the steel casing:

[0130] The lifting equipment hooks onto the pull plate of part of the straightening component, and lifts the first section of the reinforcing cage and lowers it into the steel casing; when the first section of the reinforcing cage is lowered to the point where the straightening component at the top of it protrudes from the opening of the steel casing, the lifting equipment remains stationary.

[0131] S3. Hook the first section of the reinforcing cage onto the side wall of the steel casing opening using the temporary fixing mechanism:

[0132] S31. The construction workers shall hang the first fixing hook of the temporary fixing device on the side wall of the opening of the steel casing, and the second fixing hook shall hang on the stirrup of the first section of the steel cage.

[0133] S32. Multiple temporary fixing devices are evenly installed around the outer periphery of the first section of the steel cage.

[0134] S33. The hoisting equipment continues to lower the first section of the steel cage, so that the first section of the steel cage is temporarily fixed by multiple temporary fixing devices.

[0135] S4. Using the rebar cage position correction mechanism, the first segment of the rebar cage, which is hooked onto the side wall of the steel casing, is corrected to be coaxial with the steel casing, and the corrected first segment of the rebar cage is then fixed.

[0136] S41. The construction personnel shall unscrew the connecting screws of the straightening component that is not hooked to the hook of the hoisting equipment, so that its support rod is detached from the fixing block;

[0137] S42. The construction personnel pull the pull plate or use equipment to pull the pull plate, so that the fixing box clamps the main reinforcement. The sonic probe is inserted into the fixing slot of any fixing box, and the corresponding pull plate is pulled, so that the fixing box clamps the sonic probe onto the corresponding main reinforcement.

[0138] S43. The hoisting equipment lifts the first section of the steel reinforcement cage, and the construction personnel adjust the position of the temporary fixing hook. Then the hoisting equipment lowers the first section of the steel reinforcement cage so that the pulled-out plate is placed on the side wall of the steel casing opening.

[0139] S44. The construction personnel shall remove the hook of the hoisting equipment from the pull plate;

[0140] S45. Locate the correction component in the opposite direction of the first segment of the reinforcing cage's tilt, pull its pull plate to correct the first segment of the reinforcing cage, and gradually adjust each correction component to make the first segment of the reinforcing cage coaxial with the steel casing; connect one end of a section of the fixing component's steel cable to the pull plate via a shackle and the other end to a turnbuckle, and connect one end of the other section of the fixing component's steel cable to a turnbuckle and the other end to a weight via a shackle; tighten the steel cable by adjusting the turnbuckle to fix the pull plate and prevent it from retracting.

[0141] S5. Set up the main reinforcement straightening and docking mechanism at the opening of the steel casing, hoist the second section of the segmented steel cage to the top of the main reinforcement straightening and docking mechanism, straighten the main reinforcement of the two segments of the segmented steel cage to be docked through the main reinforcement straightening and docking mechanism, and dock and fix the main reinforcement of the two segments of the segmented steel cage after straightening.

[0142] S51. Support legs are erected on the outer periphery of the opening of the steel casing, and the connecting plates on the support legs are fixedly connected to the connecting plates on the mounting plate by bolts, so as to set up the gripping and recovery components, the outer shell, the calibrator and the docking fixture at the opening of the steel casing.

[0143] S52. The hoisting equipment hoists the second section of the steel cage to the top of the main reinforcement straightening and docking mechanism, and initially aligns it with the first section of the steel cage, so that the two main reinforcement bars are initially aligned with the two main reinforcement bar insertion holes.

[0144] S53. Make the calibrator emit a laser beam. The construction personnel operate the grasping and recovery component to grasp the deformed main rib according to the collimation indication of the laser beam. The grasping and recovery component pulls the deformed main rib until the main rib is parallel to the laser beam and within the range of the four laser beams, thus completing the straightening operation.

[0145] S54. Adjust the position of the connecting plate and thus adjust the height of the bracket. Lower the height of the docking fixture so that the main reinforcement bars of the first section of the steel cage are inserted from the lower main reinforcement bar insertion hole. The hoisting equipment lowers the second section of the steel cage so that the main reinforcement bars of the second section of the steel cage are inserted from the upper main reinforcement bar insertion hole.

[0146] S55. Keep the hoisting equipment stationary, and the operator inserts the tool into the sleeve operating port and screws the connecting sleeve so that the two main reinforcing bars are initially screwed into the connecting sleeve.

[0147] S56. After disassembling the bracket, unlock the locking assembly, open the mounting plate through the opening and closing handle, and pull the segmented steel cage out from the gap between the main reinforcement bars.

[0148] S57. Reinstall the bracket and the docking fastener. Pass the open mounting plate of the docking fastener through the gap between the main ribs to align the docking fastener with the next pair of main ribs, and then lock the opening and closing handle. Repeat steps S53-S56 until all the main ribs are straightened and the connecting sleeves are pre-installed.

[0149] S6. Remove the main reinforcement straightening and docking mechanism and the temporary fixing mechanism of the steel cage. Release the fixing of the first section of the steel cage by the steel cage position correction mechanism. The hoisting equipment places the connected first section of the steel cage and the second section of the steel cage into the steel casing.

[0150] S61. Remove the main reinforcement straightening and connection mechanism, and have the construction personnel tighten the connecting sleeve to complete the connection of the first section of the steel reinforcement cage and the second section of the steel reinforcement cage.

[0151] S62. Remove the temporary fixing mechanism of the rebar cage, release the fixing mechanism of the first section of the rebar cage from the rebar cage position correction mechanism, and place the connected first section of the rebar cage and the second section of the rebar cage into the steel casing using the hoisting equipment.

[0152] S7. Repeat the operations for the first and second segmented steel cages in S3-S6 for the two subsequent steel cage sections to be connected, until the connection and lowering of all segmented steel cages are completed.

[0153] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A construction device for ultra-long pile foundation structures in karst areas, characterized in that, include: Temporary fixing mechanism for reinforcing cage, position correction mechanism for reinforcing cage, and main reinforcement straightening and connection mechanism; The temporary fixing mechanism for the steel cage is used to hook the segmented steel cage (5) onto the side wall of the opening of the steel casing (6); The rebar cage position correction mechanism is used to correct the segmented rebar cage (5) hooked on the side wall of the cylinder opening of the steel casing (6) to be coaxial with the steel casing (6), and to fix the corrected segmented rebar cage (5); The main reinforcement straightening and docking mechanism is used to straighten the main reinforcement (51) of the two sections of the segmented steel cage (5) to be docked, and to dock and fix the straightened main reinforcement (51) of the two sections of the segmented steel cage (5).

2. The construction device for ultra-long pile foundation structures in karst areas according to claim 1, characterized in that, The rebar cage position correction mechanism includes multiple correction components, including: a pull-out lifting buckle (41), a fixing hoist (43), and a fixing component; one end of the pull-out lifting buckle (41) inserted into the segmented rebar cage (5) is connected to the fixing hoist (43), pulling the pull-out lifting buckle (41) will drive the fixing hoist (43) to move together along the radial direction of the segmented rebar cage (5) to fit tightly against the main reinforcement (51) of the segmented rebar cage (5), and continuing to pull the pull-out lifting buckle (41) will adjust the position of the segmented rebar cage (5), and at this time the pull-out lifting buckle (41) can be placed on the side wall of the opening of the steel casing (6); the fixing component is used to fix the adjusted pull-out lifting buckle (41).

3. The construction device for ultra-long pile foundation structures in karst areas according to claim 2, characterized in that, The pull-out lifting buckle (41) includes a pull plate (411) and a pulley (412). The pull plate (411) is provided with a hook receiving groove (413). The pulley (412) is rotatably arranged on both sides of one end of the pull plate (411) that is inserted into the fixing hoist (43), and the pulley (412) is located on both sides of the hook receiving groove (413). The fixing hoop (43) includes: a fixing box (431), a slide rail (432), and a limiting baffle (433). The slide rail (432) is provided on both sides of the inner wall of the fixing box (431). A sliding groove (434) is provided on one side of the slide rail (432). The pull plate (411) can be inserted into the slide rail (432). The pulley (412) slides on the sliding groove (434). The limiting baffle (433) is provided at one end of the sliding groove (434) near the segmented steel cage (5). The limiting baffle (433) can restrict the pulley (412) to move only within the sliding groove (434). The fixing box (431) is provided with a fixing groove (435) corresponding to the hook receiving groove (413). The pull plate (411) is pulled out and slides in the slide rail (432). The pulley (412) slides on the slide groove (434) and abuts against the limiting baffle (433), which drives the fixing box (431) to move radially along the segmented steel cage (5). The fixing groove (435) is close to the main bar (51) of the segmented steel cage (5) inserted therein.

4. The construction device for ultra-long pile foundation structures in karst areas according to claim 2, characterized in that, The correction component also includes a support rod (42) and a support rod fixing assembly (45). The upper and lower sides of the pull-out hoisting buckle (41) away from the segmented steel cage (5) are rotatably equipped with support rods (42). The end of the support rod (42) away from the pull-out hoisting buckle (41) is detachably connected to the main reinforcement (51) of the segmented steel cage (5) through the support rod fixing assembly (45).

5. The construction device for ultra-long pile foundation structures in karst areas according to claim 1, characterized in that, The main reinforcement straightening and docking mechanism includes: a gripping and restoring component, a shell (31), a calibrator (35), a docking fixer (36), and a bracket (38); the bracket (38) is used to support the docking fixer (36) mounted on the opening of the steel casing (6), and the upper and lower sides of the docking fixer (36) correspond to the two segments of the steel reinforcement cage (5) to be docked respectively; the upper and lower sides of the docking fixer (36) are provided with a shell (31) and a calibrator (35), and the calibrator (35) is used for the alignment indication of the main reinforcement (51) of the two segments of the steel reinforcement cage (5) to be docked; multiple gripping and restoring components are set on the shell (31), and multiple gripping and restoring components are used to grip the main reinforcement (51) of the two segments of the steel reinforcement cage (5) to be docked for straightening; The docking fixture (36) is provided with a main bar insertion hole (366). The main bars (51) of the two segments of the steel cage (5) to be docked after straightening are inserted into the main bar insertion hole (366) for connection.

6. The construction device for ultra-long pile foundation structures in karst areas according to claim 5, characterized in that, The docking fastener (36) includes a rotating component (362) and a mounting plate (364). The two mounting plates (364) are arranged opposite each other and are rotatably connected at one end through the rotating component (362). The two mounting plates (364) can be opened and closed in a direction perpendicular to the main reinforcement (51) of the segmented steel cage (5) through the rotating component (362). The mounting plate (364) has sleeve operating ports (365) at both ends along the direction perpendicular to the main reinforcement of the segmented steel cage (5). A semi-circular groove is formed on the mounting plate (364). When the two mounting plates (364) are joined together, the semi-circular grooves on the two mounting plates (364) form main reinforcement insertion holes (366). The main reinforcement insertion holes (366) communicate with the sleeve operating ports (365) to form an upper main reinforcement insertion hole (3661) and a lower main reinforcement insertion hole (3662). The two segments of the segmented steel cage to be joined ( 5) The main reinforcement bars (51) are respectively inserted into the upper main reinforcement insertion hole (3661) and the lower main reinforcement insertion hole (3662); the upper main reinforcement insertion hole (3661) and the lower main reinforcement insertion hole (3662) are provided with sleeve fixing grooves (367) facing the sleeve operation port (365), and the connecting sleeve (37) is placed in the sleeve operation port (365) with both ends located in the sleeve fixing groove (367). The connecting sleeve (37) is used to connect the main reinforcement bars (51) of the two sections of segmented steel cage (5) to be connected.

7. A construction device for ultra-long pile foundation structures in karst areas according to claim 6, characterized in that, The docking fastener (36) also includes an opening and closing handle (361) and a locking component (363). The two mounting plates (364) are provided with an opening and closing handle (361) at the end away from the rotating component (362). The opening and closing handle (361) is provided with a locking hole (3611). The locking component (363) is inserted into the locking hole (3611) to lock the two mounting plates (364). The locking component (363) is removed from the locking hole (3611) to release the two mounting plates (364).

8. The construction device for ultra-long pile foundation structures in karst areas according to claim 1, characterized in that, The temporary fixing mechanism for the steel cage includes multiple temporary fixing devices, each including a first fixing hook (21), a connector, and a second fixing hook (23). The first fixing hook (21) is movably connected to the connector, and the second fixing hook (23) is movably connected to the connector. The first fixing hook (21) is used to hook onto the side wall of the opening of the steel casing (6), and the second fixing hook (23) is used to hook onto the stirrups (52) of the segmented steel cage (5).

9. A construction device for ultra-long pile foundation structures in karst areas according to claim 8, characterized in that, The first fixing hook (21) has a first arc-shaped surface, which contacts the side wall of the cylinder opening of the steel casing (6), and a number of anti-slip teeth (24) are fixed on the first arc-shaped surface; the second fixing hook (23) has a second arc-shaped surface, which contacts the stirrups (52) of the segmented steel cage (5), and a number of anti-slip teeth (24) are also fixed on the second arc-shaped surface.

10. A construction device for ultra-long pile foundation structures in karst areas according to claim 1, characterized in that, It also includes a lifting and balancing mechanism for horizontal lifting during the transfer of the segmented steel cage (5); the lifting and balancing mechanism includes: a lifting device (11), a load-bearing component (12), a first hook component, a leveling instrument (14), and a second hook component; the lifting device (11) is used to lift the load-bearing component (12); the first hook component includes a first hook (131) and a second hook (132), the first hook (131) and the second hook (132) are spaced apart in the middle of the load-bearing component (12), the top ends of the first hook (131) and the second hook (132) are movably connected to the load-bearing component (12), and the distance from the hook position of the first hook (131) and the second hook (132) to the load-bearing component (12) is the same; the leveling instrument (14) is used for horizontal lifting during the transfer of the segmented steel cage (5); the lifting and balancing mechanism includes: a lifting device (11), a load-bearing component (12 ... The leveling instrument (14) is installed on the load-bearing member (12) to measure the tilt angle of the load-bearing member (12); the second hook component includes a first hook (151), a second hook (152), a first driver and a second driver. The first hook (151) and the second hook (152) are respectively installed at both ends of the load-bearing member (12). The first driver is used to drive the first hook (151) to move along the axial direction of the load-bearing member (12), and the second driver is used to drive the second hook (152) to move along the axial direction of the load-bearing member (12). According to the tilt angle of the load-bearing member (12) measured by the leveling instrument (14), the first hook (151) is driven by the first driver and the second hook (152) is driven by the second driver to move.

Images