Construction platform device between deep foundation pit support structure piles and construction method

Abstract

The invention provides a construction platform device between deep foundation pit support structure piles and a construction method, and relates to the technical field of construction equipment. The construction platform device comprises an operation platform, a hoisting mechanism and a cantilever beam, the cantilever beam is installed on a body of the hoisting mechanism, and the operation platform is detachably connected with the hoisting end of the hoisting mechanism; a chain structure is installed on the cantilever beam and used for enabling the operation platform to move in the vertical direction, and the free end of the chain structure is detachably connected with the operation platform. A winding mechanism for winding the chain structure is arranged on the cantilever beam, and a fixing mechanism for assisting in fixing the working platform is arranged between the chain structure and the working platform; through cooperation of the chain structure and the hoisting mechanism, the operation platform can be controlled to move in the deep foundation pit in the vertical direction, the fixing mechanism temporarily fixes the operation platform to the wall face of the deep pit, and the operation platform is prevented from shaking in the construction operation process.

Description

Technical Field

[0001] The present invention relates to the technical field of construction equipment, and in particular to a construction platform device between piles of a deep foundation pit retaining structure and a construction method. Background Art

[0002] In the process of deep foundation pit construction, in order to meet the needs of high-altitude operations and personnel transportation, as well as to improve work efficiency and ensure construction safety, a hanging basket device is usually used. The hanging basket can be moved up and down along the facade of a building or structure by cooperating with a rope-type lifting device. However, the existing hanging basket is usually suspended in the air during operation. As the hanging basket continues to rise or fall, the construction workers working on the hanging basket, moving it, or loading other construction equipment for long-term construction will cause the hanging basket to shake. In addition, when transporting equipment and multiple personnel, it is only necessary to rely on traction ropes for traction. In the event of an emergency, the stability and safety of the hanging basket that is only pulled by ropes cannot be guaranteed, and when construction workers perform high-altitude operations on the hanging basket, the hanging basket will be forced to move away from the wall during the process, which increases the difficulty of construction operations. In addition, in a relatively narrow area, the hanging basket of the above structure can only be fixed at a certain position through rope traction and cannot move laterally in a deep foundation pit, resulting in the construction angles of construction workers being limited within a certain range, affecting the progress of construction. Therefore, a new type of hanging basket for construction projects is needed to solve the shortcomings of the prior art. Summary of the invention

[0003] The object of the present invention is to provide a deep foundation pit retaining structure pile construction platform device and a construction method, which can solve the problems raised by the above-mentioned background technology in view of the shortcomings of the prior art.

[0004] The technical solution of the present invention is achieved in this way:

[0005] The present invention provides a construction platform device between piles of a deep foundation pit retaining structure, comprising a working platform, a lifting mechanism and a cantilever beam, wherein the cantilever beam is installed on the main body of the lifting mechanism, the working platform and the lifting end of the lifting mechanism are detachably connected, a chain structure for guiding the working platform to move in a vertical direction is installed on the cantilever beam, the free end of the chain structure is detachably connected to the working platform, a winding mechanism for winding up the chain structure is provided on the cantilever beam, and a fixing mechanism for assisting in fixing the working platform is provided between the chain structure and the working platform.

[0006] In some technical solutions of the present invention, the lifting mechanism includes a frame, a traveling mechanism for walking is provided at the bottom of the frame, a boom structure is rotatably provided at the top of the frame, a fifth cylinder is rotatably provided on the frame, the telescopic end of the fifth cylinder is hinged to the boom structure, and a cable structure connected to the working platform is provided on the telescopic end of the boom structure.

[0007] In some technical solutions of the present invention, a plurality of supporting mechanisms are provided on the frame, and the supporting mechanisms include a third supporting arm rotatably arranged on the frame, a first supporting arm rotatably arranged on the free end of the third supporting arm, a second supporting arm slidably arranged in the first supporting arm, a first cylinder connected to the third supporting arm rotatably arranged on the frame, and a second cylinder hinged to the first supporting arm is provided on the third supporting arm.

[0008] In some technical solutions of the present invention, the chain structure includes multiple first chain links, a second chain link is rotatably provided between any two adjacent first chain links, a rotation groove is opened on both sides of the first chain link, a rotating part is provided on both sides of the second chain link, a shaft rod is passed through the rotating part, and the shaft rod is rotatably set in the rotation groove.

[0009] In some technical schemes of the present invention, the winding mechanism includes a loading mechanism installed on a cantilever beam, a guide member is provided on the side wall of the cantilever beam, the free end of the chain structure is passed through the guide member and extends outward, the chain structure is wound in the loading mechanism, a mounting frame is installed on the cantilever beam, a driving wheel is rotatably provided on the mounting frame, a plurality of tooth blocks are arranged around the outer wall of the driving wheel, and limiting grooves are provided on the outer side walls of the first chain link and the second chain link, and parts of the tooth blocks are embedded in the limiting grooves.

[0010] In some technical solutions of the present invention, a stabilizing beam detachably connected to the chain structure is installed on the side wall of the working platform, and an adjusting mechanism for driving the working platform to reciprocate along its extension direction is provided on the stabilizing beam.

[0011] In some technical schemes of the present invention, the adjustment mechanism includes a fourth cylinder installed on the stabilizing beam, a guide groove is opened on the side wall of the stabilizing beam, a guide block connected to the working platform is slidably provided in the guide groove, a fixed seat connected to the working platform is provided on the free end of the fourth cylinder, a sinking groove is opened on the bottom of the guide groove, and a roller connected to the guide block is rotatably provided in the sinking groove.

[0012] In some technical solutions of the present invention, two third cylinders connected to the cantilever beam are installed on the side wall of the frame.

[0013] In some technical solutions of the present invention, the fixing mechanism includes two suction cup members installed on the side wall of the stabilizing beam away from the working platform, a flexible layered structure is provided on the adsorption surface of the suction cup members, and a negative pressure device respectively connected to the two suction cup members is provided on the frame.

[0014] Repair method of pile structure between deep foundation pit retaining structure:

[0015] The method comprises the following steps: firstly, lifting the working platform to the area to be constructed by a lifting mechanism; then, the cantilever beam pushes the working platform out along its extension direction, so that the working platform reaches the upper side of the pre-repairing position;

[0016] Next, the chain structure and the lifting mechanism are started, and the two cooperate to control the working platform to go deep into the deep foundation pit in the vertical direction until it is flush with the pre-repair position;

[0017] Then, the cantilever beam is retracted to the frame by the third cylinder and the working platform is moved closer to the pre-repairing position; the fixing mechanism fixes the working platform on the wall of the deep foundation pit;

[0018] Finally, construction work follows.

[0019] Compared with the prior art, the present invention has at least the following advantages or beneficial effects:

[0020] The chain structure and the lifting mechanism can be coordinated to control the working platform to move in the vertical direction in the deep foundation pit. During the lifting process of the working platform, the chain structure assists the lifting mechanism to ensure that the platform is lifted and lowered in the foundation pit in the vertical direction to avoid lateral swinging of the working platform during lifting or construction. The free end of the chain structure is detachably connected to the working platform through a latch structure. A winding mechanism for winding up the chain structure is provided on the cantilever beam to facilitate the release or winding up of the chain structure to improve the lowering and rewinding efficiency of the working platform. A fixing mechanism for assisting in fixing the working platform is provided between the chain structure and the working platform. The fixing mechanism can temporarily fix the working platform on the wall of the deep pit, which can further prevent the working platform from shaking during the construction operation of the staff, resulting in the quality of subsequent construction cannot be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the construction structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the installation structure of the working platform and the chain structure in the present invention;

[0024] Figure 3 It is a three-dimensional schematic diagram of the chain structure in the present invention;

[0025] Figure 4 It is a schematic diagram of the installation structure of the working platform and the fixing mechanism in the present invention;

[0026] Figure 5 It is a cross-sectional structural schematic diagram of the chain structure in the present invention;

[0027] Figure 6 It is a schematic diagram of the cross-sectional structure of the chain structure and the guide member in the present invention;

[0028] Figure 7 It is a schematic diagram of the combined structure of the first chain link and the second chain link in the invention;

[0029] Figure 8 It is a schematic diagram of a partially enlarged structure of the support mechanism in the present invention.

[0030] Icons: 1. Main arm; 2. Walking track; 3. Frame; 4. Pumping equipment; 5. Jib; 6. Telescopic arm; 7. Main cable; 8. Auxiliary cable; 9. Hanger; 10. Working platform; 11. First support arm; 12. Second support arm; 13. Travel wheel; 14. First cylinder; 15. Second cylinder; 16. Guide; 17. Chain structure; 18. Suction cup; 19. Cantilever beam; 20. Loading mechanism; 21. Third cylinder; 22. Fourth cylinder; 23. Stabilizing beam; 24. Fixed seat; 25. Guide block; 26. Roller; 27. Mounting frame; 28. Driving wheel; 29. ​​First link; 30. Second link; 31. Limiting groove; 32. Shaft; 33. Third support arm; 34. Fifth cylinder. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example

[0034] Please refer to Figure 1-Figure 8 shown.

[0035] The present invention provides a deep foundation pit retaining structure pile construction platform device, referring to Figure 1 and Figure 2As shown, the device includes a work platform 10, which adopts a steel structure frame, welded by steel plates and steel pipes, and forms a spacious space inside; the lifting mechanism is a rope-type lifting device; the cantilever beam 19 is an I-beam structure, and the cantilever beam 19 is installed on the body of the lifting mechanism by bolts; the work platform 10 and the lifting end of the lifting mechanism are detachably connected through a pin shaft. A chain structure 17 for guiding the work platform 10 to move in the vertical direction is installed on the cantilever beam 19. The chain structure 17 cooperates with the lifting mechanism to control the work platform 10 to move in the vertical direction in the deep foundation pit. In the actual working process, the lifting mechanism is mainly responsible for lifting the work platform 10, and the two chain structures 17 assist the lifting mechanism during the lifting process to ensure that the work platform 10 is lifted and lowered smoothly in the foundation pit in the vertical direction, so that the work platform 10 does not swing horizontally during the lifting or construction process. The end of the chain structure 17 is connected to the working platform 10 through a detachable latch structure, and a winding mechanism for winding up the chain structure 17 is provided on the cantilever beam 19, which is convenient for releasing or winding up the chain structure 17 and improving the descending and rewinding efficiency of the working platform 10. A fixing mechanism for assisting in fixing the working platform 10 is provided between the chain structure 17 and the working platform 10, and the fixing mechanism can temporarily fix the working platform 10 on the wall of the deep pit to prevent the working platform 10 from swinging during the construction operation of the staff, thereby ensuring the construction quality and safety during construction.

[0036] In order to improve stability, the present invention designs two cantilever beams 19 which are firmly mounted on both sides of the vehicle frame 3 by bolts.

[0037] In certain technical embodiments of the present invention, the lifting mechanism includes a frame 3, which is equipped with a crawler-type walking mechanism at the bottom so as to move on various ground surfaces. The lifting mechanism includes a plurality of walking wheels 13, two walking wheels 13 are respectively installed on both sides of the frame 3, and walking tracks 2 are installed on the two walking wheels 13. The walking tracks 2 are steel tracks, which can increase the bearing area and passing capacity of the walking mechanism and facilitate operation in the construction site. The top of the frame 3 is rotatably provided with a boom structure, and the boom structure includes a main arm 1, which is rotatably arranged on the frame 3 through a rotating seat, and a secondary arm 5 is slidably arranged in the main arm 1 along its extension direction, and a telescopic arm 6 is slidably arranged in the secondary arm 5 along its extension direction. The multi-stage arm structure can extend the hanging distance of the working platform 10 and expand the construction range. The frame 3 is rotatably provided with a fifth cylinder 34, and its telescopic end is hinged to the outer wall of the main arm 1 in the boom structure; the telescopic end of the boom structure is provided with a cable structure connected to the working platform 10, and heavier objects can be carried through the cable structure.

[0038] The cable structure includes a main cable 7, which is installed on the body of the frame 3 through a winding mechanism, and the body of the main cable 7 is set on the free end of the telescopic arm 6 through a pulley; a hanger 9 is provided on the top of the working platform 10, and the hanger 9 is fixed to the top of the working platform 10 by bolts, and an auxiliary cable 8 is provided on the hanger 9, and the number of the auxiliary cables 8 is 2, and the two auxiliary cables 8 are connected to the main cable 7 through hooks.

[0039] In some technical solutions of the present invention, a plurality of supporting mechanisms are provided on the frame 3, and the supporting mechanisms include a third supporting arm 33 rotatably provided on the frame 3, a first supporting arm 11 is rotatably provided on the free end of the third supporting arm 33, a second supporting arm 12 is slidably provided in the first supporting arm 11, a first cylinder 14 connected to the third supporting arm 33 is rotatably provided on the frame 3, and a second cylinder 15 hinged to the first supporting arm 11 is provided on the third supporting arm 33. There are 4 groups of supporting mechanisms, which are respectively provided at the 4 corners of the frame 3, and are used to provide auxiliary support for the frame 3 in the hoisting state, to prevent the arm structure on the frame from tipping over when hoisting objects, and to ensure operation safety.

[0040] In some technical solutions of the present invention, the chain structure 17 is composed of a plurality of first links 29 and a plurality of second links 30, any second link 30 is rotatably placed between any two adjacent first links 29, a rotation groove is provided on both sides of the first link 29, a rotation part is provided on both sides of the second link 30, a shaft 32 is passed through the rotation part, and the shaft 32 is rotatably placed in the rotation groove. Through the above structure, the working platform 10 applies a downward pulling force to the chain structure 17 by its own weight during the descent process, so that the rotation part on the second link 30 is completely transferred into the rotation groove, and the outer edge of the rotation part abuts against the bottom of the rotation groove, and the static friction force generated after the two abut is relatively large, so that the second link 30 can be prevented from making a circular motion relative to the first link 29 in the circumferential direction of the shaft 32, and the chain structure 17 does not bend or swing laterally during the lifting process through the above structure.

[0041] In some technical solutions of the present invention, the winding mechanism includes a loading mechanism 20 installed on the cantilever beam 19. A guiding member 16 is provided on the side wall of the cantilever beam 19. The guiding member 16 is integrally L-shaped, and the cross-section of the guiding member 16 is in a "C" shape. Limiting plates are provided on the two opposite inner side walls of the guiding member 16. The shaft rod 32 arranged in this way is slidably arranged on the limiting plates to prevent the chain structure 17 from falling off inside the guiding member 16. The free end of the chain structure 17 passes through the guiding member 16 and extends outward. The chain structure 17 is wound inside the loading mechanism 20. The loading mechanism 20 includes a loading shell. A plate-like structure is provided inside the loading shell. The plate-like structure is spiral. The plate-like structure forms a rectangular or circular spiral channel inside the loading shell. The width and height of the spiral channel are both adapted to the chain structure 17. A cover body is also provided on the loading shell for convenient later maintenance. An installation frame 27 is installed on the cantilever beam 19. A driving wheel 28 is rotatably provided on the installation frame 27, and a high-power motor is installed on the installation frame 27. A speed reducer is provided between the high-power motor and the driving wheel 28, which can make the driving wheel 28 force the chain structure 17 to move at a uniform speed when it is retracted into the loading mechanism 20, improving the operation efficiency of this structure. A plurality of tooth blocks are circumferentially provided on the outer wall of the driving wheel 28. Limiting grooves 31 are provided on the outer side walls of the first link 29 and the second link 30. Part of the tooth blocks are embedded in the limiting grooves 31. By using the tooth blocks provided on the driving wheel 28 to be embedded in the limiting grooves 31, it is possible to prevent the chain structure 17 from suddenly falling back during operation and improve the stability during operation.

[0042] When the chain structure 17 is retracted, under the restriction of the tooth blocks provided on the driving wheel 28, the chain structure 17 composed of the second link 30 and the first link 29 makes a left circumferential movement around the circumference of the driving wheel 28. At this time, the rotating part located on the second link 30 can exit from the rotating groove under the action of the winding force, making the chain structure 17 regain flexibility and gradually enter the spiral channel.

[0043] In some technical solutions of the present invention, a stabilizing beam 23 detachably connected to the chain structure 17 is installed on the side wall of the working platform 10. The stabilizing beam 23 is an overall frame structure, and an adjusting mechanism for driving the working platform 10 to reciprocate along its extending direction is provided on the stabilizing beam 23.

[0044] In some technical solutions of the present invention, the adjustment mechanism includes a fourth cylinder 22 installed on the stabilizing beam 23, a guide groove is provided on the side wall of the stabilizing beam 23, a guide block 25 connected to the working platform 10 is slidably provided in the guide groove, a fixing seat 24 connected to the working platform 10 is provided on the free end of the fourth cylinder 22, a sink groove is provided on the bottom of the guide groove, and a roller 26 connected to the guide block 25 is rotatably provided in the sink groove. Through the above structure, after the working platform 10 is lowered to the working plane by the lifting mechanism, the fourth cylinder 22 can force the working platform 10 to move along the extension direction of the stabilizing beam 23, change the construction position of the construction personnel, increase the range of the construction personnel's operation area, and speed up the construction progress.

[0045] In some technical solutions of the present invention, two third cylinders 21 connected to the cantilever beam 19 are installed on the side wall of the frame 3. By setting the two third cylinders 21, the relative position of the cantilever beam 19 on the frame 3 can be adjusted, thereby changing the working area of ​​the working platform 10.

[0046] In some technical solutions of the present invention, the fixing mechanism includes two suction cups 18 installed on the side wall of the stabilizing beam 23 away from the working platform 10. The suction cups 18 are circular or rectangular and can generate a large suction force. A flexible layered structure is attached to the adsorption surface of the suction cups 18. The layered structure is made of silicone and has good flexibility. When it is attached to a relatively rough wall surface, it can also be adsorbed on the wall surface, thereby improving the adaptability of the structure. A negative pressure device connected to the two suction cups 18 is provided on the frame 3. The negative pressure device provides a strong negative pressure effect for the suction cups 18, ensuring that the working platform 10 does not shake or move under the joint action of the above-mentioned structures, thereby improving the stability during operation.

[0047] In order to enhance stability, a hydraulic push rod connected to the suction cup member 18 is integrated on the side wall of the stabilizing beam 23. When there is a certain distance difference between the working platform 10 and the wall of the deep pit, the hydraulic push rod is used to push the suction cup member 18 toward the wall of the deep pit, thereby temporarily fixing the working platform 10 on the wall of the deep pit.

[0048] Repair method of pile structure between deep foundation pit retaining structure:

[0049] The method comprises the following steps: first, the working platform 10 is lifted to the area to be constructed by the lifting mechanism; then, the cantilever beam 19 pushes the working platform 10 out along its extension direction, so that the working platform 10 reaches the upper side of the pre-repairing position;

[0050] Next, the chain structure 17 and the lifting mechanism are started, and the two cooperate to control the working platform 10 to go deep into the deep foundation pit in the vertical direction until it is flush with the pre-repair position;

[0051] Then, the cantilever beam 19 is retracted onto the vehicle frame 3 by the third cylinder 21 and the working platform 10 is moved closer to the pre-repairing position; the fixing mechanism fixes the working platform 10 on the wall of the deep foundation pit;

[0052] Finally, construction work follows.

[0053] The pumping device 4 is fixed on the ground and is used to transport the slurry to the location to be repaired. The delivery end of the pumping device 4 is fixed on the working platform 10 .

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A construction platform device between piles of a deep foundation pit retaining structure, characterized in that: The invention comprises a working platform (10), a lifting mechanism and a cantilever beam (19), wherein the cantilever beam (19) is mounted on the main body of the lifting mechanism, the working platform (10) is detachably connected to the lifting end of the lifting mechanism, a chain structure (17) for guiding the working platform (10) to move in a vertical direction is mounted on the cantilever beam (19), the free end of the chain structure (17) is detachably connected to the working platform (10), a winding mechanism for winding up the chain structure (17) is provided on the cantilever beam (19), and a fixing mechanism for assisting in fixing the working platform (10) is provided between the chain structure (17) and the working platform (10).

2. A deep foundation pit retaining structure pile construction platform device according to claim 1, characterized in that: The lifting mechanism comprises a frame (3), a walking mechanism for walking is provided at the bottom of the frame (3), a boom structure is rotatably provided at the top of the frame (3), a fifth cylinder (34) is rotatably provided on the frame (3), a telescopic end of the fifth cylinder (34) is hinged to the boom structure, and a cable structure connected to the working platform (10) is provided on the telescopic end of the boom structure.

3. A deep foundation pit retaining structure pile construction platform device according to claim 2, characterized in that: The frame (3) is provided with a plurality of support mechanisms, the support mechanisms comprising a third support arm (33) rotatably arranged on the frame (3), a first support arm (11) rotatably arranged on the free end of the third support arm (33), a second support arm (12) slidably arranged inside the first support arm (11), a first cylinder (14) rotatably arranged on the frame (3) and connected to the third support arm (33), and a second cylinder (15) hingedly connected to the first support arm (11) is arranged on the third support arm (33).

4. A deep foundation pit retaining structure pile construction platform device according to claim 3, characterized in that: The chain structure (17) comprises a plurality of first chain links (29), a second chain link (30) being rotatably arranged between any two adjacent first chain links (29), a rotation groove being provided on both sides of the first chain link (29), a rotation part being provided on both sides of the second chain link (30), a shaft rod (32) being rotatably arranged in the rotation groove.

5. A deep foundation pit retaining structure inter-pile construction platform device according to claim 4, characterized in that: The winding mechanism comprises a loading mechanism (20) mounted on the cantilever beam (19), a guide member (16) is provided on the side wall of the cantilever beam (19), a free end of the chain structure (17) is passed through the guide member (16) and extends outward, the chain structure (17) is wound in the loading mechanism (20), a mounting frame (27) is mounted on the cantilever beam (19), a driving wheel (28) is rotatably provided on the mounting frame (27), a plurality of tooth blocks are arranged around the outer wall of the driving wheel (28), and limiting grooves (31) are provided on the outer side walls of the first chain link (29) and the second chain link (30), and a part of the tooth block is embedded in the limiting groove (31).

6. A deep foundation pit retaining structure pile construction platform device according to claim 5, characterized in that: A stabilizing beam (23) detachably connected to the chain structure (17) is mounted on the side wall of the working platform (10), and an adjusting mechanism for driving the working platform (10) to reciprocate along its extension direction is provided on the stabilizing beam (23).

7. A deep foundation pit retaining structure inter-pile construction platform device according to claim 6, characterized in that: The adjustment mechanism comprises a fourth cylinder (22) mounted on the stabilizing beam (23), a guide groove is provided on the side wall of the stabilizing beam (23), a guide block (25) connected to the working platform (10) is slidably provided in the guide groove, a fixing seat (24) connected to the working platform (10) is provided on the free end of the fourth cylinder (22), a sink groove is provided on the bottom of the guide groove, a roller (26) connected to the guide block (25) is rotatably provided in the sink groove.

8. The deep foundation pit retaining structure inter-pile construction platform device according to claim 2, characterized in that: Two third cylinders (21) connected to the cantilever beam (19) are installed on the side wall of the frame (3).

9. The deep foundation pit retaining structure inter-pile construction platform device according to claim 6, characterized in that: The fixing mechanism comprises two suction cup members (18) mounted on the side wall of the stabilizing beam (23) facing away from the working platform (10), a flexible layered structure is provided on the adsorption surface of the suction cup member (18), and a negative pressure device is provided on the frame (3) and is respectively connected to the two suction cup members (18).

10. A method for repairing the inter-pile structure of a deep foundation pit retaining structure, characterized in that: The deep foundation pit retaining structure pile construction platform device comprises the following construction steps: The working platform (10) is lifted to the area to be constructed by means of a lifting mechanism; the cantilever beam (19) is pushed by the third cylinder (21) to push the working platform (10) out along its extension direction, so that the working platform (10) reaches the upper side of the pre-repairing position; The chain structure (17) and the lifting mechanism are started, and the two cooperate to control the working platform (10) to go deep into the deep foundation pit along the vertical direction until it is flush with the pre-repair position; Next, the cantilever beam (19) is retracted onto the vehicle frame (3) through the third cylinder (21) and the working platform (10) is moved closer to the pre-repairing position; the fixing mechanism fixes the working platform (10) on the wall surface of the deep foundation pit; Finally, construction work is carried out.

Images