Special-shaped mid-partition trolley for multi-arch tunnel

Abstract

The invention discloses a multi-arch tunnel special-shaped mid-partition trolley which comprises a trolley body frame, an arch-shaped connecting support is arranged at the front end of the top of the trolley body frame, the arch-shaped connecting support is of an arc-shaped structure, the radian of the arch-shaped connecting support is matched with the shape of the top of a mid-partition steel reinforcement framework, and the arch-shaped connecting support is fixed to the front end of a top cross beam of the trolley body frame in a welded mode. The support is used for supporting the whole trolley to be stable and guiding the trolley to pass through a bound reinforcement cage; the formwork system of the trolley body frame comprises a top special-shaped formwork and a bottom corner formwork, the top special-shaped formwork is fixed below a top cross beam of the trolley body frame, the shape of the top special-shaped formwork is consistent with the special-shaped outline of a middle partition wall top pre-buried steel plate area, and the edge of the top special-shaped formwork is detachably connected with the top of a side large formwork of the trolley body frame through bolts. The problems that in the prior art, the construction process is low in efficiency, one-time pouring is difficult, formwork abrasion is large, and narrow space adaptability is poor are solved, and the beneficial effects of being high in construction efficiency, stable in structure, convenient and fast to operate and the like are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of underground tunnel construction equipment, and particularly to a special-shaped middle partition wall trolley for a connecting-arch tunnel. Background Art

[0002] In underground tunnel engineering, connecting-arch tunnels are widely used due to advantages such as a compact structure and land saving. As a key load-bearing structure of a connecting-arch tunnel, the construction quality and efficiency of the middle partition wall directly affect the overall safety and construction period of the tunnel. Traditional middle partition wall construction in connecting-arch tunnels faces many technical bottlenecks: The construction process is not smooth: Conventional middle partition wall trolleys need to be in place first and then bind steel bars, and the connection of processes is inefficient, unable to form an assembly line operation, resulting in an extended construction period. For example, due to the design of the front cross beam of some trolleys, steel bar binding needs to be carried out after the trolley is in place, with limited operating space and low construction efficiency; It is difficult to pour in one go: Existing technologies are difficult to achieve one-time pouring from the bottom of the tunnel to the top of the tunnel, and often require secondary formwork closing or grouting, increasing the construction complexity and quality risks. For example, the design of the top arc beam of some trolleys causes the middle partition wall to not be able to be poured to the top of the tunnel, and subsequent patching is required, affecting the structural integrity; The formwork friction loss is large: The formwork at the rear end of the trolley relies on sliding friction with the already poured wall surface to support, which easily causes formwork wear and wall surface damage, increasing the maintenance cost and affecting the construction accuracy; Poor adaptability to narrow spaces: The double-trolley counterweight scheme requires a large operating space and is difficult to implement in a narrow middle pilot tunnel environment, limiting its application scenarios; The operation of the corner formwork is cumbersome: The bottom formwork lacks a flexible formwork closing and removing mechanism. When the inclination of the wall is large, the formwork needs to be frequently disassembled and assembled, which is time-consuming and laborious and cannot meet the requirements of rapid construction.

[0003] Generally speaking, the existing middle partition wall trolley technology cannot simultaneously solve problems such as the "bind steel bars first and then the trolley is in place for pouring" assembly line operation, one-time pouring and forming, reducing formwork friction, and adapting to construction in narrow spaces. Therefore, it is necessary to design a special-shaped middle partition wall trolley for a connecting-arch tunnel. Summary of the Invention

[0004] The purpose of the present invention is to provide a special-shaped middle partition wall trolley for a connecting-arch tunnel to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A special-shaped middle partition wall trolley for a connecting-arch tunnel, including a trolley main frame; An arched connecting brace is provided at the front end of the top of the trolley main frame. The arched connecting brace is an arc-shaped structure, and its radian is adapted to the shape of the top of the middle partition wall steel bar skeleton, and is fixed to the front end of the top cross beam of the trolley main frame by welding, for supporting the overall stability of the trolley and guiding the trolley to pass through the already bound steel bar skeleton; The formwork system of the trolley main body frame includes a top special-shaped formwork and a bottom corner formwork. The top special-shaped formwork is fixed below the top cross beam of the trolley main body frame, and its shape is consistent with the special-shaped contour of the embedded steel plate area at the top of the middle partition wall. The edge is detachably connected to the top of the side large formwork of the trolley main body frame by bolts. The side large formwork is provided with a first layer of windows and a second layer of windows. The bottom corner formwork is connected to the large formwork by a pin shaft.

[0006] Preferably, the bottom corner formwork is hinged to the bottom of the side large formwork by a pin shaft to form a rotatable linkage mechanism. The bottom of the bottom corner formwork is provided with rollers, and the rollers are installed on the bottom edge of the corner formwork through bearings, and the rolling direction of the rollers is consistent with the trolley traveling direction.

[0007] Preferably, a support wheel is arranged at the rear end of the trolley main body frame. The support wheel is installed on the rear end of the bottom longitudinal beam of the trolley main body frame through a wheel shaft, and the height position of the support wheel is flush with the top surface of the already poured middle partition wall, which is used to convert the sliding friction between the formwork and the concrete surface into rolling friction.

[0008] Preferably, a hydraulic cylinder is arranged between the two side main beams and the top cross beam of the trolley main body frame. One end of the hydraulic cylinder is fixed to the outside of the main beam through a hinge seat, and the other end is connected to the top cross beam through a pin shaft, which is used to drive the synchronous telescopic positioning of the formwork system.

[0009] Preferably, a lead screw adjusting mechanism is arranged between the top cross beam of the trolley main body frame and the top special-shaped formwork, and between the bottom longitudinal beam and the bottom corner formwork. One end of the lead screw of the lead screw adjusting mechanism is fixed to the trolley main body frame through a nut seat, and the other end is connected to the formwork through a spherical joint, which is used for fine adjustment of the formwork position.

[0010] Preferably, exhaust pipes are arranged at intervals on the top special-shaped formwork. The exhaust pipes vertically penetrate the top special-shaped formwork and extend upward. The bottom end of the exhaust pipe is flush with the concrete pouring surface at the top of the middle partition wall, and the top end exceeds the design elevation of the middle partition wall by 50 cm.

[0011] Preferably, a servo motor traveling mechanism is arranged at the bottom of the trolley main body frame. The servo motor traveling mechanism is connected to the driving wheel at the bottom of the trolley through a reducer, and the driving wheel cooperates with the track. The track is fixed to the tunnel foundation through anchor bolts, and the laying direction of the track is parallel to the trolley traveling direction.

[0012] Preferably, a method for using a special-shaped middle partition wall trolley for a double-arch tunnel includes the following steps: A. Move the trolley main frame along the track to the construction area to be constructed. Precisely control the traveling direction and position through the servo motor traveling mechanism. Start the hydraulic cylinder to drive the synchronous expansion and contraction of the formwork system, so that the top special-shaped formwork aligns with the special-shaped contour of the embedded steel plate area at the top of the middle partition wall, and the bottom corner formwork fits the bottom corner position of the middle partition wall; B. Make fine adjustments to the formwork position through the lead screw adjustment mechanism to ensure that the formwork is consistent with the designed contour of the middle partition wall. At the same time, fix the top of the top special-shaped formwork and the side large formwork with bolts, and fix the bottom of the bottom corner formwork and the side large formwork with pin shafts to form a stable formwork system; C. Utilize the arched connecting brace at the front end of the top of the trolley main frame. Its arc-shaped structure is adapted to the shape of the top of the middle partition wall steel reinforcement cage. Slowly push the trolley through the already tied steel reinforcement cage. During the process, the arched connecting brace supports the overall stability of the trolley and guides the positioning of the steel reinforcement cage to avoid deformation of the steel reinforcement cage; D. When the bottom end of the exhaust pipe on the top special-shaped formwork is flush with the top concrete pouring surface of the middle partition wall, start pouring concrete. During the pouring process, the concrete fills the formwork space from bottom to top, and the air is discharged through the exhaust pipe until the concrete overflows from the top end of the exhaust pipe exceeding the designed elevation of the middle partition wall by 50 cm, indicating that the pouring is completed; E. After the concrete begins to set, remove the connecting bolts at the top of the top special-shaped formwork and the side large formwork, and release the pin shaft connection at the bottom of the bottom corner formwork and the side large formwork, so that the bottom corner formwork rotates downward and retracts through the rotatable linkage mechanism formed by the pin shaft hinge; Start the support wheels at the rear end of the trolley main frame, whose height is flush with the top surface of the already poured middle partition wall, convert the sliding friction between the formwork and the concrete surface into rolling friction, and cooperate with the bottom servo motor traveling mechanism to drive the trolley to move along the track to the next construction area.

[0013] Beneficial effects: The present invention solves the problems in the prior art such as low construction process efficiency, difficult one-time pouring, large formwork wear, and poor adaptability to narrow spaces. It has the advantages of high construction efficiency, stable structure, and convenient operation, and is suitable for the rapid construction of special-shaped middle partition walls in double-arch tunnels; The innovative combination of "arched connecting brace + special-shaped formwork + rolling support" provides a replicable and efficient construction mode for similar projects, especially suitable for the construction of double-arch tunnels in urban underground spaces and mountainous complex geological conditions, and has significant social and economic benefits and industry guiding significance.

[0014] The above description is only an overview of the technical solution of the embodiment of the present application. In order to be able to understand the technical means of the embodiment of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the embodiment of the present application more obvious and understandable, the following specifically enumerates the specific implementation manners of the present application Description of the Drawings

[0015] Figure 1 Structural schematic diagram of the partition trolley of the present invention; Figure 2 Cross-sectional view of the partition trolley of the present invention; Figure 3 Schematic diagram of the connection between the corner formwork and the large formwork in the present invention Figure 1 ; Figure 4 Schematic diagram of the connection between the corner formwork and the large formwork in the present invention Figure 2 ; Figure 5 Schematic diagram of the connection between the corner formwork and the large formwork in the present invention Figure 3 ; In the figure: trolley main frame 1, arched connecting brace 2, top special-shaped formwork 3, bottom corner formwork 4, side large formwork 5, first-layer window 6, second-layer window 7, pin shaft 8, roller 9, support wheel 10, hydraulic cylinder 11, screw rod adjustment mechanism 12, servo motor traveling mechanism 13. Specific implementation manners

[0016] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the drawings are intended to cover non-exclusive inclusion.

[0018] The orientation terms appearing in the following description are all the directions shown in the figure and do not limit the specific structure of this application. For example, in the description of this application, terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of this application.

[0019] In addition, terms such as "first" and "second" in the description and claims of this application or in the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order, and may explicitly or implicitly include one or more of such features.

[0020] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, the "connection" or "coupling" of a mechanical structure may refer to a physical connection. For example, a physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a fixed connection through screws, bolts, or other fixing members; a physical connection may also be a detachable connection, such as a snap connection or a snap-fit connection; a physical connection may also be an integral connection, such as a connection formed by welding, bonding, or integral molding. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0021] In order to enable those skilled in the art of this technology to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the drawings.

[0022] Please refer to Figures 1 - 5 , the present invention discloses a special-shaped middle partition wall trolley for a multi-arch tunnel, including a trolley main body frame 1; An arched connecting brace 2 is provided at the front end of the top of the trolley main body frame 1. The arched connecting brace 2 is an arc-shaped structure, and its radian is adapted to the shape of the top of the middle partition wall steel bar skeleton, ensuring that the trolley can smoothly pass through the already tied steel bar skeleton during the walking process, realizing the construction process of "tying the steel bars first and then positioning the trolley". And it is fixed to the front end of the top cross beam of the trolley main body frame 1 by welding, and is used to support the overall stability of the trolley and guide the trolley to pass through the already tied steel bar skeleton; The formwork system of the trolley main body frame 1 includes a top special-shaped formwork 3 and a bottom corner formwork 4. The top special-shaped formwork 3 is fixed below the top cross beam of the trolley main body frame 1, and its shape is consistent with the special-shaped contour of the embedded steel plate area at the top of the middle partition wall, and the edge is detachably connected to the top of the side large formwork 5 of the trolley main body frame 1 by bolts; a first layer of window 6 and a second layer of window 7 are provided on the side large formwork 5.

[0023] In the present invention, the bottom corner formwork 4 and the bottom of the side large formwork 5 are hinged and connected by a pin shaft 8 to form a rotatable linkage mechanism; the corner formwork adopts a combined design and is composed of a right-angle section and an inclined section, and the inclination angle can be adjusted according to the slope of the bottom of the middle partition wall. A roller 9 is arranged at the bottom of the bottom corner formwork 4, and the roller 9 is installed at the bottom edge of the corner formwork 4 through a bearing, and the rolling direction of the roller is consistent with the traveling direction of the trolley. During demolding, the corner formwork can be driven by the traveling of the trolley to slide away from the concrete surface without separate disassembly, realizing rapid formwork closing and demolding.

[0024] In the present invention, a support wheel 10 is arranged at the rear end of the trolley main body frame 1. The support wheel 10 is installed at the rear end of the bottom longitudinal beam of the trolley main body frame 1 through a wheel shaft, and the height position of the support wheel 10 is flush with the top surface of the already cast middle partition wall, which is used to convert the sliding friction between the formwork and the concrete surface into rolling friction. The support wheel supports on the already cast middle partition wall concrete surface, converting the sliding friction between the formwork and the concrete surface into rolling friction, reducing formwork wear, and improving the stability of the trolley during traveling at the same time.

[0025] In the present invention, a hydraulic cylinder 11 is arranged between the two side main beams and the top cross beam of the trolley main body frame 1. One end of the hydraulic cylinder 11 is fixed to the outside of the main beam through a hinge seat, and the other end is connected to the top cross beam through a pin shaft, which is used to drive the synchronous telescopic positioning of the formwork system. The hydraulic cylinders are uniformly controlled by an oil pump station, and the synchronous telescopic of the top and two-side formworks of the trolley can be realized to ensure the formwork positioning accuracy.

[0026] In the present invention, a lead screw adjustment mechanism 12 is arranged between the top cross beam of the trolley main body frame 1 and the top special-shaped formwork 3, and between the bottom longitudinal beam and the bottom corner formwork 4. One end of the lead screw of the lead screw adjustment mechanism 12 is fixed to the trolley main body frame 1 through a nut seat, and the other end is connected to the formwork through a spherical joint, which is used for fine adjustment of the formwork position. The lead screw adjustment mechanism includes a top lead screw and a bottom lead screw. The top lead screw is arranged between the top cross beam and the special-shaped formwork, and the bottom lead screw is arranged between the bottom longitudinal beam and the corner formwork. The lead screw adopts a trapezoidal thread with a pitch of 5 mm and is driven by a manual wrench or a power tool, and the formwork position can be finely adjusted to ensure that the size of the middle partition wall meets the design requirements.

[0027] In the present invention, exhaust pipes are arranged at intervals on the top special-shaped formwork 3. The exhaust pipes vertically penetrate through the top special-shaped formwork 3 and extend upward. The bottom end of the exhaust pipe is flush with the top concrete pouring surface of the middle partition wall, and the top end exceeds the design elevation of the middle partition wall by 50 cm. The exhaust pipes are used to discharge the air generated during the concrete pouring process to ensure that the top concrete is filled densely.

[0028] In addition, in the present invention, a servo motor traveling mechanism 13 is provided at the bottom of the trolley main body frame 1. The servo motor traveling mechanism 13 is connected to the driving wheels at the bottom of the trolley through a speed reducer, and the driving wheels cooperate with the rails. The rails are fixed to the tunnel foundation by anchor bolts, and the laying direction of the rails is parallel to the traveling direction of the trolley, enabling precise adjustment of the trolley traveling speed and ensuring smooth movement of the trolley. Working principle: A method for using a special-shaped middle partition wall trolley for a connecting-arch tunnel includes the following steps: A. Move the trolley main body frame along the rails to the construction area to be constructed. Precisely control the traveling direction and position through the servo motor traveling mechanism. Start the hydraulic cylinder to drive the synchronous expansion and contraction of the formwork system, so that the top special-shaped formwork aligns with the special-shaped contour of the embedded steel plate area at the top of the middle partition wall, and the bottom corner formwork fits the bottom corner position of the middle partition wall. B. Fine-tune the position of the formwork through the lead screw adjustment mechanism to ensure that the formwork is consistent with the designed contour of the middle partition wall. At the same time, fix the top special-shaped formwork and the top of the side large formwork with bolts, and fix the bottom corner formwork and the bottom of the side large formwork with pins to form a stable formwork system. C. Utilize the arched connecting brace at the front end of the top of the trolley main body frame. Its arc-shaped structure is adapted to the shape of the top of the middle partition wall steel bar framework. Slowly push the trolley through the already tied steel bar framework. During the process, the arched connecting brace supports the overall stability of the trolley and guides the positioning of the steel bar framework to avoid deformation of the steel bar framework. D. When the bottom end of the exhaust pipe on the top special-shaped formwork is flush with the concrete pouring surface at the top of the middle partition wall, start pouring concrete. During the pouring process, the concrete fills the formwork space from bottom to top, and the air is discharged through the exhaust pipe until the concrete overflows from the top end of the exhaust pipe exceeding the designed elevation of the middle partition wall by 50 cm, indicating that the pouring is completed. E. After the concrete begins to set, remove the connecting bolts at the top of the top special-shaped formwork and the side large formwork, release the pin connection between the bottom corner formwork and the bottom of the side large formwork, and make the bottom corner formwork rotate downward and retract through the rotatable linkage mechanism formed by pin hinges. Start the support wheels at the rear end of the trolley main body frame, whose height is flush with the top surface of the already poured middle partition wall, convert the sliding friction between the formwork and the concrete surface into rolling friction, and cooperate with the bottom servo motor traveling mechanism to drive the trolley to move along the rails to the next construction area.

[0029] In summary, the present invention solves the problems in the prior art such as low construction process efficiency, difficulty in one-time pouring, large formwork wear, and poor adaptability to narrow spaces. It has the advantages of high construction efficiency, stable structure, and convenient operation, and is applicable to the rapid construction of the special-shaped middle partition wall of a multi-arch tunnel. The innovative combination of "arched connecting strut + special-shaped formwork + rolling support" provides a replicable and efficient construction mode for similar projects, especially applicable to the construction of multi-arch tunnels in urban underground spaces and mountainous complex geological conditions, and has significant social and economic benefits and industry guiding significance.

[0030] As described above, the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments or equivalently replace some of the technical features. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A special-shaped middle partition trolley for a multi-arch tunnel, characterized in that: It includes a trolley main body frame (1); At the front end of the top of the trolley main body frame (1), an arched connecting brace (2) is provided. The arched connecting brace (2) is an arc-shaped structure, whose radian is adapted to the shape of the top of the middle partition wall steel bar framework, and is fixed to the front end of the top cross beam of the trolley main body frame (1) by welding, for supporting the overall stability of the trolley and guiding the trolley to pass through the already tied steel bar framework; The formwork system of the trolley main body frame (1) includes a top special-shaped formwork (3) and a bottom corner formwork (4). The top special-shaped formwork (3) is fixed below the top cross beam of the trolley main body frame (1), and its shape is consistent with the special-shaped contour of the area of the embedded steel plate at the top of the middle partition wall, and the edge is detachably connected to the top of the side large formwork (5) of the trolley main body frame (1) by bolts; The first layer of windows (6) and the second layer of windows (7) are arranged on the side large formwork (5).

2. The special-shaped middle partition trolley for a multi-arch tunnel according to claim 1, characterized in that: The bottom corner formwork (4) is hinged to the bottom of the side large formwork (5) by a pin shaft (8) to form a rotatable linkage mechanism; A roller (9) is arranged at the bottom of the bottom corner formwork (4), and the roller (9) is installed at the bottom edge of the bottom corner formwork (4) through a bearing, and the rolling direction of the roller is consistent with the trolley traveling direction.

3. The special-shaped middle partition trolley for a multi-arch tunnel according to claim 2, characterized in that: A support wheel (10) is arranged at the rear end of the trolley main body frame (1). The support wheel (10) is installed at the rear end of the bottom longitudinal beam of the trolley main body frame (1) through a wheel shaft, and the height position of the support wheel (10) is flush with the top surface of the already poured middle partition wall, for converting the sliding friction between the formwork and the concrete surface into rolling friction.

4. A special-shaped middle partition trolley for a multi-arch tunnel according to claim 1, characterized in that: A hydraulic cylinder (11) is arranged between the two side main beams and the top cross beam of the trolley main body frame (1). One end of the hydraulic cylinder (11) is fixed to the outside of the main beam through a hinge seat, and the other end is connected to the top cross beam through a pin shaft, for driving the synchronous telescopic positioning of the formwork system.

5. A special-shaped middle partition trolley for a multi-arch tunnel according to claim 1, characterized in that: A lead screw adjusting mechanism (12) is arranged between the top cross beam of the trolley main body frame (1) and the top special-shaped formwork (3), and between the bottom longitudinal beam and the bottom corner formwork (4). One end of the lead screw of the lead screw adjusting mechanism (12) is fixed to the trolley main body frame (1) through a nut seat, and the other end is connected to the formwork through a spherical joint, for fine adjustment of the formwork position.

6. The special-shaped middle partition trolley for a multi-arch tunnel according to claim 1, wherein: Exhaust pipes are arranged at intervals on the top special-shaped formwork (3). The exhaust pipes vertically penetrate through the top special-shaped formwork (3) and extend upward. The bottom end of the exhaust pipe is flush with the concrete pouring surface at the top of the middle partition wall, and the top end exceeds the design elevation of the middle partition wall by 50 cm.

7. A special-shaped middle partition trolley for a multi-arch tunnel according to claim 1, characterized in that: A servo motor traveling mechanism (13) is arranged at the bottom of the trolley main body frame (1). The servo motor traveling mechanism (13) is connected to the driving wheel at the bottom of the trolley through a reducer, and the driving wheel cooperates with the track; The track is fixed to the tunnel foundation through anchor bolts, and the laying direction of the track is parallel to the trolley traveling direction.

8. A method for using a special-shaped middle partition trolley for a multi-arch tunnel as described in claim 1, characterized in that: It includes the following steps: A. Move the trolley main frame along the track to the construction area to be constructed. Precisely control the walking direction and position through the servo-motor walking mechanism. Start the hydraulic cylinder to drive the synchronous expansion and contraction of the formwork system, so that the top special-shaped formwork aligns with the special-shaped contour of the embedded steel plate area at the top of the middle partition wall, and the bottom corner formwork fits the bottom corner position of the middle partition wall; B. Make fine adjustments to the formwork position through the screw adjustment mechanism to ensure that the formwork is consistent with the designed contour of the middle partition wall. At the same time, fix the top special-shaped formwork and the top of the side large formwork with bolts, and fix the bottom corner formwork and the bottom of the side large formwork with pin shafts to form a stable formwork system; C. Utilize the arched connecting brace at the front end of the top of the trolley main frame. Its arc-shaped structure is adapted to the shape of the top of the middle partition wall steel reinforcement cage. Slowly push the trolley through the already tied steel reinforcement cage. During the process, the arched connecting brace supports the overall stability of the trolley and guides the positioning of the steel reinforcement cage to avoid deformation of the steel reinforcement cage; D. When the bottom end of the exhaust pipe on the top special-shaped formwork is flush with the top concrete pouring surface of the middle partition wall, start pouring concrete. During the pouring process, the concrete fills the formwork space from bottom to top, and the air is discharged through the exhaust pipe until the concrete overflows at the top end of the exhaust pipe 50 cm above the designed elevation of the middle partition wall, indicating the completion of pouring; E. After the concrete has initially set, remove the connecting bolts between the top special-shaped formwork and the top of the side large formwork, and release the pin shaft connection between the bottom corner formwork and the bottom of the side large formwork, so that the bottom corner formwork rotates downward and retracts through the rotatable linkage mechanism formed by the pin shaft hinge; Start the support wheels at the rear end of the trolley main frame, whose height is flush with the top surface of the already poured middle partition wall, convert the sliding friction between the formwork and the concrete surface into rolling friction, and cooperate with the bottom servo-motor walking mechanism to drive the trolley to move along the track to the next construction area.

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