Circulating creeping formwork device for excavation and lining of extra-large vertical shaft and climbing method

Abstract

The invention discloses a circulating creeping formwork device for excavation and lining of an extra-large vertical shaft and a climbing method.The circulating creeping formwork device for excavation and lining of the extra-large vertical shaft comprises a formwork and a hanging bracket; the formwork comprises a bottom plate, a formwork piece and an upper construction platform, the lower end of the formwork piece is connected with the bottom plate through a fine adjustment piece, and the upper end of the formwork piece is detachably connected with the upper construction platform. The hanging bracket comprises a supporting frame connected with the bottom plate and a selectively-arranged lower construction platform, and when the lower construction platform is arranged, the upper end of the supporting frame is connected with the bottom plate, and the lower end of the supporting frame is connected with the lower construction platform. The climbing method is based on the circulating climbing formwork device for excavation and lining of the extra-large vertical shaft. The formwork piece is connected with the bottom plate through the fine adjustment piece, namely, the position of the formwork piece can be adjusted so as to meet different pouring requirements, and the transferring performance of the formwork piece is improved. Through the design of the hanging bracket, the formwork provides a support located on the lower portion, the number of connecting points between the formwork and the inner wall of the vertical shaft is increased, the safety of the formwork is effectively improved, and climbing formwork construction can be conveniently implemented.

Description

Technical Field

[0001] The present invention relates to the technical field of formwork construction, and particularly relates to a circulating climbing formwork device and a climbing method for the excavation and lining of extra-large vertical shafts. Background Art

[0002] A vertical shaft is a well-shaped pipeline with vertical walls, and is actually a collapse funnel. During the construction of a vertical shaft, formwork construction is often used to achieve the pouring of concrete. The defects of the existing formwork structure are as follows: The formwork is a customized product, with poor transfer performance and narrow application scenarios; and for the vertical shaft construction scenario, its safety is poor and it is difficult to achieve climbing formwork construction. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the existing formwork structure has poor special performance and is difficult to achieve climbing formwork. The purpose is to provide a circulating climbing formwork device and a climbing method for the excavation and lining of extra-large vertical shafts to solve the above problems.

[0004] The present invention is realized by the following technical solutions:

[0005] In a first aspect, the present invention provides a circulating climbing formwork device for the excavation and lining of extra-large vertical shafts, including a formwork and a hanging bracket;

[0006] The formwork includes a bottom plate, a formwork member and an upper construction platform connected in sequence, and the lower end of the formwork member is connected to the bottom plate through a fine-tuning member, and the upper end of the formwork member is detachably connected to the upper construction platform;

[0007] The hanging bracket includes a support frame connected to the bottom plate and an optionally provided lower construction platform. When the lower construction platform is provided, the upper end of the support frame is connected to the bottom plate, and the lower end of the support frame is connected to the lower construction platform.

[0008] In a possible design, the bottom plate includes a base plate, side plates and platform beams;

[0009] The base plate has opposite ends, one of which is configured as a working end for connecting to the inner wall of the vertical shaft, and the other end is configured as a free end. The base plate has two side edges between the working end and the free end, and the two side edges are opposite and each is connected to a side plate, correspondingly, there are two side plates;

[0010] The side plates are provided with adjustment holes or adjustment grooves for connecting the fine-tuning members; there are several platform beams and they are evenly distributed on the bottom surface of the base plate;

[0011] Correspondingly, the connection part of the formwork member and the bottom plate is close to the working end of the base plate, and a diagonal brace for connecting the formwork member is provided at the free end of the base plate.

[0012] In a possible design, the formwork member includes a main back brace and a formwork body;

[0013] The main back brace has two opposite outer surfaces, one of which is connected to the template body through a support, and the other is provided with an additional rod and connected to the diagonal brace; correspondingly, the lower end of the main back brace is connected to the bottom plate through a fine-tuning member, and the upper end of the main back brace is connected to the upper construction platform through a sector plate;

[0014] A lifting hook is provided at the upper end of the template body, and the lower end of the template body is connected to the additional rod through an adjusting seat. Correspondingly, the adjusting seat is used to adjust the height of the template body.

[0015] In a possible design, a studded film is provided on the outer surface of the template body facing the inner wall surface of the shaft, and a plurality of connecting members for connecting the studded film are provided on the template body;

[0016] The connecting member includes a studded film hole, an outer frame plate, an intermediate inlay, and a connecting bolt. The studded film hole is located on the template body. The outer frame plate is fixed on the outer surface of the template body facing away from the inner wall surface of the shaft, and the outer frame plate covers the studded film hole. An intermediate inlay is placed inside the outer frame plate. One end of the connecting bolt is connected to the studded film, and the other end sequentially passes through the intermediate inlay and the outer frame plate and is connected with a locking nut.

[0017] In a possible design, the upper construction platform includes a platform cross beam, a platform plate, and a guardrail; one end of the platform cross beam is detachably connected to the sector plate, and the other end of the platform cross beam extends outward; the platform plate is connected to the platform cross beam and is located above the platform cross beam, and the guardrail is connected to the platform plate and is located above the outer extension end of the platform cross beam.

[0018] In a possible design, the fine-tuning member includes a fine-tuning seat and a fixing bolt. The fine-tuning seat is slidably arranged on the base plate and is connected to the lower end of the main back brace. The two ends of the fine-tuning seat respectively abut against the side plates. The fixing bolt is arranged through the two ends of the fine-tuning seat and is detachably connected to the side plates. Correspondingly, a plurality of adjusting holes adapted to the fixing bolt are provided on the side plates.

[0019] In a possible design, the fine-tuning member includes a housing, a driving member, and a first telescopic rod;

[0020] The housing is connected to the base plate through an intermediate strip and is located below the base plate. The driving member is arranged inside the housing and is used to drive the first telescopic rod to expand and contract;

[0021] The first telescopic rod includes an outer cylinder, a rotating rod, and an inner cylinder. Among them, the outer cylinder is arranged inside the housing; the rotating rod is rotatably arranged inside the outer cylinder. One end of the rotating rod is connected to the driving member, and the other end of the rotating rod is provided with a driving block. Two symmetrically arranged spiral plates are provided on the outer periphery of the driving block; the inner cylinder is slidably arranged on the outer cylinder. The lower end of the inner cylinder abuts against the outer cylinder through a spring. The upper end of the inner cylinder is used to connect the main back brace. Two driving rods are provided on the inner periphery of the inner cylinder. Correspondingly, when the driving rod abuts against the bottom surface of the spiral plate, the inner cylinder moves downward and retracts into the outer cylinder as the driving block rotates. When the driving rod disengages from the spiral plate, the inner cylinder is bounced up by the spring and extends outward;

[0022] Accordingly, a plurality of first telescopic rods are provided;

[0023] Accordingly, a base for connecting the first telescopic rod is provided at the lower end of the main back brace. A first card slot adapted to the inner cylinder is provided on the base, a second card slot communicating with the first card slot is provided on the base plate, and an adjustment slot is provided on the side plate.

[0024] In a possible design, the driving member includes a plurality of driving motors;

[0025] Alternatively, the driving member includes a driving motor and a plurality of transmission gears. Each transmission gear includes a first transmission gear, two second transmission gears, and four third transmission gears that are sequentially engaged. The first transmission gear is connected to the driving motor. The second transmission gear includes a first tooth ring for connecting the first transmission gear and a second tooth ring for connecting the third transmission gear. The third transmission gears are respectively connected to the first telescopic rods.

[0026] In a possible design, the support frame is selected as a tripod, and the structure of the lower construction platform is the same as that of the upper construction platform.

[0027] In a second aspect, the present invention provides a climbing method for a circulating climbing formwork device for the excavation and lining of an extra-large vertical shaft, including the following steps:

[0028] S10 Construction preparation;

[0029] S20 Construction at the bottom of the vertical shaft;

[0030] S30 Construction of the shaft wall: Formwork assembly; Hoisting to the designated position for form erection; Adjusting the inclined struts and adjusting seats and then fixing; Repeating the above steps until a plurality of formworks are installed; Pouring concrete; Hanger assembly; Lifting the formwork, and installing the hanger at the original formwork position; Installing the formwork above the hanger; Pouring concrete again;

[0031] S40 Formwork climbing: When the concrete reaches the form removal strength, remove the formwork; Hoist the formwork upward; Fix the formwork again; Pour concrete for the upper layer; Repair the concrete for the lower layer;

[0032] S50 Repeat S40 until the construction of the vertical shaft is completed.

[0033] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0034] The formwork member is connected to the bottom plate through the fine adjustment member, that is, the position of the formwork member can be adjusted to adapt to different pouring requirements, which helps to expand the scope of use and improve the transfer performance of the formwork member. Through the design of the hanger, on the one hand, it provides support below, and on the other hand, it increases the connection points with the inner wall of the vertical shaft, effectively improving the safety of the formwork. For climbing formwork construction, the safety is effectively guaranteed, which is convenient for implementing climbing formwork construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings. In the drawings:

[0036] Figure 1 It is a structural schematic diagram of a circulating climbing formwork device for the excavation and lining of an extra-large shaft.

[0037] Figure 2 It is a structural schematic diagram of the formwork assembly in S30.

[0038] Figure 3 It is a structural schematic diagram of the formwork after assembly in S30.

[0039] Figure 4 It is a structural schematic diagram of the studded film and the connecting piece.

[0040] Figure 5 It is a structural schematic diagram of the fine-tuning member in the first implementation scheme.

[0041] Figure 6 It is a structural schematic diagram of the fine-tuning member in the second implementation scheme.

[0042] Figure 7 For Figure 6 in, the structural schematic diagram of a single first telescopic rod.

[0043] Figure 8 It is a structural schematic diagram of the driving member of the fine-tuning member in the second implementation scheme.

[0044] Figure 9 It is a structural schematic diagram when there is a baffle on the convex block.

[0045] Figure 10 It is a structural schematic diagram of the plate body.

[0046] Figure 11 It is a matching schematic diagram of the second telescopic rod and the plate body.

[0047] Figure 12 It is a structural schematic diagram of the formwork after hoisting in S30.

[0048] Figure 13 It is a structural schematic diagram of the removal of the positioning bolt.

[0049] Figure 14 It is a structural schematic diagram of the installation of the stress bolt.

[0050] Figure 15 The structural schematic diagram of the formwork after installing the support frame.

[0051] Figure 16 The structural schematic diagram during the re-pouring of concrete in S30.

[0052] Figure 17 The flow chart of S40.

[0053] Markings in the attached drawings and corresponding component names:

[0054] 1. Bottom plate; 11. Base plate; 12. Side plate; 13. Platform beam; 2. Formwork member; 21. Main back brace; 22. Formwork body; 201. Support; 202. Additional member; 203. Sector plate; 204. Hook; 205. Adjusting seat; 3. Upper construction platform; 31. Platform cross beam; 32. Platform plate; 33. Guardrail; 4. Support frame; 5. Lower construction platform; 6. Diagonal brace; 7. Fine adjustment member; 701. Fine adjustment seat; 702. Fixed bolt; 703. Housing; 704. Driving member; 705. First telescopic rod; 706. Outer cylinder; 707. Rotating rod; 708. Inner cylinder; 709. Driving block; 710. Spiral plate; 711. Spring; 712. Driving rod; 713. First transmission gear; 714. Second transmission gear; 715. Third transmission gear; 716. Outer convex block; 717. Baffle; 718. Plate body; 719. Second telescopic rod; 720. Blocking surface; 721. Transition section; 722. Blocking section; 723. Arc section; 724. Ratchet; 725. Internal gear ring; 8. Nailing film; 9. Connecting member; 901. Nailing film hole; 902. Outer frame plate; 903. Intermediate inlay; 904. Connecting bolt. Detailed implementation manners

[0055] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with embodiments and the attached drawings. The illustrative embodiments of the present invention and their descriptions are only used to explain the present invention and do not limit the present invention.

[0056] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is obvious to those of ordinary skill in the art that: It is not necessary to adopt these specific details to implement the present invention. In other embodiments, well-known structures, circuits, materials or methods are not specifically described in order to avoid obscuring the present invention.

[0057] Throughout the specification, references to "one embodiment", "an embodiment", "an example" or "an example" mean that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present invention. Thus, the phrases "one embodiment", "an embodiment", "an example" or "an example" appearing throughout the specification do not necessarily all refer to the same embodiment or example. In addition, the particular features, structures, or characteristics may be combined in any suitable combination and / or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will understand that the diagrams provided herein are for illustrative purposes only and are not necessarily drawn to scale. The term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0058] In the description of the present invention, the orientation or positional relationship indicated by the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the protection scope of the present invention.

[0059] Embodiment 1:

[0060] As Figures 1-17 shown, a cyclic climbing formwork device for the excavation and lining of an extra-large shaft includes a formwork and a hanging bracket;

[0061] The formwork includes a bottom plate 1, a formwork member 2, and an upper construction platform 3 that are connected in sequence. The lower end of the formwork member 2 is connected to the bottom plate 1 through a fine-tuning member 7, and the upper end of the formwork member 2 is detachably connected to the upper construction platform 3;

[0062] The hanging bracket includes a support frame 4 connected to the bottom plate 1 and an optionally provided lower construction platform 5. When the lower construction platform 5 is provided, the upper end of the support frame 4 is connected to the bottom plate 1, and the lower end of the support frame 4 is connected to the lower construction platform 5.

[0063] In the cyclic climbing formwork device for the excavation and lining of the extra-large shaft, the formwork is used to realize concrete pouring. That is, through the cooperation of multiple formworks, an annular structure adapted to the shape of the shaft is formed inside the shaft, and the pouring gap for pouring concrete is located between the annular structure and the inner wall of the shaft. Specifically for the formwork, the formwork member 2 is used to form the pouring gap. The upper and lower ends of the formwork member 2 are respectively connected to the upper construction platform 3 and the bottom plate 1. The upper construction platform 3 is for the use of workers to complete relevant operations. The bottom plate 1 is used to fix the formwork. At the same time, the three are connected to each other to improve the structural strength of the formwork, ensure that the formwork has sufficient stability, stiffness and strength, and has sufficient sealing performance, can withstand the lateral pressure and vibration force of concrete entering the bin and vibration, and control the formwork displacement within the scope of specifications and design requirements to ensure the accuracy of the external dimensions of the concrete structure.

[0064] The hanger further enhances the structural strength of the formwork through the support frame 4, especially after climbing, to ensure that the cyclic climbing formwork device for the excavation and lining of the extra-large shaft has sufficient structural strength, so that the cyclic climbing formwork device for the excavation and lining of the extra-large shaft can be used for climbing formwork operations. The lower construction platform 5 is used to increase the working space of workers. When other operations need to be carried out on the already poured concrete, the workers can carry out relevant operations on the lower construction platform 5, and at the same time wait for the concrete above to solidify to the design strength, so as to reduce the construction period.

[0065] Compared with the prior art, in the cyclic climbing formwork device for the excavation and lining of the extra-large shaft, the formwork member 2 is connected to the bottom plate 1 through the fine-tuning member 7, that is, the formwork member 2 can adjust its position to adapt to different pouring requirements, which helps to expand the scope of use and improve the transfer performance of the formwork member 2. Through the design of the hanger for the formwork, on the one hand, it provides support below, and on the other hand, it increases the connection points with the inner wall of the shaft, effectively improving the safety of the formwork. For climbing formwork construction, the safety is effectively guaranteed, so as to facilitate the implementation of climbing formwork construction.

[0066] In a possible implementation manner, the bottom plate 1 includes a base plate 11, side plates 12 and platform beams 13;

[0067] The base plate 11 has opposite ends, one of which is configured as a working end for connecting to the inner wall of the shaft, and the other end is configured as a free end. The base plate 11 has two side edges between the working end and the free end, and the two side edges are opposite and each is connected to a side plate 12. Accordingly, there are two side plates 12;

[0068] The side plate 12 is provided with adjustment holes or adjustment grooves for connecting the fine-tuning member 7; there are several platform beams 13 and they are evenly distributed on the bottom surface of the base plate 11;

[0069] Accordingly, the connection part of the formwork member 2 and the bottom plate 1 is close to the working end of the base plate 11, and a diagonal brace 6 for connecting the formwork member 2 is provided at the free end of the base plate 11.

[0070] Based on the above design solution, the substrate 11 can be selected from any suitable existing plate materials, and the present invention does not impose any restrictions on this. On the one hand, the side plate 12 can increase the contact area between the formwork and the bottom plate 1, making the horizontal deviation between two adjacent formwork members 2 smaller. On the other hand, it is used to connect the fine-tuning member 7 to realize the adjustment of the position of the formwork member 2, expanding the scope of use of the formwork. The platform beam 13 is used to further improve the structural strength of the bottom plate 1 to ensure safety; moreover, the platform beam 13 can also be selected from any suitable existing models, with a wide selection range and good practicability.

[0071] Furthermore, a diagonal brace 6 is also provided on the substrate 11. The substrate 11 is connected to the formwork member 2 through the diagonal brace 6, effectively improving the overall structural strength of the formwork; and the diagonal brace 6 is preferably of a type with adjustable length. Based on this, by adjusting the length of the diagonal brace 6, the perpendicularity of the formwork member 2 can be adjusted, which helps to improve the pouring quality.

[0072] Optionally, as Figure 1 shown, when necessary, the staff can also move onto the bottom plate 1 for operation. At this time, a guardrail 33 is provided at the free end of the substrate 11 to form protection and improve the safety of the operation.

[0073] Optionally, as Figure 5 shown, the working end of the substrate 11 is connected to the inner wall surface of the shaft through a positioning bolt. Correspondingly, an adapted embedded part structure is provided on the shaft. Correspondingly, the embedded part structure is arranged in the solidified concrete. After the cyclic climbing formwork device for the excavation and lining of the extra-large shaft climbs, the embedded part structure is removed and the climbing cone hole is repaired.

[0074] In a possible implementation manner, the formwork member 2 includes a main backing rib 21 and a formwork body 22;

[0075] The main backing rib 21 has two opposite outer surfaces, one of which is connected to the formwork body 22 through a support 201, and the other is provided with an additional rod 202 and is connected to the diagonal brace 6; correspondingly, the lower end of the main backing rib 21 is connected to the bottom plate 1 through a fine-tuning member 7, and the upper end of the main backing rib 21 is connected to the upper construction platform 3 through a sector plate 203;

[0076] The upper end of the formwork body 22 is provided with a lifting hook 204, and the lower end of the formwork body 22 is connected to the additional rod 202 through an adjusting seat 205. Correspondingly, the adjusting seat 205 is used to adjust the height of the formwork body 22.

[0077] Based on the above design, the main back ribs 21 are made of any suitable pipe material, and the adjacent pipes are connected by fasteners. The additional members 202 are used to form additional force application points, so that the formwork member 2 can be more conveniently grasped during operations such as assembly and transfer, making the relevant operations more convenient. The formwork body 22 is preferably made of a steel formwork with sufficient strength and stiffness. During production, ensure the body size, surface flatness, smoothness, and tightness of the formwork panel, and the joints between the formworks are tight; based on this, ensure that the requirements for the appearance shape of the concrete and the surface flatness and smoothness of the curved surface are met.

[0078] At the same time, when used for shaft climbing formwork construction, the two end heads of the formwork body 22 adopt a steel-wood combined structure to complete the sealing of the concrete bin number, improve the tightness, and reduce leakage. Based on this, the main part of the formwork body 22 is made of steel, and the two end heads adopt a steel-wood combined structure.

[0079] The main back ribs 21 are connected to the formwork body 22 through a number of supports 201. The supports 201 can be constructed into any suitable shape, and the supports 201 make there be a gap between the main back ribs 21 and the formwork body 22, which is convenient for adjusting the position of the formwork body 22, helps to enhance the stability of the structure, and can also adapt to the deformation caused by the setting and thermal expansion and contraction of the concrete, improving the service life of the formwork member 2.

[0080] A lifting hook 204 is provided on the formwork body 22. When climbing operations are carried out, the hoisting equipment is connected to the circulating climbing formwork device for extra-large shaft excavation and lining through the lifting hook 204, so as to lift the circulating climbing formwork device for extra-large shaft excavation and lining and achieve climbing.

[0081] In a possible implementation manner, an embedded nail film 8 is provided on the outer surface of the formwork body 22 facing the inner wall surface of the shaft, and a number of connectors 9 for connecting the embedded nail film 8 are provided on the formwork body 22;

[0082] The connector 9 includes an embedded nail film hole 901, an outer frame plate 902, an intermediate inlay 903, and a connecting bolt 904. The embedded nail film hole 901 is located on the formwork body 22. The outer frame plate 902 is fixed on the outer surface of the formwork body 22 facing away from the inner wall surface of the shaft, and the outer frame plate 902 covers the embedded nail film hole 901. The intermediate inlay 903 is placed inside the outer frame plate 902. One end of the connecting bolt 904 is connected to the embedded nail film 8, and the other end sequentially passes through the intermediate inlay 903, the outer frame plate 902 and is connected with a locking nut.

[0083] Based on the above design, the embedded nail film 8 helps to improve the stability of the concrete, forms a barrier through the embedded nail film 8 to prevent the deformation and settlement of the concrete; at the same time, the embedded nail film 8 also plays a role in preventing water penetration, realizes effective isolation, and ensures the stability and safety of the construction; in addition, the embedded nail film 8 can also play a role in isolating pollutants and preventing the surrounding environment from being damaged due to construction operations.

[0084] Furthermore, the studded membrane 8 is fixed to the formwork body 22 by a plurality of connecting members 9. The construction of the studded membrane 8 is completed while pouring concrete, which helps to reduce processes and improve construction efficiency. For the connecting member 9, a studded membrane hole 901 is formed in the formwork body 22, and each component on the outer surface of the formwork body 22 facing away from the inner wall surface of the shaft can be connected to the studded membrane 8. That is, the space range is restricted by the outer frame plate 902 and connection points are provided for the connection bolts 904, so that the studded membrane 8 is connected and fixed by the connection bolts 904, and the gap is filled by the intermediate inlay 903 to prevent concrete intrusion and ensure the smooth outer surface of the concrete, reducing subsequent repairs.

[0085] It should be noted that the gap between the studded membrane 8 and the formwork body 22 is filled and sealed with a rubber strip to prevent slurry leakage. A plurality of connecting members 9 are respectively provided at the upper and lower ends of the formwork body 22 to fix the studded membrane 8. When the cyclic climbing formwork device for large shaft excavation and lining climbs, attention should be paid to separating the formwork body 22 from the studded membrane 8; after the cyclic climbing formwork device for large shaft excavation and lining climbs, the studded membrane 8 is first laid, and then concrete is poured.

[0086] In a possible implementation manner, the upper construction platform 3 includes a platform cross beam 31, a platform plate 32 and a guardrail 33; one end of the platform cross beam 31 is detachably connected to the fan-shaped plate 203, and the other end of the platform cross beam 31 extends outwards; the platform plate 32 is connected to the platform cross beam 31 and is located above the platform cross beam 31, and the guardrail 33 is connected to the platform plate 32 and is located above the outer extension end of the platform cross beam 31.

[0087] Based on the above design, the platform cross beam 31 is connected to the main back rib 21 through the fan-shaped plate 203, so that the platform cross beam 31 can rotate at a certain angle relative to the fan-shaped plate 203. When the formwork member 2 is inclined, the upper construction platform 3 can remain horizontal, providing a better working environment for the staff. The platform plate 32 can be selected from any suitable existing plates, and the guardrail 33 plays a protective role and improves the construction safety.

[0088] In a possible implementation manner, the fine-tuning member 7 includes a fine-tuning base 701 and a fixing bolt 702. The fine-tuning base 701 is slidably arranged on the base plate 11 and is connected to the lower end of the main back rib 21. Both ends of the fine-tuning base 701 respectively abut against the side plates 12. The fixing bolt 702 is inserted through both ends of the fine-tuning base 701 and is detachably connected to the side plates 12. Correspondingly, a plurality of adjustment holes adapted to the fixing bolt 702 are provided on the side plates 12.

[0089] Based on the above design solution, the formwork member 2 is pushed and pulled by the additional rod member 202 on the main back rib 21, so that both the formwork member 2 and the fine-tuning base 701 slide relative to the bottom plate 1 until the formwork member 2 moves to the designed position, and then the position of the formwork member 2 is fixed by the fixing bolt 702. At this time, the structure of the fine-tuning member 7 is simple and the operation is convenient. However, considering that the position where the formwork member 2 moves must be the position where the fixing bolt 702 is aligned with the adjustment hole, that is, it realizes stepwise adjustment and the adjustment range is relatively limited.

[0090] Therefore, in another possible implementation, the fine-tuning member 7 includes a housing 703, a driving member 704 and a first telescopic rod 705;

[0091] The housing 703 is connected to the base plate 11 through an intermediate strip and is located below the base plate 11. The driving member 704 is arranged in the housing 703 and is used to drive the first telescopic rod 705 to expand and contract;

[0092] The first telescopic rod 705 includes an outer cylinder 706, a rotating rod 707 and an inner cylinder 708. Among them, the outer cylinder 706 is arranged in the housing 703; the rotating rod 707 is rotatably arranged in the outer cylinder 706. One end of the rotating rod 707 is connected to the driving member 704, and the other end of the rotating rod 707 is provided with a driving block 709. Two symmetrically arranged spiral plates 710 are provided on the outer periphery of the driving block 709; the inner cylinder 708 is slidably arranged on the outer cylinder 706. The lower end of the inner cylinder 708 abuts against the outer cylinder 706 through a spring 711. The upper end of the inner cylinder 708 is used to connect the main back rib 21. Two driving rods 712 are provided on the inner periphery of the inner cylinder 708. Correspondingly, when the driving rod 712 abuts against the bottom surface of the spiral plate 710, the inner cylinder 708 moves downward and retracts into the outer cylinder 706 along with the rotation of the driving block 709. When the driving rod 712 disengages from the spiral plate 710, the inner cylinder 708 is bounced up by the spring 711 and extends outward;

[0093] Correspondingly, a plurality of the first telescopic rods 705 are provided;

[0094] Correspondingly, a base for connecting the first telescopic rod 705 is provided at the lower end of the main back rib 21. A first card slot adapted to the inner cylinder 708 is provided on the base, a second card slot communicating with the first card slot is provided on the base plate 11, and an adjustment slot is provided on the side plate 12.

[0095] Based on the above design solution, driven by the driving member 704, the first telescopic rod 705 contracts, the connection between the formwork member 2 and the first telescopic rod 705 is released, so that the formwork member 2 can move relative to the bottom plate 1; and in cooperation with the first card slot and the second card slot, there is no need to worry about being unable to fasten due to misalignment of the adjustment hole, realizing stepless adjustment. When the formwork member 2 moves to a suitable position, the driving member 704 drives the first telescopic rod 705 to extend outward again. The first telescopic rod 705 passes through the second card slot and is inserted into the first card slot to fix the position of the formwork member 2.

[0096] Meanwhile, multiple first telescopic rods 705 are cooperated with each other. Correspondingly, a plurality of first clamping grooves and second clamping grooves are respectively provided to increase the number of fixing points and ensure the fixing effect.

[0097] As Figure 6 and Figure 7 shown, further explanation is made in combination with the structure of the first telescopic rod 705. The rotating rod 707 is connected to the driving member 704 and rotates. The driving block 709 on the rotating rod 707 follows the movement, and also makes the spiral plate 710 outside the driving block 709 rotate. The inner cylinder 708 is connected to the driving block 709 through the driving rod 712. That is, when the driving rod 712 abuts against the bottom surface of the spiral plate 710, the inner cylinder 708 moves downward and retracts into the outer cylinder 706 following the rotation of the driving block 709. At this time, by controlling the spiral direction of the spiral plate 710, the driving rod 712 moves downward, and the contraction of the inner cylinder 708 is also realized. The spring 711 is also compressed and deformed. Thus, the first telescopic rod 705 contracts and disengages from the template member 2.

[0098] On the contrary, when the driving rod 712 disengages from the spiral plate 710, the inner cylinder 708 is bounced up and extended by the spring 711. At this time, since there is a gap between the two spiral plates 710, when the driving block 709 rotates to the gap, the driving rod 712 will disengage from the spiral plate 710 and enter the gap. The inner cylinder 708 and the driving rod 712 will move upward under the action of the spring 711, and the first telescopic rod 705 extends and connects to the template member 2.

[0099] When the inner cylinder 708 needs to contract, the transmission rod keeps rotating, then the two driving rods 712 will contact the spiral plate 710 again, and further realize the contraction of the inner cylinder 708, and the first telescopic rod 705 contracts and disengages from the template member 2. Based on this, the driving member 704 rotates in one direction to control the expansion and contraction of the first telescopic rod 705, without the need for the driving member 704 to rotate reciprocally.

[0100] Based on this, by controlling the movement of multiple first telescopic rods 705 through the driving member 704, there is no need for staff to manually tighten or loosen the fixing bolts 702, reducing manual participation and making the movement and fixation of the template member 2 more efficient.

[0101] Preferably, an outer convex block 716 is provided outside the driving block 709, and the lower surface of the outer convex block 716 is configured as a spiral surface for contacting the driving rod 712, that is, the outer convex block 716 replaces the spiral plate 710 to improve the service life by increasing the volume.

[0102] It is easy to understand that two implementation schemes of the fine-tuning member 7 are given in this embodiment, and the staff can select as needed to adapt to the actual construction requirements.

[0103] In a possible implementation manner, the driving member 704 includes a plurality of driving motors;

[0104] Alternatively, as Figure 8 shown, the driving member 704 includes a driving motor and a plurality of transmission gears. Each transmission gear includes a first transmission gear 713, two second transmission gears 714, and four third transmission gears 715 that are sequentially engaged. The first transmission gear 713 is connected to the driving motor. The second transmission gear 714 includes a first toothed ring for connecting the first transmission gear 713 and a second toothed ring for connecting the third transmission gear 715. The third transmission gears 715 are respectively connected to the first telescopic rod 705.

[0105] Based on the above design solution, a number of driving motors are designed, and each driving motor is connected to a first telescopic rod 705. This structure is simple, but the number of driving motors used is relatively large.

[0106] Or, a transmission structure is formed by a plurality of transmission gears, and then a plurality of first telescopic rods 705 are controlled by the same driving motor, reducing the usage amount of the driving motor.

[0107] Furthermore, the staff can select as needed to adapt to different construction requirements.

[0108] It should be noted that when the driving rod 712 moves to the lower end of the spiral surface, the outer extension length of the inner cylinder 708 reaches the maximum, and the effect of the inner cylinder 708 fixing the template body 22 is the best. However, at this time, although the driving member 704 stops rotating, the driving rod 712 has a tendency to disengage from the spiral surface. Especially after long-term use, both the driving rod 712 and the spiral surface become smoother due to long-term friction. To avoid misoperation of the driving rod 712, as Figure 9 shown, when the driving block 709 is provided with an outer convex block 716, a baffle 717 for blocking the driving rod 712 is provided at the lower end of the spiral surface of the outer convex block 716. The baffle 717 is rotatably arranged on the outer convex block 716. Correspondingly, the baffle 717 has a blocking position extending below the spiral surface and a release position rotating to the outside of the outer convex block 716.

[0109] Based on the above design solution, the baffle 717 takes the blocking position as the initial position. When the driving rod 712 moves to the lower end of the spiral surface, the driving rod 712 will be blocked by the baffle 717, and then the driving rod 712 is limited by the baffle 717 to prevent the driving rod 712 from sliding out of the spiral surface, ensuring that the inner cylinder 708 is stably in the extended state and has a good fixing effect. When the inner cylinder 708 retracts, the baffle 717 rotates to the release position, and the driving member 704 rotates to make the driving rod 712 rotate relative to and disengage from the baffle 717; the inner cylinder 708 loses the blocking of the driving rod 712 and retracts into the outer cylinder 706 under the action of the spring 711.

[0110] Optionally, as Figures 9-11 shown, the baffle 717 includes a plate body 718 and a second telescopic rod 719;

[0111] The upper structure of the plate body 718 is a connection area rotatably connected to the outer convex block 716 by a torsion spring. The lower structure of the plate body 718 is a blocking area extending outside the outer convex block 716. The blocking area has a blocking surface 720 facing the driving rod 712. The blocking surface 720 includes a transition section 721, a blocking section 722, and an arc section 723 connected in sequence. The transition section 721 is configured as a curved surface adapted to the spiral surface. The blocking section 722 is configured as an arc surface adapted to the driving rod 712. The thickness of the arc section 723 is less than that of the transition section 721. When the baffle 717 is in the release position, the moving height of the driving rod 712 is reduced.

[0112] The second telescopic rod 719 is fixed on the outer convex block 716. The working end of the second telescopic rod 719 passes through the connection area of the plate body 718, and a ratchet 724 for restricting the rotation of the plate body 718 is provided on the working end of the second telescopic rod 719. Correspondingly, an internal gear ring 725 adapted to the ratchet 724 is provided in the connection area of the plate body 718. When the second telescopic rod 719 extends, the second telescopic rod 719 connects the plate body 718 through the ratchet 724 and fixes the plate body 718. When the second telescopic rod 719 contracts, the ratchet 724 disengages from the plate body 718 so that the plate body 718 can rotate.

[0113] Correspondingly, a first groove adapted to the plate body 718, a second groove adapted to the second telescopic rod 719, and a third groove for the reciprocating movement of the ratchet 724 are provided on the outer convex block 716.

[0114] Based on the above design, the plate body 718 is fixed below the spiral surface by a torsion spring. At this time, the second telescopic rod 719 extends so that the internal gear ring 725 of the plate body 718 meshes with the ratchet 724, thereby fixing the baffle 717 in the blocking position. Since the ratchet 724 and the internal gear ring 725 resist each other, even if the driving force of the driving member 704 is greater than the elastic force of the torsion spring, the plate body 718 will not rotate, ensuring that the baffle 717 is in the blocking position.

[0115] Further, when the driving rod 712 moves along the spiral surface to the plate body 718, the driving rod 712 will contact the blocking surface 720, that is, move from the transition section 721 to the blocking section 722. The transition section 721 is adapted to the spiral surface to reduce vibration during movement and protect each component. The blocking section 722 is adapted to the driving rod 712 to make the contact between the driving rod 712 and the plate body 718 more stable.

[0116] When the inner cylinder 708 retracts, the second telescopic rod 719 contracts to disengage the ratchet wheel 724 from the plate body 718. The driving member 704 is activated to drive the driving rod 712 to move. The driving rod 712 overcomes the elastic force of the torsion spring and causes the plate body 718 to rotate, so that the baffle 717 rotates to the release position. At this time, the driving rod 712 also disengages from the blocking section 722 and slides along the arc section 723, and the thickness of the arc section 723 is small, reducing the difficulty for the driving rod 712 to disengage from the plate body 718. After the driving rod 712 disengages from the plate body 718, the plate body 718 will reset under the action of the elastic force of the torsion spring, and the telescopic rod extends outwards again to engage the internal gear ring 725 of the plate body 718 with the ratchet wheel 724, thereby fixing the baffle 717 at the blocking position.

[0117] In a possible implementation, the support frame 4 is selected as a tripod, and the structure of the lower construction platform 5 is the same as that of the upper construction platform 3. Based on the above design scheme, the structure of the support frame 4 is simple, and the lower construction platform 5 can be converted from the upper construction platform 3, which helps to reduce the construction cost.

[0118] Embodiment 2:

[0119] Based on Embodiment 1, this embodiment introduces a climbing method for the circulating climbing formwork device for the excavation and lining of the super-large shaft, as Figures 1-17 shown. The climbing method includes the following steps:

[0120] S10 Construction preparation;

[0121] S20 Construction at the bottom of the shaft;

[0122] S30 Construction of the shaft wall: Formwork assembly; Hoisting to the designated position for form erection; Adjusting the inclined strut 6 and the adjusting seat 205 and then fixing; Repeating the above steps until several formworks are installed; Pouring concrete; Hanger assembly; Lifting the formwork, and installing the hanger at the original formwork position; Installing the formwork above the hanger; Pouring concrete again;

[0123] S40 Formwork climbing: When the concrete reaches the form removal strength, remove the formwork; Hoist the formwork upwards; Fix the formwork again; Pour concrete for the upper layer; Repair the concrete for the lower layer;

[0124] S50 Repeat S40 until the shaft construction is completed.

[0125] Among them, in S10, the preparation work includes but is not limited to relevant design work, acceptance of materials (such as steel bars and embedded parts structures), cleaning of the (shaft) surface, taking of image data, arrangement of processes, etc. At the same time, the construction site also needs to be measured and set out, and the surveyor measures and sets out the control points of the formwork edge line and marks them with paint or a stone pen. After the installation of each formwork is completed, the surveyor reviews the formwork positioning, formwork flatness and perpendicularity. After the formwork is corrected, the formwork measurement results are formed and field visas are carried out.

[0126] In S20, the bottom of the shaft is supported by a quick-closing mesh non-disassembly formwork, which is used as a consumable formwork. The non-disassembly formwork is made of galvanized steel plates of the quick-closing mesh. A complete quick-closing mesh consists of two parts: a raised V-shaped mesh frame and a raised mesh surface of the corner piece between every two mesh frames.

[0127] The V-shaped mesh is the main source of strength for the entire non-dismantling formwork, greatly increasing the ability of the non-dismantling formwork to withstand lateral pressure. The raised corner mesh has the function of strengthening the bond between the steel mesh and the concrete. Therefore, in order to form a mechanical wedge joint at the construction joint after pouring, the V-shaped mesh of the non-dismantling formwork should be placed horizontally during formwork support, and the two non-dismantling formworks should be overlapped up and down with mesh tile sleeves, and the overlapping length of the left and right should not be less than 150mm. For a single-sided non-dismantling formwork, first install the lower plate, then the middle rubber waterstop, and finally the top plate. For the non-dismantling formwork, use binding wires to pass through the mesh surface and fix it to the steel bar to avoid displacement of the quick-close mesh during concrete pouring.

[0128] The vertical back ribs of the non-dismantling formwork are made of 50mm×100mm wooden squares placed upright with a spacing of 30cm; scaffolding pipes and 3-shaped clips are used as horizontal back ribs for reinforcement; short steel bars are nailed into the ground at the bottom of the outer side of the non-dismantling formwork as limiting supports, and scaffolding pipes are used as diagonal braces 6. The roots of the diagonal braces 6 are fixed to the ground with dowels, and the diagonal braces 6 are adjusted to control the verticality of the non-dismantling formwork.

[0129] Due to the characteristics of the quick-close mesh, after the concrete is formed, the contact surface naturally forms a mechanical, uneven, corrugated surface protruding from the concrete surface. The contact surface between the new and old concrete does not need to be roughened, which effectively controls the leakage quality defects caused by the poor combination of the new and old concrete. Secondly, there is no need to remove the formwork after the concrete is poured, only the reinforcement components of the formwork that does not require removal are required.

[0130] In S30, after the concrete strength at the bottom of the shaft reaches the design requirements, construction can be carried out. The surveyor measures and lays out the edge line of the pool wall template and marks it. After the components are transported to the bottom of the shaft, they are classified and stacked on the ground, and they must not be randomly piled up. The template is assembled according to the structural drawings, and its flatness is ensured. The template is then erected by a crane, and the diagonal brace 6 and the diagonal brace 6 support 201 are assembled, and the pins are inserted to fix them. The upper construction platform 3 is hung, the scaffolding boards are fully laid (that is, the scaffolding boards are used as platform boards 32), the upper scaffold is installed, and finally the guardrail 33 and protective nets and other safety protection measures are installed.

[0131] Use a crane to lift the template to the designated position for erection, manually adjust the diagonal brace 6 and the adjustment seat 205 and then fix it. After a single template is in place, install the next template in the same way. The two templates are connected by a core belt and fixed with a core belt pin to ensure the integrity of the template and make the template force more reasonable and reliable. After all templates of the same warehouse number are in place, check whether the template connections are firm and reliable, adjust the diagonal brace 6 to correct the verticality of the template, and adjust the horizontal deviation of the template by the fine adjustment part 7.

[0132] After the template is corrected for deviation, the embedded bolts are installed, and the climbing cone and screw rod are installed in the reserved climbing cone hole on the inner side of the template. The climbing cone is fixed to the template on the outer side of the template by passing the positioning bolts through the template. The end of the screw rod can be welded and fixed to the steel frame with a steel bar bracket. Based on this, the embedded structure includes the climbing cone, screw rod and climbing cone hole. The template is connected to the climbing cone hole by the positioning bolts to realize the connection between the template and the embedded structure.

[0133] A quick and easy closing net is used to seal the space between two adjacent formworks without having to dismantle the formwork. Binding wire is used to pass through the closing net to fix it to the steel frame. Wooden planks and steel pipes are used to reinforce the outside of the quick and easy closing net.

[0134] After the formwork is completed, the surveying personnel will re-measure the formwork and make a record, and report it to the surveying supervisor for formwork acceptance. Concrete can only be poured after the supervisor has accepted it.

[0135] After the concrete solidifies to the designed strength, the formwork can be removed. At the embedded structure, the positioning bolts are removed and the stress bolts are installed. After the support frame 4 is assembled, the support frame 4 is installed at the original template position through the stress bolts, and the stress bolts are fixed by inserting the limit pins. The template is hoisted up and installed above the support frame 4.

[0136] At this time, the construction site is the bottom of the shaft, so the staff can perform repair work on the bottom of the shaft, and the hanger does not need to install the lower construction platform 5. However, when the template climbs further, the lower construction platform 5 should be installed in time to facilitate the staff to start the operation.

[0137] In S40, a strength test is performed based on a concrete rebound tester, or based on the strength of test blocks cured under the same conditions during the same period, to determine whether the concrete has reached the design strength.

[0138] When the concrete reaches the demoulding strength and the next layer of warehouse preparation is completed, the formwork can be removed. When the formwork is removed, the positioning bolts on the climbing cone of this layer are removed and replaced with stress bolts to facilitate the connection of the hanger.

[0139] Loosen the diagonal brace 6 and adjust the fine-tuning piece 7 to tilt the template, manually separate the nail-embedded membrane 8 from the template body 22, and after the plate membrane is separated, move the template backward.

[0140] Remove the limit pin of the force-bearing bolt of the upper layer of climbing cones.

[0141] Utilize the lifting hook 204 above the template body 22, lift the template to the climbing cones of this layer with a hoisting device, and insert the limit pin to complete the template climbing operation.

[0142] Lay the stud film 8, correct the deviation of the template and position the climbing cones.

[0143] Connect the lower construction platform 5 below the support frame 4 to repair the concrete of the upper layer. And use mortar not lower than the concrete strength grade to fill and repair the climbing cone holes.

[0144] In S50, repeat the climbing until the construction of the shaft is completed.

[0145] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A circulating climbing formwork device for excavating and lining a super-large shaft, characterized in that: Includes formwork and hangers; The template comprises a base plate (1), a template member (2) and an upper construction platform (3) which are connected in sequence, and the lower end of the template member (2) is connected to the base plate (1) via a fine-tuning member (7), and the upper end of the template member (2) is detachably connected to the upper construction platform (3); The hanger comprises a support frame (4) connected to a base plate (1) and a selectively arranged lower construction platform (5); when the lower construction platform (5) is provided, the upper end of the support frame (4) is connected to the base plate (1), and the lower end of the support frame (4) is connected to the lower construction platform (5).

2. The circulating climbing formwork device for excavation and lining of a super-large shaft according to claim 1 is characterized in that: The bottom plate (1) comprises a base plate (11), a side plate (12) and a platform beam (13); The base plate (11) has two opposite ends, one end of which is configured as a working end for connecting to the inner wall of the shaft, and the other end is configured as a free end. The base plate (11) has two side edges located between the working end and the free end, the two side edges are opposite to each other and are respectively connected to a side plate (12), and accordingly, two side plates (12) are provided. The side plate (12) is provided with an adjustment hole or an adjustment groove for connecting the fine adjustment member (7); a plurality of platform beams (13) are provided and evenly distributed on the bottom surface of the base plate (11); Correspondingly, the connection between the template member (2) and the bottom plate (1) is adjacent to the working end of the base plate (11), and the free end of the base plate (11) is provided with a diagonal brace (6) connected to the template member (2).

3. The circulating climbing formwork device for excavation and lining of a super-large shaft according to claim 2 is characterized in that: The template member (2) comprises a main back rib (21) and a template body (22); The main back rib (21) has two opposite outer surfaces, one of which is connected to the formwork body (22) through a support (201), and the other is provided with an additional rod (202) and connected to the diagonal brace (6); accordingly, the lower end of the main back rib (21) is connected to the bottom plate (1) through a fine-tuning member (7), and the upper end of the main back rib (21) is connected to the upper construction platform (3) through a fan-shaped plate (203); The upper end of the template body (22) is provided with a hook (204), and the lower end of the template body (22) is connected to the additional rod (202) through an adjustment seat (205). Accordingly, the adjustment seat (205) is used to adjust the height of the template body (22).

4. The circulating climbing formwork device for excavation and lining of a super-large shaft according to claim 3 is characterized in that: A nail-embedded membrane (8) is provided on the outer surface of the template body (22) facing the inner wall of the shaft, and a plurality of connecting pieces (9) for connecting the nail-embedded membrane (8) are provided on the template body (22); The connecting member (9) comprises a nail-embedded membrane hole (901), an outer frame plate (902), an intermediate inlay (903) and a connecting bolt (904); the nail-embedded membrane hole (901) is located on the template body (22); the outer frame plate (902) is fixed on the outer surface of the template body (22) facing away from the inner wall of the shaft, and the outer frame plate (902) covers the nail-embedded membrane hole (901); the intermediate inlay (903) is placed in the outer frame plate (902); one end of the connecting bolt (904) is connected to the nail-embedded membrane (8), and the other end passes through the intermediate inlay (903) and the outer frame plate (902) in sequence and is connected to a locking nut.

5. The circulating climbing formwork device for excavating and lining a super-large shaft according to claim 4 is characterized in that: The upper construction platform (3) comprises a platform crossbeam (31), a platform plate (32) and a guardrail (33); one end of the platform crossbeam (31) is detachably connected to the fan-shaped plate (203), and the other end of the platform crossbeam (31) extends outward; the platform plate (32) is connected to the platform crossbeam (31) and is located above the platform crossbeam (31), and the guardrail (33) is connected to the platform plate (32) and is located above the extended end of the platform crossbeam (31).

6. The circulating climbing formwork device for excavation and lining of a super-large shaft according to claim 5 is characterized in that: The fine-tuning member (7) comprises a fine-tuning seat (701) and a fixing bolt (702). The fine-tuning seat (701) is slidably arranged on the base plate (11) and connected to the lower end of the main back rib (21). The two ends of the fine-tuning seat (701) respectively abut against the side plate (12). The fixing bolt (702) is passed through the two ends of the fine-tuning seat (701) and is detachably connected to the side plate (12). Accordingly, the side plate (12) is provided with a plurality of adjustment holes adapted to the fixing bolt (702).

7. The circulating climbing formwork device for excavating and lining a super-large shaft according to claim 5 is characterized in that: The fine-tuning member (7) comprises a housing (703), a driving member (704) and a first telescopic rod (705); The housing (703) is connected to the base plate (11) via a middle bar and is located below the base plate (11); the driving member (704) is arranged in the housing (703) and is used to drive the first telescopic rod (705) to extend and retract; The first telescopic rod (705) comprises an outer cylinder (706), a rotating rod (707) and an inner cylinder (708), wherein the outer cylinder (706) is arranged in the housing (703); the rotating rod (707) is rotatably arranged in the outer cylinder (706), one end of the rotating rod (707) is connected to the driving member (704), and the other end of the rotating rod (707) is provided with a driving block (709), and the outer periphery of the driving block (709) is provided with two symmetrically arranged spiral plates (710); the inner cylinder (708) is slidably arranged on the outer cylinder (706), and the inner cylinder (708) is slidably arranged on the outer cylinder (706). The lower end of the cylinder (708) is abutted against the outer cylinder (706) through a spring (711), and the upper end of the inner cylinder (708) is used to connect the main back rib (21). Two driving rods (712) are provided on the inner periphery of the inner cylinder (708). Accordingly, when the driving rods (712) abut against the bottom surface of the spiral plate (710), the inner cylinder (708) moves downward with the rotation of the driving block (709) and is retracted into the outer cylinder (706). When the driving rods (712) are separated from the spiral plate (710), the inner cylinder (708) is bounced up by the spring (711) and extends outward. Accordingly, a plurality of first telescopic rods (705) are provided; Correspondingly, a base for connecting the first telescopic rod (705) is provided at the lower end of the main back rib (21), a first slot adapted to the inner tube (708) is provided on the base, a second slot connected to the first slot is provided on the base plate (11), and an adjustment slot is provided on the side plate (12).

8. The circulating climbing formwork device for excavating and lining a super-large shaft according to claim 7 is characterized in that: The driving member (704) includes a plurality of driving motors; Alternatively, the driving member (704) includes a driving motor and a plurality of transmission gears, each transmission gear includes a first transmission gear (713), two second transmission gears (714) and four third transmission gears (715) meshed in sequence, the first transmission gear (713) is connected to the driving motor, the second transmission gear (714) includes a first gear ring for connecting to the first transmission gear (713) and a second gear ring for connecting to the third transmission gear (715), and the third transmission gears (715) are respectively connected to the first telescopic rods (705).

9. The circulating climbing formwork device for excavating and lining a super-large shaft according to any one of claims 1 to 8, characterized in that: The supporting frame (4) is a tripod, and the structure of the lower construction platform (5) is the same as that of the upper construction platform (3).

10. A climbing method based on the circulating climbing formwork device for excavating and lining a super-large shaft according to any one of claims 1 to 9, characterized in that: The following steps are involved: S10 Construction preparation; S20 shaft bottom construction; S30 Shaft wall construction: assemble the formwork; hoist it to the designated position and erect the formwork; adjust the diagonal brace (6) and the adjustment seat (205) and fix them; repeat the above steps until several formworks are installed; pour concrete; assemble the hanger; hoist the formwork and install the hanger at the original position of the formwork; install the formwork above the hanger; pour concrete again; S40 formwork climbing: when the concrete reaches the demoulding strength, the formwork is removed; the formwork is lifted upwards; the formwork is fixed again; the upper layer is poured with concrete; the lower layer is repaired; S50 repeats S40 until the shaft construction is completed.

Images