A rapid construction device and method for the shaft wall of a reverse-construction pipe jacking vertical shaft

Abstract

This invention provides a rapid construction device and method for the shaft wall of a reverse-construction pipe jacking shaft. It includes a ring-shaped rotating component, a driving component on one side of the rotating component to drive its rotation, multiple lifting components above the rotating component, and a casting template below the lifting components. This invention, by setting up the rotating component, driving component, lifting components, and casting template, forms a rapid construction device for the shaft wall of a reverse-construction pipe jacking shaft. This changes the conventional method of multiple material hoisting operations using cranes during reverse-construction shaft wall construction, reducing the number of hoisting operations, significantly shortening construction time, and greatly improving construction efficiency. It solves the problems of long construction time and difficult quality control associated with multiple material hoisting operations using cranes in conventional reverse-construction shaft wall construction.

Description

Technical Field

[0001] This invention relates to the field of shaft wall construction, and in particular to a rapid construction device and method for shaft walls in reverse-construction pipe jacking method. Background Technology

[0002] A pipe jacking shaft is an underground working space used in pipe jacking construction for the installation and commissioning of pipe jacking equipment, the assembly of pipe sections, the jacking construction, and the dismantling and hoisting of equipment. It includes both the launching shaft and the receiving shaft. The reverse construction method is a common method for pipe jacking shaft construction. It refers to a construction method where, during underground structure construction, no temporary supports are erected, and the structure is excavated and constructed sequentially from top to bottom. Conventional reverse construction shaft wall construction requires the installation and dismantling of formwork and support systems, and materials need to be hoisted multiple times using cranes. This method is cumbersome and complex, especially for large-diameter deep shaft construction, resulting in long construction times and significant challenges in quality control.

[0003] Therefore, after the construction template is assembled once, construction can proceed directly downwards. Automated equipment is used for demolding and lowering, which improves the overall hoisting efficiency and construction quality compared to traditional construction methods. Summary of the Invention

[0004] The main objective of this invention is to provide a rapid construction device and method for the shaft wall of a reverse-construction pipe jacking method, which solves the problems of the need for multiple hoisting of materials by crane during conventional reverse-construction shaft wall construction, which is time-consuming and difficult to control in terms of quality.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a rapid construction device for the wall of a vertical shaft using the reverse construction method for pipe jacking, comprising an annular rotating component, a driving component on one side of the rotating component for driving the rotating component to rotate, a plurality of lifting components above the rotating component, and a casting template below the lifting components.

[0006] In a preferred embodiment, the rotating assembly includes an annular rotating base, a rotatable annular rotating top plate on the top of the rotating base, and a hook-and-connector between the rotating top plate and the rotating base, wherein the rotating top plate and the hook-and-connector are connected by bolts.

[0007] In the preferred embodiment, a guide rail is provided on one side of the rotating base, a roller is provided between the lower outer side of the guide rail and the hook seat, and a smooth wear-resistant layer is provided between the top of the guide rail and the lower part of the rotating top plate.

[0008] In a preferred embodiment, the outer side of the rotating top plate is also provided with a rack portion, which is used to connect with the drive assembly.

[0009] In the preferred embodiment, the drive assembly includes a drive base, which is arranged in a figure-eight pattern. A reducer is located on top of the drive base, a drive motor is located on top of the reducer, and a drive gear is located below the side of the reducer near the rotating assembly.

[0010] The drive assembly is located near the rack section, and the drive gear is used to mesh with the rack section for transmission.

[0011] In a preferred embodiment, the lifting assembly includes a lifting base, with clamping cylinders on both sides of the lifting base. The top of each clamping cylinder is equipped with a clamping claw, and a liftable lifting rod is provided between the clamping claws. The clamping claws are used to clamp the lifting rod.

[0012] In the preferred embodiment, the top of the lifting base is provided with a housing, and a set of lifting motors is provided on one side of the housing. The output shaft end of the lifting motor is provided with a clamping wheel, which is used to control the lifting rod's raising and lowering.

[0013] The lifting rod is a multi-segment splicing type, with each segment connected by threads. Each segment has evenly distributed protrusions on its outer surface, and the clamping wheel has grooves on its outer surface that correspond to the protrusions. The bottom of the first lifting rod segment is equipped with a connecting sleeve, which is used to connect the casting template.

[0014] In the preferred embodiment, the casting template includes multiple curved plates, with side plates on both sides of the curved plates. The side plates have elongated holes, and the curved plates are joined together to form a ring shape.

[0015] The inner side of the curved plate is also provided with a multi-layered annular inner support frame. The inner support frame is segmented and spliced, and each segment is connected by bolts through long holes. The upward side of the inner support frame is also provided with a connecting seat, which is used to connect with the connecting sleeve.

[0016] In the preferred embodiment, a second sleeve is provided on the inner side of the arc plate, and the arc plate is connected to the inner support frame through a support frame pressure plate. The two sides of the support frame pressure plate are connected to the second sleeve by bolts.

[0017] The top of the arc-shaped plate is also provided with a first sleeve, and an adjusting bolt is provided through the first sleeve. The adjusting bolt is used to fine adjust the distance between the arc-shaped plate and the well wall.

[0018] The construction method using the above-mentioned reverse construction method for the shaft wall of a vertical shaft includes:

[0019] S1. First, build a steel cage in the pouring trench, then place the pouring template into the pouring trench and apply a release agent to its outer surface, and then pour concrete to complete the first layer of the vertical shaft.

[0020] S2. Then install the rotating assembly along the edge of the first vertical shaft opening;

[0021] S3. Then connect the lifting component above the rotating component to the casting template below;

[0022] S4. Next, place the drive component on one side of the rotating component;

[0023] S5. Continue excavating and building the steel cage. After the steel cage is completed, start the drive component to rotate the pouring formwork for demolding.

[0024] S6. After demolding is completed, start the lifting component to lower the pouring template to the next pouring section;

[0025] S7. Repeat steps S5-S6 to complete all pouring sections. After the final pouring is completed, disassemble the pouring templates in sections and then lift them out of the shaft using the lifting assembly to complete the construction of the entire shaft wall.

[0026] This invention provides a rapid construction device and method for the shaft wall of a reverse-construction pipe jacking vertical shaft, which has the following beneficial effects:

[0027] 1. This invention forms a rapid construction device for the shaft wall of a reverse-construction pipe jacking method by setting up a rotating component, a driving component, a lifting component, and a casting template. This changes the conventional method of material hoisting multiple times by crane during the construction of the shaft wall of a reverse-construction method, reduces the number of hoisting operations, significantly shortens the construction time, and significantly improves the construction efficiency.

[0028] 2. In the construction device and method of the present invention, the arc-shaped plate is assembled into a ring shape by connecting the side plates and the inner side is provided with a multi-layer ring-shaped inner support frame. The inner support frame is spliced ​​in sections and connected by bolts through long holes. At the same time, the top of the arc-shaped plate is provided with adjusting bolts that can finely adjust the distance between the arc-shaped plate and the well wall, which makes it possible to better control the forming quality of the well wall during construction. Compared with conventional construction methods, the difficulty of quality control is greatly reduced, and the construction quality of the vertical shaft well wall is effectively guaranteed. Attached Figure Description

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0030] Figure 1 This is an isometric view of the construction device of the present invention;

[0031] Figure 2 This is a cross-sectional schematic diagram of the construction device of the present invention;

[0032] Figure 3 This is a cross-sectional schematic diagram of the rotating component of the present invention;

[0033] Figure 4 This is a cross-sectional schematic diagram of the construction device of the present invention from another direction;

[0034] Figure 5 This is an isometric view of the construction device of the present invention from another direction;

[0035] Figure 6This is an isometric view of the lifting component of the present invention;

[0036] Figure 7 This is a cross-sectional schematic diagram of the lifting component of the present invention;

[0037] Figure 8 This is a side view of the clamping wheel of the present invention;

[0038] Figure 9 This is an isometric view of the casting mold of the present invention;

[0039] Figure 10 This is the present invention. Figure 9 Enlarged view of area A in the middle;

[0040] Figure 11 This is the present invention. Figure 9 Enlarged view of area B in the middle;

[0041] Figure 12 This is an axonometric view of the arc-shaped plate of the present invention;

[0042] Figure 13 This is an axonometric view of the internal support frame of the present invention;

[0043] Figure 14 This is a schematic diagram of the layout of the construction device of the present invention;

[0044] Figure 15 This is a schematic diagram of the lowering of the casting mold of the present invention.

[0045] In the figure: Rotating component 1; Rotating base 101; Rotating top plate 102; Rack part 103; Lifting hook 104; Connecting bolt 105; Guide rail 106; Wear-resistant layer 107; Hook seat 108; Roller 109; Drive component 2; Drive base 201; Reducer 202; Drive motor 203; Drive gear 204; Lifting component 3; Lifting base 301; Clamping cylinder 302; Clamping jaw 303; Outer shell 304; Lifting rod 305; Protrusion 306; Clamping wheel 307; Connecting sleeve 308; Lifting motor 309; Groove 310; Casting mold 4; Arc plate 401; Inner support frame 402; Connecting seat 403; Support frame pressure plate 404; Adjusting bolt 405; First sleeve 406; Outer mold rib plate 407; Second sleeve 408; Side plate 409; Long hole 410; Rebar cage 5. Detailed Implementation

[0046] Example 1

[0047] like Figure 1-15 As shown, a rapid construction device for the wall of a vertical shaft using the reverse construction method for pipe jacking includes an annular rotating component 1, a driving component 2 on one side of the rotating component 1, the driving component 2 being used to drive the rotating component 1 to rotate, a plurality of lifting components 3 being provided above the rotating component 1, and a casting template 4 being provided below the lifting components 3.

[0048] In a preferred embodiment, the rotating assembly 1 includes an annular rotating base 101, the top of the rotating base 101 is provided with a rotatable annular rotating top plate 102, and a hook seat 108 is provided between the rotating top plate 102 and the rotating base 101. The rotating top plate 102 and the hook seat 108 are connected by bolts.

[0049] In a preferred embodiment, a guide rail 106 is provided on one side of the rotating base 101, a roller 109 is provided between the lower outer side of the guide rail 106 and the hook seat 108, and a smooth wear-resistant layer 107 is provided between the top of the guide rail 106 and the lower part of the rotating top plate 102.

[0050] In a preferred embodiment, the outer side of the rotating top plate 102 is also provided with a rack portion 103, which is used to connect with the drive assembly 2.

[0051] In the preferred embodiment, the drive assembly 2 includes a drive base 201, which is arranged in a figure-eight pattern. A reducer 202 is provided above the drive base 201, a drive motor 203 is provided on the top of the reducer 202, and a drive gear 204 is provided below the side of the reducer 202 near the rotating assembly 1.

[0052] The drive assembly 2 is located near the rack section 103, and the drive gear 204 is used to mesh with the rack section 103 for transmission.

[0053] In the preferred embodiment, the lifting assembly 3 includes a lifting base 301, with clamping cylinders 302 on both sides of the lifting base 301, clamping claws 303 at the top of the clamping cylinders 302, and a liftable lifting rod 305 between the clamping claws 303. The clamping claws 303 are used to clamp the lifting rod 305.

[0054] In the preferred embodiment, the top of the lifting base 301 is provided with a housing 304, and a set of lifting motors 309 is provided on one side of the housing 304. The output shaft end of the lifting motor 309 is provided with a clamping wheel 307, which is used to control the lifting rod 305.

[0055] The lifting rod 305 is a multi-segment splicing type, with each segment connected by threads. Each segment has evenly distributed protrusions 306 on its outer circular surface. The clamping wheel 307 has a groove 310 on its outer circular surface that is adapted to the protrusions 306. The bottom end of the first segment of the lifting rod 305 is provided with a connecting sleeve 308, which is used to connect the casting template 4.

[0056] In the preferred embodiment, the casting template 4 includes multiple arc-shaped plates 401, with side plates 409 on both sides of the arc-shaped plates 401. The side plates 409 have elongated holes 410, and the arc-shaped plates 401 are joined together to form a ring shape through the side plates 409.

[0057] The inner side of the arc plate 401 is also provided with a multi-layered annular inner support frame 402. The inner support frame 402 is a segmented splicing type, and each segment is connected by bolts through long holes 410. The upward side of the inner support frame 402 is also provided with a connecting seat 403, which is used to connect with the connecting sleeve 308.

[0058] In the preferred embodiment, the inner side of the arc plate 401 is also provided with a second sleeve 408, and the arc plate 401 and the inner support frame 402 are connected by a support plate pressure plate 404. The two sides of the support plate pressure plate 404 are connected to the second sleeve 408 by bolts.

[0059] The top of the arc plate 401 is also provided with a first sleeve 406, and an adjusting bolt 405 is provided through the first sleeve 406. The adjusting bolt 405 is used to fine adjust the distance between the arc plate 401 and the well wall.

[0060] Example 2

[0061] Further explanation in conjunction with Example 1, such as Figure 1-15 The structure shown above utilizes a construction method for a rapid construction device for the reverse-construction method of pipe jacking shaft walls. This method includes:

[0062] S1. First, build a steel cage 5 in the pouring trench, then place the pouring formwork 4 into the pouring trench and apply a release agent to its outer surface, then pour concrete to complete the first layer of the vertical shaft.

[0063] S2. Then install the rotating component 1 along the edge of the first vertical shaft opening;

[0064] S2.1 First, the rotating base 101 is placed at the wellhead, and then the rotating top plate 102 is placed above the guide rail 106 so that the smooth wear-resistant layer 107 is in contact.

[0065] S2.2 Then install the hook seat 108 on the outside of the rotating top plate 102, so that the roller on the hook seat 108 is in contact with the bottom of the guide rail 106;

[0066] S3. The lifting component 3 above the rotating component 1 is connected to the casting template 4 below;

[0067] S3.1 Move the lifting rod 305 from below the lifting motor 309 to above the inner support frame 402, and connect the connecting sleeve 308 to the connecting seat 403;

[0068] S3.2 If the length of the lifting rod 305 is insufficient during the downward process, an additional lifting rod 305 needs to be added above;

[0069] S4. Next, place the drive assembly 2 on one side of the rotating assembly 1;

[0070] In S4.1 drive assembly 2, the drive gear 204 meshes with the rack part 103, and the drive base 201 is fixed on the ground.

[0071] S5. Continue to excavate and build the steel cage 5. After the steel cage 5 is completed, start the drive component 2 to rotate the pouring formwork 4 for demolding.

[0072] Before the S5.1 drive assembly 2 is started, the clamping cylinder 302 needs to be driven first to make the clamping jaw 303 clamp the lifting rod 305. Then the drive motor 203 is started to rotate the casting template 4. When the next layer needs to be rotated, the drive motor 203 rotates the casting template 4 in the opposite direction to avoid the rack part 103 from completing its stroke. Each rotation only requires micro-movement demolding.

[0073] S6. After demolding is completed, start lifting component 3 to lower the casting template 4 to the next casting section;

[0074] S7. Repeat steps S5-S6 to complete all pouring sections. After the final pouring is completed, disassemble the pouring template 4 into sections and then lift it out of the shaft by the lifting component 3 to complete the construction of the entire shaft wall.

[0075] The detailed steps of a construction method for a rapid construction device for the vertical shaft wall of a reverse-construction pipe jacking method are as follows:

[0076] In the casting trench, longitudinal reinforcement is first arranged according to the design drawings. The quantity, diameter, and spacing of the longitudinal reinforcement must be strictly determined according to the design specifications. Transverse reinforcement is then arranged on the longitudinal reinforcement at certain intervals, and the longitudinal and transverse reinforcements are connected into a whole reinforcement cage5 by binding or welding. During the construction process, tools such as reinforcement positioning supports are required to ensure accurate positioning and uniform spacing of the reinforcement.

[0077] The pre-assembled casting formwork 4 is carefully lowered into the casting trench using a lifting device, ensuring the center of the formwork is aligned with the center of the trench. Care must be taken to avoid collisions between the formwork and the reinforcing cage during placement, which could damage either. After the formwork is in place, a layer of release agent is evenly applied to the outer surface of the casting formwork 4. The choice of release agent should be based on the material of the formwork and the construction environment to ensure good release performance without affecting the surface quality of the concrete.

[0078] The mixed concrete is transported to the pouring trench using equipment such as a concrete pump. During pouring, it should be done in layers. After each layer is poured, it should be compacted with a vibrator to ensure it is dense and free of air bubbles, thus guaranteeing a tight bond between layers. After pouring, the concrete surface is finished to make it smooth.

[0079] First, accurately position the rotating base 101 at the predetermined location at the opening of the first-level vertical shaft. Before installation, the surface of the shaft opening must be cleaned to ensure it is flat and clean. Use measuring instruments to precisely adjust the position and level of the rotating base, ensuring its center coincides with the center of the vertical shaft and the levelness error is controlled within the allowable range. Place the rotating top plate 102 above the guide rail 106, ensuring that the smooth wear-resistant layer 107 beneath the rotating top plate 102 is in close contact with the top of the guide rail 106. During placement, care must be taken to avoid collisions between the rotating top plate and the guide rail, which could damage the wear-resistant layer or the guide rail.

[0080] Next, install the hook seat 108 on the outside of the rotating top plate 102. During installation, ensure that the hook seat 108 is accurately positioned and securely connected to the rotating top plate 102. Align the roller 109 on the hook seat 108 with the bottom of the guide rail 106, and adjust the position of the roller to allow it to roll freely on the guide rail. After installation, perform preliminary adjustments to the rotating assembly, checking whether the rotating top plate rotates smoothly and without any jamming.

[0081] The lifting rod 305 is lowered above the inner support frame 402 via the lifting motor 309. During the lowering process, the descent speed and position of the lifting rod must be closely monitored to ensure that it accurately reaches the predetermined position. Once the lifting rod 305 reaches the inner support frame 402, the connecting sleeve 308 and the connecting seat 403 are accurately aligned, and they are securely connected together using bolts or other fasteners. During connection, it must be ensured that the fit between the connecting sleeve and the connecting seat is tight and without gaps.

[0082] If the length of the lifting rod 305 is insufficient during its lowering process, additional lifting rods 305 need to be added from above. When adding a lifting rod, first align the new lifting rod with the existing one, ensuring the threaded portions of the two sections are accurately joined. Use a wrench or similar tool to tighten the threads, ensuring a secure connection. After adding the lifting rod, check its overall verticality and connection strength to ensure it functions properly.

[0083] The drive gear 204 in drive assembly 2 meshes with the rack portion 103 on the outer side of the rotating top plate 102. During meshing, the position of the drive assembly needs to be precisely adjusted to ensure that the meshing clearance between the drive gear and the rack portion meets the requirements. Generally, the meshing clearance should be controlled between 0.2-0.5mm to ensure the accuracy and stability of the transmission. The drive base 201 is fixed to the ground using anchor bolts or other fixing methods to ensure that the drive assembly does not shift during operation.

[0084] After continuing to excavate the shaft and erecting the reinforcing cage 5, preparations are made for demolding. Before starting the drive assembly 2, the clamping cylinder 302 is driven first, causing the clamping jaws 303 to clamp the lifting rod 305. The working pressure of the clamping cylinder needs to be adjusted reasonably according to the diameter of the lifting rod and the clamping force requirements to ensure that the clamping jaws can firmly clamp the lifting rod. The drive motor 203 is started, and the speed is reduced and the torque is increased through the reducer 202, driving the drive gear 204 to rotate. The drive gear 204 meshes with the rack and pinion section 103, causing the rotating top plate 102 to drive the casting template 4 to rotate, thus achieving demolding.

[0085] When the next layer needs to be rotated, the drive motor 203 rotates in the opposite direction to pour the formwork 4, so as to avoid the rack part 103 from completing its stroke. Each rotation only requires a slight movement to demold. Generally, the rotation angle is controlled between 5° and 10° to prevent excessive adhesion between the formwork and the concrete, which may lead to demolding difficulties or damage to the formwork.

[0086] After demolding, the lifting motor 309 of the lifting assembly 3 is started. The lifting motor 309, through the cooperation of the clamping wheel 307 and the lifting rod 305, controls the descent of the lifting rod 305, lowering the casting template 4 to the predetermined position of the next casting section. During the lowering process, close attention must be paid to the descent speed and position of the lifting rod to ensure that the casting template accurately reaches the predetermined position. Simultaneously, by adjusting the adjusting bolt 405 in the first sleeve 406, the distance between the arc plate 401 and the well wall is finely adjusted to ensure that the template position meets the design requirements.

[0087] Repeat steps S5-S6, following the above construction method, continuously repeating the operations of excavation, reinforcement cage erection, formwork removal, and lowering of the pouring formwork to complete the construction of all pouring sections. During each construction process, strict quality checks are required to ensure that the quality of the reinforcement cage erection, concrete pouring, and formwork installation meet the requirements. After the final pouring is completed, disassemble the pouring formwork into four sections. During disassembly, first loosen the bolts connecting the curved plate to separate the curved plate 401 from other components, then sequentially remove the inner support frame 402, support plate pressure plate 404, and other components. During disassembly, care must be taken to protect the formwork and other components to avoid damage.

[0088] After disassembly, the template is hoisted out of the well using lifting assembly 3. The hoisting motor 309 is started, causing the lifting rod 305 to rise, which in turn lifts the connecting sleeve 308 and the connected template components. During the hoisting process, it is crucial to ensure a uniform lifting speed and avoid excessive swaying of the template components. Once the template components are raised to the wellhead position, they are transported to a designated storage location using lifting equipment.

[0089] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A rapid construction device for the shaft wall of a reverse-construction pipe jacking vertical shaft, characterized in that: The rotating component (1) includes a ring-shaped rotating component (1), a driving component (2) is provided on one side of the rotating component (1), the driving component (2) is used to drive the rotating component (1) to rotate, a plurality of lifting components (3) are provided above the rotating component (1), and a casting template (4) is provided below the lifting components (3). The rotating component (1) is installed at the edge of the shaft opening, and the driving component (2) is started to rotate the casting template (4) for demolding. The rotating assembly (1) includes an annular rotating base (101), and a rotatable annular rotating top plate (102) is provided on the top of the rotating base (101). A hook seat (108) is also provided between the rotating top plate (102) and the rotating base (101). The rotating top plate (102) and the hook seat (108) are connected by bolts. The outer side of the rotating top plate (102) is also provided with a rack (103), which is used to connect with the drive assembly (2); The lifting assembly (3) includes a lifting base (301), with clamping cylinders (302) on both sides of the lifting base (301), clamping claws (303) at the top of the clamping cylinders (302), and lifting rods (305) that can be raised and lowered between the clamping claws (303). The clamping claws (303) are used to clamp the lifting rods (305). The top of the lifting base (301) is provided with a housing (304), and a set of lifting motors (309) is provided on one side of the housing (304). The output shaft end of the lifting motor (309) is provided with a clamping wheel (307), which is used to control the lifting rod (305) to rise and fall. The lifting rod (305) is a multi-segment splicing type, with each segment connected by threads. Each segment has evenly distributed protrusions (306) on its outer circular surface. The clamping wheel (307) has a groove (310) on its outer circular surface that is compatible with the protrusions (306). The bottom end of the first lifting rod (305) is provided with a connecting sleeve (308), which is used to connect the casting template (4).

2. The rapid construction device for the shaft wall of a reverse-construction pipe jacking method according to claim 1, characterized in that: A guide rail (106) is provided on one side of the rotating base (101). A roller (109) is provided between the lower outer side of the guide rail (106) and the hook seat (108). A smooth wear-resistant layer (107) is provided between the top of the guide rail (106) and the lower part of the rotating top plate (102).

3. The rapid construction device for the shaft wall of a reverse-construction pipe jacking vertical shaft according to claim 1, characterized in that: The drive assembly (2) includes a drive base (201), which is arranged in a figure-eight pattern. A speed reducer (202) is provided above the drive base (201), and a drive motor (203) is provided on the top of the speed reducer (202). A drive gear (204) is provided below the side of the speed reducer (202) near the rotating assembly (1). The drive assembly (2) is located near the rack (103), and the drive gear (204) is used to mesh with the rack (103) for transmission.

4. The rapid construction device for the shaft wall of a reverse-construction pipe jacking vertical shaft according to claim 1, characterized in that: The casting template (4) includes multiple arc-shaped plates (401), with side plates (409) on both sides of the arc-shaped plates (401). The side plates (409) have elongated holes (410). The arc-shaped plates (401) are joined together to form a ring shape through the side plates (409). The inner side of the arc plate (401) is also provided with a multi-layer ring-shaped inner support frame (402). The inner support frame (402) is segmented and spliced. Each segment is connected by bolts through long holes (410). The upward side of the inner support frame (402) is also provided with a connecting seat (403). The connecting seat (403) is used to connect with the connecting sleeve (308).

5. The rapid construction device for the shaft wall of a reverse-construction pipe jacking method according to claim 4, characterized in that: The inner side of the arc plate (401) is also provided with a second sleeve (408). The arc plate (401) and the inner support frame (402) are connected by a support plate pressure plate (404). The two sides of the support plate pressure plate (404) are connected to the second sleeve (408) by bolts. The top of the arc plate (401) is also provided with a first sleeve (406), and the first sleeve (406) is provided with a through adjusting bolt (405). The adjusting bolt (405) is used to fine adjust the distance between the arc plate (401) and the well wall.

6. The construction method of the rapid construction device for the reverse construction method of pipe jacking shaft wall according to any one of claims 1-5, characterized in that: The method includes: S1. First, build a steel cage (5) in the pouring trough, then put the pouring template (4) into the pouring trough and apply a release agent to its outer surface, then pour concrete to complete the first vertical shaft. S2. Then install the rotating component (1) at the edge of the first vertical shaft opening. S3. Then connect the lifting component (3) above the rotating component (1) to the casting template (4) below; S4. Next, place the drive assembly (2) on one side of the rotating assembly (1); S5. Continue to excavate and build the steel cage (5). After the steel cage (5) is completed, start the drive component (2) to rotate the casting template (4) for demolding. S6. After demolding is completed, start the lifting component (3) to lower the casting template (4) to the next casting section; S7. Repeat steps S5-S6 to complete all pouring sections. After the final pouring is completed, disassemble the pouring template (4) into sections and then lift it out of the well by the lifting component (3) to complete the construction of the entire shaft wall.

Images